What Connecticut Deposit Interest Works Out To
| Deposit | 1 year | 2 years | 5 years |
|---|
| $1,000 | $5 | $10 | $25 |
| $1,500 | $7 | $15 | $37 |
| $2,500 | $12 | $25 | $61 |
| $5,000 | $25 | $49 | $123 |
Figures use simple interest at 0.49%, which is how Connecticut calculates it. They are what the statute produces, not what a landlord necessarily paid — the gap between the two is the reason the figure is worth checking.
When the Interest Is Never Paid
Deposit interest is one of the more commonly overlooked obligations in residential tenancy, partly because the amounts are small enough that neither side tracks them and partly because it is often owed annually while the deposit itself only comes up at move-out. A tenant who has never received an interest payment or an annual statement has usually not been told the obligation exists.
What tends to matter is documentation rather than argument. The lease records the deposit amount and the date it was paid. Bank records show when it cleared. The statute supplies the rate and the schedule, and the arithmetic follows from those three things. Where a landlord is required to give an annual statement naming the bank and the interest payable, the absence of that statement is itself part of the record.
How Connecticut Compares to Nearby States
Deposit interest is one of the sharpest state-line differences in residential tenancy: neighboring states frequently land on opposite sides of it.
The full picture across all 51 jurisdictions is on the deposit interest by state index.
Common Questions About Connecticut Deposit Interest
Does my landlord have to pay interest on my security deposit in Connecticut?
Yes. Connecticut requires it under Conn. Gen. Stat. § 47a-21, verified as of September 11, 2026. All residential security deposits. The rate is 0.49% for 2026. Annually on the anniversary date of the tenancy, either paid directly or credited toward the next month's rent.
How much interest is a security deposit worth in Connecticut?
At 0.49%, a $1,000 deposit earns about $5 a year and a $2,500 deposit about $12 a year, calculated as simple interest. Over a multi-year tenancy those figures add up to more than most tenants expect, which is why the annual statement matters.
When does a Connecticut landlord have to pay the interest?
Annually on the anniversary date of the tenancy, either paid directly or credited toward the next month's rent. The deposit itself is subject to a separate deadline: 21 days after the tenancy ends, or 15 days after the tenant provides a forwarding address, whichever is later.
What is unusual about the Connecticut rule?
A tenant forfeits interest for any month in which rent was more than ten days late, unless the rental agreement had already set a late charge.