Example 1. Corporation X files an income tax return on March 15, 1955, for the calendar year 1954 disclosing a tax liability of $1,000 and elects to pay the tax in installments. Subsequent to payment of the final installment, the correct tax liability is determined to be $900.
Tax liability
Assessed | $1,000 |
Correct liability | 900 |
Overassessment | 100 |
Record of payments | |
Mar. 15, 1955 | $500 |
June 15, 1955 | 500 |
Since the correct liability in this case is $900, the payment of $500 made on March 15, 1955, and $400 of the payment made on June 15, 1955, are applied in satisfaction of the tax liability. The balance of the payment made on June 15, 1955 ($100) constitutes the amount of the overpayment, and the date on which such payment was made would be the date of the overpayment from which interest would be computed.
Example 2. Corporation Y files an income tax return for the calendar year 1954 on March 15, 1955, disclosing a tax liability of $50,000, and elects to pay the tax in installments. On October 15, 1956, a deficiency in the amount of $10,000 is assessed and is paid in equal amounts on November 15 and November 26, 1956. On April 15, 1957, it is determined that the correct tax liability of the taxpayer for 1954 is only $35,000.
Tax liability
Original assessment | $50,000 |
Deficiency assessment | 10,000 |
Total assessed | 60,000 |
Correct liability | 35,000 |
Overassessment | 25,000 |
Record of payments | |
Mar. 15, 1955 | $25,000 |
June 15, 1955 | 25,000 |
Nov. 15, 1956 | 5,000 |
Nov. 26, 1956 | 5,000 |
Since the correct liability in this case is $35,000, the entire payment of $25,000 made on March 15, 1955, and $10,000 of the payment made on June 15, 1955, are applied in satisfaction of the tax liability. The balance of the payment made on June 15, 1955 ($15,000), plus the amounts paid on November 15 ($5,000), and November 26, 1956 ($5,000), constitute the amount of the overpayment. The dates of the overpayments from which interest would be computed are as follows:
Date | Amount of overpayment |
June 15, 1955 | $15,000 |
Nov. 15, 1956 | 5,000 |
Nov. 26, 1956 | 5,000 |
The amount of any interest paid with respect to the deficiency of $10,000 is also an overpayment.
However, in the case of any overpayment of tax by an individual (other than an estate or trust and other than a nonresident alien individual) for a taxable year beginning in 1974, "60 days" shall be substituted for "45 days" each place it appears in this paragraph.
Determination of Interest Rate
26 C.F.R. §301.6611-1