Texas Sales Tax Calculator

The arithmetic

Texas levies 6.25% at state level, with local jurisdictions able to add up to 2%, so the combined rate is capped at 8.25%. Total = taxable amount × combined rate.

The cap is the distinguishing feature. Unlike California or Washington, no address in Texas exceeds 8.25%, which bounds the variation considerably.

How that looks in practice

A $58 order at the 6.25% state rate alone: $3.63. At the 8.25% maximum: $4.79. The spread across the entire state is $1.16.

For a remote seller there is a further option: a single local use tax rate of 1.75%, elected in place of determining the actual local rate at each address. That gives a flat 8% everywhere.

On the same $58 order that is $4.64, slightly above the state-only figure and slightly below the maximum. For a seller with orders spread across Texas it removes the entire local determination problem for a small average cost.

Where this breaks down

Texas uses origin sourcing for sellers located in the state and destination sourcing for remote sellers, so two businesses selling the same product to the same customer can apply different rates depending on where they are.

The economic nexus threshold is $500,000 in total Texas revenue, measured over the preceding twelve calendar months rather than the calendar year, a rolling test that can be crossed mid-year.

What this changes

For a remote seller with dispersed Texas orders, evaluate the 1.75% single local rate election. It costs a little against the average and removes address-level local determination entirely, which for many sellers is a good trade.

Then check whether your business has physical presence in Texas, because that switches you to origin sourcing and a different set of rules.

Taxable services, and the categories that surprise

Texas taxes a broader range of services than most states, including data processing, information services, security services, and certain repair and maintenance work. Data processing in particular is defined widely enough to capture many software and hosting arrangements.

Data processing services also carry a partial exemption on a portion of the charge, which means the effective rate on them is lower than the headline, a detail easy to miss and worth applying.

For a business selling anything that might fall within these definitions, the classification question matters more than the rate question. A software or services business assuming its supplies are non-taxable because they are non-taxable in its home state is making the most common error in Texas compliance.

Beyond that, it has to be made formally with the Comptroller and applies prospectively, and it can be revoked with notice. It is not a calculation choice made silently at filing.

Whether it pays depends on where your Texas customers actually are. If most orders go to areas at or near the 2% local maximum, the 1.75% flat rate saves money as well as effort. If a large share go to areas with little or no local tax, it costs money, so the election is worth deciding from the order distribution rather than adopting for convenience alone.

Running last year's Texas orders against both methods takes one query and gives a definitive answer rather than an assumption.