Roblox DevEx taxes in the UK

The £1,000 that changes everything

The trading allowance is the most useful thing in UK tax law for a young creator, and most have never heard of it. If your total gross trading income across the tax year is £1,000 or less — the threshold includes the figure itself — you generally do not have to tell HMRC about it at all.

Two qualifications. It covers all your trading income together, not just Roblox: sell art commissions on the side and both count toward the same £1,000. And there are statutory exceptions where the relief does not apply, including income from a company you or a relative are connected to.

Note that it is gross, not profit. It is measured against what came in, before you deduct anything — so a creator who received £1,200 and spent £400 on assets has gross income of £1,200 and is over the line, even though their profit is well under it.

Above the threshold you get a choice, and it is worth thinking about rather than defaulting. You can deduct your actual expenses in the normal way, or you can deduct the £1,000 allowance instead of expenses. Whichever is larger wins. For a creator whose costs are low — a few Creator Store purchases and nothing else — the allowance is often the better deal, and it removes the need to itemise expenses.

It does not remove the need to keep records. You still have to be able to show what came in, so keep the DevEx payout history regardless of which route you take. What the allowance saves you is receipt-by-receipt expense tracking, not evidence of income.

Self Assessment: the three dates

The UK tax year runs 6 April to 5 April, which catches out anyone who assumes it follows the calendar. Miss the year boundary and you file for the wrong period.

Payments on account: the bill nobody warns you about

If your first Self Assessment bill is £1,000 or more, HMRC generally asks for payments on account toward the following year at the same time. In practice that means the January payment can be one and a half times what you expected: the full amount owed for the year just ended, plus half of what HMRC estimates you will owe for the year in progress. The other half falls due on 31 July.

This catches out almost every first-time filer, because it turns a bill you had budgeted for into a noticeably larger one. It is not an extra tax — it is the same tax, collected earlier — but knowing it is coming is the difference between an inconvenience and a crisis. If your income has since fallen, you can apply to reduce the payments rather than paying an estimate you will only reclaim later.

What you actually pay

Two separate things, with different starting points, and conflating them is the usual source of a nasty surprise.

Income tax starts above the £12,570 personal allowance. In England, Wales and Northern Ireland that is 20% to £50,270, 40% above that, and 45% above £125,140.

If you live in Scotland, those bands do not apply to you. Scotland sets its own income tax, and it is genuinely different — six bands instead of three, starting at a lower threshold, with a 19% starter rate below the basic rate and higher rates above it. Most guidance written for "the UK" quietly means England, Wales and Northern Ireland, including, until this paragraph, ours.

National Insurance, the personal allowance and the trading allowance are UK-wide and unaffected — it is only the income tax bands that diverge.

For most creators reading this the answer is zero either way, because the allowance covers the income. But the allowance applies to all your taxable income, not just DevEx — if you also have a job, it is likely already used up, and creator income starts being taxed from the first pound.

National Insurance is the one that catches people, and the rules changed recently enough that a lot of the guidance you will find is out of date. It also has an age floor that most creator guidance omits: mandatory National Insurance starts at 16. A 14-year-old creator has income tax and Self Assessment obligations, but no NI liability at all.

From 16, Class 4 applies to profits above £12,570, at 6% up to £50,270 and 2% beyond.

Class 2 is where the outdated advice lives. Where profits are £7,105 or more, it is now treated as paid — your National Insurance record is protected and you pay nothing for it. Below that level you can choose to pay it voluntarily at £3.65 a week, which is worth considering if you want the qualifying year on your record, and pointless if you do not.

Making Tax Digital, if you get big enough

Self Assessment is not the end state. HMRC is phasing in Making Tax Digital for Income Tax, which replaces one annual return with digital record-keeping and quarterly updates.

It is driven by qualifying income — total turnover from self-employment and property before expenses, taken from your previous year's return. Note that this is gross, so the threshold arrives sooner than a profit-based one would.

• Qualifying income over £50,000: required from April 6, 2026
• Qualifying income over £30,000: required from April 6, 2027

For most creators reading this, that is comfortably out of reach and nothing changes. For anyone approaching it, the practical implication is worth planning for early: quarterly submissions need compatible software and continuous record-keeping, which is a different habit from assembling everything each January.

If the creator is under 18

There is no minimum age for a UK tax obligation. A 14-year-old with income over the trading allowance is in Self Assessment exactly as an adult would be, with their own Unique Taxpayer Reference and their own return.

The allowances are theirs too. A young creator has the same £12,570 personal allowance and the same £1,000 trading allowance as anyone else, which in practice means most under-18 creators owe no income tax at all — the question is whether National Insurance and the filing obligation apply, not whether income tax does.

A parent or guardian can register the child, manage the account and file the return on their behalf. What they cannot do is fold the income into their own return: it is the child's income, on the child's UTR. HMRC does not publish a dedicated guide for under-18s, so the practical route is simply to register in the normal way, in the child's name. The parent-side version of this, in more detail.

The US side: you should be paying nothing

This is where UK creators do better than almost anyone, and where the largest avoidable loss sits.

From November 1, 2026, Roblox will treat DevEx payments as royalties. The US–UK double taxation treaty sets the withholding rate on royalties at 0%. Nothing should be deducted before the money reaches you.

That rate is not automatic. It has to be claimed on a W-8BEN, and the claim only stands if the form carries a taxpayer identification number — for a UK creator, that is normally your National Insurance number or UTR — together with an explicit treaty claim citing the royalties article.

Two failure modes, and they are not the same:

• No valid tax information at all. Up to 24% backup withholding on your entire payout — not just the US-sourced part. This is the worst case and the easiest to avoid.
• A valid W-8BEN, but no successful treaty claim. Withholding of 0%–30% applies, and only to the portion of your earnings sourced from US players. Better than the first case, and still more than the 0% you are entitled to.

Getting from either of those to 0% is the highest-value ten minutes available to a UK creator. Line by line.

If tax was withheld before you fixed the form, it is recoverable — but through the US system, not by asking Roblox. Keep the Form 1042-S you receive.

A 0% US rate does not mean tax-free

This is the misreading worth heading off. UK residents are generally taxed on their worldwide income, so DevEx money is UK-taxable whether or not the US took anything from it. Getting the US rate to 0% removes a deduction at source; it does not remove the income from your Self Assessment return.

Report it in sterling, converted at a reasonable exchange rate for the date received, and keep the working. Roblox pays in dollars and HMRC wants pounds, so some conversion judgement is unavoidable — being consistent about the method matters more than which defensible method you pick.

And if US tax was withheld, you are not stuck paying twice. Foreign Tax Credit Relief lets you set foreign tax already paid against your UK bill on the same income, generally capped at the UK tax due on it. The evidence is the Form 1042-S, which is why keeping it matters. The order that causes trouble is filing the UK return first and thinking about the US withholding afterwards.

Getting paid in pounds

DevEx pays in US dollars. Getting them into a UK bank account costs something, and the cost is not the payout fee.

The transfer fee itself is small — around £1 equivalent for a local transfer, and PayPal is capped low enough to be competitive on larger amounts. What is not small is currency conversion, at 1.9% to 3.0% of the entire payout with no cap. On £2,000 that is up to £60, dwarfing every method fee combined.

So the question worth asking is not which payout method is cheapest, but which route gets dollars into sterling with the least lost in the middle. Three realistic ones:

The pattern is consistent: the conversion spread, not the transfer fee, decides which route wins, and it only starts to matter above a few hundred dollars a month. Below that, take whichever is least hassle — the difference is a couple of pounds and not worth managing another account for. The full method comparison, with all five rails.

Sources

Every figure on this page is for the 2026 to 2027 tax year and was checked against the primary source on August 23, 2026. UK figures change each April; if the verification date above is more than a year old, treat the numbers as stale.

• HMRC — tax-free allowances on property and trading income
• HMRC — Self Assessment deadlines
• HMRC — payments on account
• HMRC — self-employed National Insurance rates and the age at which it starts
• HMRC — Income Tax rates and Scottish Income Tax
• HMRC — Making Tax Digital for Income Tax
• HMRC — tax on foreign income, when you are taxed twice
• Roblox — DevEx tax information, for the royalty effective date and W-8 requirements
• IRS — tax treaty tables