## Interest calculation example

For a US-MA this interest calculation, use the verified rate from the current rule packet: **3.66%**. 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: 3.66% = 0.0366
- Multiply principal by the rate and the day fraction.
- Example interest: **$366.00**

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 US-MA this interest calculation, use the verified rate from the current rule packet: **3.66%**. 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: 3.66% = 0.0366
- Multiply principal by the rate and the day fraction.
- Example interest: **$366.00**

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 US-MA this interest calculation, use the verified rate from the current rule packet: **3.66%**. 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: 3.66% = 0.0366
- Multiply principal by the rate and the day fraction.
- Example interest: **$366.00**

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 US-MA this interest calculation, use the verified rate from the current rule packet: **3.66%**. 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: 3.66% = 0.0366
- Multiply principal by the rate and the day fraction.
- Example interest: **$366.00**

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


A step-by-step DocketMath guide for interest in Massachusetts.

How to run interest in DocketMath for Massachusetts

(9) in the event that the purchase of an insurance contract or insurance annuity in connection with termination of an individual’s status as a participant covered under a pension plan with respect to all or any portion of the participant’ s pension benefit under such plan constitutes a violation of part 4 of this title [1] or the terms of the plan, by the Secretary, by any individual who was a participant or beneficiary at the time of the alleged violation, or by a fiduciary, to obtain appropriate relief, including the posting of security if necessary, to assure receipt by the participant or beneficiary of the amounts provided or to be provided by such insurance contract or annuity, plus reasonable prejudgment interest on such amounts;

(1) Any administrator (A) who fails to meet the requirements of paragraph (1) or (4) of section 1166 2 of this title, section 1021(e)(1) of this title , section 1021(f) of this title ,, [3] section 1025(a) of this title , or section 1032(a) of this title with respect to a participant or beneficiary, or (B) who fails or refuses to comply with a request for any information which such administrator is required by this subchapter to furnish to a participant or beneficiary (unless such failure or refusal results from matters reasonably beyond the control of the administrator) by mailing the material requested to the last known address of the requesting participant or beneficiary within 30 days after such request may in the court’s discretion be personally liable to such participant or beneficiary in the amount of up to $100 a day from the date of such failure or refusal, and the court may in its discretion order such other relief as it deems proper.

(c) (1) This section shall not apply in any judgment of any court with respect to any internal revenue tax case. Interest shall be allowed in such cases at the underpayment rate or overpayment rate (whichever is appropriate) established under section 6621 of the Internal Revenue Code of 1986 . (2) Except as otherwise provided in paragraph (1) of this subsection, interest shall be allowed on all final judgments against the United States in the United States Court of Appeals for the Federal circuit , [2] at the rate provided in subsection (a) and as provided in subsection (b). (3) Interest shall be allowed, computed, and paid on judgments of the United States Court of Federal Claims only as provided in paragraph (1) of this subsection or in any other provision of law.

A lender, in connection with a federally related mortgage loan, may not require the borrower or prospective borrower— (1) to deposit in any escrow account which may be established in connection with such loan for the purpose of assuring payment of taxes, insurance premiums, or other charges with respect to the property, in connection with the settlement, an aggregate sum (for such purpose) in excess of a sum that will be sufficient to pay such taxes, insurance premiums and other charges attributable to the period beginning on the last date on which each such charge would have been paid under the normal lending practice of the lender and local custom.

In any action of tort in which a verdict is rendered or a finding made for pecuniary damages for personal injuries to the plaintiff or for consequential damages, or for damage to property, there shall be added by the clerk of court to the amount of damages interest thereon at the rate of twelve per cent per annum from the date of commencement of the action even though such interest brings the amount of the verdict or finding beyond the maximum liability imposed by law.

In all actions based on contractual obligations, upon a verdict, finding or order for judgment for pecuniary damages, interest shall be added by the clerk of the court to the amount of damages, at the contract rate, if established, or at the rate of twelve per cent per annum from the date of the breach or demand. If the date of the breach or demand is not established, interest shall be added by the clerk of the court, at such contractual rate, or at the rate of twelve per cent per annum from the date of the commencement of the action, provided, however, that in all actions based on contractual obligations, upon a verdict, finding or order for judgment against the commonwealth for pecuniary damages, interest shall be added by the clerk of the court to the amount of damages, at the contract rate, if established, or at a rate calculated pursuant to the provisions of section six I from the date of the breach or demand.

When judgment is rendered upon an award of county commissioners, a committee or referees, or upon the report of an auditor or master, or upon the verdict of a jury or the finding of a justice, interest shall be computed upon the amount of the award, report, verdict or finding from the time when made to the time the judgment is entered. Every judgment for the payment of money shall bear interest from the day of its entry at the same rate per annum as provided for prejudgment interest in such award, report, verdict or finding. The warrant or execution issued on a judgment for the payment of money shall specify the day upon which judgment is entered, and shall require the collection or satisfaction thereof with interest from the day of its entry.

Interest required to be paid by the commonwealth pursuant to this section shall be calculated at a Weekly average one-year constant maturity Treasury yield, as published by the Board of Governors of the Federal Reserve System, for the calendar week preceding date of the judgment; provided, however, that such interest shall not exceed the rate of ten percent per annum. The secretary of administration and finance shall maintain a schedule of the rate described above for the distribution to all clerks of courts.

If there is no agreement or provision of law for a different rate, the interest of money shall be at the rate of six dollars on each hundred for a year, but, except as provided in sections seventy-eight, ninety, ninety-two, ninety-six and one hundred of chapter one hundred and forty, it shall be lawful to pay, reserve or contract for any rate of interest or discount. No greater rate than that before mentioned shall be recovered in a suit unless the agreement to pay it is in writing.

In any action in which a verdict is rendered or a finding made or an order for judgment made for pecuniary damages for personal injuries to the plaintiff or for consequential damages, or for damage to property, there shall be added by the clerk of the court to the amount of damages interest thereon at the rate of twelve per cent per annum from the date of commencement of the action even if such interest brings the amount of the verdict or finding beyond the maximum liability imposed by law.

(3) (a) Any security deposit received by a lessor shall be held in a separate, interest-bearing account in a bank, located within the commonwealth under such terms as will place such deposit beyond the claim of creditors of the lessor, including a foreclosing mortgagee or trustee in bankruptcy, and as will provide for its transfer to a subsequent owner of said property. A receipt shall be given to the tenant within thirty days after such deposit is received by the lessor which receipt shall indicate the name and location of the bank in which the security deposit has been deposited and the amount and account number of said deposit. Failure to comply with this paragraph shall entitle the tenant to immediate return of the security deposit.

(b) At or prior to the commencement of any tenancy, no lessor or agent of the lessor may require a tenant or prospective tenant to pay, to the lessor or to an agent of the lessor, any amount in excess of the following: (i) rent for the first full month of occupancy; and, (ii) rent for the last full month of occupancy calculated at the same rate as the first month; and, (iii) a security deposit equal to the first month's rent provided that such security deposit is deposited as required by subsection (3) and that the tenant is given the statement of condition as required by subsection (2)

(c) Any lessor of residential real property, or his agent, who accepts a security deposit from a tenant or prospective tenant shall, upon receipt of such security deposit, or within ten days after commencement of the tenancy, whichever is later, furnish to such tenant or prospective tenant a separate written statement of the present condition of the premises to be leased or rented. Such written statement shall also contain a comprehensive listing of any damage then existing in the premises, including, but not limited to, any violations of the state sanitary code or state building code.

Mass. Gen. Laws ch. 231, §§ 6B and 6C provide 12% prejudgment interest for covered tort and contract damages, except established contract rates and Commonwealth rates routed through § 6I. Mass. Gen. Laws ch. 235, § 8 provides postjudgment interest at the same annual rate as the prejudgment interest in the award, report, verdict, or finding.

For Massachusetts interest pages, use chapter 231 sections 6B, 6C, and 6I for prejudgment interest; chapter 235 section 8 for postjudgment interest; chapter 107 section 3 for the general legal rate; and chapter 186 section 15B for residential security-deposit interest.

interest in US-MA is governed by Mass. Gen. Laws ch. 231 § 6B, § 6C; ch. 235 § 8.