Connecticut tax notes
- Top rate 6.99% above $500k single / $1M joint. Property tax averages 2.14% of value (5th highest nationally). PTET available.
Sample tax numbers for Connecticut
Quick orientation — use the full calculator for your actual situation.
Tax moves that matter most for Connecticut
If you have any pass-through business income (S-Corp, partnership, multi-member LLC), Connecticut allows the PTET election that effectively bypasses the federal $10,000 SALT cap on the state income tax portion. Typical savings for high earners: $2k-$15k/year.
At nearly twice the national average, property tax dominates the SALT cap calculation in Connecticut. Bunching property tax payments (paying 18 months in one calendar year) can sometimes push you above the standard deduction in alternating years.
At net SE income above ~$80k-$100k, electing S-Corp typically saves $5k-$15k/yr in self-employment tax — the math is largely federal but affects Connecticut state tax via PTET (if applicable).
If you have 1099 income, Solo 401(k) lets you contribute up to $70,000/yr (2025) — far more than SEP-IRA in most cases. Reduces both federal and Connecticut state income tax.
Run your Connecticut numbers
Open the full optimizer with Connecticut pre-selected to see your specific tax picture.
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