How to use the supersedeas bond calculator
Filing an appeal does not stop the winner from collecting. To pause enforcement while the appeal runs, Fed. R. Civ. P. 62(b) lets a party obtain a stay by posting a bond or other security, and the stay takes effect when the court approves it. The instrument is usually called a supersedeas bond and is written by a surety company.
The federal rule does not fix a percentage. Many district local rules and state practices set the security at roughly 100 to 125 percent of the judgment so that the appellee is protected for the judgment plus the interest and costs that accrue during the appeal. Post-judgment interest on a federal judgment runs under 28 U.S.C. 1961 at the weekly average one-year constant maturity Treasury yield, compounded annually, so a long appeal adds real money to the exposure.
Check the local rule of the deciding court and the surety quote before budgeting, because percentages, collateral demands and premium rates all vary. Figures reflect federal practice as of September 2026. This calculator is for reference only and is not legal advice. Consult a licensed attorney about your specific situation.
Frequently asked questions
Rule 62(b) allows a bond or other security, and courts have discretion over the form and amount. Some courts accept alternative security in appropriate cases.
The extra margin covers post-judgment interest under 28 U.S.C. 1961 and costs that keep accruing while the appeal is pending.