New England · CT
Connecticut Sales Tax Guide
Statewide sales and use tax with no general local sales-tax layer
What people ask about Connecticut sales tax
Does Connecticut have a statewide sales tax?
Statewide sales and use tax with no general local sales-tax layer Connecticut is geographically simpler than many states because it does not add county or city sales tax. Complexity instead comes from product definitions, special rates, filing mandates, and exemptions.
What sales tax rate and sourcing rules matter in Connecticut?
The general rate is 6.35%, with special rates for selected goods and services. Luxury items, meals, lodging, motor vehicles, and digital products can fall outside the general-rate pattern.
What Connecticut sales tax return or form is used?
The principal repository-tracked return is OS-114. Paper eligibility is taxpayer-specific; electronic filing or a waiver may control.
How are marketplace sales reported in Connecticut?
Facilitated sales generally enter gross receipts and are removed through the state's designated deduction or exclusion workflow.
What resale or exemption certificate applies in Connecticut?
The repository tracks Connecticut Sales and Use Tax Resale Certificate. Certificate validity still depends on the purchaser, seller, claimed use, dates, signatures, and any state-specific acceptance conditions.
Does Connecticut have a sales tax holiday?
Connecticut's recurring sales-tax-free week covers qualifying clothing and footwear under the statutory price threshold.
What special sales tax rates or excise layers apply in Connecticut?
No separately verified special-rate category is published in the current member-state register for this jurisdiction. Product-specific research observations remain available below.
How can prewritten software tax treatment vary in Connecticut?
The corpus contains 3 prewritten software observations and does not support one unconditional yes-or-no answer. It records 3 included in base. Representative condition-specific observations include: when transfer method: electronic; purchaser use: business: included in base at 1%; when transfer method: electronic; purchaser use: personal: included in base at 6.35%; when transfer method: physical: included in base at 6.35%. Review the full records and cited authority for the exact product identity, transaction facts, effective date, and local treatment before use.
What does the Connecticut research say about data processing?
The corpus contains one data processing observation. The research observation says the observed treatment is included in base; with special rate required; a 1% state rate; local interaction: no local rate; sourcing: standard situs. Computer and data processing services are taxable at one percent; Internet access is excluded from that taxable service. Status: Research observation — independent review required. Confirm the cited authority and transaction facts before use.
What does the Connecticut research say about prepared food?
The corpus contains one prepared food observation. The research observation says the observed treatment is included in base; with special rate required; a 7.35% state rate; local interaction: no local rate; sourcing: standard situs. Meals and certain beverages are taxed at 7.35 percent and are excluded from the food-product exemption. Status: Research observation — independent review required. Confirm the cited authority and transaction facts before use.
How Connecticut's tax system is organized
Connecticut is geographically simpler than many states because it does not add county or city sales tax. Complexity instead comes from product definitions, special rates, filing mandates, and exemptions.
Rates and sourcing
The general rate is 6.35%, with special rates for selected goods and services. Luxury items, meals, lodging, motor vehicles, and digital products can fall outside the general-rate pattern.
Tax situs is a legal determination. Mailing city, ZIP code, county proximity, and geocoding should not silently substitute for the jurisdiction rule that controls the transaction.
Product and transaction wrinkles
Product identity should be established before a rate is selected. Examples include:
- digital goods and electronically accessed software can be taxable
- meals and certain beverages use a special rate
- clothing and footwear treatment changes during the annual exemption week
These examples are not an exhaustive taxability matrix. Bundles, customer use, delivery method, exemptions, and effective dates can change the result.
Product-treatment research coverage
The underlying research inventory contains 23 Connecticut treatment records across 17 product families. The inventory includes effective-date, evidence, rate-class, local-interaction, and sourcing fields. Its breadth is not a claim that every observed treatment is active in production: unresolved or independently unreviewed records remain non-operative.
23 treatment records across 17 product families.
Examples of researched product families
- prewritten software
- vehicle
- cannabis
- lodging
- clothing
- data processing
Explore all 23 Connecticut research records
general tangible personal property
Research observation — independent review required
Most goods, digital goods, and taxable services use 6.35 percent; Connecticut imposes no additional local sales tax.
- Treatment: included in base
- Rate application: general rate lookup
- Rate class: ordinary
- State rate: 6.35%
- Local rate: 0%
- Taxable base: retail sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: standard transaction record
- Effective-window status: current authority verified start not pinned
- Runtime boundary: identity date only after window completion
- Before operational use: pin the governing statutory effective start; independent semantic review
data processing
Research observation — independent review required
Computer and data processing services are taxable at one percent; Internet access is excluded from that taxable service.
- Treatment: included in base
- Rate application: special rate required
- Rate class: reduced
- State rate: 1%
- Local rate: 0%
- Taxable base: service charge
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: ct data processing classification
- Effective-window status: current authority verified start not pinned
- Runtime boundary: special rate resolver required
- Before operational use: pin the governing statutory effective start; implement reduced-rate resolver; independent semantic review
State authority research source 1 · State authority research source 2
saas
Research observation — independent review required
Online access to computer services is listed within computer and data processing services taxed at the special rate.
- Treatment: included in base
- Rate application: special rate required
- Rate class: reduced
- State rate: 1%
- Local rate: 0%
- Taxable base: service charge
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: ct online computer service classification
- Effective-window status: current authority verified start not pinned
- Runtime boundary: special rate resolver and semantic boundary required
- Before operational use: adjudicate SaaS versus non-taxable Internet access boundary; pin effective start; independent semantic review
prewritten software
Research observation — independent review required
Electronically accessed or transferred canned software bought by a business for business use is taxed at one percent when no tangible personal property is transferred.
- Identity or conditions: transfer method: electronic; purchaser use: business
- Treatment: included in base
- Rate application: special rate required
- Rate class: reduced
- State rate: 1%
- Local rate: 0%
- Taxable base: sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: business use and electronic transfer
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: implement purchaser-use treatment fact; pin effective start; independent semantic review
State authority research source 1 · State authority research source 2
prewritten software
Research observation — independent review required
Electronically accessed or transferred canned software for personal use is taxed at 6.35 percent.
- Identity or conditions: transfer method: electronic; purchaser use: personal
- Treatment: included in base
- Rate application: general rate lookup
- Rate class: ordinary
- State rate: 6.35%
- Local rate: 0%
- Taxable base: sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: personal use and electronic transfer
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine required
- Before operational use: implement purchaser-use treatment fact; pin effective start; independent semantic review
State authority research source 1 · State authority research source 2
prewritten software
Research observation — independent review required
Canned software transferred with tangible personal property is taxed at 6.35 percent.
- Identity or conditions: transfer method: physical
- Treatment: included in base
- Rate application: general rate lookup
- Rate class: ordinary
- State rate: 6.35%
- Local rate: 0%
- Taxable base: sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: physical transfer
- Effective-window status: current authority verified start not pinned
- Runtime boundary: identity date only after window completion
- Before operational use: pin effective start; independent semantic review
State authority research source 1 · State authority research source 2
grocery
Research observation — independent review required
Food products for human consumption are exempt, excluding meals, carbonated beverages, candy, and alcoholic beverages.
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: food product identity
- Effective-window status: current authority verified start not pinned
- Runtime boundary: identity date only after window completion
- Before operational use: pin effective start; independent food-definition review
prepared food
Research observation — independent review required
Meals and certain beverages are taxed at 7.35 percent and are excluded from the food-product exemption.
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 7.35%
- Local rate: 0%
- Taxable base: meal sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: ct meal identity
- Effective-window status: current authority verified start requires pinned notice
- Runtime boundary: special rate resolver required
- Before operational use: pin the 2019 effective notice; implement special-rate resolver; independent meal-definition review
State authority research source 1 · State authority research source 2
vending food
Research observation — independent review required
Food products, including meals, sold through coin-operated vending machines are exempt.
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: coin operated vending food identity
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine required
- Before operational use: represent coin-operated sale context; pin effective start; independent review
prescription drug human
Research observation — independent review required
Prescription medicines, syringes, and needles are exempt.
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: prescription drug identity
- Effective-window status: current authority verified start not pinned
- Runtime boundary: identity date only after window completion
- Before operational use: pin effective start; independent review
nonprescription drug human
Research observation — independent review required
The official exemption page enumerates qualifying nonprescription drugs and medicines.
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: ct enumerated nonprescription medicine
- Effective-window status: current authority verified start not pinned
- Runtime boundary: semantic qualification required
- Before operational use: map the complete enumerated medicine boundary; pin effective start; independent review
menstrual product
Research observation — independent review required
Menstrual products are included in the medical-goods exemption list.
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: menstrual product identity
- Effective-window status: current authority verified start not pinned
- Runtime boundary: identity date only after window completion
- Before operational use: pin effective start; independent review
durable medical equipment
Research observation — independent review required
The official page exempts enumerated medical devices and equipment, not an unrestricted DME category.
- Identity or conditions: qualifying use: ct enumerated medical device
- Treatment: excluded from base
- Rate application: no rate
- Rate class: no rate
- State rate: 0%
- Local rate: 0%
- Taxable base: excluded if qualified
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: ct medical device qualification
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine required
- Before operational use: map enumerated devices without broadening; implement qualifying-use fact; independent review
manufacturing input
Research observation — independent review required
Manufacturing authority contains both full exemptions and a partial exemption, with CERT-100, CERT-101, CERT-108, or CERT-109 depending on the item and use.
- Identity or conditions: qualifying use: ct manufacturing statute
- Treatment: unresolved
- Rate application: special rate required
- Rate class: unresolved
- Local rate: 0%
- Taxable base: full or partial exemption depends on item and use
- Local interaction: unresolved
- Sourcing: standard situs
- Evidence required: ct manufacturing certificate
- Effective-window status: category authority verified rule extraction incomplete
- Runtime boundary: unsupported until partial exemption extracted
- Before operational use: extract exact partial taxable percentage; map item/use and certificate conditions; independent review
vehicle
Research observation — independent review required
Most motor vehicles with a sales price above $50,000 are taxed at 7.75 percent.
- Identity or conditions: minimum sale amount exclusive: 50000; purchaser status: general; sale amount scope: per item net
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 7.75%
- Local rate: 0%
- Taxable base: vehicle sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: vehicle price and purchaser status
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: implement amount and purchaser-status precedence; pin effective start; independent review
vehicle
Research observation — independent review required
The ordinary 6.35 percent rate applies below the stated luxury threshold, subject to other vehicle-specific rules.
- Identity or conditions: maximum sale amount inclusive: 50000; purchaser status: general; sale amount scope: per item net
- Treatment: included in base
- Rate application: general rate lookup
- Rate class: ordinary
- State rate: 6.35%
- Local rate: 0%
- Taxable base: vehicle sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: vehicle price and purchaser status
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine required
- Before operational use: implement amount and purchaser-status precedence; pin effective start; independent review
vehicle
Research observation — independent review required
A qualifying motor vehicle sale to a nonresident active-duty service member stationed in Connecticut is taxed at 4.5 percent when CERT-135 is provided.
- Identity or conditions: purchaser status: nonresident active duty stationed in ct; required certificate: CERT-135
- Treatment: included in base
- Rate application: special rate required
- Rate class: reduced
- State rate: 4.5%
- Local rate: 0%
- Taxable base: vehicle sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: cert-135
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine certificate and special rate resolver required
- Before operational use: implement purchaser-status and certificate validation; define precedence over price threshold; independent review
rental
Research observation — independent review required
Passenger motor vehicle rentals or leases for 30 consecutive calendar days or less are taxed at 9.35 percent.
- Identity or conditions: maximum rental days: 30; rented product: passenger motor vehicle
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 9.35%
- Local rate: 0%
- Taxable base: rental charge
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: rented product and term
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: represent rented product and duration; pin effective start; independent review
clothing
Research observation — independent review required
An article of clothing or footwear priced above $1,000 is taxed at 7.75 percent; separate sales-tax-free-week rules also exist.
- Identity or conditions: minimum sale amount exclusive: 1000; sale amount scope: per item net; tax holiday status: not applicable
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 7.75%
- Local rate: 0%
- Taxable base: per article sales price
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: article price and tax holiday status
- Effective-window status: current authority verified start and 2026 holiday change not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: implement per-article amount and tax-holiday calendar; pin effective windows; independent review
lodging
Research observation — independent review required
Hotel, motel, lodging-house, and short-term-home occupancy for 30 consecutive days or less is taxed at 15 percent.
- Identity or conditions: lodging type: hotel/motel lodging house or short term home; maximum rental days: 30
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 15%
- Local rate: 0%
- Taxable base: room occupancy receipts
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: lodging type and consecutive days
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: represent lodging subtype and consecutive occupancy; pin effective start; independent review
lodging
Research observation — independent review required
Bed-and-breakfast occupancy for 30 consecutive days or less is taxed at 11 percent.
- Identity or conditions: lodging type: bed and breakfast; maximum rental days: 30
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 11%
- Local rate: 0%
- Taxable base: room occupancy receipts
- Local interaction: no local rate
- Sourcing: standard situs
- Evidence required: lodging type and consecutive days
- Effective-window status: current authority verified start not pinned
- Runtime boundary: condition engine and special rate resolver required
- Before operational use: represent lodging subtype and consecutive occupancy; pin effective start; independent review
cannabis
Research observation — independent review required
Before 2026-10-01, the statewide cannabis tax is per milligram by product form and is in addition to 3 percent municipal cannabis tax and sales and use tax.
- Identity or conditions: subtype: plant edible or other; thc milligrams required: yes
- Treatment: included in base
- Rate application: amount aware required
- Rate class: amount aware
- Local rate: 3%
- Taxable base: sales price plus product form thc milligrams
- Local interaction: product specific local
- Sourcing: standard situs
- Evidence required: product form and label thc milligrams
- Effective end: 2026-09-30
- Effective-window status: current authority and end verified start not pinned
- Runtime boundary: amount formula and local component required
- Before operational use: pin start of current regime; represent product form and THC quantity; implement amount formula and municipal component; independent review
State authority research source 1 · State authority research source 2
cannabis
Research observation — independent review required
Beginning 2026-10-01, the statewide cannabis tax changes to 10.75 percent of gross receipts instead of a THC-content amount.
- Treatment: included in base
- Rate application: special rate required
- Rate class: special
- State rate: 10.75%
- Local rate: 3%
- Taxable base: gross receipts
- Local interaction: product specific local
- Sourcing: standard situs
- Evidence required: cannabis product identity
- Effective start: 2026-10-01
- Effective-window status: future statewide rate start verified other components pending
- Runtime boundary: future special rate and component composition required
- Before operational use: confirm post-change municipal and sales-tax component interaction; implement future effective window; independent review
State authority research source 1 · State authority research source 2
Sales-tax holiday research
Connecticut's recurring sales-tax-free week covers qualifying clothing and footwear under the statutory price threshold.
Holiday logic must check the event window, item definition, price cap, transaction timing, local participation, exchanges, and rain checks.
Returns and filing workflows
The principal repository-tracked return is OS-114. Paper eligibility is taxpayer-specific; electronic filing or a waiver may control.
- Tracked form version: OS-114, Rev. 07/2026 (revision code 0726)
- Paper filing posture: taxpayer specific
- Account data required: state tax account number, filing frequency
Repository-verified workflow outputs
- Worksheet for portal entry
- Portal upload file
Marketplace-facilitated sales
Facilitated sales generally enter gross receipts and are removed through the state's designated deduction or exclusion workflow.
Tracked reporting location: OS-114 Line 15
Registration, nexus thresholds, zero-return obligations, facilitator certifications, and direct sales must be evaluated separately.
Exemption documentation
The repository tracks Connecticut Sales and Use Tax Resale Certificate. Certificate validity still depends on the purchaser, seller, claimed use, dates, signatures, and any state-specific acceptance conditions.
A certificate should be tied to the correct customer, seller, state, reason, product use, effective period, and transaction population.
How Prophit supports the work
Prophit currently structures Connecticut transaction data for worksheet for portal entry, portal upload file. Availability is kept separate from customer credentials, state acceptance, and direct transmission authority.
- Research coverage — Inventory tracked: 23 treatment records across 17 product families
- Jurisdiction logic — Evidence-gated: State, local, sourcing, and special-regime facts require current situs evidence
- Workflow output — Available: Worksheet for portal entry, Portal upload file
- Direct transmission — Authority-gated: Not represented by this public guide as authorized or available
Product availability varies by jurisdiction and customer configuration. Workflow support does not establish registration, filing authority, credentials, agency acceptance, or tax advice.
Official and reviewed sources
Rules change. Confirm the current source and effective period before acting.