Weekly Paternity Pay
£184.03
Total SPP
£184.03
Shared Parental Pay
£0.00
Total Paid Leave
£184.03
Rates & sources
Standard amortisation formulas used across UK lenders. Interest rates move daily — confirm with your lender or broker.
Source: Bank of England — Statistics — figures refreshed at the start of each tax year.
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When to use this calculator
- Before comparing lenders, brokers, or repayment options.
- When you want to test how a different deposit, rate, or term changes affordability.
- When you need a quick estimate before using a formal quote or agreement in principle.
- When you are stress-testing your budget against a potential rate rise to see the impact on monthly payments.
- When you want to understand the full cost of borrowing — not just the monthly figure — before you commit.
A realistic UK planning example
Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.
Average Weekly Earnings (£)
25 years
Paternity Leave Duration
1 week
Shared Parental Leave Weeks (additional)
£1,400
After entering these figures, review weekly paternity pay, total spp and shared parental pay together rather than in isolation — each metric tells a different part of the story. Then rerun the tool with one input adjusted to see which variable has the biggest effect on all three outputs before you settle on a plan.
How to read your results
Weekly Paternity Pay
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Total SPP
This is the headline outcome of the calculation, but it is most useful when read alongside the supporting metrics below it rather than in isolation. Try changing one input at a time and watching how this total moves to understand which driver has the biggest impact.
Shared Parental Pay
Use this metric to compare scenarios side by side and understand how changes in the key inputs drive the final outcome. If the figure surprises you, isolate one variable at a time and rerun the calculation to identify which assumption is responsible.
Total Paid Leave
This is the headline outcome of the calculation, but it is most useful when read alongside the supporting metrics below it rather than in isolation. Try changing one input at a time and watching how this total moves to understand which driver has the biggest impact.
Method & assumptionsAuthoritative sources
This calculator estimates Statutory Paternity Pay (SPP) using the 2024/25 rate of £184.03 per week, capped at 90% of your average weekly earnings (AWE) if that is lower. Standard paternity leave is limited to one or two consecutive weeks taken within 56 days of the birth. The optional Shared Parental Leave (SPL) field lets you model additional paid weeks if you and your partner elect to split the maternity or adoption leave entitlement — SPL weeks are paid at the same rate as SPP. All figures shown are gross, before tax and National Insurance deductions, which your employer will apply through PAYE.
To qualify for SPP you must have worked for your employer for at least 26 continuous weeks by the qualifying week (the 15th week before the expected due date) and earn at least £123 per week on average — the lower earnings limit for 2024/25. If you earn above £184.03 per week and your employer offers no enhanced pay, the statutory weekly cap means you will receive less than your normal wage during leave. The unpaid difference per week is shown in the formula output and can help you plan your budget ahead of the birth.
Common mistakes
- !Mixing up loan amount and property value, which can distort affordability and LTV.
- !Using a headline rate but forgetting fees, insurance, taxes, or repayment type.
- !Testing only one term length instead of comparing the payment and total cost together.
- !Forgetting that a repayment mortgage and an interest-only mortgage produce very different monthly figures and total costs.
- !Not accounting for the impact of a rate revert after an introductory fixed period ends, which can sharply increase payments.
What to do next
- Run a second scenario with a higher rate or shorter term so you can see the downside clearly.
- Compare the result with an affordability or overpayment calculator before applying.
- Use the related guides below to understand trade-offs before you request live quotes.
- Note down the monthly payment and total interest for your two or three strongest scenarios so you have a clear comparison ready when you speak to a broker.
- Check whether making a modest overpayment each month would reduce total interest significantly — run the overpayment calculator next to find out.
Frequently asked
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End-of-article next steps
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