Mill rate
15.5
$1 per $1,000 assessed
Calculator · Towns · Old Saybrook
Middlesex County · 1 of 15 in the county
Old Saybrook property tax
FY2026 mill rate 15.5. Real property is assessed at 70% of fair market value. Statewide rank: 9 of 169 (lowest mill rate is 1).
Effective rate
1.09%
Tax ÷ market value
Tax on $1.6M
$17,360.00
$1,446.67 / month
MV mill rate
15.5
Secondary; cap 32.46
Buying in Old Saybrook? A lender PITI estimate should include about $1,446.67/mo of property tax.
Example taxes in Old Saybrook
| Market value | Assessed (70%) | Annual tax | Monthly |
|---|---|---|---|
| $500,000.00 | $350,000.00 | $5,425.00 | $452.08 |
| $1,000,000.00 | $700,000.00 | $10,850.00 | $904.17 |
| $1,600,000.00 | $1,120,000.00 | $17,360.00 | $1,446.67 |
| $2,500,000.00 | $1,750,000.00 | $27,125.00 | $2,260.42 |
Compared with nearby towns
Same $1,600,000 house in Old Saybrook, Westbrook and Essex. Open the live calculator to change the price.
Formula
annual tax = (fair market value × 0.70 × 15.5) ÷ 1,000
For a $1,000,000 home in Old Saybrook that is $10,850.00 per year before exemptions and special districts.
Confirm with the Old Saybrook 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.