902 treaties · 71 countries · 30 tax authorities
Stop Overpaying
Withholding Tax
Look up treaty rates before you file your W-8BEN. Compare jurisdictions before you route a payment. Know the exact article and rate — sourced from official government publications, not secondhand data.
Every rate traced to IRS, HMRC, CRA, and 27 more official sources. Not tax advice.
Built for tax professionals
30 country networks indexed
Tax Advisors
Quick treaty rate lookups for client engagements. W-8BEN guidance, LOB analysis, and source-cited rates you can rely on.
Corporate Treasury
Determine the correct withholding rate on intercompany dividends, royalties, and interest before processing cross-border payments.
Wealth Managers
Understand dividend withholding impact on international portfolios. Estimate unreclaimed WHT and optimize after-tax returns.
Free Tools
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W-8BEN Assistant
PopularGet the exact treaty article and rate for your W-8BEN
W-8BEN-E (Entities)
ProEntity guidance with LOB provision identification
WHT Calculator
Calculate withholding and savings for any treaty pair
Treaty Comparison
ProCompare up to 5 jurisdictions side by side
Reclaim Estimator
How much WHT are you leaving on the table?
Rate Search
Search {treaties.length} treaties by country name
Featured Treaties
Major bilateral treaties across networks
United Kingdom – United States
Canada – United States
Germany – United States
Australia – United States
Japan – United States
Australia – Japan
30 Country Networks
Each network covers all bilateral treaties where that country is a party. Rates sourced from the official tax authority.
All 71 Countries
Every country that appears in at least one treaty across all networks.
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902 treaties. 71 countries. Every rate from an official source. Free forever for basic lookups.