Tool · Withholding tax
Cross-border withholding tax calculator
For payments between businesses in different countries, such as service fees, royalties and interest. Not for employee or payroll tax.
Last updated: October 2026
Work out the numbers
Invoice for
- You receive
- Withheld and paid to the tax authority
Invoice amount = amount you want to receive ÷ (1 − withholding tax rate). Check that your contract allows you to gross up.
Short by
- You received
- Unexplained shortfall
What to do next
- Ask your customer for the withholding tax certificate or receipt. You’ll usually need it to claim a credit at home.
- Check the rate against the tax treaty between your two countries. If too much was withheld, you may be able to reclaim the difference.
- Ask your tax adviser whether you can claim a credit against your tax at home, and how much.
- For future invoices, before you quote.
Illustrative only. These figures don’t take account of your specific facts, the applicable tax treaty or local rules. This is not tax advice.
Gross up a payment works out what to invoice so you still receive your full fee after withholding tax. Invoice amount = amount you want to receive ÷ (1 − withholding tax rate). Check that your contract allows you to gross up.
Check a payment I received compares what arrived with what you invoiced. It shows whether the shortfall matches a common withholding tax rate, or is more likely to be bank charges or an exchange rate difference.
Want to see why the numbers work this way? Watch Withholding tax rates in action: grossing up and What happened to my margin?
Cross-border tax software for businesses that sell services internationally.
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