This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.

Interest in Massachusetts

In Massachusetts, the annual interest rate on a money judgment is set by statute at 12%. This rate is established under Mass. Gen. Laws ch. 231 § 6B and § 6C, and applies from the date the underlying cause of action arose until the judgment is satisfied. The statute provides that interest runs automatically on the judgment amount, and the court may also award prejudgment interest under § 6C on tort claims. The official source at malegislature.gov details how the interest is calculated and any applicable exceptions. A worked example below illustrates the calculation using this fixed rate. To estimate interest on a specific judgment, use the DocketMath calculator.

Interest calculation example

For a Massachusetts this interest calculation, use the verified rate from the current rule packet: 12%. The verified packet cites Mass. Gen. Laws ch. 231 § 6B, § 6C; ch. 235 § 8 (https://malegislature.gov/Laws/GeneralLaws/PartIII/TitleII/Chapter231/Section6c).

Example inputs:

• Principal: $10,000
• Days in calculation period: 365

Calculation:

• Convert the rate to a decimal: 12% = 0.12
• Multiply principal by the rate and the day fraction.
• Example interest: $1,200.00

This example is generated from verified packet facts. Confirm compounding, judgment date, and case-specific accrual before relying on the amount.

Interest calculation example

For a Massachusetts this interest calculation, use the verified rate from the current rule packet: 12%. The verified packet cites Mass. Gen. Laws ch. 231 § 6B, § 6C; ch. 235 § 8 (https://malegislature.gov/Laws/GeneralLaws/PartIII/TitleII/Chapter231/Section6c).

Example inputs:

• Principal: $10,000
• Days in calculation period: 365

Calculation:

• Convert the rate to a decimal: 12% = 0.12
• Multiply principal by the rate and the day fraction.
• Example interest: $1,200.00

This example is generated from verified packet facts. Confirm compounding, judgment date, and case-specific accrual before relying on the amount.

Estimate your own result: every situation has exceptions that can change the outcome. Use the interest calculator to estimate your specific figure.

This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.