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Interest rates for security deposits for investor-owned utilities

Here, you can find security deposit interest rates for Massachusetts investor-owned utilities.

Table of Contents

Current and historical interest rates

Effective Date Interest Rate
January 1, 2023 2.99%
January 1, 2022 0.27%
January 1, 2021 0.39%
January 1, 2020 1.97%
January 1, 2019 2.53%
January 1, 2018 1.40%
January 1, 2017 0.83%
January 1, 2016 0.69%
January 1, 2015 0.46%

Pursuant to 220 CMR. 26.09(b), the rate of interest shall be the equivalent of the rate paid on two-year, United States Treasury notes for the preceding 12 months ending December 31 of any year.

All cash or cash-equivalent security deposits held for more than six months from the date of deposit shall be paid interest thereon, commencing from the date of payment to the date of refund.

Additional Resources



(617) 305-3742


Department of Public Utilities
One South Station, 5th floor
Boston, MA 02110

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