Treaty withholding rate lookup — free calculator
Works out what a payment actually costs after withholding at the rate you enter, and what the credit position looks like at home.
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Works out what a payment actually costs after withholding at the rate you enter, and what the credit position looks like at home.
Enter your figures
An estimate for planning only. Rates and thresholds used here are the assumptions stated on this page; we confirm every figure against the issuing authority for your own tax year before anything is filed.
How the estimate is built
Withholding is applied by the payer at the payment, on the strength of the documentation it holds — so the rate is a paperwork question before it is a tax question. Your home country then taxes the same income and gives credit up to its own tax on it, which means a withholding rate above your home rate leaves credit that carries or is lost depending on the category. Confirm the treaty rate against the treaty in force for your year before relying on it.
Where to go from here
A calculator narrows the range; it does not settle a filing. Describe the situation in your own words; translating it into forms is our job.
Checked and signed off for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. This is general information rather than advice about your file — a short call is the way to get the second.
US expat tax calculator — what this page covers
The subject here is treaty withholding rate lookup, which is what people mean when they search for US expat tax calculator. This page covers who it applies to, the filings it produces, and the fixed fee agreed before work begins.
Why clients bring treaty withholding rate lookup calculator to us
Filed with the authority, not just prepared
The engagement runs to submission and to the correspondence that follows it, including the queries that arrive months later.
The reporting penalties get named early
The heaviest exposure on a cross-border file is usually a disclosure form, not the tax. We identify which ones apply before a deadline turns into a penalty.
The order of filing is planned, not improvised
Which return goes first decides whether relief can be claimed at all. That sequence is worked out before anything is submitted.
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Meet us in person in India, the USA, Canada and the UAE, or send everything through the secure portal — the same process either way.
Files that look like this one
Statutory rate applied because the residence certificate had lapsed
A recipient noticed that the amount landing in the bank had fallen between quarters while the gross invoice was unchanged. The certificate of residence held by the payer had expired at the year end and the payer had reverted to the statutory rate. The work established the recipient's residence position for the period, obtained fresh certification and provided it to the payer with the documentation the source country's relief-at-source procedure requires. The engagement produced the reduced rate on subsequent payments and a filed claim for the difference already withheld.
Payment split between royalty and service before invoicing
A software company invoiced a foreign customer a single annual amount covering a licence and the implementation work its own staff performed. The payer withheld at one rate on the whole. The work separated the two elements, established which treaty article each fell under and whether the services part was taxable at source at all, then rebuilt the contract and the invoice format to reflect the split. The engagement produced an allocation supported by the underlying time records and a revised withholding position applied from the following invoice onwards.
Refund claim run against the source country after over-withholding
Tax had been withheld at the statutory rate on several payments across prior years, and the payer would not adjust retrospectively. The work went to the source country instead, establishing the recipient's residence for each period, assembling the payment evidence and filing under the refund procedure that jurisdiction operates. The engagement produced a recovered withholding and a written note of the claim deadline for each remaining period, so the last open year was filed before it expired rather than discovered afterwards.
Credit position modelled before a licence agreement was signed
A group was negotiating a licence between two of its companies and wanted to know what the arrangement would actually cost before committing to it. The work modelled the payment under the rate the payer would apply, the tax the recipient would face at home, and the credit available against it. It showed that the structure as drafted left part of the withholding unusable in the year it arose. The engagement produced a written comparison of the alternatives considered and the reasoning behind the one adopted.
Withholding above the home rate left an unusable credit
A consultant receiving payments from two countries found the tax at home larger than the relief on offer had suggested. Withholding in one country exceeded the home tax on the same income, so part of the credit had no tax to sit against. The work established the income category, whether the excess could be carried to another year, and whether the rate applied at source had been correct to begin with. The engagement produced an amended return for the year the rate was wrong and a projection of the carryforward position.
Payer documentation rebuilt across several group companies
A payer making regular payments to affiliates and suppliers in several countries held no consistent record of why each rate had been applied. The work reviewed each recipient, identified which certifications were held, which had lapsed and which had never been obtained, and set out what each source jurisdiction requires before a reduced rate can be applied. The engagement produced a payer file organised by recipient, with the supporting documents and their renewal dates, and a rate on each payment that can be explained if it is questioned.
Canadian Pension Paid Abroad and Taxed at the Flat Rate
Pension and annuity payments to a non-resident carry a flat withholding that often exceeds what a return would produce. The alternative filing is elective, and whether it helps depends on the total income for the year rather than on the payment alone.
Read how this one runsTreaty Relief Claimed on a Cross-Border Estate
The estate article can extend a proportionate credit where the two systems would otherwise both tax the same asset. Claiming it requires a valuation and a disclosure the estate may not expect to make.
Read how this one runsAll case studies — every published engagement in one place.
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Performance income is taxed where earned — Regulation 105 in Canada, withholding agreements in the U.S. — with special treaty articles overriding the usual rules.
Performance income is taxed where the performance happens, and the deduction is usually taken at source on the gross fee before expenses. Recovering the difference is a filing exercise in the other country, and it only works if the tour, the residency and the withholding certificates were documented while the work was being done.
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