Maternity Take-Home Pay Calculator

One of the biggest financial surprises for new parents is discovering the difference between their gross maternity pay and what they actually receive in their bank account. Our maternity take-home pay calculator bridges this gap by showing you exactly what your Statutory Maternity Pay (SMP) will look like after Income Tax and National Insurance deductions for the 2026/27 tax year.

Unlike Maternity Allowance (which is tax-free), SMP is treated as earnings and is subject to the same tax rules as your normal salary. This means your employer will deduct Income Tax and employee National Insurance contributions from your SMP payments through the PAYE system. Understanding these deductions is essential for creating an accurate maternity leave budget.

How Income Tax Works on Maternity Pay

For the 2026/27 tax year, Income Tax is calculated on your total annual income. The key thresholds are:

• Personal Allowance: £12,570 — you pay no tax on this amount
• Basic rate (20%): On income from £12,571 to £50,270
• Higher rate (40%): On income from £50,271 to £125,140
• Additional rate (45%): On income above £125,140

During maternity leave, your income drops significantly compared to your normal salary. This often means you move into a lower tax bracket — or even fall within the Personal Allowance entirely during the flat-rate SMP period. For example, if you're only receiving the flat rate of £194.32 per week (£10,104.64 annualised), this is below the Personal Allowance, meaning no Income Tax is due during those weeks.

However, tax is calculated cumulatively by your employer through PAYE. If you were earning your full salary for the first few months of the tax year before starting maternity leave, you may have already used up a large portion of your Personal Allowance. The tax on your SMP payments will depend on when in the tax year your maternity leave falls.

Tax refund possibility: If your total income for the tax year (combining your pre-leave salary and SMP) is less than you would normally earn, you may be entitled to a tax refund. HMRC typically adjusts this through your tax code automatically, but if you think you've overpaid, you can contact HMRC or check through your Personal Tax Account.

National Insurance During Maternity Leave

Employee National Insurance contributions for 2026/27 are charged at 8% on earnings between the Primary Threshold (£242 per week) and the Upper Earnings Limit (£967 per week), and at 2% on earnings above the Upper Earnings Limit.

During the first 6 weeks of SMP (at 90% of your earnings), you will likely still pay NI contributions as your weekly pay will usually exceed the Primary Threshold. However, during the flat-rate period (£194.32 per week), your SMP is below the NI Primary Threshold of £242 per week. This means you won't pay any National Insurance during weeks 7 to 39 — a small but welcome saving.

Important: Even though you're not paying NI during the low-pay weeks, you're still protected. The weeks you receive SMP are treated as if you had paid NI for State Pension purposes, so there's no gap in your NI record. Additionally, claiming Child Benefit gives you NI credits for any remaining weeks where you're not earning enough.

Your Maternity Pay Month by Month

Understanding how your monthly income changes throughout maternity leave is critical for budgeting. Here's what a typical maternity leave looks like financially for someone on a £30,000 salary:

As you can see, the biggest income shock comes at week 7 when the 90% rate drops to the flat rate. Your monthly take-home drops from around £1,913 to approximately £842 — a reduction of over 55%. Planning for this transition is essential. Use the calculator above with your actual salary to get your personalised figures.

Employer Enhanced Maternity Pay

Many UK employers offer enhanced maternity pay above the statutory minimum. Common enhanced packages include:

• Full pay for a set period — typically 12 to 26 weeks at full salary, then reverting to SMP
• Topped-up SMP — your employer pays the difference between SMP and your normal salary for a period
• Occupational maternity pay (OMP) — a separate scheme with its own rules, often found in the public sector and larger companies

If your employer offers enhanced pay, the amount above SMP is taxed just like your normal salary — at your marginal tax rate. Our calculator shows the SMP-only take-home, but if you receive enhanced pay, your actual take-home will be higher during that period. Check your employee handbook or speak to your HR department to find out what your employer offers.

Budgeting Tips for the Maternity Leave Income Drop

The transition from full salary to SMP requires careful budgeting. Here are practical strategies to help manage the income reduction:

• Start saving before maternity leave: If possible, set aside money each month during pregnancy to build a maternity leave fund. Even small amounts add up over 9 months
• Review and reduce your outgoings: Go through direct debits and subscriptions now. Cancel anything you won't need and negotiate better deals on insurance, broadband, and utilities
• Claim all benefits you're entitled to: Make sure you're claiming Child Benefit (worth up to £1,406.60/year for your first child) and check eligibility for Tax-Free Childcare, Universal Credit, and council tax reductions
• Use annual leave strategically: You continue accruing holiday during maternity leave. Some women take annual leave before or after maternity leave to extend paid time off
• Plan for the unpaid period: If you're taking the full 52 weeks, weeks 40 to 52 are completely unpaid. You need savings or partner income to cover this period
• Consider Keeping In Touch (KIT) days: You can work up to 10 KIT days during maternity leave without affecting your SMP, and your employer pays you for these on top of your SMP

For a comprehensive budgeting guide, read our financial planning for maternity leave article.

Tax Codes and Maternity Pay

Your tax code determines how much tax-free income you receive each pay period. The standard tax code for 2026/27 is 1257L, which gives you the full Personal Allowance of £12,570. During maternity leave, your tax code shouldn't change unless there are other factors (like company benefits or outstanding tax).

If your employer processes your SMP through their payroll (as they should), the PAYE system will automatically adjust your tax calculations based on your cumulative earnings for the tax year. This means if you've had months of lower SMP payments, you may find your tax deductions are reduced or even zero in later months as HMRC catches up with your lower annual earnings.

Maternity Allowance vs SMP — Take-Home Comparison

If you don't qualify for SMP, you may receive Maternity Allowance instead. A key advantage of MA is that it's completely tax-free. This means the maximum MA rate of £194.32 per week is exactly what you receive — no deductions at all.

For SMP recipients, the flat-rate of £194.32 per week is also likely to be close to the take-home amount because it falls below the NI Primary Threshold and, depending on your annual earnings, may also fall within your remaining Personal Allowance. The biggest difference is during the first 6 weeks: SMP pays 90% of your earnings (taxed), while MA pays a maximum of £194.32 (tax-free). For higher earners, SMP is significantly more generous during this period.

Pension Contributions During Maternity Leave

Your pension is another important consideration during maternity leave. Here's how pensions interact with SMP:

• Employer contributions: Your employer must continue contributing to your pension during paid maternity leave, based on your normal salary (not your reduced SMP)
• Employee contributions: Your contributions during SMP are based on your actual pay (the SMP amount), which will be lower
• Unpaid leave: During weeks 40 to 52 (unpaid), neither employer nor employee pension contributions are required, though some employers continue voluntarily

This means your pension pot continues to grow during maternity leave, mainly thanks to your employer's contributions remaining at the pre-leave level. Check your pension scheme rules and speak to your HR department for your specific arrangements.

Plan Your Complete Maternity Leave Finances

Your take-home maternity pay is just one component of your financial picture. Use our full suite of calculators and guides to prepare comprehensively:

• SMP Calculator — calculate your gross Statutory Maternity Pay
• Maternity Leave Planner — work out your key dates and deadlines
• Child Benefit Calculator — check your Child Benefit entitlement
• Maternity Allowance Calculator — if you don't qualify for SMP

And don't miss our comprehensive guides: financial planning for maternity, your maternity leave rights, and returning to work after maternity.