Questions
Related guides
Mortgage & bills split calculator
Run your numbers live and share a scenario link.
How the maths works
Mortgage formula, totals, leftovers, and what’s included.
50/50 vs proportional vs custom splits
Choose a split that feels fair and stays sustainable.
Stress test for rate rises and one income
+1% / +2% and one-income checks in plain English.
Split the mortgage by income (UK)
Proportional splits explained with worked examples.
Proportional bills split calculator guide
Turn take-home pay into a clean monthly split.
66/33 vs 50/50 split for couples
When a custom split beats proportional (and when it doesn’t).
How much house can we afford (and still save)?
Affordability framing using leftovers + a savings goal.
Stamp Duty (SDLT) calculator for couples
Standard vs first-time buyer relief + surcharges.
60/40 bills split guide
A simple compromise between 50/50 and proportional.
Tip: open a guide in one tab and the calculator in another to compare options quickly.