Compare countries / United Kingdom → California, USA / £30,000

United Kingdom 2026/27 · California, USA 2026

£30,000 in UK — what you need in California

To take home the same as £30,000 does in the United Kingdom, you need $40,057 in California. Move on the same salary and you would keep less: £30,000 converts to $39,740, which leaves $33,037 after tax — £179 less a year in your pocket.

£25,120
what you keep now
on a salary of£30,000 16.3% taken
United Kingdom · London
Gross£30,000
Income tax£3,486
National Insurance£1,394
Take-home£25,120
Notes
Employee National Insurance, standard tax code, no pension contributions.
$33,275
the same, over there
on a salary of$40,057 16.9% taken
California, USA · San Francisco
Gross$40,057
Federal income tax$2,627
Social Security$2,484
Medicare$581
California state tax$570
California SDI$521
Take-home$33,275
Notes
Single filer taking the standard deduction. California state tax plus State Disability Insurance, which has had no wage cap since 2024.

What is paid away and what stays yours

Tax and retirement are different money

The matching salary above uses spendable take-home. Tax and compulsory payroll charges reduce that cash. Pension, superannuation and end-of-service benefits are shown separately because they may still have value to you later, but cannot pay today's rent.

London Scheme-dependent Workplace pension

Not deducted in this comparison. If enrolled, the legal minimum is 8% of qualifying earnings: at least 3% from the employer and usually 5% from the employee, including tax relief. Employees can opt out and schemes vary.

San Francisco Plan-dependent 401(k) or employer retirement plan

Excluded because employee contributions and employer matches are optional and plan-specific. Social Security and Medicare reduce take-home above, but they are public insurance charges rather than a personal investment account.

Adjust this salary and add your own living costs →

The three numbers that matter
Matching salary in California, USA$40,057
the same salary, simply converted$39,740
Effective rate, United Kingdom16.3%
Effective rate, California, USA16.9%
Exchange rate used1 GBP = 1.3247 USD

30,000 GBP to USD

At the 2026-10-15 exchange rate, £30,000 converts to $39,740 before tax. After California, USA income tax and compulsory payroll charges, that converted salary leaves $33,037. The salary needed to match your original take-home is $40,057, which is why a currency conversion alone cannot compare two job offers.

Questions about £30,000 in UK and California

What salary in California matches £30,000 in UK after tax?

About $40,057. £30,000 leaves £25,120 after tax in UK; the matching salary leaves $33,275 in California at the 2026-10-15 exchange rate.

What if I earn the same gross salary in California?

£30,000 converts to $39,740 before tax. At that gross salary, the California model leaves $33,037 after compulsory deductions, equivalent to £24,940 in GBP.

Does this UK to California comparison include living costs?

No. It compares income tax and compulsory payroll deductions. Rent, healthcare, childcare and other personal costs are not assumed. You can enter your own costs in the interactive calculator.

What this does and does not include

This page compares spendable take-home pay — income tax and compulsory social contributions. Retirement benefits are listed separately above instead of being treated as money lost. Rent, childcare, healthcare and schooling can be larger than the tax difference. Use the calculator above to add your own monthly costs for both places; it deliberately does not guess them from a city average.

It cannot answer whether moving is worthwhile. People move for family, relationships, career direction, lifestyle and reasons that have no sensible price. This is the financial part of the comparison, not a verdict on the decision.

The exchange rate is the European Central Bank reference rate for 2026-10-15. Rates move; the tax arithmetic does not.

Where the numbers come from

Every figure on this page is computed from those published rates at build time, not copied from another calculator. If one looks wrong, tell us and we will show our working.