Sales tax, filed automatically, in every state where you sell. Stop hand-filing returns.
If you sell across state lines, you have sales tax obligations in places you have never visited. We monitor your nexus thresholds through your existing Stripe and Shopify accounts, register you where required, calculate what you owe, and file every return. One dashboard, one invoice, every state.
How it works Connect once. We handle the rest.
From nexus detection to monthly filing, end to end.
Connect Stripe + Shopify
One-click OAuth integration. We read transaction volume and customer state distribution; we never see your customer payment details.
Free nexus assessment
Within 60 seconds we tell you which states you already owe in and which states you are approaching threshold for. Free, no signup required.
Authorize registration + filing
Pick the states you want us to handle. We file the registrations within 5 business days; first returns due 30-60 days later depending on state schedule.
Monthly returns + audit support
We file every required return on the schedule each state requires. State fees pass through at cost. Audit support included on Multi-state Standard tier and above.
Every part of sales tax compliance. In full.
Nexus monitoring
Real-time tracking of your sales volume in every state. The moment you cross a threshold, we alert you and pre-fill the registration package.
Multi-state registration
We file the sales tax registration in each state where you have nexus. State fees pass through at cost; no service markup.
Monthly + quarterly filing
We file every required return on the schedule each state requires (monthly, quarterly, or annual). No surprise frequency changes.
Tax calculation
Per-transaction calculation pulled from your Stripe and Shopify data. Cross-checked against state-specific exempt products, holiday tax-free periods, and local district rates.
Audit support
If a state audits, we provide the filing record and stand behind every return we filed. Audit-defense service available as add-on.
De-registration
Stop selling in a state? We file the withdrawal so you stop receiving filing notices and unnecessary registration renewals.
Honest per-state pricing.
You only pay for states where you have active filing obligations. Stop selling in a state, stop paying for it.
Single state
- Nexus monitoring (all 45 states)
- Registration filing
- Monthly returns
- Stripe + Shopify integration
- State fees pass through at cost
Multi-state · Standard
- Everything in Single state
- Quarterly + annual returns where required
- Audit-trail documentation
- Email + dashboard alerts
- Multi-state portfolio dashboard
Multi-state · Enterprise
- Everything in Standard
- Per-transaction location lookup
- Local district + city tax handled
- Dedicated state-tax specialist
- Audit defense included
About sales tax filing.
What is sales tax nexus?
What if I have not been filing in states where I should be?
Does this replace Avalara or TaxJar?
Do you handle local + city sales tax?
How quickly can I get started?
Can I cancel?
The File.Business Promise
If we miss a filing deadline on a service you pay us to manage, we pay the state penalty. If you change your mind in the first 60 days, we refund our service fee in full. Your data stays yours, always.
Find out where you owe sales tax.
Connect Stripe or Shopify in 60 seconds and we will tell you which states you already owe in and which you are approaching threshold for.
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