Tax Code S1257L Explained
S1257L is the standard tax code for Scottish taxpayers in 2025-26. The S prefix indicates Scotland, and 1257L means the standard Personal Allowance of £12,570 applies. Scotland has its own income tax rates with six bands: Starter rate 19% (£12,571–£15,397), Basic rate 20% (£15,398–£27,491), Intermediate rate 21% (£27,492–£43,662), Higher rate 42% (£43,663–£75,000), Advanced rate 45% (£75,001–£125,140), and Top rate 48% above that. National Insurance is the same as the rest of the UK.
Who gets tax code S1257L?
Scottish residents — those whose main place of residence is in Scotland — with a standard employment situation (one job, no complications). HMRC determines Scottish tax residence based on where you live, not where you work. If you live in Scotland, you will have an S prefix on your tax code regardless of where your employer is based.
Scottish Income Tax: Scotland sets its own income tax rates via the Scottish Parliament. For 2025-26, the Starter Rate (19%) applies from £12,571–£14,876, the Intermediate Rate (21%) applies from £26,562–£43,662, and the Higher Rate (42%) applies from £43,663–£75,000 — significantly higher than England's 40% which starts at £50,270. National Insurance is the same across all UK regions.
Take-home pay on tax code S1257L — Scotland 2025-26 examples
Examples below show Scottish Income Tax and take-home pay at common salary levels. NI applies on the same basis for all UK employees regardless of region.
| Gross Salary | Scottish IT | NI (est.) | Take-Home | Effective IT Rate |
|---|---|---|---|---|
| £20,000 | £1,458 | £594 | £17,948 | 7.3% |
| £25,000 | £2,458 | £994 | £21,548 | 9.8% |
| £30,000 | £3,483 | £1,394 | £25,123 | 11.6% |
| £35,000 | £4,533 | £1,794 | £28,673 | 13.0% |
| £40,000 | £5,583 | £2,194 | £32,223 | 14.0% |
| £45,000 | £6,914 | £2,594 | £35,492 | 15.4% |
| £50,000 | £9,014 | £2,994 | £37,992 | 18.0% |
| £60,000 | £13,214 | £3,211 | £43,575 | 22.0% |
| £75,000 | £19,514 | £3,511 | £51,975 | 26.0% |
| £100,000 | £30,764 | £4,011 | £65,225 | 30.8% |
Take-home = Gross − Scottish Income Tax − National Insurance. No pension, student loan or other deductions. NI: 8% between £12,570–£50,270 and 2% above.
Scottish income tax bands 2025-26
| Band | Rate | Income range |
|---|---|---|
| Starter Rate | 19% | £12,571 – £15,397 |
| Basic Rate | 20% | £15,398 – £27,491 |
| Intermediate Rate | 21% | £27,492 – £43,662 |
| Higher Rate | 42% | £43,663 – £75,000 |
| Advanced Rate | 45% | £75,001 – £125,140 |
| Top Rate | 48% | £125,141 – no upper limit |
If you have tax code S1257L, here's what you should know
- Your S-prefix tax code confirms you are coded as a Scottish resident for income tax purposes. HMRC uses your residential address to determine this.
- Your employer uses this code to deduct Scottish Income Tax — they follow HMRC's instructions and cannot change your code themselves.
- If you have recently moved to or from Scotland, contact HMRC to ensure your code is updated. An incorrect residence determination means wrong tax rates applied.
- You can view and update your tax code via your Personal Tax Account at gov.uk.
- If you think your code is wrong, contact HMRC on 0300 200 3300 or use the HMRC app.
Frequently asked questions
What does tax code S1257L mean?
S1257L is the standard tax code for Scottish taxpayers in 2025-26. The S prefix indicates Scotland, and 1257L means the standard Personal Allowance of £12,570 applies. Scotland has its own income tax rates with six bands: Starter rate 19% (£12,571–£15,397), Basic rate 20% (£15,398–£27,491), Intermediate rate 21% (£27,492–£43,662), Higher rate 42% (£43,663–£75,000), Advanced rate 45% (£75,001–£125,140), and Top rate 48% above that. National Insurance is the same as the rest of the UK.
Who gets tax code S1257L?
Scottish residents — those whose main place of residence is in Scotland — with a standard employment situation (one job, no complications). HMRC determines Scottish tax residence based on where you live, not where you work. If you live in Scotland, you will have an S prefix on your tax code regardless of where your employer is based.
How much do I take home on tax code S1257L earning £30,000 in Scotland?
On tax code S1257L with a £30,000 salary in Scotland, you take home £25,123 per year (£2,094 per month) after Scottish Income Tax of £3,483.
Is tax code S1257L correct for me?
Your Scottish tax code is set by HMRC based on your individual circumstances and Scottish residence. If you believe your code is wrong, contact HMRC on 0300 200 3300 or check your Personal Tax Account at gov.uk. An incorrect code could mean you are paying too much or too little Scottish Income Tax.
Want to see your exact Scottish take-home pay with your real salary, pension, and student loan?
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