Does salary sacrifice reduce how much I can borrow for a mortgage?

Full answer

Salary sacrifice arrangements (most commonly for pension contributions, but also sometimes for benefits like childcare vouchers or cycle to work schemes) are tax-efficient, but they can create an unexpected complication when applying for a mortgage, since most lenders base affordability primarily on your documented salary. **Why lenders look at post-sacrifice salary** Most mortgage lenders assess affordability primarily using the gross salary figure shown on your recent payslips and P60 -- since salary sacrifice contractually reduces your actual gross salary (in exchange for the employer making a larger pension contribution, or providing another non-cash benefit, on your behalf), this REDUCED figure is what typically appears on your payslip and is what many lenders will use in their affordability calculation, rather than your original, pre-sacrifice salary. **Why this can reduce your borrowing capacity** Because mortgage affordability is generally calculated as a multiple of income (commonly around 4-4.5 times gross annual income, though this varies significantly by lender and individual circumstances), a lower documented salary due to salary sacrifice can directly translate into a lower maximum mortgage offer, even though your true overall financial position (including the value of the extra pension contribution or other benefit) may be just as strong, or arguably stronger, than an equivalent employee without a sacrifice arrangement. **Some lenders do make adjustments** Not all lenders treat salary sacrifice identically -- some specifically ask about salary sacrifice arrangements during the mortgage application process and may be willing to add back some or all of the sacrificed amount when assessing affordability, particularly for pension salary sacrifice, recognising that the underlying gross salary before sacrifice better reflects the applicant's genuine earning capacity -- but this is not universal, and some lenders will strictly use the post-sacrifice figure regardless. **What to do if salary sacrifice is affecting your mortgage application** If you are planning a mortgage application and are concerned that salary sacrifice is reducing your assessed affordability, options include: shopping around specifically for lenders known to add back salary sacrifice amounts (a mortgage broker can be valuable here, since they will often know which lenders take a more favourable approach); temporarily reducing or pausing a salary sacrifice arrangement in the months before applying (though this needs enough lead time for the higher salary to show on recent payslips, and may not always be possible depending on the specific scheme rules); or accepting a somewhat lower mortgage offer reflecting the post-sacrifice salary, if maintaining the sacrifice arrangement (and its associated tax/NI savings) is a higher priority than maximising borrowing capacity. **Balancing pension saving against mortgage borrowing needs** There is a genuine trade-off here for borrowers close to their maximum affordable mortgage amount -- salary sacrifice pension contributions provide valuable tax and National Insurance savings, but at the potential cost of reduced mortgage borrowing capacity if the lender does not add back the sacrificed amount, so borrowers planning a house purchase in the near future should factor this into their decision about whether to maintain, increase, or temporarily reduce salary sacrifice contributions. **Worked example** An employee earning £45,000 gross salary sacrifices £5,000 a year into their pension, reducing their contractual salary (as it appears on payslips) to £40,000. Applying for a mortgage with a lender that strictly uses the post-sacrifice £40,000 figure and offers 4.5 times income, they could borrow up to £180,000, compared with £202,500 if the same lender had instead used their original £45,000 pre-sacrifice salary. If they specifically find and use a different lender willing to add back the sacrificed pension amount for affordability purposes, they could potentially access the higher £202,500 figure instead, while still benefiting from the tax-efficient salary sacrifice arrangement itself. **Practical tip** If you are planning to apply for a mortgage in the near future and have a salary sacrifice arrangement, discuss this specifically and early with a mortgage broker, who can identify lenders more likely to add back sacrificed amounts for affordability purposes, potentially avoiding an unnecessary reduction in your borrowing capacity.

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