Goes beyond a simple income multiple — factoring in your existing debts, household size, and a stress test on the rate, the way a real lender's affordability model does.
Applicant 1
Applicant 2
Lenders rarely count bonus, overtime or commission in full — most take roughly half of it, averaged over the last couple of years, to allow for it being less reliable than salary. We apply the same 50% assumption here rather than counting it 1-for-1 with your base pay.
We deduct £175/month per dependent, in line with the modeled cost-of-living amount lenders typically apply — you don't need to work this out yourself.
Know your real household bills? Enter the combined total for everyone living there — one figure covers the whole household, since things like broadband and council tax don't double up with a second person. Not sure, or your bank statements won't reflect it (e.g. someone else currently pays, or you live with parents)? Leave it blank and we'll use a standard assumption instead.
Got more than one personal loan, or more than one car on finance? Just add the monthly payments together — one combined total is all we need. We don't ask for student loan repayments separately, since those already come out before your net take-home pay, which you've entered above. And if any children live with you, they belong in "number of dependents" above — this field is only for maintenance paid for children living elsewhere, which is a separate, real outgoing.
Uses a 4.5x income multiple and a stress test at your rate + 2.5 percentage points — both common industry midpoints, not universal rules. We also automatically hold back a basic living-cost allowance (£850/month, +£400 if joint) before testing what's left against the stressed payment — real lenders always leave room for essentials, not just debts and dependents. Every lender's model differs; this is an estimate to help you plan, not a mortgage offer. Doesn't account for self-employment income averaging, age-related term caps, or credit history.
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