Just Got Married? Your CT Tax Checklist
Just got married? Here's your Connecticut tax checklist for newlyweds: what changes on your federal and CT returns, and what to do before December 31. Checked November 3, 2026.
For general education only. Not tax, legal, insurance, or investment advice, and not a promise of any result. Tax rules and due dates change, so confirm with the IRS (irs.gov), the CT Department of Revenue Services (portal.ct.gov/DRS) or your town before you act, and ask your tax preparer about your own situation.
What changes for your taxes
- Filing status: if you're married on the last day of the year, you're treated as married for the whole year, so you'll file jointly or married filing separately (IRS Pub 501).
- Connecticut follows your federal status: generally, your CT filing status must match your federal filing status (CT-1040 instructions).
- Two incomes can push you into a higher bracket, so the withholding from two separate jobs may fall short. That's worth checking now.
What to do before December 31, 2026
- To do Changed your name? Report it to the Social Security Administration first. The name on your return must match SSA records (IRS).
- To do New address? Tell the post office, your employers, and the IRS (Form 8822) (IRS).
- To do Run the IRS Tax Withholding Estimator together, then give each employer a new Form W-4 and Form CT-W4 if needed.
- To do Health insurance: marriage is a qualifying life event. Access Health CT generally gives you 60 days to enroll or change plans (Access Health CT).
- To do Review beneficiaries on workplace plans and insurance.
- To do Start one folder for both of your tax documents.
The Connecticut side
- CT filing status generally must match federal (CT DRS).
- If one spouse is a CT resident and the other isn't, special CT filing rules apply. Ask your tax preparer.
Related free tools: What did I forget? CT tax checker · Tax deadline reminders · Tax checklists
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Frequently asked questions
If we got married in December, can we file jointly for the whole year?
Yes. Your filing status depends on your marital status on the last day of the year, so a December wedding means you're considered married for the whole year.
Do we have to file a joint Connecticut return if we file jointly federally?
Generally, your Connecticut filing status must match your federal filing status. There are special rules when one spouse is a nonresident or part-year resident.
Should I change my W-4 after getting married?
It's worth checking. Use the IRS Tax Withholding Estimator with both incomes and give your employers new W-4 and CT-W4 forms if the result changes.
Sources (Checked November 3, 2026)
- IRS Publication 501: Filing status (marital status on the last day of the year)
- CT DRS: 2025 Form CT-1040 instructions (filing status, property tax credit)
- IRS: Marriage means making changes before next filing season
- IRS: Name changes and Social Security number matching
- IRS: About Form 8822, Change of Address
- IRS: Tax Withholding Estimator
- IRS: About Form W-4
- CT DRS: Form CT-W4 (2026)
- Access Health CT: Special Enrollment Periods
For general education only. Not tax, legal, insurance, or investment advice, and not a promise of any result. Tax rules and due dates change, so confirm with the IRS (irs.gov), the CT Department of Revenue Services (portal.ct.gov/DRS) or your town before you act, and ask your tax preparer about your own situation.
Life just changed and you want your taxes handled right? We can help you sort out what applies to you.
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