Estimate statutory maternity pay from average weekly earnings and maternity weeks. This is the right page when you need a planning figure before leave starts, not a final payroll decision.
SMP · 2026/27
Statutory maternity pay calculator
Estimated result
£9,923
- First 6 weeks
- £3,510
- Remaining weeks
- £6,413
- Standard weekly rate used
- £194.32
2026/27 estimate. Eligibility, employment dates and the relevant earnings period are not determined here.
Estimate maternity pay from average weekly earnings and the number of weeks you expect to claim.
Estimate statutory maternity pay from average weekly earnings and maternity weeks. This is the right page when you need a planning figure before leave starts, not a final payroll decision.
A worker with average weekly earnings of £650 and 39 weeks of maternity pay will see a higher first-six-weeks figure than the later weeks, because the statutory scheme pays 90% of earnings initially and then moves to the standard weekly rate.
- Eligibility depends on employment dates and the relevant earnings period.
- The first six weeks are paid differently from the remaining weeks.
- Payroll treatment and any other family payments can change the visible net amount.
QUICK ANSWER
What is this calculator?
Statutory Maternity Pay Calculator turns the inputs on this page into a transparent planning estimate for the selected jurisdiction.
How is it calculated?
It uses the displayed inputs, the GB-2026.27.1 ruleset and the assumptions shown beside the result. Different eligibility, timing or household details can change the outcome.
Example
Use the result as an illustrative scenario, then change one input at a time to compare the next decision. It is not an offer or personalised financial advice.
Official source
Maternity assumptions are checked against GOV.UK employer rates and thresholds for the current tax year.
SOURCES & REVIEW
Checked against official guidance
Last reviewed 2 August 2026 · Rule version GB-2026.27.1
Daily/weekly source monitoring. If a source changes, the affected rule set is reviewed before publication.
Source line: Maternity assumptions are checked against GOV.UK employer rates and thresholds for the current tax year.
SOURCE LINKS
Every calculation keeps the official references visible so the numbers can be checked quickly.
WHY RESULTS DIFFER
Why two users can see different results
Why the result can differ
Different tax codes, payroll periods, Scottish bands, pension methods or lender assumptions can change the outcome.
One-off bonuses, pay frequency, overpayments, allowances and reliefs can move the result away from a simple annual estimate.
Where a rule depends on eligibility or legal status, this page shows an estimate and links to official guidance.
The explanation stays close to the result so users can compare the assumptions immediately instead of hunting through a separate policy page.
COMMON QUESTIONS
Frequently asked questions
Does this confirm eligibility?
No. Eligibility still depends on the official employment and earnings tests.
Why do the first six weeks look different?
The statutory formula pays 90% of average weekly earnings for that period.
Can this change if my pay period changes?
Yes. Payroll periods and the earnings reference week can affect the result.