Thirty per cent of the gross, before anyone counts the costs

Tax taken by the payer before the fee reaches you. The IRS states that a non-resident artist or athlete performing independent personal services at a US event will usually have 30 per cent withheld from gross income earned.

Gross is the operative word. No deduction for agents, crew, freight or travel happens first.

Because performance work carries heavy costs. A tour grosses well and nets modestly, so a charge on the top line bears very little relation to the profit.

Consider the shape of it. Where costs run at seventy per cent of the fee, a thirty per cent charge on gross can exceed the margin entirely.

So the default rate is not really a tax rate. It is a payment on account, collected before anybody knows the answer.

So price the engagement accordingly. A fee negotiated with no reference to the deduction disappoints everybody later.

Article 16 lets America tax performance income earned there, but it carves out small amounts. The carve-out applies where gross receipts for the year do not exceed twenty thousand US dollars, or the sterling equivalent.

Below that line America gives up the taxing right the article would otherwise confer. Above it, the whole amount falls within scope rather than just the excess. Both governments publish the convention and its supporting documents.

More than the fee itself, and this catches people out badly. The article measures gross receipts including expenses reimbursed to the performer, or borne on the performer's behalf. So the figure you must test is larger than the one you negotiated.

So a promoter paying your flights and hotels directly adds to your total. Nothing has reached your bank account, yet the figure moves closer to the line.

Count everything before assuming you sit underneath it. A modest fee plus serious travel can cross the threshold without anybody noticing.

No, and that is a common misreading of it. The article measures gross receipts for the taxable year or year of assessment concerned, rather than for each appearance separately. One large date and several small ones are added together.

So four small dates aggregate. A performer who would sit comfortably below the line on any single show can easily exceed it across a season.

Where receipts sit near the line, the shape of the year starts to matter. The article measures the taxable year or year of assessment concerned, so dates either side of a year end fall into different measurements.

That is a legitimate consideration rather than a trick. Nothing requires you to compress a tour into twelve months, and nothing stops you noticing where the line falls.

Not for this article, which is the point of it. The provision reaches income from personal activities as a performer, and it applies whether the business profits article or the employment article would otherwise have exempted that income.

So the label on the contract does not settle anything. A salaried member of a touring company and a self-employed soloist both sit inside the same rule.

The treaty anticipated that structure and addressed it directly. Where the income accrues to another person rather than to the performer, America may still tax it in the place the activities happen.

There is an escape, and it is demanding. That other person must establish that neither the performer nor related persons participate, directly or indirectly, in its profits.

The article spells out what participation includes. Deferred remuneration, bonuses, fees, dividends, partnership distributions and other distributions all count, which closes most of the obvious arrangements.

A Central Withholding Agreement changes the basis of the calculation. The IRS programme lets a non-resident artist or athlete request a lower rate, worked out on net income rather than gross.

Three parties sign it: the performer, a designated withholding agent, and the IRS. It takes effect once all three have signed, and not before.

So the mechanism is a budget agreed in advance. You show the costs, and the withholding reflects what the tour is actually likely to earn.

Note the sequencing carefully. The agreement has to exist before the money moves, because it cannot repair a deduction already taken.

Forty-five days before the first event on the itinerary. The application goes on Form 13930, and it must reach the IRS no later than that point.

The IRS is explicit about what happens afterwards. It does not process applications submitted after the 45-day deadline.

So this is a booking-time task, not an accounting-time one. In our practice the agreement is lost to the calendar far more often than to the substance.

A performer whose affairs are already in order, broadly speaking. The IRS requires that all necessary returns have been filed, and that arrangements exist to pay any tax due. Neither condition is onerous, but both take time to put right.

A designated withholding agent must also be in place. Agreements are available for all events, so the limitation is on the applicant rather than on the type of engagement.

Expect confirmation quickly. The IRS says it will confirm receipt of a timely application within seven days of it being sent.

Anyone with control over the income, which is wider than most contracts assume. The IRS treats a person who has control over what a non-resident artist or athlete earns from a US performance as a withholding agent.

Routing the money differently does not shift that. Payments made to an agent, a manager or a representative sit inside the same rule.

The IRS puts the point bluntly. No document can override the responsibility unless an agreement is in effect.

So settle the point in writing with the promoter early. Clarity about who deducts avoids an argument on the night.

Deduct, deposit and report. Tax withheld goes through the Electronic Federal Tax Payment System rather than by cheque.

That requires some setup. The agent needs an employer identification number to enrol as a business and make the deposits, and our guide to getting an EIN covers the routes available.

A statement of what was paid and what came off. The agent reports the payment and the tax on Form 1042-S, and our guide to reading one explains what to do with it.

Keep it carefully. It evidences both the income for your UK return and the American tax you may be reclaiming.

Yes, in practice, and the IRS advises getting one promptly. It suggests that a non-resident artist or athlete performing personal services should apply for a social security number after entering the United States.

That identifier matters for the filings that follow. Our guide to a social security number from abroad covers how the application works.

Yes, and the agreement itself insists on it. The terms of a Central Withholding Agreement include a requirement to file a federal income tax return on time for the year it covers.

That is also how over-withholding comes back. Where the deduction exceeded the real liability, the return is the route to recovering the difference.

So treat the return as part of the tour budget. It is the step that turns an over-deduction back into cash.

Yes, as worldwide income for a UK resident, and the two charges sit alongside each other. The treaty hands America a taxing right over the performance income rather than removing Britain's own right to tax it.

Relief then arrives through the credit mechanism. You report the gross in Britain and claim credit for the American tax, capped at what the treaty actually permitted America to charge.

So keep the paperwork from every date. US withholding on UK performers is easy to evidence at the time and awkward to reconstruct a year later.

Take an illustrative case. A British quartet plays three American festivals for 45,000 dollars in total, and the promoters cover 9,000 dollars of flights and accommodation.

Gross receipts therefore reach 54,000 dollars, well above the treaty floor. Without an agreement the default rate applies to the whole of it.

Costs run to 35,000 dollars, so the real profit is far smaller than the gross. An agreement filed in good time would have based the deduction on that narrower figure instead.

Notice what drove that outcome. The covered travel pushed the total past the floor, and the timing closed the other route.

The commonest is treating the treaty floor as a per-show figure rather than an annual one. The second is forgetting that covered travel counts towards it.

After those comes the missed deadline, which is final rather than negotiable. A tour booked eight weeks out leaves very little room once contracts take their usual time.

A fourth is assuming a contract clause can move the obligation onto somebody else. It cannot, unless an agreement is actually in place.

First we total the real gross, including the costs a promoter will carry, because that single figure decides whether the treaty solves it. Then we model what an agreement would deliver against the default.

Where the agreement is worth having, we work to the 45-day clock rather than to the tour schedule. Start with our treaty relief service, or reach us through our contact page.