Free tools for founders selling across borders

Selling SaaS Across Borders? Know Your Tax.

You're in one country, your customer's in another — what tax do you charge? Free calculator and invoice generator for indie founders on Stripe.

80+
Countries & States
100%
Free. No Signup.
30 sec
To Your Answer

Cross-Border Tax. Sorted.

Know what tax to charge, what to write on the invoice, and when to register — built for founders on Stripe.

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Cross-Border Tax Calculator

You're in X, your customer's in Y — get the exact tax rate, registration requirements, and invoice wording.

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Cross-Border Invoice Generator

Correct reverse-charge wording, EU OSS formatting, and PDF export. Every cross-border scenario covered.

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Threshold Tracker

Every EU country's VAT registration threshold in one place. Know when you need to register.

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VAT Number Checker

Verify any EU VAT number against the official VIES database. Essential for B2B reverse charge.

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I'm in X, My Customer's in Y — What Do I Charge?

Select where you're based and where your customer is. Get the exact tax rate, registration rules, and invoice wording — in 30 seconds.

Covers all 27 EU member states, UK, and US state sales tax
Knows which US states tax SaaS (and which don't)
Handles B2B reverse charge, OSS thresholds, and export rules
Tells you exactly what to write on your invoice

Cross-Border Tax Check

Your VAT Breakdown

EU VAT Rates at a Glance

Standard VAT rates for digital services across all 27 EU member states. Updated for 2025/2026. US state sales tax info is in the calculator above.

Country Standard Rate OSS Threshold Notes

From Confused to Compliant in 4 Steps

01

Enter Your Details

Tell us where you're based, where your customer is, and the sale amount. Takes 15 seconds.

02

Get Your Tax Rate

We apply the correct rules — B2B reverse charge, B2C destination principle, OSS thresholds, US state SaaS taxability — automatically.

03

See the Breakdown

Net amount, tax owed, which country to pay it to, whether you need to register, and what to write on your invoice.

04

Generate Invoice

Create a properly formatted, tax-compliant invoice with the correct legal wording for your scenario. Download as PDF.

What's Live. What's Next.

We're building in public. Here's where we are and where we're headed.

✅ Live Now
Free Tools

Use them today, no signup needed.

  • Cross-border tax calculator (EU + US + UK)
  • Cross-border invoice generator + PDF
  • EU VAT number checker (VIES)
  • All 50 US states SaaS tax rules
  • 27 EU country VAT rates table
  • The Indie Hacker's Guide to EU VAT
  • B2B reverse charge detection
Try the Calculator ↑
🗺️ On the Horizon
Pro Plan

Paid features for growing founders.

  • Stripe / Lemon Squeezy integration
  • Auto sales-by-country dashboard
  • VAT threshold breach alerts
  • Quarterly VAT summary reports
  • OSS filing preparation
Get Notified →

Tax Explained Like You're a Founder

Cross-Border Tax. Finally Simple.

I'm a solo founder building the cross-border tax toolkit I wish existed. Join the journey — get updates on new tools and tax tips that save you real money.

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