UK Take-Home Pay on a £45,000 Salary: Full 2026/27 Payslip Breakdown

UK employees pay income tax through PAYE (Pay As You Earn). Your employer calculates the deduction each pay period using your tax code and the 2026/27 annual bands:

Key mechanics:

• The Personal Allowance of £12,570 is frozen through 2028, so allowance creep quietly raises your tax bill as wages rise with inflation.
• Monthly figures for code 1257L: £1,047.50 tax-free allowance, then 20% on taxable pay up to £3,141.67 per month, and 40% up to £9,380.83 per month.
• Between £100,000 and £125,140 the allowance withdraws by £1 for every £2 of income, creating a 60% effective marginal rate (62% including employee NI).

National Insurance is a separate payroll tax from income tax, with two sides:

Employee Class 1 NIC (2026/27)

• 0% below the Primary Threshold of £12,570 a year (£242 per week, £1,048 per month).
• 8% between £12,570 and the Upper Earnings Limit of £50,270 (£967 per week, £4,189 per month).
• 2% on everything above £50,270.

Employer Secondary NIC (from 6 April 2026)

• 15% on all wages above the Secondary Threshold of £5,000 a year (£96 per week, £417 per month) — reduced from 13.8% over £9,100.
• Small employers can claim the £10,500 Employment Allowance against their NIC bill.

Employer NIC never appears on your payslip — it is a cost on top of your salary that your company pays to HMRC.

If you earn over £10,000 a year your employer must auto-enrol you into a workplace pension under the Pensions Act 2008. Statutory minimum contributions on qualifying earnings are:

• Employee: at least 5% of qualifying earnings (5% including tax relief).
• Employer: at least 3% of qualifying earnings.
• You can contribute more (6%, 8%, or 10% are common) and many employers match higher contributions.

Contributions are deducted before income tax is calculated, so a 5% pension on £45,000 saves you 20% tax on the £2,250 you contribute — worth £450 a year at the basic rate. The same contribution also reduces your student loan calculation (see below), because Plan 2 is assessed on pay after a salary-sacrifice pension.

Student loan repayments are collected through PAYE by your employer once your earnings pass your plan's monthly threshold. Repayment is 9% of the excess above the threshold (6% for postgraduate loans):

Repayments stop automatically if you stop earning below the threshold, and Plan 1/2/4 balances are written off 40 years after your first repayment. Nothing is deducted in a month where you earn below the threshold — it is assessed per pay period, not averaged across the year.

A full-time employee earning £45,000 a year (£3,750 gross per month) with a 5% workplace pension and a Plan 2 student loan sees this payslip in 2026/27:

Annualized, that is £6,036 income tax, £2,594 NIC, £2,250 pension, and about £1,390 of student loan repayments — leaving roughly £32,730 a year in your bank.

Applying the 50/30/20 budgeting rule to the net figure: £1,363.76 for needs, £818.25 for wants, and £545.50 for savings and debt repayments.

Employers pay their own National Insurance and pension contributions on top of your salary. On a £45,000 employee:

• Employer Secondary NIC: 15% × (£45,000 − £5,000) = £6,000 a year (£500 a month).
• Employer pension (3% minimum): £1,350 a year.
• Total employment cost: about £52,350 a year for a £45,000 employee.

This is why the true cost of hiring is always higher than the headline salary, and why the April 2026 shift to 15% employer NIC over a £5,000 threshold matters for wage setting.

From 1 April 2026, the statutory hourly floors (National Minimum Wage Act 1998, as set by the Low Pay Commission) are:

• £12.71 — National Living Wage, workers aged 21 and over.
• £10.85 — workers aged 18 to 20.
• £8.00 — workers aged 16 and 17, and apprentices in their first year.

At £12.71 an hour, a 37.5-hour week pays £476.63 gross — £24,784.50 a year, which sits below the £12,570-plus-20% zone for most workers and therefore attracts relatively little income tax. The independent Real Living Wage (announced each October by Living Wage Foundation) is £13.45 UK-wide and £14.80 in London — voluntary, not statutory.

Two UK payroll quirks catch people out:

1. 1The £100,000–£125,140 allowance taper. For every £2 of income above £100,000 your Personal Allowance falls by £1, producing a 60% income tax marginal rate (62% with employee NIC) until the allowance reaches zero. Pension contributions and charitable giving are the standard ways to reduce adjusted net income below £100,000.

1. 2Emergency tax codes. When you start a new job without a P45, HMRC issues a month-1 (M1) or week-1 (W1) code — typically 1257L on a non-cumulative basis — which can over- or under-deduct for the first month or two. Codes such as BR (all at 20%), D0 (all at 40%) and NT (no tax) apply to specific income types. Your payslip always shows the code in use, and HMRC reconciles the difference through your tax code in later months rather than a separate refund.

On a fixed salary your net pay can still vary: a tax code change mid-year, a payroll period with 53 weekly paydays, or a pay rise backdated across the year will all move the monthly figure.

Common questions about UK take-home pay on a £45,000 salary: