Gross to Net Salary Calculator 2025/26 — UK Take-Home Pay

Understanding Your Gross to Net Salary in 2025/26

Your "gross salary" is what your employer agrees to pay you before any deductions. Your "net salary" — or take-home pay — is what actually lands in your bank account after the government takes its share through Income Tax and National Insurance, and after any other agreed deductions such as pension contributions and student loan repayments. For most employees on £30,000–£50,000, the difference between gross and net is typically 25–32% of their gross salary.

Understanding this calculation matters for budgeting, negotiating pay rises, comparing job offers, and making decisions about pension contributions and salary sacrifice arrangements. A pay rise from £35,000 to £38,000 adds £3,000 gross but only around £1,980 to your take-home after tax and NI — knowing this helps you negotiate more effectively.

Income Tax in 2025/26 — How It Is Calculated

Income Tax in England and Wales for 2025/26 is charged at the following rates:

• Personal Allowance: £12,570 — the first £12,570 of income is tax-free for most people
• Basic rate (20%): Income between £12,571 and £50,270
• Higher rate (40%): Income between £50,271 and £125,140
• Additional rate (45%): Income above £125,140

The personal allowance is tapered for incomes above £100,000 — it reduces by £1 for every £2 earned above £100,000, meaning it is fully withdrawn at £125,140. This creates an effective 60% marginal tax rate on income between £100,000 and £125,140, making pension contributions and salary sacrifice particularly valuable in this range.

Scottish taxpayers pay different rates — the starter rate of 19%, basic rate of 20%, intermediate rate of 21%, higher rate of 42%, advanced rate of 45%, and top rate of 48% — on different income bands set by the Scottish Parliament. If you live in Scotland, select the Scottish taxpayer option in the calculator above.

National Insurance — Employee Contributions in 2025/26

Employees pay Class 1 National Insurance contributions on their earnings above the Primary Threshold (£12,570 per year). The rates for 2025/26 are:

• 8% on earnings between £12,570 and £50,270 per year
• 2% on earnings above £50,270 per year

The 8% main rate was reduced from 10% in January 2024 and further to 8% in April 2024, saving a basic rate taxpayer around £450 per year compared to the 12% rate that applied before January 2024. Unlike Income Tax, NI is calculated on a pay-period basis (weekly or monthly) rather than annually, which means the timing of bonuses and variable pay can affect the NI payable in different months.

It is important to note that employer NI is entirely separate — your employer pays an additional 15% on your earnings above £5,000 per year (from April 2025), but this comes out of the employer's payroll budget, not your pay packet. However, the higher employer NI cost following the Autumn Budget 2024 has affected some employers' ability to award pay rises, making salary sacrifice schemes (which reduce employer NI as well as employee deductions) more valuable.

Pension Contributions and the Net Pay vs Relief at Source Methods

How pension contributions are deducted depends on your employer's pension scheme:

Net Pay Arrangement (most common)

Your pension contribution is deducted from your gross pay before Income Tax is calculated. This means if you contribute 5% of a £40,000 salary (£2,000), your taxable income drops to £38,000 and you automatically receive tax relief at your marginal rate. This is the most straightforward arrangement and is reflected in this calculator.

Relief at Source

Your contribution is deducted from your net pay. The pension provider reclaims basic rate tax (20%) from HMRC and adds it to your pot. Higher and additional rate taxpayers must claim the extra relief through Self Assessment. This means a £800 net contribution becomes £1,000 in your pension (£800 + £200 basic rate top-up).

For most employees, the key takeaway is that a 5% pension contribution does not reduce your take-home by the full 5% — because of the tax and NI savings involved, the actual cost is considerably lower. A 5% contribution on a £40,000 salary costs roughly £53/month less in take-home pay than you might expect, once the tax and NI savings are accounted for.

Student Loan Repayments — When Do They Start?

Student loan repayments are collected through the PAYE system alongside tax and NI once your income exceeds the relevant repayment threshold for your plan:

• Plan 1 (started university before September 2012): repayments start above £24,990/year at 9%
• Plan 2 (started September 2012 – July 2023): repayments start above £27,295/year at 9%
• Plan 4 (Scotland): repayments start above £31,395/year at 9%
• Plan 5 (started August 2023 or later): repayments start above £25,000/year at 9%
• Postgraduate loan: repayments start above £21,000/year at 6%

Student loan repayments are calculated on your income above the threshold — not your total income. You can hold both an undergraduate and a postgraduate loan simultaneously, with both deductions running at the same time if your income exceeds both thresholds.

The Effective Tax Rate vs Marginal Tax Rate

These two figures tell you different things about your tax burden. The effective tax rate (or average tax rate) is the total tax and NI paid as a percentage of your gross income — it tells you overall what fraction of your earnings goes to the government. The marginal tax rate is the rate you pay on the next pound of income — this is the figure that matters for decisions like whether to take overtime, accept a pay rise, or make a pension contribution.

For example, a person earning £55,000 has an effective combined Income Tax and NI rate of around 28%, but their marginal rate is 42% (40% tax + 2% NI). This means any extra earnings above £50,270 are taxed at 42p in the pound — making pension contributions that reduce income below this threshold particularly valuable.

Frequently Asked Questions