Federal post-judgment interest calculator
Computes interest on a U.S. federal court money judgment exactly as 28 U.S.C. §1961 prescribes: the H.15 weekly-average 1-year Treasury yield for the calendar week preceding your judgment date, accrued daily and compounded annually.
Estimate for reference only — courts, agencies and creditors may apply different rounding or conventions. Not legal, tax, or financial advice.
How it works
The statute sets the rate once, at judgment: the weekly-average 1-year Treasury constant maturity yield for the calendar week preceding the judgment date. That single rate then applies for the life of the judgment — computed daily (annual rate ÷ 365) and compounded each year on the judgment anniversary. The current weekly value is 3.95% (week beginning July 6, 2026); our data reaches back 105 weeks, so you can compute judgments entered up to about two years ago.
Exceptions written into §1961: certain Court of Federal Claims judgments (§2516(b)), Judgment Fund payments (31 U.S.C. §1304(b)), and internal-revenue tax cases (§1961(c)). Some districts publish their own tables — confirm against your district court's table before filing.