Mill rate
29.92
$1 per $1,000 assessed
Calculator · Towns · Colchester
New London County · 17 of 21 in the county
Colchester property tax
FY2026 mill rate 29.92. Real property is assessed at 70% of fair market value. Statewide rank: 103 of 169 (lowest mill rate is 1).
Effective rate
2.09%
Tax ÷ market value
Tax on $1.6M
$33,510.40
$2,792.53 / month
MV mill rate
29.92
Secondary; cap 32.46
Buying in Colchester? A lender PITI estimate should include about $2,792.53/mo of property tax.
Example taxes in Colchester
| Market value | Assessed (70%) | Annual tax | Monthly |
|---|---|---|---|
| $500,000.00 | $350,000.00 | $10,472.00 | $872.67 |
| $1,000,000.00 | $700,000.00 | $20,944.00 | $1,745.33 |
| $1,600,000.00 | $1,120,000.00 | $33,510.40 | $2,792.53 |
| $2,500,000.00 | $1,750,000.00 | $52,360.00 | $4,363.33 |
Compared with nearby towns
Same $1,600,000 house in Colchester, Lebanon and Salem. Open the live calculator to change the price.
Formula
annual tax = (fair market value × 0.70 × 29.92) ÷ 1,000
For a $1,000,000 home in Colchester that is $20,944.00 per year before exemptions and special districts.
Confirm with the Colchester assessor.
Fire districts and other special taxing districts can add mills on top of this municipal rate. Exemptions are not applied here. Think the assessment is too high? See how to appeal a CT property assessment.