State sales tax and local sales tax are two layers that can appear in the combined rate on a taxable purchase. The state sets or administers the statewide portion. A city, county, special district or transit authority may add a local portion under the rules that apply in that jurisdiction.
The final rate on a receipt can change when the same item is bought in a different city, delivered to another address or used in another taxing area. Texas, Washington and New York are examples of states that describe how location affects the applicable rate in their guidance.
A state rate is not always the only tax on a receipt. To calculate the tax for a specific transaction, identify the taxable price, the state and local rate components, the correct sourcing rule and the effective date. This article explains the rate structure and the practical steps to find the correct components; it does not make a tax determination for any particular transaction.
Table of Contents
What State Sales Tax Means
The state rate is the statewide component of a sales or use tax. Texas, for example, states that it imposes a 6.25 percent state sales and use tax on retail sales, leases and rentals of most goods and taxable services.
The state rate is a useful starting point, but it may not be the only tax on the receipt. A state can allow local jurisdictions to add tax, or it can administer local taxes together with the state return.
State rate versus combined rate
If a state rate is 6.25 percent and local additions total 1.5 percent, the combined rate is 7.75 percent. The state portion remains 6.25 percent; the local portion is the additional 1.5 percent.
State rate versus tax amount
A percentage is not the same as a dollar amount. On a $200 taxable purchase at a 7.75 percent combined rate:
$200 x 0.0775 = $15.50 tax
The same rate produces a different tax amount on a different price.
State rate versus taxability
The rate does not determine whether an item or service is taxable. Taxability, exemptions, discounts and special categories must be checked separately.
What Local Sales Tax Adds
Local sales tax may be imposed by cities, counties, special-purpose districts, transit authorities or other local jurisdictions authorized by state law. The names and limits differ by state.
Texas says cities, counties, special purpose districts and transit authorities can impose local sales and use tax up to a combined local maximum of 2 percent, producing a maximum combined rate of 8.25 percent with the state rate.
New York describes its combined rate as the state rate plus local tax and, where applicable, an additional Metropolitan Commuter Transportation District tax.
Local layers can apply to an incorporated city, an unincorporated county area or a special district inside a larger county. A county average cannot always replace an exact address lookup.
Why city names can mislead
A mailing address may use a familiar city name while the tax boundary belongs to another jurisdiction. A ZIP code can also cross city or county lines. Use the tax authority’s lookup rather than choosing the nearest city from a list.
Local rates can change
Local tax rates often have an effective date and may change on a specific date or quarter. Save the date shown in the official table with the calculation.
How the Combined Rate Is Calculated
For a straightforward taxable purchase, add the applicable state and local components:
Combined rate = State rate + Local rate + District or transit rate, if applicable
Then compute the tax:
Sales tax = Taxable price x Combined rate
Example with state and local layers
Suppose the state rate is 6.25 percent, the local rate is 1 percent and a special district rate is 0.5 percent.
6.25% + 1% + 0.5% = 7.75% combined rate
On a taxable $400 purchase:
$400 x 0.0775 = $31 tax
The total due would be $431 before any other charge or adjustment.
Tax-inclusive example
If a $431 total includes only a $400 taxable price and $31 tax, the pre-tax amount can be confirmed by dividing the total by 1.0775:
$431 / 1.0775 = $400
A reverse calculation can separate a known tax-inclusive total. It cannot, by itself, identify the correct local jurisdiction.
Why the Delivery or Use Location Matters
The location that controls the rate depends on the state’s sourcing rules and the transaction type. Washington states that sales tax collection is destination-based and that the rate depends on where the customer receives the merchandise or service.
New York says the jurisdiction where an item is delivered usually determines the local rate. It gives examples involving a store purchase, a service and an Internet order delivered to a customer’s home.
In-store purchase
If a customer takes possession at the seller’s store, the store’s jurisdiction may be relevant under the applicable state rule. This is not universal; check the state’s sourcing guidance for details.
Shipped purchase
For a shipped order, the delivery address can determine the local components. Washington advises businesses to determine the location where the customer receives the merchandise or service.
Service transaction
Services can follow different sourcing rules than tangible goods. New York explains that the local rate for a service is generally tied to where the service is delivered or where the property on which it is performed is located.
Vehicle transaction
Vehicles may have special sourcing rules based on the owner’s residence or registration address. Do not apply a standard retail delivery assumption for vehicle transactions without checking the state rule.
How to Find the Correct Rate
Use the official tax authority’s address or jurisdiction lookup whenever one is available.
- Identify the exact customer, delivery or use address.
- Identify the item, service or rental category.
- Open the state tax authority’s current lookup tool.
- Review the state, local and district components.
- Check the effective date and location code.
- Save the result with the invoice or calculation record.
Texas provides a Sales Tax Rate Locator by address and publishes local codes and effective dates. Washington provides lookup by address, ZIP plus four or map and notes that its downloadable rates are updated quarterly. New York provides a Jurisdiction/Rate Lookup by address and rate publications by jurisdiction.
Why a ZIP code may not be enough
ZIP codes and tax boundaries do not always match. A five-digit ZIP can include several jurisdictions. A full street address or a precise location lookup reduces the chance of selecting the wrong local rate.
Why a rate table needs a date
A rate table without an effective date is incomplete. A local tax change can begin on a specific quarter or date. Store the source date and revisit the table before publishing a public rate guide.
Recordkeeping for sellers
Keep the customer or delivery address, taxable base, rate components, source, effective date, invoice and any exemption certificate. For businesses with multiple locations, maintain a location register rather than copying one city’s rate into every transaction.
Origin-Based vs Destination-Based Sourcing
With origin-based sourcing, the sale is taxed at the rate where the seller is located. With destination-based sourcing, the sale is taxed at the rate where the buyer receives the goods. Destination is the rule in most states. A state must choose origin sourcing on purpose; it is not the default.
For a shipped order, the difference is direct. In an origin state, a seller in that state charges the rate at its own place of business. In a destination state, the seller must look up the rate at the delivery address on the order. A remote seller that ships into a state is taxed on a destination basis in almost every case, even when that state uses origin sourcing for its own sellers.
| State | Rule | What it means for the seller |
|---|---|---|
| California | Hybrid | The 6% state rate and the 1.25% Bradley-Burns local rate follow the seller’s location. District taxes follow the delivery address, and sales shipped into California from out of state are taxed on a destination basis. |
| Illinois | Origin for in-state retailers | An Illinois retailer charges the rate at its own place of business. Remote and marketplace sales into Illinois are taxed on a destination basis. |
| Ohio | Origin for in-state retail sales | A sale is sourced where the vendor receives the order, when the vendor receives the order in Ohio and the buyer receives the goods in Ohio. |
| Tennessee | Origin for sales within Tennessee | Sales within Tennessee are sourced to the seller’s place of business in Tennessee, under a 2023 law in effect July 1, 2024. Sales into Tennessee from out of state follow destination rules. |
| Texas | Origin for local sales tax | Local sales tax is based on the seller’s place of business; local use tax is based on where the buyer first uses the item. State rate 6.25%, local maximum 2%, combined maximum 8.25%. Remote sellers are destination-based or use the 1.75% single local use tax rate. |
| Utah | Origin election | A sale is located where the seller receives the order, if the seller receives the order in Utah and the buyer receives the goods in Utah. |
| Virginia | Origin for in-state dealers | A sale by a dealer in Virginia is sourced to the city or county of the dealer’s place of business. Use tax collected by an out-of-state dealer is destination-based. |
| Missouri | Origin for sales tax | The tax a seller collects depends on the combined rate at the seller’s location. The state rate is 4.225%. Missouri use tax is destination-based. |
| Arizona | Split model | Remote sellers and marketplace facilitators outside Arizona are destination-based, sourced to the consumer’s shipping address. A sale through a marketplace facilitator in Arizona uses that facilitator’s Arizona location rates if the order information is received in Arizona. |
New Mexico is not on this list: it moved to destination sourcing on July 1, 2021.
All other states with a statewide sales tax use destination-based sourcing. Sources checked November 7, 2026.
Common Questions About State and Local Sales Tax
What is the difference between state and local sales tax?
State sales tax is the statewide component. Local sales tax is an additional rate imposed by an authorized city, county, district or other local jurisdiction.
Is the state sales tax rate the final rate?
Not always. Local, district or transit taxes can increase the combined rate.
Why do two cities in the same state have different rates?
They may fall under different county, city, district or transit jurisdictions. The location and effective date determine the applicable components.
How do I find sales tax by address?
Use the relevant state tax authority’s address lookup. Texas, Washington and New York each provide official location or jurisdiction tools.
Does the delivery address matter for an online order?
It can. Washington and New York guidance both explain location-based rules for delivered merchandise. Check the state’s sourcing rules for the transaction.
Can a county rate be used for every city inside the county?
No. A city or district may add a separate local rate. Verify the actual address.
Can I calculate local tax from the state rate alone?
No. You need the applicable local and district components, the taxable price and the correct location.
Does a calculator know the legal tax jurisdiction?
Only a calculator connected to current location data can return an address-based estimate; even then, its result should be checked against official guidance for special transactions. Basic arithmetic tools do not determine sourcing or taxability.
A practical location check
Before using a rate, record the event that creates the tax question. It may be an in-store pickup, a shipment to a customer, an installation at a job site, a service performed at property or a vehicle registration. Then match that event to the state’s sourcing rule. This helps avoid a common mistake: treating the seller’s address, a billing address or a county average as the legal location for every transaction.
For a business, keep the address and rate result with the invoice, not in a separate spreadsheet with no transaction reference. If the customer changes the delivery address, repeat the lookup. If a rate changes, preserve the prior effective period with earlier invoices and use the new rate only when its start date applies.
State and local sales tax is easier to understand when the layers are separated. Begin with the state component, identify the local and district additions, confirm the delivery or use location and save the official source with the calculation.
