45 C.F.R. § 304.40
(a) Basic conditions. When a State has been reimbursed Federal funds for expenditures claimed under title IV-D, which is later determined to be unallowable for Federal financial participation, the State may make repayment of such Federal funds in installments provided:
(b) Criteria governing installment repayments.
(1) The number of quarters over which the repayment of the total unallowable expenditures will be made will be determined by the percentage the total of such repayment is of the estimated State share of the annual expenditures for the IV-D program as follows:
| Total repayment amount as percentage of State share of annual expenditures for the IV-D program | Number of quarters to make repayment |
|---|---|
| 2.5 percent or less | 1 |
| Greater than 2.5, but not greater than 5 | 2 |
| Greater than 5, but not greater than 7.5 | 3 |
| Greater than 7.5, but not greater than 10 | 4 |
| Greater than 10, but not greater than 15 | 5 |
| Greater than 15, but not greater than 20 | 6 |
| Greater than 20, but not greater than 25 | 7 |
| Greater than 25, but not greater than 30 | 8 |
| Greater than 30, but not greater than 47.5 | 9 |
| Greater than 47.5, but not greater than 65 | 10 |
| Greater than 65, but not greater than 82.5 | 11 |
| Greater than 82.5, but not greater than 100 | 12 |
The quarterly repayment amounts for each of the quarters in the repayment schedule shall not be less than the following percentages of estimated State share of the annual expenditures for the program against which the recovery is made.
| For each of the following quarters | Repayment installment may not be less than these percentages |
|---|---|
| 1 to 4 | 2.5 |
| 5 to 8 | 5.0 |
| 9 to 12 | 17.5 |
If the State chooses to repay amounts representing higher percentages during the early quarters, any corresponding reduction in required minimum percentages would be applied first to the last scheduled payment, then to the next to the last payment, and so forth as necessary.
(6) The repayment schedule may be extended beyond 12 quarterly installments if the total repayment amount exceeds 100% of the estimated State share of annual expenditures.
In these circumstances, the criteria in paragraphs (b) (1) and (2) or (3) of this section, as appropriate, shall be followed for repayment of the amount equal to 100% of the annual State share. The remaining amount of the repayment shall be in quarterly amounts not less than those for the 9th through 12th quarters.
(7) The amount of a retroactive claim to be paid a State will be offset against any amounts to be, or already being, repaid by the State in installments, under the same title of the Social Security Act. Under this provision the State may choose to:
(ii) Continue payments until the reduced amount of its debt (remaining after the offset), has been paid in full. This second option would result in a shorter payment period.
A retroactive claim for the purpose of this regulation is a claim applicable to any period ending 12 months or more prior to the beginning of the quarter in which the payment is to be made by the Service.
[42 FR 28885, June 6, 1977, as amended at 52 FR 273, Jan. 5, 1987; 64 FR 6253, Feb. 9, 1999; 68 FR 25305, May 12, 2003; 81 FR 93568, Dec. 20, 2016]