Reference: the security deposit rule in each state and covered city. To settle a deposit, use the free Deposit settlement tool.

Reference

Security deposit rules in Connecticut

Connecticut: return the deposit within 21 calendar days of the end of the tenancy. 15 calendar days after receipt of the tenant's forwarding address if A written forwarding address is received; 15 days after it, if that is later (If the written forwarding address arrives so that address + 15 days is later than termination + 21 days, the later date governs). Interest: yes. Penalty if the refund or statement is late: 2x the deposit. (Conn. Gen. Stat. 47a-21)

The rule in plain words

Return by: 21 calendar days after the end of the tenancy (needs a forwarding address).
Deductions allowed: unpaid rent, unpaid utilities, damage beyond wear. Normal wear and tear never. Depreciation: none.
Interest: Yes, 0.49%.
Penalty: 2x the deposit if the refund or statement is late.
Deposit cap: 2 month(s) of rent.

The rule text

Not later than twenty-one days after termination of a tenancy or fifteen days after receiving written notification of such tenant's forwarding address, whichever is later, each landlord other than a rent receiver shall deliver to the tenant or former tenant at such forwarding address either (A) the full amount of the security deposit paid by such tenant plus accrued interest ...

Conn. Gen. Stat. 47a-21(d)(2). Source: Connecticut General Statutes 47a-21 Security deposits, read 2026-10-09.

Research notes (2)

How we sourced this rule: where the text was read and what we could not check.

Interest is year-segmented: a single rate_value is only right for tenancies within 2026; the DOB's Excel interest calculator lists each year's rate.
P.A. 23-207 secs. 38-39 amended 47a-21; content and effective date not checked.

Worked example

A $2,000.00 deposit; the tenant moved in on June 1, 2023 and out on September 30, 2026. Intended deductions: $300.00 unpaid rent, $150.00 cleaning and a $1,200.00 carpet that was 5 years old.

Return by: October 21, 2026
21 calendar days after the end of the tenancy.
Allowed deductions: $1,500.00
Of $1,650.00 claimed.
Refund due: $531.90
Interest $31.90.

The draft statement for this example

DRAFT ITEMIZED STATEMENT OF SECURITY DEPOSIT
Rule: Conn. Gen. Stat. 47a-21 (Connecticut)
Move-out date: September 30, 2026

Security deposit held                            $2,000.00
Interest credited                                   $31.90
Deduction: Unpaid rent                            -$300.00
Deduction: Carpet                               -$1,200.00
Total deductions                                -$1,500.00
Refund due to tenant                               $531.90
Return by                                   October 21, 2026

Notes:
- Itemized under Conn. Gen. Stat. 47a-21.

Settle a deposit in Connecticut

required

Where and how much

The state sets the rules; a covered city adds its own.

StateCityAdds the city's ordinance where we cover one.Deposit heldMonthly rentChecks the deposit cap.Units in the buildingInterest depends on it in IL, NY.

Dates

The dates start the clock.

Tenant moved outTenancy startedFor interest and item ages.Lease endedIf not the move-out day.Forwarding address receivedStarts or holds the clock in CT, IA, MN, RI, SD, TX, WY.Tenant's written demand receivedStarts the clock in AZ, KS, MD, MS, OK, SC, UT.New tenant moved inCan start the clock in WI, WV.Notice of claim sentFlorida: the day you sent the notice of your claimReturn period in the lease (days)The lease may set it in CO, ID, ME.

The tenant gave the notice the statute requiresChanges the deadline in AK.Repairs exceed the deposit and need a contractorCan extend the deadline in VA, WV.

Check as of another date

Check as ofDefaults to today. Use it to see where a past or future date stands.

Deductions

What you intend to keep; leave it empty to return everything. An item's age depreciates carpet, paint, blinds and appliances.

Deduction 1

CategoryAmountItem age or install dateNormal wear and tearOrdinary aging: never deductible.

Up to 9 lines.

Documentation

Some states require receipts or dated photos before a deduction stands.

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Computes and cites the published rule; it is not legal advice. You sign the statement: check the statute, your lease and any local ordinance first. Read the disclaimer.

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