| [X] | ANNUAL      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF      1934 |
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|   | For      the fiscal year ended                                                 December      31,      2007                                                               |
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| [  ] | TRANSITION      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF      1934 |
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|   | For      the transition period from                                                             to                                                                              |
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| Citicorp      Residential Mortgage Trust Series 2007-1           |
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| (Exact      name of issuing entity as specified in its  charter) |

| Citicorp      Residential Mortgage Securities, Inc.       |
|-----------------------------------------------------------|
| (Exact      name of depositor as specified in itscharter) |

| Citicorp      Trust Bank, fsb                           |
|---------------------------------------------------------|
| (Exact      name of sponsor as specified in itscharter) |

| New      York                                                                              |   | 32-0199559      and 32-0199557                                       |
|--------------------------------------------------------------------------------------------|--------|----------------------------------------------------------------------|
| (State      or Other Jurisdiction of Incorporation or Organization of Issuing      Entity) |   | (I.R.S.      Employer Identification Number of Issuing Entity)  |
| 1000      Technology Drive, O’Fallon, Missouri                                       |   | 63368-2240                                                           |
| (Address      of Principal ExecutiveOffices      of Issuing Entity)                        |   | (Zip      Code)                                                      |

|   | Registrant’s      telephone number, including area code                              (636)      261-1313                                                |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| Large      Accelerated Filer  [   ] | Accelerated      Filer [   ] | Non-Accelerated      Filer [X] |
|--------------------------------------------------------------|---------------------------------------------|--------------------------------|

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| Item      15. | Exhibits,      Financial Statement Schedules  |
|---------------|----------------------------------------------------|
|          | (a)(1)                                        | Not      applicable.  |
|          | (a)(2)                                        | Not      applicable.  |
|          | (a)(3)                                        | Exhibits  |
|          |                                               |  Exhibit      Number | Description |
|          |                                               | 4.1 | Pooling      and Servicing Agreement and related Standard Terms, both dated as of March      1, 2007, incorporated by reference from Exhibits 4.1 and 4.2,      respectively, of the Issuing Entity’s Current Report on Form 8-K filed      with the Commission on April 13, 2007.  |
|          |                                               | 10.1 | Form      of Mortgage Loan Purchase Agreement, dated March 1, 2007, incorporated by      reference from Exhibit 10.1 of the Issuing Entity’s Current Report on Form      8-K filed with the Commission on April 13, 2007.  |
|          |                                               | 31.1 | Certification      pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and relevant      rules and regulations of the Commission, dated March 28,2008.  |
|          |                                               | 33.1.1 | Management      Assessment of Compliance with Applicable Servicing Criteria, dated      February 22, 2008, of CitiMortgage, Inc.  |
|          |                                               | 33.1.2 | Management      Assertion of Compliance, dated February 29, 2008, of the Agency and Trust      division of Citibank, N.A.  |
|          |                                               | 33.1.3 | Management      Assessment of Compliance with Applicable Servicing Criteria, dated      February 22, 2008, of Citibank, N.A.  |
|          |                                               | 34.1.1 | Report      of Independent Registered Public Accounting Firm, dated February 22, 2008,      of KPMG LLP, relating to Exhibit 33.1.1.  |
|          |                                               | 34.1.2 | Report      of Independent Registered Public Accounting Firm, dated February 29, 2008,      of KPMG LLP, relating to Exhibit 33.1.2.  |
|          |                                               | 34.1.3 | Report      of Independent Registered Public Accounting Firm, dated February 22, 2008,      of KPMG LLP, relating to Exhibit 33.1.3.  |
|          |                                               | 35.1 | Servicer      Compliance Statement of CitiMortgage, Inc., dated February 22,      2008.  |

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| Exhibit      Number | Description                                                                                                                                                                                                                                                                                    |
|---------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 4.1                 | Pooling      and Servicing Agreement and related Standard Terms, both dated as of March      1, 2007, incorporated by reference from Exhibits 4.1 and 4.2,      respectively, of the Issuing Entity’s Current Report on Form 8-K filed      with the Commission on April 13, 2007.  |
| 10.1                | Form      of Mortgage Loan Purchase Agreement, dated March 1, 2007, incorporated by      reference from Exhibit 10.1 of the Issuing Entity’s Current Report on Form      8-K filed with the Commission on April 13, 2007.                                                           |
| 31.1                | Certification      pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and relevant      rules and regulations of the Commission, dated March 28,2008.                                                                                                                              |
| 33.1.1              | Management      Assessment of Compliance with Applicable Servicing Criteria, dated      February 22, 2008, of CitiMortgage, Inc.                                                                                                                                                          |
| 33.1.2              | Management      Assertion of Compliance, dated February 29, 2008, of the Agency and Trust      division of Citibank, N.A.                                                                                                                                                                 |
| 33.1.3              | Management      Assessment of Compliance with Applicable Servicing Criteria, dated      February 22, 2008, of Citibank, N.A.                                                                                                                                                              |
| 34.1.1              | Report      of Independent Registered Public Accounting Firm, dated February 22, 2008,      of KPMG LLP, relating to Exhibit 33.1.1.                                                                                                                                                      |
| 34.1.2              | Report      of Independent Registered Public Accounting Firm, dated February 29, 2008,      of KPMG LLP, relating to Exhibit 33.1.2.                                                                                                                                                      |
| 34.1.3              | Report      of Independent Registered Public Accounting Firm, dated February 22, 2008,      of KPMG LLP, relating to Exhibit 33.1.3.                                                                                                                                                      |
| 35.1                | Servicer      Compliance Statement of CitiMortgage, Inc., dated February 22,      2008.                                                                                                                                                                                                   |

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