If your country requires you to withhold taxes from payments to Anthropic, you must still pay Anthropic the full contracted amount on top of the taxes you remit to your government, including any taxes owed on that additional payment itself.
This analysis describes what Anthropic's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology
The gross-up obligation means that in jurisdictions with withholding tax requirements, the Customer's actual cost of using the Services will exceed the listed fee; the obligation compounds because it applies to any taxes on the gross-up payment itself.
Business customers in countries with withholding tax requirements on cross-border service payments must pay Anthropic the full contracted fee plus an additional gross-up amount to cover any withholding, including taxes on the gross-up itself; this can materially increase the effective cost of the Services above the published rate.
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"Fees do not include any taxes, duties, or assessments that may be owed by Customer for use of the Services ("Taxes"), unless otherwise specified in the applicable invoice. Customer is responsible for remitting any necessary withholding Taxes to the relevant authority on a timely basis and providing Anthropic with evidence of the same upon request. For clarity, Customer must pay Anthropic the amount ("Gross-up Payment") that will ensure that Anthropic receives the same total amount that it would have received if no such withholding or reduction by Customer had been required (taking into account any and all applicable Taxes (including any Taxes imposed on the Gross-up Payment)).— Excerpt from Anthropic's Anthropic Commercial Terms
REGULATORY LANDSCAPE: This provision engages international tax treaty law, domestic withholding tax statutes, and OECD transfer pricing guidelines where applicable. The obligation to remit withholding taxes and provide evidence to Anthropic upon request is consistent with standard cross-border service payment requirements in many jurisdictions. The gross-up obligation itself is a contractual mechanism rather than a tax law requirement and its enforceability depends on the governing law and any applicable treaty provisions. GOVERNANCE EXPOSURE: High for customers in jurisdictions with material withholding tax obligations on cross-border digital service payments. The compounding structure (gross-up on the gross-up) can create a significantly higher effective cost than the published fee, particularly for customers in markets with high withholding tax rates. JURISDICTION FLAGS: Customers in markets with statutory withholding tax requirements on cross-border service payments, including many Latin American, Asian, and African jurisdictions, face the most direct financial exposure. Where applicable tax treaties reduce withholding rates, the agreement states the parties will collaborate in good faith to implement reductions, but the baseline obligation is the full gross-up. CONTRACT AND VENDOR IMPLICATIONS: Finance and procurement teams should model the effective cost of service including gross-up obligations before committing to the standard pricing terms. The agreement places the full economic burden of withholding taxes on the Customer, which is a common but not universal commercial practice in cross-border software and API agreements. COMPLIANCE CONSIDERATIONS: Tax and finance teams should identify applicable withholding obligations in their jurisdiction, assess applicable tax treaty relief, and document compliance with the requirement to provide evidence of withholding remittance to Anthropic. The gross-up structure should be flagged in budget planning and vendor cost assessments.
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The gross-up obligation means that in jurisdictions with withholding tax requirements, the Customer's actual cost of using the Services will exceed the listed fee; the obligation compounds because it applies to any taxes on the gross-up payment itself.
Business customers in countries with withholding tax requirements on cross-border service payments must pay Anthropic the full contracted fee plus an additional gross-up amount to cover any withholding, including taxes on the gross-up itself; this can materially increase the effective cost of the Services above the published rate.
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