How much home loan can I actually afford?
TL;DR: A common starting rule is that your total monthly debt payments (including the new home loan) shouldn't exceed roughly 35-40% of your gross monthly income — but the honest answer depends heavily on your other debts, how much you're putting down, and how much financial cushion you actually want, not just what a lender will approve you for.
Why "what the bank approves" isn't the same as "what you can afford"
Lenders typically approve based on debt-to-income ratio (DTI) — a common lender ceiling is around 40-43% of gross income going to all debt payments combined. But that's a risk threshold for the lender, not a comfort threshold for you. Being approved for the maximum doesn't mean it fits your actual lifestyle, especially once property taxes, insurance, maintenance, and the rest of your goals (retirement, an emergency fund, other debts) are accounted for.
A more honest framework
- Start from your other financial commitments — existing debts, how much you want to keep investing, your emergency fund status — not from the loan amount.
- Work out your real monthly capacity for a home loan payment after those commitments.
- Use that capacity, your down payment, and current interest rates to back into a loan amount — rather than starting from a target property price and working forward.
The down payment matters more than people think
A larger down payment doesn't just lower your monthly payment — it directly cuts the total interest paid over the loan's life, since interest compounds on a smaller principal from day one. It can also mean qualifying for a better rate, since a lower loan-to-value ratio is less risk for the lender.
Run your actual numbers
Rules of thumb are a starting point, not a plan — your real affordable range depends on your specific income, existing debts, and down payment. Our Home Loan Prepayment calculator and Flat vs Mutual Fund comparison let you model the real monthly payment and total cost for your own numbers, rather than guessing from a percentage rule.