Sales tax · We look it up with you
Find your exact sales tax rate — the right way.
We could show you a sales tax rate calculator. We won’t — because rates change constantly and depend on the exact delivery address, not just the state, so a static lookup is wrong as often as it’s right. Instead, a Certified ProAdvisor finds your exact current rate and your nexus obligations with you on a free call. A wrong rate is worse than no rate.
Why there’s no live rate box here: U.S. sales tax is set at state, county, city, and special-district levels and changes throughout the year, and the correct rate depends on the precise ship-to or point-of-sale address — ZIP codes routinely span multiple rates. The harder question is usually nexus: which states you’re even obligated to collect in. Rather than publish numbers that go stale, a Certified ProAdvisor pulls your exact current rates from authoritative sources and reviews your nexus with you. Independent firm — not Intuit. This is general information, not tax advice.
TechBrot Inc. · independent Certified QuickBooks ProAdvisor firm — not affiliated with Intuit Inc.
Sales tax rates & nexus, in five questions.
What is my sales tax rate?
There’s no single answer without your exact address: the rate is the combined state, county, city, and special-district rate at the precise location of the sale, and one ZIP code can contain multiple rates. Rates also change through the year. The reliable way to get it is to pull the current rate for your specific address from an authoritative source — which a ProAdvisor will do with you on a free call.
Why not just use a ZIP code lookup?
Because ZIP codes don’t map cleanly to tax jurisdictions — a single ZIP can span several combined rates, and a ZIP-only lookup can return a rate that’s close but wrong. Under-collecting even slightly creates liability and audit exposure, so the correct rate is determined by full address and transaction date, not ZIP alone.
What is sales tax nexus?
Nexus is the connection that obligates you to register, collect, and remit sales tax in a state — either physical presence (office, employees, inventory) or economic nexus (sales above a state’s dollar or transaction threshold). Since the 2018 Wayfair decision, economic nexus means you can owe sales tax in states where you have no physical presence at all.
Do I have to collect sales tax in every state?
No — only in states where you have nexus. Determining that is the real work: it depends on where your customers are, your sales volume, and what you sell. A nexus review maps exactly where you’re obligated so you collect where you must and don’t over-collect where you needn’t.
How does TechBrot help with sales tax?
On a free call, a Certified ProAdvisor pulls your exact current rates from authoritative sources and reviews your nexus footprint. Our sales tax compliance engagement then handles registration, collection setup, and multi-state filing. We’re an independent firm — not Intuit — and filing is coordinated with your CPA where needed.
Why a live rate box would mislead you.
A sales tax rate looks like it should be a simple lookup. It isn’t. The rate that applies to a sale is the combined state, county, city, and special-district rate at the exact location of the sale — and in many places a single ZIP code contains more than one combined rate. Type in a ZIP and you can easily get a number that’s close but wrong, and ‘close’ is what triggers under-collection and audit exposure.
Rates also change throughout the year as jurisdictions adjust them. A number we hard-coded today could be out of date within a quarter. Holding ourselves to the same honesty standard as the rest of this site, we’d rather not publish a figure we can’t guarantee is current and correct for your address.
And the rate is usually the smaller question. The one that actually creates risk is nexus: which states your activity obligates you to register, collect, and file in. Economic-nexus thresholds mean you can owe sales tax in states you’ve never set foot in. That’s a judgment call about your specific footprint — exactly the kind of thing a person should look at with you, not a box on a web page.
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Four things that decide what you owe.
How a combined rate stacks, in five real states.
The rate on an invoice is the sum of every layer that applies at the delivery address. Five states from our own verified state pillars show why that sum cannot be read off a ZIP code or a state name:
- Louisiana — 5.00% state, 63 parish systems on top. Local rates average 5.13%, for a 10.13% combined average, the highest in the country; local government charges more than the state does, and the parish is decided by where the customer takes delivery.
- Wisconsin — 7.9% inside the City of Milwaukee, 5.9% in the rest of the county. The 2% is a city tax and the 0.9% a county tax, so a customer in Wauwatosa or West Allis is in Milwaukee County but not in the city. A file that resolves rates by county gets every one of those wrong.
- Pennsylvania — 6% statewide, 7% in Allegheny County, 8% in Philadelphia. Three rates, decided by where the sale is sourced.
- Minnesota — 6.875%, not the 6.88% rate tables round to, plus a full extra point across the seven-county Twin Cities metro since October 2023, by county line and on a destination basis. Across a year the rounding alone stops the liability account tying to the return.
- Alabama — 4.00% state, 5.46% average local. The jurisdiction is more than half the liability; an approximated local rate is not a rounding error.
And in six states the question is not the rate at all. Hawaii, New Mexico, Delaware and Washington tax the seller on gross receipts rather than the customer on a sale — owed whether or not it was passed on, and reaching services; Oregon and New Hampshire have no sales tax but tax business activity or profit instead. The state-by-state quirks reference carries one rule like this for each of 35 states.
Before the rate: are you even obligated in that state?
The rate only matters in states where you have nexus. Since South Dakota v. Wayfair (2018) that can arise from sales volume alone — $100,000 into a state over the previous or current calendar year in most of them, $500,000 in California, New York and Texas, with a transaction test still in force in sixteen states and DC. Physical presence — an employee, inventory, a contractor — creates it regardless of volume.
Unlike a rate, a threshold can be published honestly: it is one number per state, it changes on a known date, and it can be dated and sourced. So that part is a tool: the sales-tax nexus checker reads your sales into any state against its published threshold, names the measure and the period, and says whether marketplace sales count. Run it first; then get the rate for the states where the answer is “over.”
Where to go next.
Questions about sales tax rates.
Why doesn’t this page have a rate calculator?
Where do correct rates come from?
Is this tax advice?
How do I know if I have economic nexus somewhere?
What happens if I’ve been collecting the wrong rate?
Does QuickBooks Online’s automated sales tax get the rate right on its own?
Why do some states have no rate to look up?
Is TechBrot affiliated with Intuit?
Get it right, not approximately right
Get your exact rate and a nexus check.
On a free 30-minute call, a Certified ProAdvisor pulls your current rates from authoritative sources, reviews where you have nexus, and shows you what collecting and filing correctly looks like. No hourly billing, no obligation. Filing is coordinated with your CPA where needed.