Connecticut Income Tax Calculator
Connecticut's top marginal state income tax rate is 6.99%. This calculator combines federal and state brackets to estimate your total liability.
Connecticut Income Tax in 2026
Connecticut uses a progressive income tax with a top marginal rate of 6.99%. That rate kicks in at higher income levels; most filers fall into a lower effective bracket. Lower-income households often pay an effective state rate of 2–4%.
Combined with federal tax (10%–37%), Social Security (6.2% up to the wage base) and Medicare (1.45%), the all-in federal+state tax bite for Connecticut residents at $100k gross typically lands in the 25%–32% effective range, depending on deductions.
Federal + State Tax at Common Income Levels (Connecticut, single filer)
| إجمالي الدخل | الضريبة الفيدرالية | ضريبة الولاية | الصافي |
|---|---|---|---|
| $40,000 | $2,816 | $1,154 | $36,030 |
| $60,000 | $5,216 | $2,063 | $52,721 |
| $80,000 | $9,441 | $2,971 | $67,588 |
| $100,000 | $13,841 | $3,880 | $82,279 |
| $150,000 | $25,539 | $6,152 | $118,310 |
| $200,000 | $37,539 | $8,424 | $154,038 |
| $300,000 | $70,265 | $12,967 | $216,768 |
Estimates only — assumes standard deduction, no credits, no FICA. Consult a CPA for filing decisions.