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Home/Services/Sales Tax Filing
New · 45 states · Q1 2026
Stripe + Shopify integrations · 24hr filing turnaround

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.

Free nexus assessmentState fees pass throughOne-click cancellation24-hour filing turnaround
45+ states supported Stripe + Shopify integrations State fees at cost
How it works

How it works Connect once. We handle the rest.

From nexus detection to monthly filing, end to end.

1

Connect Stripe + Shopify

One-click OAuth integration. We read transaction volume and customer state distribution; we never see your customer payment details.

2

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.

3

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.

4

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.

What we'll set up for you

A clean handoff, in four steps.

You give us the basics. We handle the state, the IRS, and the compliance clock so you can focus on the business.

01 · Name + Brand

A name that's actually available.

Real-time check against the state register, USPTO trademark database, and matching domains.

02 · State filing

Filed with the Secretary of State.

We submit your Articles, pay the state fee on your behalf, and return the stamped certificate.

03 · Federal IDs

EIN + the right tax setup.

Federal Employer ID with the IRS, plus state tax accounts when your business needs them.

04 · Stay compliant

Registered Agent + deadline tracking.

Your agent on file in every state, with every renewal and annual report tracked in one calendar.

Pricing

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

$40/mo per state
For businesses with sales tax in one state.
  • Nexus monitoring (all 45 states)
  • Registration filing
  • Monthly returns
  • Stripe + Shopify integration
  • State fees pass through at cost

Multi-state · Enterprise

$100/mo per state
For 10+ state operators with high complexity.
  • Everything in Standard
  • Per-transaction location lookup
  • Local district + city tax handled
  • Dedicated state-tax specialist
  • Audit defense included
FAQ

About sales tax filing.

What is sales tax nexus?
Nexus is the connection between your business and a state that triggers sales tax obligations. After South Dakota v. Wayfair (2018), every state can require collection based on economic activity (typically $100K in sales or 200 transactions per year), even if you have no physical presence.
What if I have not been filing in states where I should be?
We can help with voluntary disclosure. Many states offer favorable terms (reduced penalties, limited look-back) for businesses who come forward proactively. Our assessment surfaces the exposure; we handle the disclosure if you authorize.
Does this replace Avalara or TaxJar?
For many of our customers, yes. We focus on US sales tax for SMBs with Stripe / Shopify-based revenue. Avalara and TaxJar are appropriate for larger enterprises with complex ERP integrations or global tax needs.
Do you handle local + city sales tax?
Yes, on the Multi-state Enterprise tier. Some jurisdictions (Colorado, Louisiana, Alabama) have complex local tax structures requiring per-transaction location lookup. We handle this layer.
How quickly can I get started?
Free assessment runs in under 5 minutes. Full setup including state registrations takes 5-15 business days depending on which states.
Can I cancel?
One-click cancellation, any state, any time. We hand back your filing history; you can take it to another provider or self-file going forward.
Free assessment

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.

Why File.Business

Premium compliance, no service-fee markup.

Trust you can verify

SOC 2 Type II audited platform. 220,000+ businesses served. 60-day money-back on service fees. State fees passed through at cost with no hidden markup. Explicit AUP on restricted industries.

A compliance partner, not a transaction

Most providers go quiet after checkout. We auto-track every annual report, registered agent renewal, and license deadline across your entities. The Business OS dashboard keeps your compliance score visible year-round.

Premium experience competitors cannot match

Premium positioning, transparent pricing, no service-fee markup on state or federal filings. Premium positioning, transparent pricing, no service-fee markup on state filings.

Start your business in the next 5 minutes.

No state-fee markup. Pay only the state fee. 60-day money-back guarantee.

No state-fee markup 60-day money-back Cancel anytime