Connecticut Mansion Tax Calculator 2026
Instantly estimate the Connecticut conveyance tax surcharge on your property sale. CT applies a 2.25% marginal tax on the portion exceeding $800,000.
CT Conveyance Tax Surcharge Calculator
Connecticut • Instant Estimate
Estimated Conveyance Tax Surcharge
$38,250
Estimate based on current Connecticut tax regulations. Consult a licensed professional for exact figures.
Example: Mansion Tax Calculation for a $3 Million Property in 2026
A property sold for $3,000,000 in Connecticut exceeds the $800,000 threshold by $2,200,000. Because CT's surcharge is marginal, the 2.25% rate applies only to the excess portion — not the entire price — resulting in a tax of $49,500.
CT Conveyance Tax Surcharge — 2026
| Portion of Sale Price | Marginal Rate |
|---|---|
| First $800,000 | 0.00% (Exempt) |
| Amount over $800,000 | 2.25% |
💡 Unlike NYC's flat mansion tax, Connecticut's surcharge is marginal — only the amount above $800,000 is taxed, making it significantly less burdensome at lower price points.
Connecticut Conveyance Tax FAQ
How does the CT conveyance tax surcharge work?
Connecticut's surcharge is marginal — it applies only to the portion of the sale price exceeding $800,000. The rate is 2.25% on the excess, not on the entire price.
Who pays the CT conveyance tax?
The conveyance tax is generally split between buyer and seller. The surcharge portion is typically the seller's responsibility, though terms can be negotiated.
Is the CT mansion tax marginal or flat?
Marginal. Only the portion exceeding $800,000 is taxed at 2.25%. This contrasts with NYC's flat mansion tax which applies the rate to the entire purchase price.
Are there any exemptions?
Properties sold for $800,000 or less are fully exempt. Transfers between spouses, governmental entities, and qualifying non-profits may also be exempt.