Greenwich Seller Closing Cost Calculator
Connecticut seller closing costs are dominated by two lines: CT state conveyance tax (tiered 0.75% / 1.25% / 2.25% with the top tier on $2.5M+ acting as the de facto mansion tax) and the 0.25% municipal portion. Non-CT residents also face a 10% cash-at-closing withholding (refundable against actual income tax liability). Adjust sale price, mortgage payoff, and commission for the full picture.
Your sale
On a $3.50M Greenwich sale, seller closing costs run approximately $271,350 (7.75% of sale price). The dominant lines are broker commission (6%) and CT state conveyance tax (1.42% effective blended rate) plus the 0.25% Greenwich municipal portion.
Statutory taxes
$58,500Tiered: 0.75% on first $800K, 1.25% on $800K–$2.5M, 2.25% above $2.5M. Effective blended rate shown.
Source: CGS §12-494
0.25% on the full sale price. Greenwich is at the standard rate — designated "targeted investment communities" can charge up to 0.50%.
Source: CGS §12-494 (municipal portion)
Broker + attorney fees
$212,850Estimated at 6%. Greenwich / Gold Coast commission norms run 4.5-6% on residential.
Source: Market typical (negotiable)
CT requires attorney representation. Range $1,500-$3,500 for HNW transactions.
Source: Market typical (Greenwich / Gold Coast HNW)
Source: Greenwich Town Clerk schedule
Wire fees, courier, document prep, etc.
Source: Market typical
Note: If you are NOT a CT resident, the closing agent is statutorily required to withhold 10% of the consideration ($350,000 on this sale price) for CT income tax purposes (Form AU-261). This withholding is refundable against your actual CT income tax liability — it is not an additional tax — but it's a real cash-at-closing item that affects your net proceeds. Consult your CPA before contract if you're a non-resident seller.
Note: Sales above $2.5M hit the top state conveyance tier (2.25%). This is the closest thing CT has to a mansion tax — there's no separate transfer tax on top.
Considering a Greenwich sale?
For non-resident sellers, the 10% CT income-tax withholding is the big planning surprise — refundable, but it can hold up $300K–$1M+ of net proceeds for months after closing. The structuring conversation often centers on timing, withholding mitigation, and the eventual-purchase strategy if the proceeds are being redeployed.
The Roebling Team at Compass executes transactions directly in Manhattan. For Greenwich buyers and sellers, we collaborate with Compass agents in Greenwich via referral — clients work with the best on-the-ground representation while keeping the analytical framework consistent across markets. This calculator is an informational research tool, not solicitation of representation.
For trans-market clients (Manhattan + Greenwich portfolios) or to discuss your specific transaction, schedule a consultation. Where appropriate, we’ll introduce you to a vetted Compass agent in the local market.