Document:

<PAGE>

                                                                EXHIBIT 10.81(f)

        THIS AMENDMENT NO. 6, dated as of February 24, 2006 (the "Amendment"),
to the Master Repurchase Agreement, dated November 12, 2004, as heretofore
amended (as so amended, the "Repurchase Agreement"), is by and among New Century
Mortgage Corporation, NC Capital Corporation, NC Asset Holding, L.P. (as
successor to NC Residual II Corporation), and New Century Credit Corporation,
each as a seller (each, a "Seller" and, collectively, the "Sellers") and
Barclays Bank PLC (the "Buyer").

                               W I T N E S S E T H

        WHEREAS, each Seller and the Buyer desires to amend the Repurchase
Agreement to extend the maturity date to March 8, 2006.

        NOW, THEREFORE, the parties hereto agree as follows:

        Section 1. Defined Terms.

        For purposes of this Amendment, unless the context clearly requires
otherwise, all capitalized terms which are used but not otherwise defined herein
shall have the respective meanings assigned to such terms in the Repurchase
Agreement.

        Section 2. Amendment.

        (1) Section 27 is hereby amended by deleting clause (i) of subparagraph
(a) in its entirety and replacing it with the following: "(i) March 8, 2006".

        Section 3. Effect of Amendment.

        Upon execution of this Amendment, the Repurchase Agreement shall be, and
be deemed to be, modified and amended in accordance herewith, and the respective
rights, limitations, obligations, duties, liabilities and immunities of the
Sellers and the Buyer shall hereafter be determined, exercised and enforced
subject in all respects to such modifications and amendments, and all the terms
and conditions of this Amendment shall be deemed to be part of the terms and
conditions of the Repurchase Agreement for any and all purposes. As modified and
expressly amended by this Amendment, the Repurchase Agreement is in all respects
ratified and confirmed, and all the terms, provisions and conditions thereof
shall be and remain in full force and effect.

        Section 4. Binding Effect.

        This Amendment shall be binding and inure to the benefit of the parties
hereto and their respective successors and assigns, except that neither any
Seller nor the Guarantor may assign or

                                       1
<PAGE>

transfer any of its rights or obligations
under this Agreement or any other Program Document without the prior written
consent of Buyer.

        Section 5. Binding Effect; Governing Law.

        THIS AMENDMENT SHALL BE CONSTRUED IN ACCORDANCE WITH, AND GOVERNED BY,
THE LAW OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO THE CONFLICT OF LAWS
PRINCIPLES THEREOF (EXCEPT FOR SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK
GENERAL OBLIGATIONS LAW).

        Section 6. Severability of Provisions.

        If any provision of this Amendment or the Program Documents is declared
invalid by any court of competent jurisdiction, such invalidity shall not affect
any other provision of the Amendment or the Program Documents, and this
Amendment and each Program Document shall be enforced to the fullest extent
permitted by law.

        Section 7. Section Headings.

        The section headings herein are for convenience of reference only, and
shall not limit or otherwise affect the meaning hereof.

        Section 8. Counterparts.

        This Amendment may be executed in several counterparts, each of which
shall be an original and all of which shall constitute but one and the same
instrument.

                            [signature pages follow]

                                       2
<PAGE>

        IN WITNESS WHEREOF, the Sellers and the Buyer have caused their names to
be signed hereto by their respective officers thereunto duly authorized as of
the day and year first above written.

                                        NC CAPITAL CORPORATION, as Seller

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: President

                                        NEW CENTURY MORTGAGE CORPORATION, as
                                        Seller

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: Executive Vice President

Pursuant to Section 29 of the           NC ASSET HOLDING, L.P. (as successor to
Repurchase Agreement, New Century       NC RESIDUAL II CORPORATION), as Seller
Financial Corp, as Guarantor,
hereby Consents to the Amendment
contemplated herein
                                        By:  NC Deltex, LLC, its general partner

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: Executive Vice President

By: /s/ Kevin Cloyd                     NEW CENTURY CREDIT CORPORATION, as
    -------------------------------      Seller
      Name: Kevin Cloyd
      Title: Executive Vice President
                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
By: /s/ Robert K. Cole                         Name: Kevin Cloyd
    -------------------------------            Title: President
      Name: Robert K. Cole
      Title: Chief Executive Officer

                                        BARCLAYS BANK PLC, as Buyer and Agent,
                                        as applicable

                                        By:  /s/ Joseph O'Doherty
                                             -----------------------------------
                                                Name: Joseph O'Doherty
                                                Title: Director

                                       3<PAGE>

                                                                EXHIBIT 10.81(g)

        THIS AMENDMENT NO. 7, dated as of March 7, 2006 (the "Amendment"), to
the Master Repurchase Agreement, dated November 12, 2004, as heretofore amended
(as so amended, the "Repurchase Agreement"), is by and among New Century
Mortgage Corporation, NC Capital Corporation, NC Asset Holding, L.P. (as
successor to NC Residual II Corporation), and New Century Credit Corporation,
each as a seller (each, a "Seller" and, collectively, the "Sellers") and
Barclays Bank PLC (the "Buyer").

                               W I T N E S S E T H

        WHEREAS, each Seller and the Buyer desires to amend the Repurchase
Agreement to extend the maturity date to March 28, 2006.

        NOW, THEREFORE, the parties hereto agree as follows:

        Section 1. Defined Terms.

        For purposes of this Amendment, unless the context clearly requires
otherwise, all capitalized terms which are used but not otherwise defined herein
shall have the respective meanings assigned to such terms in the Repurchase
Agreement.

        Section 2. Amendment.

        (1) Section 27 is hereby amended by deleting clause (i) of subparagraph
(a) in its entirety and replacing it with the following: "(i) March 28, 2006".

        Section 3. Effect of Amendment.

        Upon execution of this Amendment, the Repurchase Agreement shall be, and
be deemed to be, modified and amended in accordance herewith, and the respective
rights, limitations, obligations, duties, liabilities and immunities of the
Sellers and the Buyer shall hereafter be determined, exercised and enforced
subject in all respects to such modifications and amendments, and all the terms
and conditions of this Amendment shall be deemed to be part of the terms and
conditions of the Repurchase Agreement for any and all purposes. As modified and
expressly amended by this Amendment, the Repurchase Agreement is in all respects
ratified and confirmed, and all the terms, provisions and conditions thereof
shall be and remain in full force and effect.

        Section 4. Binding Effect.

        This Amendment shall be binding and inure to the benefit of the parties
hereto and their respective successors and assigns, except that neither any
Seller nor the Guarantor may assign or transfer any of its rights or obligations
under this Agreement or any other Program Document without the prior written
consent of Buyer.

                                       1
<PAGE>

        Section 5. Binding Effect; Governing Law.

        THIS AMENDMENT SHALL BE CONSTRUED IN ACCORDANCE WITH, AND GOVERNED BY,
THE LAW OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO THE CONFLICT OF LAWS
PRINCIPLES THEREOF (EXCEPT FOR SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK
GENERAL OBLIGATIONS LAW).

        Section 6. Severability of Provisions.

        If any provision of this Amendment or the Program Documents is declared
invalid by any court of competent jurisdiction, such invalidity shall not affect
any other provision of the Amendment or the Program Documents, and this
Amendment and each Program Document shall be enforced to the fullest extent
permitted by law.

        Section 7. Section Headings.

        The section headings herein are for convenience of reference only, and
shall not limit or otherwise affect the meaning hereof.

        Section 8. Counterparts.

        This Amendment may be executed in several counterparts, each of which
shall be an original and all of which shall constitute but one and the same
instrument.

                            [signature pages follow]

                                       2
<PAGE>

        IN WITNESS WHEREOF, the Sellers and the Buyer have caused their names to
be signed hereto by their respective officers thereunto duly authorized as of
the day and year first above written.

                                        NC CAPITAL CORPORATION, as Seller

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: President

                                        NEW CENTURY MORTGAGE CORPORATION, as
                                        Seller

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: Executive Vice President

Pursuant to Section 29 of the           NC ASSET HOLDING, L.P. (as successor to
Repurchase Agreement, New               NC RESIDUAL II CORPORATION), as Seller
Century Financial Corp, as
Guarantor, hereby Consents to
the Amendment contemplated herein
                                        By:  NC Deltex, LLC, its general partner

                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
                                                Name: Kevin Cloyd
                                                Title: Executive Vice President

By: /s/ Kevin Cloyd                     NEW CENTURY CREDIT CORPORATION, as
    -------------------------------     Seller
       Name: Kevin Cloyd
       Title: Executive Vice President
                                        By:  /s/ Kevin Cloyd
                                             -----------------------------------
By: /s/ Brad A. Morrice                        Name: Kevin Cloyd
    -------------------------------            Title: President
       Name: Brad A. Morrice
       Title: President and COO

                                        BARCLAYS BANK PLC, as Buyer and Agent,
                                        as applicable

                                        By:  /s/ Joseph O'Doherty
                                             -----------------------------------
                                                Name: Joseph O'Doherty
                                                Title: Director

                                       3

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