🇬🇧 UK Taxes for Newcomers 2026
Moving to the UK for work means understanding Income Tax, National Insurance, and the Immigration Health Surcharge — three separate charges that together determine your real take-home pay.
Getting a National Insurance Number
You need a National Insurance (NI) number to work legally and pay tax correctly in the UK. Most visa holders can apply as soon as they arrive, and it's free — be wary of any third party charging a fee for this. Without it, you may be taxed at an emergency rate until it's sorted, meaning more comes out of your paycheck than necessary in the short term.
Income Tax and National Insurance
Both are deducted from your salary, calculated with different thresholds and rates. On the median UK salary of £34,963-£39,039, a typical effective (combined) rate lands around 18% for income tax plus National Insurance, though this rises considerably for higher earners. For the exact bracket-by-bracket breakdown and a full worked example, see the UK Take-Home Pay Calculator.
The Immigration Health Surcharge (IHS)
Most work and study visa holders pay the IHS upfront as part of their visa application — £1,035/year for adults, £776/year for children — granting access to NHS services on broadly the same basis as a UK resident. Health and Care Worker visa holders are a notable exception: they're exempt from the IHS entirely.
Tax Residency
Whether you're taxed on worldwide income or just UK income depends on UK tax residency status, determined by the Statutory Residence Test (day-count and connecting-ties based, not simply "having a visa"). Most people arriving on a long-term work visa become UK tax resident from the date they arrive, but the exact test has genuine nuance for people with ties to more than one country — this is worth checking with a tax adviser if your situation isn't straightforward.
Council Tax
On top of income tax, every household pays Council Tax to their local authority, funding local services. This is separate from income tax and varies enormously by council and property band — a genuinely underestimated cost for newcomers budgeting only around salary tax. See the Council Tax Calculator for your specific band and area.
Common Mistakes
- Delaying your National Insurance number application. Without it, you risk being taxed at an emergency rate, taking more from each paycheck than necessary until it's resolved.
- Forgetting the IHS is a separate upfront cost. It's paid as part of the visa application, not deducted from salary — budget for it before arrival, not after your first payslip.
- Assuming Council Tax is included in rent. It's a separate charge to your local authority, on top of whatever your landlord charges for rent.
- Not checking UK tax residency status carefully. If you have significant ties to another country, the Statutory Residence Test can produce a less obvious result than "moved here, therefore resident."
Frequently Asked Questions
Do I need a National Insurance number to work in the UK?
Yes — it's required to work legally and be taxed correctly. Applying is free, and most visa holders can apply as soon as they arrive in the UK.
What is the Immigration Health Surcharge?
An upfront annual charge (£1,035 for adults, £776 for children) paid as part of most work and study visa applications, granting access to NHS services broadly on the same basis as a UK resident. Health and Care Worker visa holders are exempt.
Is Council Tax separate from income tax?
Yes, completely separate. Income tax and National Insurance are deducted from your salary by HMRC; Council Tax is billed directly by your local authority based on your property's valuation band.