Mill rate
43.2
$1 per $1,000 assessed
Calculator · Towns · Derby
New Haven County · 25 of 27 in the county
Derby property tax
FY2026 mill rate 43.2 (motor vehicle 32.46, capped at 32.46). Real property is assessed at 70% of fair market value. Statewide rank: 163 of 169 (lowest mill rate is 1).
Effective rate
3.02%
Tax ÷ market value
Tax on $1.6M
$48,384.00
$4,032.00 / month
MV mill rate
32.46
Secondary; cap 32.46
Buying in Derby? A lender PITI estimate should include about $4,032.00/mo of property tax.
Example taxes in Derby
| Market value | Assessed (70%) | Annual tax | Monthly |
|---|---|---|---|
| $500,000.00 | $350,000.00 | $15,120.00 | $1,260.00 |
| $1,000,000.00 | $700,000.00 | $30,240.00 | $2,520.00 |
| $1,600,000.00 | $1,120,000.00 | $48,384.00 | $4,032.00 |
| $2,500,000.00 | $1,750,000.00 | $75,600.00 | $6,300.00 |
Compared with nearby towns
Same $1,600,000 house in Derby, Ansonia and Seymour. Open the live calculator to change the price.
Formula
annual tax = (fair market value × 0.70 × 43.2) ÷ 1,000
For a $1,000,000 home in Derby that is $30,240.00 per year before exemptions and special districts.
Confirm with the Derby 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.