Mill rate
35.81
$1 per $1,000 assessed
Calculator · Towns · Thomaston
Litchfield County · 24 of 26 in the county
Thomaston property tax
FY2026 mill rate 35.81 (motor vehicle 32.46, capped at 32.46). Real property is assessed at 70% of fair market value. Statewide rank: 142 of 169 (lowest mill rate is 1).
Effective rate
2.51%
Tax ÷ market value
Tax on $1.6M
$40,107.20
$3,342.27 / month
MV mill rate
32.46
Secondary; cap 32.46
Buying in Thomaston? A lender PITI estimate should include about $3,342.27/mo of property tax.
Example taxes in Thomaston
| Market value | Assessed (70%) | Annual tax | Monthly |
|---|---|---|---|
| $500,000.00 | $350,000.00 | $12,533.50 | $1,044.46 |
| $1,000,000.00 | $700,000.00 | $25,067.00 | $2,088.92 |
| $1,600,000.00 | $1,120,000.00 | $40,107.20 | $3,342.27 |
| $2,500,000.00 | $1,750,000.00 | $62,667.50 | $5,222.29 |
Compared with nearby towns
Same $1,600,000 house in Thomaston, Plymouth and Watertown. Open the live calculator to change the price.
Formula
annual tax = (fair market value × 0.70 × 35.81) ÷ 1,000
For a $1,000,000 home in Thomaston that is $25,067.00 per year before exemptions and special districts.
Confirm with the Thomaston 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.