Vehicle Registration

Williamson County Vehicles Still Need an Emissions Test

Safety inspections are no longer required to renew registration in Texas, but Williamson County vehicles still require a passing emissions inspection.

Williamson County Cars & Driving

Texas no longer requires an annual safety inspection for most non-commercial vehicles. That is statewide. But Williamson County is part of the Austin-area emissions zone. That means your car still needs a passing emissions test. You cannot renew your registration without it.

You can renew your registration online, by mail, or in person. The Williamson County Tax Office handles registration and title transfers. That office is also where you go for vehicle-related services. Check current rules at txdmv.gov or call the Williamson County Tax Office at 512-943-1601.

Source to confirm: TxDMV — Williamson County Tax Office

More Williamson County notes

Property Tax Basics

Two Offices Handle Your Property Tax in Williamson County

The appraisal district sets your property's value; the tax office collects the money — and they are separate offices.

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Homestead Exemption

Texas Homestead Exemption Cuts Your School Tax Bill

Williamson County homeowners who live in their home can apply for a $140,000 reduction off the value used to figure school taxes.

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Age 65 / Disability Exemption

Extra Property Tax Breaks for Seniors and Disabled Homeowners

Homeowners who are 65 or older, or who have a qualifying disability, can get an additional property tax exemption and a school tax freeze.

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Disabled Veteran Exemption

Veterans with Service Disabilities Get a Property Tax Break

Texas veterans with a service-connected disability rating of 10% or more qualify for a property tax exemption in Williamson County.

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