Commuter taxes 2026

Live in Massachusetts, work in Connecticut

Without wage reciprocity, the work state may tax wages earned there. Your home state generally offers a limited credit for eligible tax paid on the same income. Filing requirements, credit limits and local taxes need a separate check.

By Abu HasnatPage updated Nov 7, 2026Data: Massachusetts and Connecticut revenue departments (methodology)

Official tax guidance for both states

Check withholding, filing requirements and current forms with each state's tax agency.

Massachusetts: Department of Revenue (opens in new tab)
Connecticut: Connecticut Department of Revenue Services (opens in new tab)

Agency directory checked 2026-10-01 against the IRS state-government directory. This verifies the agency links, not an individual tax result. Use forms for the year you are filing.

Before you use this estimate

This model assumes a full-year resident of Massachusetts, ordinary employee wages and all workdays physically in Connecticut. Check exemption eligibility before treating a work-state amount of $0 as your own result. Withholding is a prepayment, not final tax liability. Other income, a move during the year, remote work and separate local taxes or credits can change the result.

I live inI work inAnnual wages ($)Filing status

State income tax: $4,975 a year

Modeled annual state income tax for living in Massachusetts and working in Connecticut: about $4,975 on $100,000 of wages, $195 more than if you worked in Massachusetts.

Tax guide and official sources: live in Massachusetts, work in Connecticut

Official agency starting points: Massachusetts tax agency (opens in new tab) · Connecticut tax agency (opens in new tab). These directory links identify the selected states' agencies, not your filing obligations. Check their individual-tax guidance and forms for the year you are filing.

Tax to Connecticut

$4,975

nonresident

Tax to Massachusetts

resident, after credit

Total state tax

$4,975

Typical state returns

This is the usual filing pattern, not a determination that you must file. Filing thresholds, age or dependent status, other income and withholding refunds can change which returns you need.

How this $100,000 estimate adds up

These steps follow the selected home, work state, salary and filing status. They reconcile the model's annual liability, not the amounts withheld from your paycheck.

Modeled state income tax for Massachusetts residence and Connecticut work
Step	Connecticut work state	Massachusetts home state
Tax before the modeled other-state credit	$4,975	$4,780
Modeled other-state credit subtracted	$0	$4,780
Tax after that credit	$4,975	$0

Total: $4,975 + $0 = $4,975 a year. Amounts are rounded for display. Work-state wage exemptions, when applicable, are already reflected in the first row; they are not an other-state credit.

The modeled credit is applied in Massachusetts, the home state. Actual eligibility and credit limits require the state instructions. Included county components stay in these amounts; excluded local taxes and credits stay excluded. Federal income tax, payroll programs and refund eligibility are outside this reconciliation.

State tax at different salaries

Wages	To CT	To MA	Modeled total	If you worked in MA
$50,000	$2,000	$280	$2,280	$2,280
$75,000	$3,475	$55	$3,530	$3,530
$100,000	$4,975	$0	$4,975	$4,780
$150,000	$8,225	$0	$8,225	$7,280
$250,000	$15,400	$0	$15,400	$12,280

Single filer, all wages earned in Connecticut, 2026 state tax rules, standard deductions. Local income taxes not included.

From paycheck withholding to your returns

Withholding: Give Connecticut payroll Form CT-W4 for Connecticut-source services. Massachusetts withholding or estimates may also be needed after its eligible credit. Use CT-W4NA if work is split inside and outside Connecticut, following the current employer guide.
Returns: Prepare Connecticut CT-1040NR/PY with Schedule CT-SI, then Massachusetts resident Form 1 with the other-jurisdiction credit worksheet and Schedule OJC. Current annual return links show 2025 forms; use the return for the tax year being filed.
Credit or refund: Massachusetts limits its credit to the eligible Connecticut tax or Massachusetts tax on the same income, whichever is smaller. City/local tax, penalties and federal tax do not qualify. Use final eligible tax liability, not the W-2 withholding amount.

Worked example: $100,000 of wages

Single filer, full-year resident of Massachusetts, all work performed in Connecticut, no other income, standard deductions and modeled personal exemptions. Before credit, Massachusetts tax is $4,780. Modeled Massachusetts credit: $4,780. Pay $4,975 to Connecticut and $0 to Massachusetts, modeled total $4,975.

The full-year wage illustration uses the site's ordinary-income planning inputs, including Connecticut's bracket-benefit add-back. Special credits, payroll benefit deductions, part-year income and hybrid allocation are outside this worked example; the withholding certificate does not determine the final credit.

Annual liability, not paycheck withholding or a refund estimate. Federal tax, payroll programs, other local taxes, special credits and part-year residency are excluded. Local income taxes not included.

Remote-work and local exceptions

For a Massachusetts resident, Connecticut withholding follows services physically performed in Connecticut. Massachusetts home-working days are not Connecticut services merely because the employer is based there. This all-Connecticut example does not allocate days or apply special employee exceptions; keep work-location records.

Official forms and instructions

Source audit 2026-10-14. Use the return and instructions for the year you are filing; a current-forms link may still show a prior-year return. Official sources checked; not independently reviewed.

What to do

Keep a record of the days you work in each state, especially if you sometimes work from home.

Working from home for a Connecticut employer

Connecticut has a "convenience of the employer" rule. Retaliatory rule: applies only to nonresidents whose home state has its own convenience rule (e.g., residents of NY, PA, DE, NE working remotely for CT employers).

Frequently asked questions

Do I pay Connecticut income tax if I live in Massachusetts?

Yes. Connecticut taxes wages earned there by nonresidents. On $100,000 that's about $4,975.

Do I have to file taxes in both Massachusetts and Connecticut?

Prepare Connecticut CT-1040NR/PY with Schedule CT-SI, then Massachusetts resident Form 1 with the other-jurisdiction credit worksheet and Schedule OJC. Current annual return links show 2025 forms; use the return for the tax year being filed.

Will I be taxed twice?

The modeled state credit reduces overlap on eligible wages; separate local taxes or sourcing differences can still leave additional tax. Massachusetts credits the tax you pay Connecticut, so your total is about $4,975 on $100,000, compared with $4,780 if you also worked in Massachusetts. Local city or county taxes may still apply.

Rules reviewed 2026-09-24 from state revenue departments and the Tax Foundation. Estimates only; confirm with each state's revenue department.