Living in Edinburgh costs more in British tax and can save you American tax

Figures relate to tax year 2025-26 (UK) · 2025 (US)

You took a job in Edinburgh and your take-home pay came out lower than a colleague doing the same work in Manchester. That is not a payroll error.

Scotland sets its own bands and rates on earnings, and they differ from the rest of Britain. For an American filer that difference does not simply disappear, because Scottish income tax feeds straight into your foreign tax credit.

Key takeaways

• Scottish income tax uses its own rates and bands on earned income.
• The Scottish system has more bands than the rest of the United Kingdom.
• Higher Scottish income tax usually means a larger foreign tax credit.
• Credits you cannot use in the year carry forward for ten years.
• Savings and dividend income still follow the rest of the UK rates.
• The exclusion and the credit rarely suit the same person equally.

What is Scottish income tax?

It is the set of rates and bands applied to the earned income of people who live in Scotland. The Scottish Parliament sets them, and they apply to salaries, pensions and self-employed profits. According to HMRC guidance, residence rather than workplace decides whether they apply to you.

So somebody living in Berwickshire and commuting south still pays the Scottish rates.

Your tax code carries a prefix showing which system applies. Check it on your payslip.

How does it differ from the rest of the UK?

Scotland uses more bands, and the rates in the middle and upper bands sit higher than elsewhere in Britain. A professional salary generally produces a larger British bill in Scotland than the same salary would in England or Wales. The gap widens as income rises.

The personal allowance itself stays the same across the United Kingdom.

So the divergence is in the bands above it rather than at the bottom.

Why does it matter to an American filer?

Because the foreign tax credit works from Scottish income tax actually paid. Paying more British tax on the same salary produces a larger credit to set against your American liability, which for many people wipes out the American charge entirely and then leaves something spare.

That spare amount is not lost, but it is not cash either.

Our guide to the foreign tax credit explains how the claim works.

A worked example

The figures below are illustrative and use round numbers to show the mechanics.

Two American colleagues each earn £75,000. One lives in Glasgow and one lives in Leeds, and their American returns are otherwise identical.

The Glasgow salary attracts more British tax, so that colleague carries a larger credit into the American calculation. Both end up owing nothing in America.

The difference is the surplus. The Glasgow colleague has a bigger pile of unused credit sitting in the carryforward, and no cash to show for it.

What happens to credits you cannot use?

They carry back one year and forward ten. Unused credits sit in a running balance by income category, waiting for a year with American tax to absorb them. Many people in Scotland accumulate them steadily and never find a use.

After ten years the oldest ones simply expire.

So track the balance rather than ignoring it. A future American-source gain can soak it up.

The two systems compared

Does it apply to all your income?

No, and this catches people out. The Scottish rates apply to earnings, pensions and trading profits, while savings interest and dividends follow the rates used across the rest of Britain. Somebody with a large investment portfolio sees less of the Scottish effect than a pure salary earner.

Rental profits do follow the Scottish rates.

So the mix of your income changes how much the difference actually bites.

Should you claim the credit or the exclusion?

In Scotland the credit usually wins. The exclusion removes a slice of earnings from the American calculation, but it also removes the British tax on that slice from your credit pool, which wastes relief you have already paid for. Higher British rates make that waste larger.

The exclusion suits people in low-tax countries far better.

Our guide to Form 2555 and the exclusion sets out the alternative.

Can you switch between them?

Yes, but not casually. Revoking the exclusion locks you out of claiming it again for five years without permission, so a switch made for one good year can cost you in the four that follow.

Model several years before changing anything.

The housing exclusion travels with the earnings exclusion too. Dropping one drops the other, which matters in an expensive city.

We see people switch on a single year's arithmetic and regret it later.

What about the tax year mismatch?

It applies here as everywhere. Britain runs to 5 April and America to 31 December, so the British tax you paid rarely lines up neatly with the American year it belongs to. Most people apportion on a consistent basis and keep using it.

Consistency matters more than which method you pick.

Changing the method halfway through creates gaps that are hard to explain.

Does National Insurance count?

Not as a creditable tax. National Insurance is a social security contribution rather than an income tax, and the agreement between the two countries handles it separately. It reduces your take-home pay without adding anything to your credit pool.

That surprises people who see it deducted alongside the tax.

Employer contributions sit outside it as well. Only the tax you personally bear can feed the credit.

Our guide to voluntary National Insurance covers the contribution side.

Does it change your self assessment?

Only in the figures, not the form. You file the same British return wherever you live, and the residence question on it tells HMRC which rates to apply. The calculation then runs automatically from your answers.

Get that answer right, because it drives everything downstream.

Our guide to registering for self assessment covers the first filing.

What about Scottish income tax on a pension?

Pension income follows the Scottish rates, since it counts as earned income rather than savings income. So a retired American living in Scotland sees the same pattern as somebody still working, with a larger British bill and a larger credit.

Drawdown from a British scheme behaves the same way.

Watch how the treaty treats each pension type before assuming the credit applies cleanly.

Is there any way to use the surplus?

Sometimes. American-source income taxed by America can absorb the balance, so a gain on American shares or a period working in the United States can finally put those credits to work.

Retirement withdrawals from an American account can do the same.

Plan the timing where you can. The alternative is watching them expire.

How to handle it on the return

1. Confirm from your tax code which set of rates applies to you.
2. Separate your earned income from savings and dividend income.
3. Total the British tax actually paid for the period, not the amount assessed.
4. Convert to dollars on a consistent and documented basis.
5. Allocate the tax to the right American income category.
6. Compare the credit outcome against the exclusion before choosing.
7. Record the unused credit balance and carry it forward each year.

What if you move across the border?

The rates follow your main home for the year, so moving changes which system applies from that point. HMRC looks at where you lived for most of the tax year, and it is worth telling them promptly when you move.

A wrong tax code creates an under or overpayment that takes months to unwind.

Keep evidence of the move date. A tenancy agreement or completion statement settles the question quickly.

Tell your employer as well. Payroll follows the code HMRC issues.

Does it affect your state filing?

Only if a state still claims you. Some American states keep taxing former residents who have not cut their ties properly, and those states rarely give credit for foreign tax at all. That is a separate problem from the federal one.

Our guide to US state tax for expats covers how to break the connection.

California and New York are the usual culprits. Both take a narrow view of when somebody has genuinely left.

Check it early. A state claim can outlast the federal question by years.

Does it affect a self-employed American?

Yes, on the profits. Trading profits follow the Scottish rates, so a consultant in Aberdeen pays more British tax than the same consultant in Bristol and carries a larger credit as a result.

But self-employment tax works separately, and the credit does not touch it.

A certificate of coverage is the usual answer there. Our guide to the certificate of coverage explains it.

What records should you keep?

Your P60 or self assessment calculation, showing tax actually paid rather than assessed, plus the payment dates. Keep the exchange rate basis you used and apply it the same way every year.

Add a simple running sheet of unused credits by category.

That sheet is the single most useful document in this whole area.

Is the gap likely to widen?

Nobody can promise either way, because the Scottish Parliament sets the rates each year and has changed them repeatedly. The sensible planning assumption is that some divergence continues rather than disappears.

So build the review into each year rather than deciding once.

A choice that suited last year may not suit this one.

Does it change how you are paid?

Not the mechanics, only the deductions. Payroll applies the code HMRC issues, and the prefix on that code tells the software which set of rates to use. Everything else about the payslip works the same way.

Salary sacrifice arrangements still reduce the taxable figure first.

So pension contributions remain a useful lever whichever side of the border you live on.

Check the code each April. Codes carry forward and errors carry forward with them.

Mistakes and penalties we see with Scottish income tax

The first is claiming the exclusion by default under Scottish income tax. In a higher-rate environment it usually costs money rather than saving it.

The second is applying Scottish rates to savings and dividends. Those follow the rest of the United Kingdom.

The third is losing track of the carryforward. An unrecorded balance is one nobody can use later.

The fourth is keeping a stale tax code after a move. It produces a British figure that does not match reality.

How US UK Tax Accountants helps

We split your income into the right categories, work the credit and the exclusion side by side, and keep a running record of unused credits so they are still there when a use appears. Then we prepare both returns to match.

We also check your tax code against where you actually live. Our treaty relief service covers the wider planning.

If you live in Scotland and file in America, get in touch. The default choice is the wrong one more often than not up here.

Last reviewed 28 September 2026. This article is general information and not personal tax advice. Every position turns on its own facts, so take advice on yours before choosing.