Judgment Interest Calculator

Enter your judgment amount, annual interest rate, and years outstanding to calculate total interest owed, daily accrual, and a full period-by-period schedule.

Created by Luis GonzalezLast updated: May 9, 2026

How to Use This Calculator

1
Enter Judgment Amount
Input the principal dollar amount awarded by the court in the judgment. This is the base amount on which interest accrues.
2
Input Annual Interest Rate
Enter the annual post-judgment interest rate. This rate is typically set by statute (e.g., state law) or specified in the court order.
3
Specify Years Outstanding
Enter the number of years the judgment has been outstanding, including decimal values for partial years (e.g., 2.5 for two and a half years).
4
Review Interest and Total Owed
The calculator will display the total amount owed, the accrued judgment interest, and daily/monthly accrual rates, along with a period-by-period breakdown.

Example Calculation

A plaintiff was awarded $180,000, and the judgment has been outstanding for 2.5 years at a statutory annual interest rate of 6%.

Judgment Amount

$180,000

Annual Interest Rate

6 %

Years Outstanding

2.5 years

Results

$207,000.00

Tips

Verify Statutory Interest Rates

Post-judgment interest rates are often set by state or federal law and can change annually. Always verify the applicable rate for your jurisdiction and the specific year the judgment was entered or is being calculated.

Consider Compounding Frequency

While many jurisdictions use simple interest for judgments, some may allow for compound interest. Confirm the compounding rules in your jurisdiction, as compounding significantly increases the total interest owed over time.

Factor in Payment History

If partial payments have been made, ensure they are correctly applied to the outstanding principal and accrued interest. Interest typically accrues only on the remaining principal balance.

Calculating Post-Judgment Interest and Total Amounts Owed

The Judgment Interest Calculator is an essential tool for legal professionals and individuals managing outstanding legal judgments in 2025. By providing the principal judgment amount, the annual interest rate, and the years outstanding, this calculator determines the total amount owed, including accrued post-judgment interest. For example, a $180,000 judgment with a 6% annual interest rate outstanding for 2.5 years will accumulate $27,000 in interest, bringing the total owed to $207,000. This precise calculation is critical for accurate financial reporting, settlement negotiations, and enforcing legal obligations.

Understanding Post-Judgment Interest in Legal Cases

Post-judgment interest serves a critical role in the legal system, ensuring that judgment creditors are compensated for the time value of their money and incentivizing debtors to promptly satisfy their obligations. This interest begins to accrue from the date a court judgment is officially entered until it is fully paid. The annual interest rate is typically set by state or federal statute, not by the court's discretion, and can vary significantly. For instance, while federal judgments use a rate tied to the 1-year Treasury constant maturity yield (around 4-5% in late 2024), state rates can range from a low of 0% in some specific cases to as high as 10% or more in certain jurisdictions.

The Simple Interest Formula for Judgment Accrual

This calculator uses the standard simple interest formula to determine the amount of post-judgment interest accrued over time. Simple interest is calculated solely on the original principal amount of the judgment.

judgment interest = judgment amount × annual interest rate × years outstanding
total owed = judgment amount + judgment interest

Here, the judgment amount is the original principal, the annual interest rate is expressed as a decimal (e.g., 6% = 0.06), and years outstanding can include decimal values for partial years. This straightforward calculation yields both the total interest and the comprehensive Total Owed.

💡 For assessing other forms of legal damages, our Trade Secret Misappropriation Damages Calculator can help quantify losses in intellectual property cases.

Determining Total Owed for a $180,000 Judgment

Consider a plaintiff who was awarded a judgment of $180,000. The statutory annual interest rate is 6%, and the judgment has been outstanding for 2.5 years.

Judgment Amount: $180,000
Annual Interest Rate: 6% (0.06)
Years Outstanding: 2.5 years

First, calculate the judgment interest: $180,000 × 0.06 × 2.5 = $27,000. Then, add this interest to the original judgment amount to find the total owed: $180,000 + $27,000 = $207,000. Thus, the Total Owed is $207,000.00. The calculator also indicates a daily accrual of approximately $29.59 and a monthly accrual of $887.67.

💡 To calculate back pay and other forms of compensation in employment disputes, refer to our Wrongful Termination Back Pay Calculator.

Understanding Post-Judgment Interest in Legal Cases

How Legal Professionals Apply Judgment Interest

Legal professionals, including attorneys, paralegals, and legal finance specialists, use judgment interest calculations extensively throughout the litigation and enforcement process. During settlement negotiations, the potential accrual of interest is a powerful leverage point, often prompting debtors to settle sooner to avoid higher total payouts. In post-judgment enforcement, accurately calculating the total owed is fundamental for drafting writs of execution, garnishments, or liens. For example, a lawyer might use this calculation to demonstrate to a court why a debtor's proposed payment plan is insufficient or to challenge a debtor's claim of full satisfaction. Furthermore, in appeals, understanding the impact of continued interest accrual on the total liability can influence strategic decisions regarding bond requirements and the overall cost of litigation.

Frequently Asked Questions

What is judgment interest and why is it applied?

Judgment interest is a statutory interest rate applied to a monetary judgment from the date it is entered until it is fully paid. It is applied to compensate the judgment creditor for the time value of money, meaning the loss of use of their funds during the period the judgment remains unpaid. It also incentivizes the judgment debtor to pay promptly, preventing undue delay in satisfying court-ordered obligations.

How is post-judgment interest calculated?

Post-judgment interest is typically calculated as simple interest on the outstanding principal amount of the judgment. The formula is: Principal Amount × Annual Interest Rate × Time (in years). For example, a $100,000 judgment at 5% annual interest for 2 years would accrue $10,000 in interest. Some jurisdictions may allow for compound interest, but simple interest is more common.

What are typical post-judgment interest rates?

Typical post-judgment interest rates vary widely by jurisdiction. Federal judgments in the U.S. use the weekly average 1-year Treasury constant maturity yield, which fluctuates but has been around 4-5% in 2024. State rates can range from as low as 0% (e.g., some specific tax judgments) to over 10% (e.g., New York's 9%). It is crucial to check the specific state statute where the judgment was entered.

Does pre-judgment interest differ from post-judgment interest?

Yes, pre-judgment interest differs from post-judgment interest in that it accrues from the date the cause of action arose (or damages were incurred) up to the date the judgment is entered. It compensates the plaintiff for losses incurred before the court's decision. Post-judgment interest, conversely, accrues only after the judgment is officially recorded and continues until payment, serving to enforce the judgment.