Connecticut landlord and tenant rules
Seayora publishes 10 Connecticut rules, covering contractor sales tax, notice periods, security deposits. Every one is generated from the statute it cites — the same rule Seayora's own deadline engine enforces on a live tenancy — and carries the date it was last checked.
Connecticut at a glance
| Rule | Connecticut |
|---|---|
| Do contractors charge sales tax in Connecticut? | Consumer of materials |
| Is appliance repair taxable in Connecticut? | Taxable, with the parts |
| Is contractor labor taxable in Connecticut? | Taxable — commercial only |
| How many days does a tenant get to pay late rent in Connecticut? | 3 days |
| How much notice does a landlord have to give before entering in Connecticut? | 24 hours |
| How much notice does a landlord have to give before raising the rent in Connecticut? | 30 days |
| How much notice must a landlord give to end a tenancy in Connecticut? | 30 days |
| Does a landlord have to pay interest on a security deposit in Connecticut? | Interest at the Banking Commissioner's published rate, paid annually. |
| How long does a landlord have to return a security deposit in Connecticut? | 21 days |
| How much can a landlord charge for a security deposit in Connecticut? | 2 months of rent |
Contractor sales tax in Connecticut
Do contractors charge sales tax in Connecticut?
In Connecticut a contractor is treated as the CONSUMER of the materials they build into real property. That means the contractor pays sales tax when they buy the materials, and does not add sales tax to the customer's invoice for that work — the tax is already inside the price. Source: Conn. Gen. Stat. §12-407(a)(37)(I) (services to industrial, commercial or income-producing real property are taxable).
The residential/commercial line is the whole rule in Connecticut: services to EXISTING industrial, commercial or income-producing real property are taxable, services to residential property generally are not. New construction is excluded from both. A rented residential building can be income-producing — confirm the property class before relying on the exemption.
Full answer and the checkable figures.
Is appliance repair taxable in Connecticut?
Yes. Connecticut taxes the LABOR on repairs to tangible personal property — an appliance, a boiler or a unit that never becomes part of the building — as well as the parts. This is a different question from work on the real property itself: the same technician on the same visit can be doing taxable work on an appliance and differently treated work on the structure, and the invoice has to tell them apart. Source: Conn. Gen. Stat. §12-407(a)(37)(I) (services to industrial, commercial or income-producing real property are taxable).
The residential/commercial line is the whole rule in Connecticut: services to EXISTING industrial, commercial or income-producing real property are taxable, services to residential property generally are not. New construction is excluded from both. A rented residential building can be income-producing — confirm the property class before relying on the exemption.
Full answer and the checkable figures.
Is contractor labor taxable in Connecticut?
It depends on the property. Connecticut taxes the LABOR on repair and maintenance work to COMMERCIAL or non-residential real property, but not the same work on residential property. Repair and maintenance is not the same thing as a capital improvement, which is exempt to the customer in Connecticut — the classification of the job is what decides the tax, not the wording on the invoice. Source: Conn. Gen. Stat. §12-407(a)(37)(I) (services to industrial, commercial or income-producing real property are taxable).
The residential/commercial line is the whole rule in Connecticut: services to EXISTING industrial, commercial or income-producing real property are taxable, services to residential property generally are not. New construction is excluded from both. A rented residential building can be income-producing — confirm the property class before relying on the exemption.
Full answer and the checkable figures.
Notice periods in Connecticut
How many days does a tenant get to pay late rent in Connecticut?
In Connecticut, a landlord must give a written demand and allow 3 days to pay before starting a nonpayment case. This is Conn. Gen. Stat. §§ 47a-16, 47a-23, 47a-15a.
No statute on rent-increase notice outside fair-rent-commission towns — 30 days is customary. Late rent: 9-day grace then a 3-day notice to quit.
Full answer and the checkable figures.
How much notice does a landlord have to give before entering in Connecticut?
In Connecticut, a landlord must give 24 hours notice before entering an occupied rental, other than in an emergency. This is Conn. Gen. Stat. §§ 47a-16, 47a-23, 47a-15a.
No statute on rent-increase notice outside fair-rent-commission towns — 30 days is customary. Late rent: 9-day grace then a 3-day notice to quit.
Full answer and the checkable figures.
How much notice does a landlord have to give before raising the rent in Connecticut?
In Connecticut, a landlord must give 30 days written notice before raising the rent. This is Conn. Gen. Stat. §§ 47a-16, 47a-23, 47a-15a.
No statute on rent-increase notice outside fair-rent-commission towns — 30 days is customary. Late rent: 9-day grace then a 3-day notice to quit.
Full answer and the checkable figures.
How much notice must a landlord give to end a tenancy in Connecticut?
In Connecticut, a landlord must give 30 days written notice to end a tenancy or decline to renew it. This is Conn. Gen. Stat. §§ 47a-16, 47a-23, 47a-15a.
No statute on rent-increase notice outside fair-rent-commission towns — 30 days is customary. Late rent: 9-day grace then a 3-day notice to quit.
Full answer and the checkable figures.
Security deposits in Connecticut
Does a landlord have to pay interest on a security deposit in Connecticut?
Yes. Connecticut requires a landlord to pay the tenant interest on a security deposit. Interest at the Banking Commissioner's published rate, paid annually. The deposit itself must be returned within 21 days of the end of the tenancy. This is Conn. Gen. Stat. § 47a-21.
Full answer and the checkable figures.
How long does a landlord have to return a security deposit in Connecticut?
In Connecticut, a landlord has 21 days after the tenancy ends to return the security deposit, together with an itemised statement of any deductions. 21 days from termination or 15 days from receiving a forwarding address, whichever is later. Connecticut also requires interest to be paid on the deposit: Interest at the Banking Commissioner's published rate, paid annually. This is Conn. Gen. Stat. § 47a-21.
Full answer and the checkable figures.
How much can a landlord charge for a security deposit in Connecticut?
In Connecticut, a security deposit is capped at 2 months of rent. Two months' rent; one month when the tenant is 62 or older. This is Conn. Gen. Stat. § 47a-21.
Full answer and the checkable figures.
Sources
- Conn. Gen. Stat. § 47a-21
- Conn. Gen. Stat. §12-407(a)(37)(I) (services to industrial, commercial or income-producing real property are taxable).
- Conn. Gen. Stat. §§ 47a-16, 47a-23, 47a-15a
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses these rules
Seayora computes the deadline this rule sets from the tenancy’s own dates, shows it on the lease and the deposit statement, and reminds the landlord before it falls due — so the answer above is not reference material sitting beside the product, it is the rule the product enforces.
Compare Connecticut with every other state
- Labor on an appliance repair in all 20 states
- Capital improvement in all 8 states
- Repair labor on real property in all 15 states
- How the contractor is treated in all 51 states
- Notice before entry in all 28 states
- Days to pay after the demand in all 32 states
- Notice to end a tenancy in all 33 states
- Notice before a rent increase in all 23 states
- How the interest works in all 14 states
- Maximum deposit in all 28 states
- Deadline to return the deposit in all 51 states
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