Connecticut Estate Tax Calculator
Calculate estate and inheritance tax in Connecticut. State estate tax up to 12%. Federal exemption $15M. Free calculator.
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Total Estate Tax
Estimated • Based on your inputs
Net to Heirs
$2,150,000.00
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
Estate tax calculator for Connecticut. Connecticut has a state estate tax with a top rate of 12%. Exemption: $15,000,000. Federal estate tax exemption: $15,000,000 for 2026 (IRC § 2010(c)(3), as amended by the One Big Beautiful Bill Act, Pub. L. 119-21 § 70106), with the graduated § 2001(c) schedule running 18-40%; this calculator applies the 40% top rate to the amount above the exemption. Unlimited marital deduction applies to spousal transfers. Charitable bequests are fully deductible.
Key State Information
Connecticut estate tax facts: Connecticut has a state estate tax with a top rate of 12%. Exemption: $15,000,000. Median home value: $455,000. If your estate exceeds $15,000,000, Connecticut estate tax can apply at rates up to 12%.
Example Calculation
Let's calculate estate tax for a typical high-net-worth estate in Connecticut.
Consider a $20 million estate. After subtracting $200,000 in debts, funeral costs, and administrative expenses, the taxable estate is $19.8 million. The 2026 federal exemption of $15 million leaves $4.8 million subject to federal estate tax at 40%. If Connecticut also imposes its own estate tax, that state's (typically much lower) exemption and rate schedule would add another layer on top.
Result: Federal estate tax: approximately $1,920,000 (40% of the $4.8 million above the federal exemption). State estate tax, where applicable, is calculated separately using that state's own exemption and bracket structure. This is why estate planning with trusts, lifetime gifting ($19,000/year per recipient exclusion), and life insurance strategies remains valuable for estates approaching or exceeding these thresholds.
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StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
Does Connecticut have an estate tax?
Yes. Connecticut has a state estate tax. The exemption is $15,000,000 and the top rate is 12%.
How can I reduce estate tax in Connecticut?
Key strategies: (1) Maximize the marital deduction for spousal transfers, (2) Make annual gift tax exclusion gifts ($19,000 per recipient in 2026), (3) Use charitable bequests, (4) Establish irrevocable trusts, (5) Move life insurance to an ILIT. In Connecticut, consider the $15,000,000 threshold in your planning.
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