1. EU VAT (OSS)
Auto VAT by EU country + OSS? Quarterly report ready?

2. B2B reverse charge
VAT ID + VIES check? If valid: 0% + note? If invalid: block or VAT?

3. French invoices
Compliant? Customizable? 10y archive? Bulk export?

4. Non-EU
UK handling? US tax? No VAT + note?

5. Currency
EUR display + multi-currency? FX by who? Fees clear?

6. Emails
All via custom domain? Editable templates? Any limits?

7. Affiliates
EU VAT on commissions? Tax reports? Country rates?

8. Export
Full data export? Lock-in?

9. GDPR
Compliant? DPA? Data location?