How is take-home pay calculated?

What does take-home pay mean?

Take-home pay is the money left from your salary after deductions have been made through payroll. It is sometimes described as net pay.

Your annual salary is your gross pay before these deductions. That means two people with the same headline salary can potentially receive different amounts in their bank accounts depending on their tax code, pension arrangement, student finance and other payroll circumstances.

What is deducted from your salary?

For many employees, the biggest deductions from salary are Income Tax, National Insurance and pension contributions.

Other deductions can also appear on a payslip. Student loan and Postgraduate Loan repayments can also make a noticeable difference to take-home pay where they apply.

• Income Tax
• Employee National Insurance
• Workplace pension contributions
• Student loan repayments, where applicable
• Postgraduate Loan repayments, where applicable
• Other employer or payroll deductions

How Income Tax affects your take-home pay

Income Tax is not normally charged at one percentage across your entire salary. Your income is divided into bands, with different rates applying to different portions of your taxable income.

For the 2026/27 tax year, the standard Personal Allowance is £12,570. For England, Wales and Northern Ireland, taxable employment income then falls into the basic, higher and additional rate bands.

The Personal Allowance can also reduce once adjusted net income exceeds £100,000, so higher salaries can produce a larger increase in tax than simply moving into a higher tax band.

How your tax code affects take-home pay

Your tax code tells your employer how PAYE Income Tax should normally be calculated from your pay. A standard code such as 1257L broadly reflects the standard £12,570 Personal Allowance, while a lower numeric code can reduce the amount of income treated as tax free.

For example, a code such as 937L broadly represents £9,370 of tax-free allowance. That means somebody on the same salary as a person using 1257L could pay more Income Tax and receive less take-home pay.

Some tax codes work differently. K codes can increase the amount of income treated as taxable, while codes such as BR, D0, D1, 0T and NT apply specific PAYE treatments rather than a normal Personal Allowance.

The WorkSmartMoney Take-Home Pay Calculator lets you optionally enter a tax code so the estimate can better reflect the code shown on your payslip.

Read the full UK tax codes guide for the overall rules, or see the individual guides for BR, D0 and emergency tax codes.

• 1257L - a common standard tax code
• 937L - an example of a reduced tax-free allowance
• K codes - can add an amount to taxable income
• BR - generally taxes income at the basic rate
• D0 and D1 - generally apply higher or additional rate tax
• 0T - no Personal Allowance is applied
• NT - no Income Tax is deducted
• Scottish and Welsh prefixes can change the applicable Income Tax treatment

How National Insurance is calculated

Employees usually pay Class 1 National Insurance through PAYE. Like Income Tax, National Insurance is calculated using thresholds rather than applying one rate to your entire salary.

For most employees in the 2026/27 tax year, the main employee National Insurance rate is 8% on earnings between the Primary Threshold and Upper Earnings Limit, with 2% charged above the Upper Earnings Limit.

Income Tax and National Insurance therefore work differently, even though both normally appear as deductions on your payslip.

How student loan repayments affect take-home pay

If you are repaying a student loan, your employer can deduct repayments directly from your salary through payroll once your earnings are above the threshold for your repayment plan.

The amount you repay depends on which student loan plan you are on. For the 2026/27 tax year, Plans 1, 2, 4 and 5 each have different repayment thresholds, but repayments are generally charged at 9% of earnings above the relevant threshold.

Which plan applies usually depends on where you lived when you applied for student finance and when your course started.

Postgraduate Loans are calculated separately and are generally repaid at 6% of earnings above the Postgraduate Loan threshold. This means you can repay a standard student loan and a Postgraduate Loan at the same time.

The WorkSmartMoney Take-Home Pay Calculator lets you choose your student loan plan and add a Postgraduate Loan so these repayments are included in your estimated take-home pay.

• Plan 1 - mainly older loans from Student Finance England or Wales, plus loans from Student Finance Northern Ireland.
• Plan 2 - mainly Student Finance England loans for courses started from September 2012 to July 2023, and many Student Finance Wales undergraduate loans.
• Plan 4 - student loans from the Student Awards Agency Scotland (SAAS).
• Plan 5 - newer Student Finance England undergraduate or PGCE loans for courses started on or after 1 August 2023.
• Postgraduate Loan - a separate postgraduate repayment that can apply alongside another student loan plan.

Example: £50,000 salary with a 5% pension

A worked example makes the difference between salary and take-home pay easier to see.

The figures below use the assumptions in the WorkSmartMoney Take-Home Pay Calculator for an employee in England, Wales or Northern Ireland using a 5% salary-sacrifice pension and no student loan repayments.

How pension contributions can change take-home pay

The way your workplace pension is deducted can affect both your tax calculation and the amount that leaves your payslip.

With salary sacrifice, you agree to reduce your salary and your employer pays that amount into your pension instead. Under the rules applying in 2026/27, this can reduce the salary used to calculate both Income Tax and National Insurance.

With a net pay arrangement, pension contributions can reduce taxable pay without reducing National Insurance in the same way.

With relief at source, the pension contribution is normally taken from pay after Income Tax has been calculated. The pension provider then claims basic-rate tax relief from HMRC. For example, a 5% gross contribution can mean 4% is deducted from your pay and the remaining 1% is added through tax relief.

Choosing the pension method that reflects your actual scheme can therefore make a noticeable difference to the take-home estimate.

Does Scotland calculate Income Tax differently?

Yes. Scottish taxpayers use different Income Tax bands and rates for employment income.

National Insurance remains a UK-wide system, but the different Scottish Income Tax bands mean somebody on the same salary can have different take-home pay depending on whether they are a Scottish taxpayer.

That is why the WorkSmartMoney calculator asks which UK tax region applies to you rather than assuming the same Income Tax calculation everywhere.

Why your payslip may not exactly match a calculator

A take-home pay calculator is useful for estimates and comparisons, but payroll can include circumstances that an annual calculator does not reproduce exactly.

Monthly take-home figures are annualised estimates. Actual PAYE is calculated by pay period and can also depend on cumulative tax, payroll rounding, emergency tax treatment and pay-to-date information.

A custom tax code can make the estimate much closer to your payslip, but benefits, bonuses, multiple jobs, National Insurance category and other deductions can still affect the amount you actually receive.

• A tax code different from the standard Personal Allowance
• Emergency W1, M1, X or non-cumulative tax treatment
• Cumulative PAYE and payroll rounding
• Bonuses, overtime and commission
• Benefits in kind
• Multiple jobs or other taxable income
• Different National Insurance categories
• Payroll deductions outside tax, pension and student finance

Gross salary versus take-home pay

Gross salary is useful when comparing job offers because it shows the amount an employer has agreed to pay before deductions.

Take-home pay is often more useful for everyday budgeting because it is closer to the amount available for your mortgage or rent, bills, saving, investing and other spending.

Looking at both figures helps avoid making a decision based entirely on a headline salary increase that may translate into a smaller increase in monthly disposable income.

Use take-home pay as an estimate, not a payslip replacement

WorkSmartMoney is designed to help you understand the numbers behind a salary rather than reproduce every possible payroll situation.

For a closer estimate, enter the tax code shown on your payslip and choose the pension method that matches your workplace scheme. You can also add any student loan or Postgraduate Loan repayments that apply to you.

Use the result as a planning estimate and check your actual payslip or HMRC information if you need to understand an exact payroll deduction.