Deposit Index and Interest Rates

Pursuant to Connecticut General Statutes § 36a-26, the Commissioner has determined the deposit index for the calendar year 2025 to be 0.52%.

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Interest Rates for Calendar Year 2025

Account

Statutory Reference

Interest Rate

Rental Security Deposits

Interest Calculation Table

47a-21(i) 0.52%
Claims for property, funds, or money delivered to the State Treasurer 3-70a(e) 0.52%
Mortgage escrow accounts
49-2a
(section requires that the interest rate be not less than the deposit index, rounded to the nearest one-tenth of one percentage point)
0.5%
Public service company, certified telecommunications provider and electric supplier customer security deposits 16-262j(c)
(section requires that the interest rate be not less than the higher of the deposit index, rounded to the nearest one-tenth of one percentage point, or 1.5%)
1.5%
 
Previous Interest Rates 

Previous Interest Rates for rental security deposit and claims for property, funds, or money delivered to the State Treasurer; public service company, certified telecommunications provider and electric supplier customer security deposits; and mortgage escrow accounts.
 

Previous Deposit Indexes

The deposit index for calendar year (CY) 2024 is 0.55%; CY 2023 is 0.27%; CY 2022 is 0.06%; for CY 2021 is 0.08%; for CY 2020 is 0.15%; for CY 2019 is 0.15%; for CY 2018 is 0.09%; for CY 2017 is 0.08%; for CY 2016 is 0.08%; for CY 2015 is 0.08%; for CY 2014 is 0.09%; for CY 2013 is 0.11%; for CY 2012 is 0.16%; for CY 2011 is 0.28%; for CY 2010 is 0.34%; for CY 2009 is 0.60%; for CY 2008 is 0.94%; for CY 2007 is 0.94%; for CY 2006 is 0.76%; for CY 2005 is 0.53%; for CY 2004 is 0.55%.