Overview
- All 16 branches and the downtown Tax Office will open Saturday from 8 a.m. to 5:30 p.m. to accept payments.
- Payments are deemed on time by a USPS postmark, a UPS or FedEx receipt mark, or the transaction date for online or phone payments.
- Property owners can pay in person, by mail, online via the Harris County Tax Office portal, or by calling 713-274-CARD.
- Credit card payments include a 2.40% nonrefundable surcharge with a $1 minimum, and e‑checks cost $0.50 per transaction.
- Unpaid balances on Feb. 1 begin accruing penalty and interest, with possible 15%–20% collection fees if sent to a delinquent tax law firm.