Due dates, payment options, and what Hamden residents need to know to avoid late fees
Overview
Hamden's current mill rate is 51.88 mills for the 2024 Grand List (FY 2025–2026), one of the highest in the state. The town has implemented a 4-year phase-in for its recent revaluation. Note that for FY 2025–2026, tax bills have an adjusted due date of August 1, 2025, with a grace period through September 2, 2025.
Important: Hamden does not mail a second-installment bill. If your tax bill exceeds $250, your second payment is due January 1 — even if you don't receive a bill. Missing this deadline triggers interest backdated to the due date.
Mill Rate & What You'll Pay
Current mill rate: 51.88 mills for real estate/personal property; 32.46 mills for motor vehicles (2024 Grand List / FY 2025–2026)
The mill rate represents $51.88 in tax per $1,000 of assessed value. A home assessed at $200,000 would owe approximately $10,376 per year. The 4-year phase-in from the revaluation may affect individual assessments.
Due Dates & Grace Periods
Tax bills under $250 are due in a single payment. Bills of $250 or more are split into two installments.
Bills were mailed on July 23, 2025.
How to Pay
Online
Pay at mytaxbill.org. Fees: checking account payments $0.95; credit/debit card payments 2.99% of the transaction amount.
By Mail
Mail payments to the Hamden Tax Office. Include your bill stub with payment.
In Person
Visit the Tax Office at Hamden Government Center.
Late Payments & Interest
Interest is charged at 1.5% per month (18% annually) from the original due date per Connecticut General Statutes. A returned electronic check incurs a $20 penalty. Interest cannot be waived.
Tax Relief & Exemption Programs
Hamden offers elderly/disabled tax relief and veterans' exemptions. Contact the Tax Office or Assessor's office for eligibility information.
Tips & Resources
Frequently Asked Questions
Q: When is my property tax due?
For FY 2025–2026, the first installment is due August 1, 2025, with a grace period through September 2, 2025. The second installment is due January 1, 2026, with a grace period through February 2, 2026.
Q: Will I get a bill for my second installment?
No. Hamden does not mail a second-installment bill. It is your responsibility to pay the January installment on time.
Q: Can I pay my full year's taxes at once?
Yes. You can pay the full annual amount with your first installment.
Q: What is the interest rate if I pay late?
Interest is 1.5% per month (18% annually), calculated from the original due date.
This guide is for informational purposes only and does not constitute tax or legal advice. Consult a tax professional or your town assessor for guidance specific to your situation.
Know something we missed? Email tips@thequinnipiacpost.com to help us keep this guide up to date.
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