How much kids reduces your borrowing power at the bank
I see a lot of comments along the lines of “once you’ve got kids, borrowing power falls off a cliff”. It doesn’t. It steps down.
To put real numbers around it, here’s a simple benchmark using a major bank.
Two adults earning $100k each. No other debts. Normal living expenses. Employed FT and healthy deposit.
Here’s how borrowing capacity changes as dependants increase:
| Kids (dependent) | Borrowing capacity | Total reduction vs no kids |
|---|---|---|
| 0 | $1.046m | – |
| 1 | $997k | −$49k |
| 2 | $957k | −$89k |
| 3 | $929k | −$117k |
| 4 (strong swimmers) | $902k | −$144k |
That works out to roughly $35–50k of borrowing power per child. It’s not a sudden drop and it’s not punitive. Each dependant just adds an assumed cost into the living expenses benchmark.
Keep in mind that this number could fall further if you have private school fees or if living costs are higher than the bank benchmarks.
There are options where banks can include private school fees in benchmarks, but those lenders are very limited.