Sales tax, VAT and reverse charge

Go to Settings → Taxes and add the rates you need, for example "VAT 20%" or "CA sales tax 7.25%". Each line item on an invoice can carry up to two taxes, and compound taxes (tax on tax) are supported for regions such as Quebec.

When you invoice a VAT-registered business in another EU country, tick Reverse charge on the invoice. Quillstack sets VAT to 0%, prints the client's VAT number and adds the required "Reverse charge" note. The client's VAT number is checked against the EU VIES service when you save the client.

Reports → Tax summary shows tax collected per rate for any period, split into paid and unpaid invoices. Export it as CSV for your accountant.

Quillstack does not file tax returns and does not calculate US sales tax automatically by address. Ask a tax advisor which rates apply to you.