UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   Form 10-QSB
(Mark One)
[X]   QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934

                 For the quarterly period ended June 30, 2005


[ ]   TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE EXCHANGE ACT


             For the transition period from _________to _________

                         Commission file number 0-14528


                      CENTURY  PENSION  INCOME  FUND XXIII
       (Exact name of small business issuer as specified in its charter)



         California                                              94-2963120
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

                         55 Beattie Place, P.O. Box 1089
                        Greenville, South Carolina 29602
                    (Address of principal executive offices)

                                 (864) 239-1000
                           (Issuer's telephone number)


Check  whether the issuer (1) filed all reports  required to be filed by Section
13 or 15(d) of the  Exchange  Act during the past 12 months (or for such shorter
period that the  registrant  was required to file such reports) and (2) has been
subject to such filing requirements for the past 90 days.
Yes  X   No ___



                         PART I - FINANCIAL INFORMATION


ITEM 1.     FINANCIAL STATEMENTS



                        CENTURY PENSION INCOME FUND XXIII

           CONSOLIDATED STATEMENT OF NET LIABILITIES IN LIQUIDATION
                                   (Unaudited)
                                 (in thousands)

                                  June 30, 2005



Assets
  Cash and cash equivalents                                           $ 23
  Receivables and deposits                                                22
  Debt trustee escrow                                                    732
                                                                         777
Liabilities
  Accounts payable                                                        17
  Other liabilities                                                       35
  Non-recourse promissory notes (Note A):
   Principal                                                          11,263
   Interest payable                                                   18,602
  Estimated costs during the period of liquidation                     1,414
                                                                      31,331

Net liabilities in liquidation                                      $(30,554)


         See Accompanying Notes to Consolidated Financial Statements


<PAGE>

                        CENTURY PENSION INCOME FUND XXIII

     CONSOLIDATED STATEMENTS OF CHANGES IN NET LIABILITIES IN LIQUIDATION
                                   (Unaudited)
                                 (in thousands)


<TABLE>
<CAPTION>


                                                                  For the Six Months
                                                                    Ended June 30,
                                                                  2005           2004

<S>                                                             <C>            <C>
Net liabilities in liquidation at beginning of period           $(29,871)      $(27,731)

Changes in net liabilities in liquidation attributed to:
   Decrease in cash and cash equivalents                             (51)           (81)
   Decrease in receivables and deposits                               --             (2)
   (Decrease) increase in debt trustee escrow                         (7)            11
   Decrease in accounts payable                                        9             --
   Decrease in other liabilities                                       9             30
   Increase in non-recourse promissory notes -
      interest payable                                              (651)          (654)
   Decrease (increase) in estimated costs during the
      period of liquidation                                            8            (11)

Net liabilities in liquidation at end of period                 $(30,554)      $(28,438)

         See Accompanying Notes to Consolidated Financial Statements
</TABLE>



<PAGE>




                        CENTURY PENSION INCOME FUND XXIII

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)


Note A - Basis of Presentation

As of December 31, 1999, Century Pension Income Fund XXIII (the "Partnership" or
"Registrant") adopted the liquidation basis of accounting.

The Partnership's  Nonrecourse  Promissory Notes (the "Notes") were secured by a
deed of trust on all properties owned in fee by the Partnership.  The Notes were
issued in two series.  The "1985 Series Notes", in the original principal amount
of $33,454,000 bear interest at 12% per annum,  and the "1986 Series Notes",  in
the original  principal  amount of  $8,485,000,  bear interest at 10% per annum,
except that portions of the interest  were  deferred,  provided the  Partnership
made minimum interest payments of 5% on the unpaid principal balance.  The Notes
had a balance of principal and deferred interest of approximately $80,000,000 at
their maturity date of February 15, 1999. The  Partnership was unable to satisfy
the Notes at maturity  and as a result,  the  Partnership  was in default on the
Notes.  Fox Capital  Management  Corporation  ("FCMC" or the  "Managing  General
Partner")  contacted the indenture trustee for the Notes regarding this default.
In connection with these conversations, on July 30, 1999 the Partnership entered
into a forbearance  agreement with the indenture  trustee  pursuant to which the
indenture  trustee  agreed not to  exercise  its rights and  remedies  under the
indenture for up to 390 days. In turn, the Partnership  agreed to (a) deliver to
the indenture  trustee for the benefit of the noteholders all of the accumulated
cash  of the  Partnership,  less  certain  reserves  and  anticipated  operating
expenses,  (b) market all of its  properties  for sale, (c) deliver all net cash
proceeds  from any  sales to the  indenture  trustee  until  the Notes are fully
satisfied and (d) comply with the reporting requirements under the indenture. On
March 31, 2003,  the  Partnership  sold the last  remaining  property,  Commerce
Plaza, to a third party. The net sales proceeds of approximately $1,270,000 were
delivered  to the  indenture  trustee to be applied  to the  amounts  due to the
noteholders.   The  Managing  General  Partner  is  a  subsidiary  of  Apartment
Investment  and  Management  Company  ("AIMCO"),  a publicly  traded real estate
investment trust.

The sale of the Partnership's  last remaining asset did not generate  sufficient
proceeds to pay off the Notes in full. Upon the last payment on the Notes by the
indenture trustee, the Partnership is expected to terminate.

As a result of the  decision  to  liquidate  the  Partnership,  the  Partnership
changed its basis of accounting for its financial  statements to the liquidation
basis of  accounting.  Consequently,  assets have been valued at  estimated  net
realizable  value and liabilities  are presented at their  estimated  settlement
amounts, including estimated costs associated with carrying out the liquidation.
The valuation of assets and liabilities  necessarily requires many estimates and
assumptions  and  there  are  substantial  uncertainties  in  carrying  out  the
liquidation.  The actual  realization  of assets and  settlement of  liabilities
could be higher or lower than amounts  indicated  and is based upon the Managing
General  Partner's  estimates  as of  the  date  of the  consolidated  financial
statements.

Included in  liabilities  in the  consolidated  statement of net  liabilities in
liquidation  as of June 30, 2005 is  approximately  $1,414,000 of costs that the
Managing  General  Partner  estimates  will be  incurred  during  the  period of
liquidation  based  on the  assumption  that  the  liquidation  process  will be
completed by June 30, 2006. Because the success in realization of assets and the
settlement  of  liabilities  is based on the  Managing  General  Partner's  best
estimates,  the  liquidation  period may be shorter than  projected or it may be
extended beyond the projected period.


<PAGE>




Note B - Transactions with Affiliated Parties

The Partnership has no employees and depends on the Managing General Partner and
its  affiliates  for  the  management  and  administration  of  all  partnership
activities.   The  Partnership   Agreement  provides  for  certain  payments  to
affiliates for services and as  reimbursement  of certain  expenses  incurred by
affiliates on behalf of the Partnership.  No such reimbursements were charged or
paid during the six months ended June 30, 2005 and 2004.

Note C - Contingencies

In March 1998, several putative unit holders of limited partnership units of the
Partnership  commenced an action  entitled  Rosalie  Nuanes,  et al. v. Insignia
Financial Group, Inc., et al. (the "Nuanes action") in the Superior Court of the
State of  California  for the  County  of San  Mateo.  The  plaintiffs  named as
defendants,  among others,  the  Partnership,  its Managing  General Partner and
several of their  affiliated  partnerships  and corporate  entities.  The action
purported  to  assert  claims  on  behalf  of a class of  limited  partners  and
derivatively  on behalf  of a number  of  limited  partnerships  (including  the
Partnership)  that are named as nominal  defendants,  challenging,  among  other
things,  the  acquisition  of  interests  in certain  Managing  General  Partner
entities by Insignia Financial Group, Inc.  ("Insignia") and entities that were,
at one  time,  affiliates  of  Insignia;  past  tender  offers  by the  Insignia
affiliates to acquire limited partnership units;  management of the partnerships
by the  Insignia  affiliates;  and the series of  transactions  which  closed on
October 1, 1998 and February 26, 1999 whereby  Insignia and Insignia  Properties
Trust,  respectively,  were merged into AIMCO.  The plaintiffs  sought  monetary
damages and equitable relief, including judicial dissolution of the Partnership.
In addition,  during the third quarter of 2001, a complaint  captioned Heller v.
Insignia  Financial  Group (the  "Heller  action")  was filed  against  the same
defendants  that are named in the  Nuanes  action.  On or about  August 6, 2001,
plaintiffs filed a first amended  complaint.  The Heller action was brought as a
purported derivative action, and asserted claims for, among other things, breach
of fiduciary  duty,  unfair  competition,  conversion,  unjust  enrichment,  and
judicial  dissolution.  On January 28, 2002, the trial court granted  defendants
motion to strike the complaint. Plaintiffs took an appeal from this order.

On January 8, 2003,  the parties filed a  Stipulation  of Settlement in proposed
settlement of the Nuanes  action and the Heller  action.  On June 13, 2003,  the
court granted final approval of the settlement and entered  judgment in both the
Nuanes and Heller actions. On August 12, 2003, an objector ("Objector") filed an
appeal (the "Appeal")  seeking to vacate and/or reverse the order  approving the
settlement and entering judgment  thereto.  On May 4, 2004, the Objector filed a
second appeal  challenging  the court's use of a referee and its order requiring
Objector to pay those fees.

On March 21, 2005, the Court of Appeals issued opinions in both pending appeals.
With regard to the settlement and judgment entered thereto, the Court of Appeals
vacated  the trial  court's  order and  remanded  to the trial court for further
findings  on the basis that the "state of the record is  insufficient  to permit
meaningful  appellate  review".  With regard to the second appeal,  the Court of
Appeals  reversed the order requiring the Objector to pay referee fees. On April
26, 2005,  the Court of Appeals  lifted the stay of a pending  appeal related to
the Heller action and the trial court's order striking the  complaint.  On April
28, 2005, the Objector  filed a Petition for Review with the California  Supreme
Court in connection with the opinion vacating the order approving settlement and
remanding for further findings.  On June 10, 2005, the California  Supreme Court
denied  Objector's  Petition for Review and the Court of Appeals sent the matter
back to the trial court on June 21,  2005.  The parties  intend to ask the trial
court to make further findings in connection with settlement consistent with the
Court of Appeal's  remand order.  With respect to the related Heller appeal,  on
July 28, 2005,  the Court of Appeals  reversed the trial court's order  striking
the first amended complaint.

The  Managing  General  Partner  does  not  anticipate  that  any  costs  to the
Partnership,  whether legal or settlement costs,  associated with this case will
be material to the Partnership's overall operations.

On August 17, 2004, the  Partnership was sued,  along with the Managing  General
Partner, Fox Capital Management  Corporation,  and general partner, Fox Partners
V. The suit was brought in the Supreme Court of the State of New York,  New York
County by J.P. Morgan Trust Company,  N.A., ("Trustee") formerly Chase Manhattan
Bank & Trust  Company,  N.A., as Trustee under the Trust  Indenture  dated as of
February 22, 1984.  The Trustee  alleges claims of breach of contract and unjust
enrichment based on defendants'  alleged breaches of their  obligations  under a
Forbearance  Agreement  dated as of July 30, 1999. The Trustee seeks the payment
of certain funds that it contends were  improperly  withheld or  misappropriated
under the Forbearance  Agreement.  In its breach of contract claim,  the Trustee
claims that it is entitled to $713,151  plus  interest,  which is  comprised  of
management fees paid to Fox Partners V and outstanding reserves allegedly due to
the  Trustee.  The  Partnership  will  vigorously  defend  the  litigation.  The
Partnership's  management  does not  believe  that the  litigation  will  have a
material adverse effect on the Partnership.

SEC Investigation

The  Central  Regional  Office of the  United  States  Securities  and  Exchange
Commission (the "SEC")  continues its formal  investigation  relating to certain
matters.  Although  the staff of the SEC is not limited in the areas that it may
investigate,  AIMCO believes the areas of  investigation  have included  AIMCO's
miscalculated   monthly  net  rental  income  figures  in  third  quarter  2003,
forecasted  guidance,  accounts  payable,  rent  concessions,   vendor  rebates,
capitalization of payroll and certain other costs, tax credit transactions,  and
tender offers for limited  partnership  interests.  AIMCO is cooperating  fully.
AIMCO is not able to predict when the investigation will be resolved. AIMCO does
not believe that the ultimate outcome will have a material adverse effect on its
consolidated  financial  condition  or results  of  operations.  Similarly,  the
Managing  General Partner does not believe that the ultimate outcome will have a
material adverse effect on the Partnership's consolidated financial condition or
results of operations.


<PAGE>



ITEM 2.     MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION

The matters discussed in this report contain certain forward-looking statements,
including, without limitation, statements regarding future financial performance
and the effect of government  regulations.  Actual results may differ materially
from those described in the forward-looking statements and will be affected by a
variety of risks and factors including,  without limitation:  national and local
economic  conditions;  the terms of  governmental  regulations  that  affect the
Registrant and interpretations of those regulations; litigation, including costs
associated  with  defending  claims and any  adverse  outcomes.  Readers  should
carefully review the Registrant's financial statements and the notes thereto, as
well as the risk factors  described in the documents the  Registrant  files from
time to time with the Securities and Exchange Commission.

As of December  31,  1999,  the  Partnership  adopted the  liquidation  basis of
accounting.  The Partnership's  Nonrecourse Promissory Notes (the "Notes") had a
balance of principal and deferred interest of approximately $80,000,000 at their
maturity date of February 15, 1999.  The  Partnership  was unable to satisfy the
Notes at maturity and as a result,  the Partnership was in default on the Notes.
The Managing  General  Partner  contacted  the  indenture  trustee for the Notes
regarding  this default.  In connection  with these  conversations,  on July 30,
1999, the  Partnership  entered into a forbearance  agreement with the indenture
trustee  pursuant to which the  indenture  trustee  agreed not to  exercise  its
rights  and  remedies  under  the  indenture  for up to 390 days.  In turn,  the
Partnership  agreed to (a) deliver to the  indenture  trustee for the benefit of
the  noteholders all of the accumulated  cash of the  Partnership,  less certain
reserves and anticipated  operating  expenses,  (b) market all of its properties
for sale,  (c) deliver  all net cash  proceeds  from any sales to the  indenture
trustee  until the Notes are fully  satisfied  and (d) comply with the reporting
requirements under the indenture.

On March 31, 2003, the Partnership  sold the last remaining  property,  Commerce
Plaza, to a third party. The net sales proceeds of approximately $1,270,000 were
delivered  to the  indenture  trustee to be applied  to the  amounts  due to the
noteholders.

The sale of the Partnership's  last remaining asset did not generate  sufficient
proceeds to pay off the Notes in full. Upon the last payment on the Notes by the
indenture trustee, the Partnership is expected to terminate.

As a result of the  decision  to  liquidate  the  Partnership,  the  Partnership
changed its basis of accounting for its financial  statements to the liquidation
basis of  accounting.  Consequently,  assets have been valued at  estimated  net
realizable  value and liabilities  are presented at their  estimated  settlement
amounts, including estimated costs associated with carrying out the liquidation.
The valuation of assets and liabilities  necessarily requires many estimates and
assumptions  and  there  are  substantial  uncertainties  in  carrying  out  the
liquidation.  The actual  realization  of assets and  settlement of  liabilities
could be higher or lower than amounts  indicated  and is based upon the Managing
General  Partner's  estimates  as of  the  date  of the  consolidated  financial
statements.

Included in  liabilities  in the  consolidated  statement of net  liabilities in
liquidation  as of June 30, 2005 is  approximately  $1,414,000 of costs that the
Managing  General  Partner  estimates  will be  incurred  during  the  period of
liquidation  based  on the  assumption  that  the  liquidation  process  will be
completed by June 30, 2006. Because the success in realization of assets and the
settlement  of  liabilities  is based on the  Managing  General  Partner's  best
estimates,  the  liquidation  period may be shorter than  projected or it may be
extended beyond the projected period.

During  the six  months  ended  June 30,  2005,  net  liabilities  increased  by
approximately $683,000. This increase is primarily due to an increase in accrued
interest payable on the Notes and a decrease in cash and cash equivalents.

During  the six  months  ended  June 30,  2004,  net  liabilities  increased  by
approximately $707,000. This increase is primarily due to an increase in accrued
interest payable on the Notes and a decrease in cash and cash equivalents.

In light of the maturity of the Notes, no distributions were made to the limited
partners for the six month periods ended June 30, 2005 and 2004.

In addition to its indirect  ownership of the Managing  General Partner interest
in the Partnership,  AIMCO owned 108 limited  partnership units (the "Units") in
the Partnership  representing  approximately  0.11% of the outstanding  units at
June 30,  2005.  Affiliates  of the  Managing  General  Partner also owned 5,511
(8.24%) of the Partnership's 1985 Nonrecourse Promissory Notes and 1,635 (9.64%)
of the  Partnership's  1986  Nonrecourse  Promissory  Notes  at June  30,  2005.
Although  the Managing  General  Partner  owes  fiduciary  duties to the limited
partners of the  Partnership,  the Managing  General Partner also owes fiduciary
duties to AIMCO as its sole stockholder. As a result, the duties of the Managing
General Partner, as managing general partner, to the Partnership and its limited
partners may come into conflict with the duties of the Managing  General Partner
to AIMCO as its sole stockholder.

ITEM 3.     CONTROLS AND PROCEDURES

(a) Disclosure Controls and Procedures.  The Partnership's management,  with the
participation of the principal executive officer and principal financial officer
of the Managing  General  Partner,  who are the equivalent of the  Partnership's
principal executive officer and principal financial officer,  respectively,  has
evaluated  the  effectiveness  of  the  Partnership's  disclosure  controls  and
procedures (as such term is defined in Rules  13a-15(e) and 15d-15(e)  under the
Securities  Exchange Act of 1934, as amended (the "Exchange Act")) as of the end
of the period covered by this report.  Based on such  evaluation,  the principal
executive  officer  and  principal  financial  officer of the  Managing  General
Partner, who are the equivalent of the Partnership's principal executive officer
and principal  financial officer,  respectively,  have concluded that, as of the
end of such period,  the  Partnership's  disclosure  controls and procedures are
effective.

(b) Internal Control Over Financial  Reporting.  There have not been any changes
in the Partnership's  internal control over financial reporting (as such term is
defined in Rules  13a-15(f)  and  15d-15(f)  under the Exchange  Act) during the
fiscal quarter to which this report relates that have  materially  affected,  or
are reasonably likely to materially affect,  the Partnership's  internal control
over financial reporting.


<PAGE>




                           PART II - OTHER INFORMATION


ITEM 1.     LEGAL PROCEEDINGS

In March 1998, several putative unit holders of limited partnership units of the
Partnership  commenced an action  entitled  Rosalie  Nuanes,  et al. v. Insignia
Financial Group, Inc., et al. (the "Nuanes action") in the Superior Court of the
State of  California  for the  County  of San  Mateo.  The  plaintiffs  named as
defendants,  among others,  the  Partnership,  its Managing  General Partner and
several of their  affiliated  partnerships  and corporate  entities.  The action
purported  to  assert  claims  on  behalf  of a class of  limited  partners  and
derivatively  on behalf  of a number  of  limited  partnerships  (including  the
Partnership)  that are named as nominal  defendants,  challenging,  among  other
things,  the  acquisition  of  interests  in certain  Managing  General  Partner
entities by Insignia Financial Group, Inc.  ("Insignia") and entities that were,
at one  time,  affiliates  of  Insignia;  past  tender  offers  by the  Insignia
affiliates to acquire limited partnership units;  management of the partnerships
by the  Insignia  affiliates;  and the series of  transactions  which  closed on
October 1, 1998 and February 26, 1999 whereby  Insignia and Insignia  Properties
Trust,  respectively,  were merged into AIMCO.  The plaintiffs  sought  monetary
damages and equitable relief, including judicial dissolution of the Partnership.
In addition,  during the third quarter of 2001, a complaint  captioned Heller v.
Insignia  Financial  Group (the  "Heller  action")  was filed  against  the same
defendants  that are named in the  Nuanes  action.  On or about  August 6, 2001,
plaintiffs filed a first amended  complaint.  The Heller action was brought as a
purported derivative action, and asserted claims for, among other things, breach
of fiduciary  duty,  unfair  competition,  conversion,  unjust  enrichment,  and
judicial  dissolution.  On January 28, 2002, the trial court granted  defendants
motion to strike the complaint. Plaintiffs took an appeal from this order.

On January 8, 2003,  the parties filed a  Stipulation  of Settlement in proposed
settlement of the Nuanes  action and the Heller  action.  On June 13, 2003,  the
court granted final approval of the settlement and entered  judgment in both the
Nuanes and Heller actions. On August 12, 2003, an objector ("Objector") filed an
appeal (the "Appeal")  seeking to vacate and/or reverse the order  approving the
settlement and entering judgment  thereto.  On May 4, 2004, the Objector filed a
second appeal  challenging  the court's use of a referee and its order requiring
Objector to pay those fees.

On March 21, 2005, the Court of Appeals issued opinions in both pending appeals.
With regard to the settlement and judgment entered thereto, the Court of Appeals
vacated  the trial  court's  order and  remanded  to the trial court for further
findings  on the basis that the "state of the record is  insufficient  to permit
meaningful  appellate  review".  With regard to the second appeal,  the Court of
Appeals  reversed the order requiring the Objector to pay referee fees. On April
26, 2005,  the Court of Appeals  lifted the stay of a pending  appeal related to
the Heller action and the trial court's order striking the  complaint.  On April
28, 2005, the Objector  filed a Petition for Review with the California  Supreme
Court in connection with the opinion vacating the order approving settlement and
remanding for further findings.  On June 10, 2005, the California  Supreme Court
denied  Objector's  Petition for Review and the Court of Appeals sent the matter
back to the trial court on June 21,  2005.  The parties  intend to ask the trial
court to make further findings in connection with settlement consistent with the
Court of Appeal's  remand order.  With respect to the related Heller appeal,  on
July 28, 2005, the Court of Appeal reversed the trial court's order striking the
first amended complaint.

The  Managing  General  Partner  does  not  anticipate  that  any  costs  to the
Partnership,  whether legal or settlement costs,  associated with this case will
be material to the Partnership's overall operations.

On August 17, 2004, the  Partnership was sued,  along with the Managing  General
Partner, Fox Capital Management  Corporation,  and general partner, Fox Partners
V. The suit was brought in the Supreme Court of the State of New York,  New York
County by J.P. Morgan Trust Company,  N.A., ("Trustee") formerly Chase Manhattan
Bank & Trust  Company,  N.A., as Trustee under the Trust  Indenture  dated as of
February 22, 1984.  The Trustee  alleges claims of breach of contract and unjust
enrichment based on defendants'  alleged breaches of their  obligations  under a
Forbearance  Agreement  dated as of July 30, 1999. The Trustee seeks the payment
of certain funds that it contends were  improperly  withheld or  misappropriated
under the Forbearance  Agreement.  In its breach of contract claim,  the Trustee
claims that it is entitled to $713,151  plus  interest,  which is  comprised  of
management fees paid to Fox Partners V and outstanding reserves allegedly due to
the  Trustee.  The  Partnership  will  vigorously  defend  the  litigation.  The
Partnership's  management  does not  believe  that the  litigation  will  have a
material adverse effect on the Partnership.

ITEM 2.     OTHER INFORMATION

            None.

ITEM 3.     EXHIBITS

            See Exhibit Index.



<PAGE>


                                   SIGNATURES



In accordance with the  requirements of the Exchange Act, the Registrant  caused
this  report to be  signed on its  behalf  by the  undersigned,  thereunto  duly
authorized.



                                    CENTURY PENSION INCOME FUND XXIII


                                    By:   FOX PARTNERS V
                                          Its General Partner


                                    By:   FOX CAPITAL MANAGEMENT CORPORATION
                                          Its Managing General Partner


                                    By:   /s/Martha L. Long
                                          Martha L. Long
                                          Senior Vice President


                                    By:   /s/Stephen B. Waters
                                          Stephen B. Waters
                                          Vice President


                                    Date: August 12, 2005



<PAGE>


                        CENTURY PENSION INCOME FUND XXIII

                                  Exhibit Index



Exhibit Number


      2           NPI Stock Purchase  Agreement,  dated as of August 17, 1995,
                  incorporated  by  reference  to  the  Partnership's  Current
                  Report on Form 8-K dated August 17, 1995.

      3.4         Agreement of Limited Partnership, incorporated by reference to
                  Exhibit A to the Prospectus of the  Partnership  dated July 1,
                  1985   and   thereafter    supplemented   contained   in   the
                  Partnership's Registration Statement on Form S-11 (Reg. No.
                  2-96389)

      31.1        Certification  of  equivalent  of  Chief  Executive  Officer
                  pursuant     to     Securities     Exchange     Act    Rules
                  13a-14(a)/15d-14(a),  as Adopted  Pursuant to Section 302 of
                  the Sarbanes-Oxley Act of 2002.

      31.2        Certification  of  equivalent  of  Chief  Financial  Officer
                  pursuant     to     Securities     Exchange     Act    Rules
                  13a-14(a)/15d-14(a),  as Adopted  Pursuant to Section 302 of
                  the Sarbanes-Oxley Act of 2002.

      32.1        Certification of the equivalent of the Chief Executive Officer
                  and Chief  Financial  Officer  Pursuant  to 18 U.S.C.  Section
                  1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley
                  Act of 2002.


<PAGE>



Exhibit 31.1


                                  CERTIFICATION


I, Martha L. Long, certify that:


1.    I have reviewed this quarterly report on Form 10-QSB of Century Properties
      Income Fund XXIII;

2.    Based on my knowledge,  this report does not contain any untrue  statement
      of a material fact or omit to state a material fact  necessary to make the
      statements made, in light of the circumstances under which such statements
      were made,  not  misleading  with  respect  to the period  covered by this
      report;

3.    Based on my  knowledge,  the  financial  statements,  and other  financial
      information  included  in this  report,  fairly  present  in all  material
      respects the financial condition,  results of operations and cash flows of
      the small  business  issuer as of, and for, the periods  presented in this
      report;

4.    The  small  business  issuer's  other  certifying  officer(s)  and  I  are
      responsible  for  establishing  and  maintaining  disclosure  controls and
      procedures (as defined in Exchange Act Rules  13a-15(e) and 15d-15(e)) for
      the small business issuer and have:

      (a)   Designed such  disclosure  controls and  procedures,  or caused such
            disclosure   controls  and  procedures  to  be  designed  under  our
            supervision,  to ensure that  material  information  relating to the
            small business issuer, including its consolidated  subsidiaries,  is
            made  known to us by  others  within  those  entities,  particularly
            during the period in which this report is being prepared;

      (b)   Evaluated  the   effectiveness   of  the  small  business   issuer's
            disclosure  controls and procedures and presented in this report our
            conclusions about the  effectiveness of the disclosure  controls and
            procedures, as of the end of the period covered by this report based
            on such evaluation; and

      (c)   Disclosed in this report any change in the small  business  issuer's
            internal  control over financial  reporting that occurred during the
            small  business  issuer's  most  recent  fiscal  quarter  (the small
            business  issuer's fourth fiscal quarter in the case of an quarterly
            report) that has  materially  affected,  or is reasonably  likely to
            materially affect, the small business issuer's internal control over
            financial reporting; and

5.    The  small  business  issuer's  other  certifying  officer(s)  and I  have
      disclosed,  based on our most recent  evaluation of internal  control over
      financial reporting, to the small business issuer's auditors and the audit
      committee of the small  business  issuer's  board of directors (or persons
      performing the equivalent functions):

      (a)   All significant  deficiencies and material  weaknesses in the design
            or operation of internal control over financial  reporting which are
            reasonably  likely to adversely  affect the small business  issuer's
            ability  to  record,   process,   summarize  and  report   financial
            information; and

      (b)   Any fraud,  whether or not  material,  that  involves  management or
            other  employees who have a significant  role in the small  business
            issuer's internal control over financial reporting.

Date:  August 12, 2005

                                    /s/Martha L. Long
                                    Martha L. Long
                                    Senior   Vice   President   of  Fox  Capital
                                    Management  Corporation,  equivalent  of the
                                    chief executive officer of the Partnership


<PAGE>



Exhibit 31.2


                                  CERTIFICATION


I, Stephen B. Waters, certify that:


1.    I have reviewed this quarterly report on Form 10-QSB of Century Properties
      Income Fund XXIII;

2.    Based on my knowledge,  this report does not contain any untrue  statement
      of a material fact or omit to state a material fact  necessary to make the
      statements made, in light of the circumstances under which such statements
      were made,  not  misleading  with  respect  to the period  covered by this
      report;

3.    Based on my  knowledge,  the  financial  statements,  and other  financial
      information  included  in this  report,  fairly  present  in all  material
      respects the financial condition,  results of operations and cash flows of
      the small  business  issuer as of, and for, the periods  presented in this
      report;

4.    The  small  business  issuer's  other  certifying  officer(s)  and  I  are
      responsible  for  establishing  and  maintaining  disclosure  controls and
      procedures (as defined in Exchange Act Rules  13a-15(e) and 15d-15(e)) for
      the small business issuer and have:

      (a)   Designed such  disclosure  controls and  procedures,  or caused such
            disclosure   controls  and  procedures  to  be  designed  under  our
            supervision,  to ensure that  material  information  relating to the
            small business issuer, including its consolidated  subsidiaries,  is
            made  known to us by  others  within  those  entities,  particularly
            during the period in which this report is being prepared;

      (b)   Evaluated  the   effectiveness   of  the  small  business   issuer's
            disclosure  controls and procedures and presented in this report our
            conclusions about the  effectiveness of the disclosure  controls and
            procedures, as of the end of the period covered by this report based
            on such evaluation; and

      (c)   Disclosed in this report any change in the small  business  issuer's
            internal  control over financial  reporting that occurred during the
            small  business  issuer's  most  recent  fiscal  quarter  (the small
            business  issuer's fourth fiscal quarter in the case of an quarterly
            report) that has  materially  affected,  or is reasonably  likely to
            materially affect, the small business issuer's internal control over
            financial reporting; and

5.    The  small  business  issuer's  other  certifying  officer(s)  and I  have
      disclosed,  based on our most recent  evaluation of internal  control over
      financial reporting, to the small business issuer's auditors and the audit
      committee of the small  business  issuer's  board of directors (or persons
      performing the equivalent functions):

      (a)   All significant  deficiencies and material  weaknesses in the design
            or operation of internal control over financial  reporting which are
            reasonably  likely to adversely  affect the small business  issuer's
            ability  to  record,   process,   summarize  and  report   financial
            information; and

      (b)   Any fraud,  whether or not  material,  that  involves  management or
            other  employees who have a significant  role in the small  business
            issuer's internal control over financial reporting.

Date:  August 12, 2005

                                    /s/Stephen B. Waters
                                    Stephen B. Waters
                                    Vice  President of Fox Capital  Management
                                    Corporation,   equivalent   of  the  chief
                                    financial officer of the Partnership


<PAGE>



Exhibit 32.1


                          Certification of CEO and CFO
                       Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                Section 906 of the Sarbanes-Oxley Act of 2002



In  connection  with the Quarterly  Report on Form 10-QSB of Century  Properties
Income Fund XXIII (the  "Partnership"),  for the quarterly period ended June 30,
2005 as filed with the  Securities  and Exchange  Commission  on the date hereof
(the "Report"), Martha L. Long, as the equivalent of the Chief Executive Officer
of the  Partnership,  and  Stephen B.  Waters,  as the  equivalent  of the Chief
Financial  Officer of the  Partnership,  each hereby  certifies,  pursuant to 18
U.S.C.  Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley
Act of 2002, that, to the best of his knowledge:

      (1)   The Report fully complies with the  requirements of Section 13(a) or
            15(d) of the Securities Exchange Act of 1934; and

      (2)   The  information  contained in the Report  fairly  presents,  in all
            material respects, the financial condition and results of operations
            of the Partnership.


                                           /s/Martha L. Long
                                    Name:  Martha L. Long
                                    Date:  August 12, 2005


                                           /s/Stephen B. Waters
                                    Name:  Stephen B. Waters
                                    Date:  August 12, 2005


This  certification is furnished with this Report pursuant to Section 906 of the
Sarbanes-Oxley  Act of 2002 and shall not be deemed filed by the Partnership for
purposes of Section 18 of the Securities Exchange Act of 1934, as amended.