Connecticut Carrying Cost Calculator
Mortgage, property taxes, insurance and upkeep, monthly. Connecticut does not reassess on sale, so the estimate uses each town’s current mill rate and how far its assessments sit below market; the listing’s current taxes are more accurate when you have them.
| Mortgage (principal + interest) | $13,971 |
| Property taxes (estimate) | $1,772 |
| Insurance | not entered |
| Upkeep and grounds | $1,783 |
| Utilities | not entered |
True economic cost adds what the down payment and closing cash could earn (4.5%) and spreads closing and resale costs over a 7-year hold, less principal paid down. Buyer closing costs ($32,245) come from the Connecticut closing-cost calculator.
$21,264 a year, likely $17,011–$25,517.
Estimated tax = purchase price x 0.70 (statutory assessment ratio; Greenwich revalued on the 2025 grand list) x 10.125 mills / 1,000 = 0.7088% of price.
- Greenwich revalued on the October 1, 2025 grand list; the FY2027 rate (10.125 mills, down from 12.041) is the first set on the new values. Assessments were set at 70% of market value as of October 1, 2025, so a purchase at today's price may be assessed somewhat below 70% of the price.
- Greenwich's next revaluation is the 2030 grand list (bills from FY2032).
- Connecticut does not reassess on sale: the buyer inherits the parcel's current assessment, so the actual bill is the town's assessed value times the mill rate; check the assessor's field card before relying on this estimate.
- Greenwich has about 30 private-road, association and sewer taxing districts that add a separate levy on top of the town rate (FY2027: 0.0443 to 9.29 mills; the Greenwich Sewer District is 0.268 mills). Whether a parcel pays one is parcel-specific.
- Band widened to ±20%: the 2025 revaluation raised home assessments less than a full reset to 70% of market implies, so a buyer may inherit an assessment below 70% of price.
Sources and rates (checked 2026-10-12)
- Greenwich mill rate, real and personal property: 10.125 mills ($ per $1,000 of assessed value) (FY2027 (2025 grand list)) · source
- Assessment ratio (statutory 70% of market value; town revalued on the 2025 grand list): 0.7 assessed value / market value (2025 grand list) · source
- Last revaluation: 2025 grand list year (2025) · source
- Next scheduled revaluation: 2030 grand list year (2030) · source
Weighing a move from an NYC apartment?
Send the town and your price range. We’ll set the monthly cost here against what you carry in the city today, and how the sale and purchase fit together.
The Roebling Team at Compass executes transactions directly in Manhattan. For Connecticut buyers and sellers, we collaborate with Compass agents in Connecticut 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 + Connecticut 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.