Net Pay vs Gross Pay Explained: What's the Difference 2026/27

Gross pay is the total amount your employer pays you before anything is deducted. It includes your contracted salary, any bonuses or commission, overtime payments, statutory pay such as Statutory Sick Pay or Statutory Maternity Pay, and any other cash payments you receive as part of your employment.

When a job advertisement says a role pays £35,000 per year, that is a gross figure. When your contract confirms your annual salary, that figure is gross. It represents the full cost of your labour to the employer before HMRC takes its share and before any voluntary or mandatory deductions are applied.

Gross pay is what HMRC uses as the starting point for calculating your income tax and National Insurance. It is also what lenders typically ask for when assessing mortgage affordability, what pension scheme administrators use to calculate contribution percentages, and what student loan repayments are based on for each pay period.

What Is Net Pay?

Net pay, also called take-home pay, is what you actually receive. It is gross pay after all statutory and voluntary deductions have been removed. This is the figure that appears in your bank account on payday, and the figure that determines your actual spending power.

For most UK employees, net pay is the number that matters for day-to-day financial decisions. It is what you budget from, what rent or mortgage payments come out of, and what you have available after all required deductions. Budgeting from gross salary rather than net is one of the most common financial planning errors, particularly among people starting employment for the first time.

What Converts Gross Pay Into Net Pay

Several deductions bridge the gap between gross and net. Some are statutory and mandatory for all eligible employees. Others depend on personal circumstances or employment arrangements.

Income Tax (PAYE)

Income tax is the largest single deduction for most employees. For 2026/27, the standard personal allowance is £12,570. No income tax is charged on earnings up to this threshold. Above it, the basic rate of 20% applies on earnings up to £50,270. The higher rate of 40% applies between £50,271 and £125,140. The additional rate of 45% applies above £125,140.

The difference between gross pay and taxable pay is only relevant if you are in a salary sacrifice scheme. If you contribute to a pension through salary sacrifice, your employer reduces your gross contractual pay first, meaning taxable pay is lower than the advertised salary. If your pension is on a net pay or relief at source basis, taxable pay typically equals gross pay and the pension deduction appears separately later in the calculation. Our PAYE payslip guide covers every line in detail.

Gross Pay vs Net Pay: Which Figure Should You Use?

Why the Gap Between Gross and Net Changes

The difference between gross and net pay is not fixed. Several things can cause it to grow or shrink.

A Pay Rise

If a pay rise takes you into a higher income tax band, the marginal increase in gross pay produces a smaller increase in net pay than previous rises did. A basic rate taxpayer receiving a £3,000 pay rise keeps approximately £2,160 of it after income tax (20%) and NI (8%). A higher rate taxpayer receiving the same rise keeps approximately £1,740 after income tax (40%) and NI (2%). The gross rise is the same; the net improvement differs by around £420.

A Bonus or Overtime Month

Bonuses and overtime increase gross pay in a single pay period, which PAYE projects across the year. If the elevated month-end gross exceeds the monthly equivalent of the higher rate threshold (£4,189 per month), PAYE temporarily applies 40% to some earnings. This widens the gap between gross and net in that specific month, though the income tax element usually corrects in subsequent months. NI and student loan deductions from the bonus month are permanent.

Changes to Pension Contribution Rate

Increasing a pension contribution directly reduces net pay by the net cost of the additional contribution. A basic rate employee increasing their salary sacrifice contribution by 1% on a £36,000 salary reduces take-home by approximately £259 per year (£360 gross contribution minus 20% tax and 8% NI saving of £101). Our pension tax relief calculator shows the exact net cost at any contribution rate and salary.

A Change in Tax Code

A lower tax code reduces the personal allowance, which increases the amount of gross pay subject to income tax, which widens the gross-net gap. An emergency code such as 0T removes the personal allowance entirely, producing a much larger difference between gross and net than a standard 1257L code would. Our guide to sudden tax code changes explains the most common triggers.

The Self-Employed Version: Gross Profit vs Net Profit

Self-employed workers operate differently. Their gross income is their total revenue before expenses. Their net profit is revenue minus allowable business expenses, which is the figure used for income tax and Class 4 National Insurance calculations. Unlike employed workers, the self-employed do not have deductions taken at source each month. Instead, they pay income tax and NI in two annual lump sums through self assessment (31 January and 31 July). The concept of gross versus net is therefore slightly different: the gap between what goes in and what you keep is made up of both business costs and tax.

Our self-employed tax calculator calculates income tax and Class 4 NI on any profit figure, showing the equivalent of the net-after-tax position for sole traders.

Practical Examples With All Deductions

Example 1: £25,000 Gross, Basic Rate, No Student Loan, 5% Pension (Salary Sacrifice)

Example 2: £40,000 Gross, Basic Rate, Plan 2 Student Loan, 5% Net Pay Pension

Example 3: £60,000 Gross, Higher Rate, No Student Loan, No Pension

On a £60,000 gross salary, net pay without pension contributions is approximately £3,771 per month. The effective combined deduction rate is about 24.6% of gross pay. Adding a 5% pension contribution (£250 per month gross) on salary sacrifice would reduce take-home by approximately £145 per month (net of the 40% tax and 2% NI saving), giving a monthly net of roughly £3,626 while directing £250 into a pension pot.

Common Misunderstandings

Using Gross Pay to Budget

The most practical error is treating gross salary as available income. Someone told they are earning £40,000 per year and mentally dividing by 12 to get £3,333 per month will be surprised when approximately £2,447 arrives after income tax, NI, pension, and a student loan deduction. Planning spending from the net figure avoids this confusion entirely.

Assuming Pension Contributions Come Entirely From Net

Pension contributions feel like a large deduction on a payslip, but the net cost is always less than the gross contribution because of tax relief. A basic rate employee contributing £200 per month to a salary sacrifice pension only loses approximately £144 in take-home pay because of the combined income tax and NI saving. Mentally treating the full £200 as the cost overstates what pension saving actually costs in take-home terms.

Comparing Job Offers on Gross Without Accounting for Differences

Two job offers with the same gross salary can produce different net pay if one includes a company car (which reduces the personal allowance through a lower tax code), different pension contribution rates, or different salary sacrifice arrangements. A role offering £40,000 with a company car, private medical insurance, and a 3% pension may produce lower net pay than a role offering £38,000 with no benefits and a 5% employer pension. Comparing net take-home rather than gross alone gives a more accurate picture of what each role is actually worth in cash terms.

Not Accounting for PAYE Timing Effects

Bonus months and overtime months will always show a larger gap between gross and net than standard months. This is not a permanent change. PAYE adjusts income tax over the following months as the year-to-date position corrects. Workers who see an unusually wide gross-to-net gap in a high-earning month sometimes assume something has gone wrong when it has not. Our bonus tax guide explains why this happens and when it self-corrects.

How to Calculate Your Own Net Pay

1. Start with your gross annual salary. This is on your employment contract or payslip.
2. Subtract any salary sacrifice amounts. If you sacrifice for pension, cycle to work, or a car, subtract these from gross to get your taxable pay.
3. Calculate income tax. Subtract the personal allowance (£12,570) from your taxable pay. Apply 20% to the remainder up to £50,270. Apply 40% to any amount between £50,271 and £125,140. Apply 45% above £125,140. Our income tax calculator does this automatically.
4. Calculate National Insurance. Apply 8% to gross earnings between £12,570 and £50,270, and 2% above £50,270. Our National Insurance calculator verifies this separately.
5. Add pension deductions not already in salary sacrifice. If your scheme uses net pay or relief at source, add the contribution amount as a separate deduction from the post-tax figure (net pay) or post-income-tax figure (net pay arrangement).
6. Add student loan repayments if applicable. Calculate 9% (or 6% for postgraduate) of gross monthly earnings above your plan threshold. Use our student loan calculator for the exact figure.
7. Subtract all deductions from gross pay. The remaining amount is your estimated net pay.

Final Thoughts

The difference between gross pay and net pay is one of the most fundamental things to understand about your finances as a UK employee. Gross is what you earn. Net is what you keep. The gap is made up of income tax, National Insurance, pension contributions, student loan repayments, and any salary sacrifice arrangements, all of which are applied through PAYE before you see anything.

For most workers, the single most useful habit is to plan from net pay rather than gross. A £40,000 salary does not mean £3,333 per month to spend. With standard deductions, it is closer to £2,400 to £2,600 depending on pension rate and student loan status. Understanding which deductions apply to you, and in what amount, makes the number entirely predictable rather than a monthly surprise.

To see your exact gross-to-net conversion, our income tax calculator handles income tax and NI together for any salary. Our National Insurance calculator verifies the NI figure separately. For a full line-by-line breakdown of how every payslip deduction works, our PAYE payslip guide explains each item from the top of the slip to the net pay total.

Official Sources and Further Reading

GOV.UK Official Guidance:

• PAYE and employee tax - Official guidance on how PAYE works
• Income Tax Rates and Allowances - Current tax bands and thresholds
• National Insurance rates - Employee and employer NI rates
• Student loan repayments - Repayment thresholds and plans
• Workplace pensions - Auto-enrolment and contribution rates

This guide provides general information about gross pay and net pay for 2026/27. Individual circumstances vary. For personalised advice about your specific situation, consult a qualified tax adviser or accountant. Always check GOV.UK for current rates and guidance.