Help
Frequently asked questions.
Quick answers on accuracy, billing, integration, and where we draw the scope line.
Accuracy
How accurate are TaxQL rates?
Premium ZIP+9 geocoding is on by default for every lookup on every plan — Trial through Enterprise get the same answer, with no plan-based degradation. Rates are validated continuously against state Department of Revenue source files.
What happens if TaxQL returns a wrong rate?
If you can show TaxQL returned an incorrect rate for a specific address, we refund the API calls and investigate within one business day. We also surface the corrected rate in our weekly refresh pipeline so all customers benefit.
Our Terms of Service cap our liability at the fees you paid for the disputed calls — we are a data service, not a tax advisor, and your filing decisions remain your responsibility (see /terms).
Does every plan get the same accuracy?
Yes. Trial through Enterprise use the same premium ZIP+9 geocoder under the hood — we don't ship a "cheap plan with worse accuracy." A $99 Launch customer gets the same answer as a $999 Pro+ customer for any given address. The only thing that varies by plan is monthly lookup volume and price.
How often do rates refresh?
Weekly, from the same state Department of Revenue feeds, Streamlined Sales Tax consortium files, and Census polygons everyone in the industry uses. Weekly cadence sits comfortably inside the quarterly cadence at which sales-tax rates actually change, so your call gets the rate that's correct on the day of sale.
Billing
What's your uptime commitment?
We commit to 99.5% monthly uptime on Launch and Business tiers, 99.9% on Pro and Pro+. Service credits apply if we miss the target. See our SLA at /sla for the full commitment, credit mechanics, and exclusions.
What happens if I go over my cap?
Business, Pro, and Pro+ include an unbilled grace buffer past your cap — 2,500, 5,000, and 8,500 extra lookups respectively. It's a volume buffer, not a time window: you keep being served until it's used up, then a hard 429 with an upgrade-required response. Trial and Launch have no grace buffer.
How is Launch different from Business?
Launch is pay-as-you-grow: $99 covers 2,500 lookups plus a free second block — 5,000 lookups before any overage — then $99 per additional 2,500-lookup block. Business is a flat $599/mo for 25,000 lookups. We auto-prompt an upgrade to Business at your fifth Launch block; by around your eighth, Business's flat rate is the cheaper option.
Can I cancel anytime?
Yes. You can cancel through the customer portal at any time. Refunds are handled per our payment processor's standard policy — see the /refund page for details.
Do you offer an annual discount?
15% off across all paid tiers when you prepay annually. Up to 20% for strategic accounts (reference customers, multi-year, case-study commitments) — these are negotiated case-by-case and aren't on the public pricing page.
Integration
How do I get started?
Sign up at app.taxql.com/register to start the 14-day free trial. Card required at signup (no charge during trial); an API key is issued immediately on the customer portal.
Our SDKs and REST endpoints follow standard JSON request/response shapes — a typical migration from another tax API is changing the base URL and the auth header. The 14-day trial covers 1,000 lookups so you can run a full migration replay before committing to a paid tier.
Scope
Does TaxQL handle AutoFile (state-return filing)?
Not yet. Some leading providers bundle state-return filing; we don't. You file with your own preparer or handle it manually. It's on our roadmap.
Can I self-host TaxQL?
No. TaxQL is a hosted API service only.
Does TaxQL support Canadian provinces or international VAT?
Canada — yes, in beta. All 13 provinces and territories are live, with GST, HST, and QST resolved from the postal code and cited to CRA / provincial statute. Canadian lookups are unbilled during the beta period.
International VAT (EU, UK, and other regimes) is not supported — it's on the roadmap but not current scope. If you need that coverage today, other providers offer broader international support.