Where the rates come from
Pavr ships no tax rates. You add the authorities you collect for, the state, the county, the city, a transit district, type each one's rate and the day it starts, and stack them into a tax group for each place you work. When a county adds a point, you add the new rate with its start date. The old one is never edited, so last spring's invoice still shows the rate it went out with.
The job site picks the group
A property manager in Dallas with lots in Dallas, Plano and Frisco gets three tax groups, one per lot. The billing address never decides the rate. When you set a job's address, Pavr checks the city, the ZIP and the county against your groups in that state and fills in the one that fits; if two fit equally, it asks. A taxable line with no group won't finalize. Pavr won't guess a rate, and it won't quietly charge zero.
Four ways to tax a line
Every service in your service library carries how it's taxed, and any single line can differ from its service: not taxed, where every new service starts, because in most states you pay the tax on your materials and charge none on lump-sum work; taxed on the full price; taxed on materials only; or a gross receipts tax passed on as its own line. Deposits, late fees and retainage releases are never taxed.
Customers who don't pay tax
A certificate is the only exemption. Add it to the customer with the reason, the number, the states it covers, the dates, and a photo or PDF of the paper, for all of the customer's jobs or for one. A certificate for Texas doesn't zero the tax on a job site in Oklahoma, and an expired one doesn't zero anything: Pavr charges the tax and warns you, so you can ask for a new one before the invoice goes.
Frozen on the invoice
Proposals never put tax in the total; the customer reads "Applicable sales tax will be added to your final invoice." When you finalize the invoice, Pavr copies the group, each rate, how each line is taxed and any certificate onto it, and a rate change next month never touches it. The customer sees one Sales tax line with the breakdown by authority under it, and a void reverses at the rates the invoice went out with.
Warnings, not advice
A warning never stops an invoice or changes a number. Pavr tells you when a job site is outside your home state or in a state you've entered no registration for, when a line is taxable though its service isn't, and when a certificate has expired or doesn't cover the job site's state. It names a state's own rule only where the rule is well known: New York, West Virginia, Texas, Washington, New Mexico, Hawaii, Arizona and Florida. A job anywhere else hasn't been cleared. It just isn't one Pavr says anything about.
Into your books
If you connect QuickBooks Online, each tax group picks the QuickBooks tax code it goes to your books with: you make one combined rate in QuickBooks for each group and pick it in Pavr. Before an invoice with tax goes over, Pavr checks that the code is still there at the same rate, that the job site has a street address, that both sides agree on whether the customer is exempt, and that the lines' tax adds up. Then it sends the invoice with its tax and its code, reads back what QuickBooks kept, and flags the invoice in Settings if the total, the tax or the code came back different. If QuickBooks swapped the code, Pavr says so, because the total can still match while the tax is credited to the wrong agencies. The other accounting software Pavr connects to gets the same care.
When you file
Record where you're registered, and the reports read the way a return asks: a liability report by state and authority, issued and collected side by side for cash-basis filers; a filing summary with one state's boxes for one period and your registration number beside them; and an itemized CSV, a row per invoice line, for your accountant or filing service. Each material in your service library can record the state you buy it in and whether you paid tax on it. Pavr doesn't register you, doesn't file for you and doesn't remit anything. You copy the numbers onto the return.
What you take on
Before anything is taxed, an owner accepts this, and it stays at the top of every sales tax page:
You're responsible for your sales tax. Set up every rate and tax group you charge, keep them current, decide which work is taxable, collect exemption certificates, and register and file in every state where you work. Pavr calculates with what you enter and doesn't give tax advice.
Not sure what's taxable on your work? Ask your accountant or your state's department of revenue. Pavr can carry the answer onto every invoice; it can't give it.
