How loans affect mortgage eligibility
Card limits, car loans, revolving balances, new applications, and repayments.
Existing debts reduce the mortgage you can be approved for through the debt-service ratio, and even unused card limits, a car loan, revolving balances, and recent applications can all weigh against you — clean these up before applying.
Key points
- Existing debts reduce your approvable mortgage via the debt-service ratio.
- Even an unused card-loan limit can reduce your borrowing headroom.
- A car loan and revolving balances count against you.
- Recent applications and new debt weaken the file — clean up first.
How existing debts count
A mortgage lender counts your existing debts in the debt-service ratio — annual scheduled repayments divided by qualifying income — so a car loan, revolving card-loan balances, and other obligations directly reduce the mortgage you can be approved for. Even an unused card-loan limit can reduce your headroom, because a lender may treat available credit as potential debt. The more of your capacity that is already committed, the less is left for the home loan.
Clean up before applying
Before applying for a mortgage, clean up your debt picture: pay down or close revolving balances, consider closing unnecessary card-loan limits, and avoid taking on a new car loan or other debt in the run-up. Avoid a cluster of new applications, because inquiries are recorded and can look like distress, and do not open new credit between preapproval and closing. The goal is to arrive at underwriting with a low debt-service ratio, clean credit records, and no recent changes that raise questions.
Key points to carry away: Existing debts reduce your approvable mortgage via the debt-service ratio; Even an unused card-loan limit can reduce your borrowing headroom; A car loan and revolving balances count against you; Recent applications and new debt weaken the file — clean up first. Use the linked guides and calculators for the full decision, and confirm anything material with the lender, a licensed broker, a judicial scrivener, or a tax accountant before you act.
Who this is for
- Prospective mortgage applicants
- Anyone with existing consumer debt
What this is not
- Debt-restructuring advice
- Do not open new credit or take a car loan between preapproval and closing; it can undo an approval.
Frequently asked questions
Can card-loan use hurt mortgage approval?
Yes — through the balance, repayment burden, and credit behavior; even an unused limit can reduce headroom.
Can multiple applications affect credit records?
Yes. Application inquiries are recorded for a period, including six months at CIC.
Should I borrow the down payment?
Undisclosed borrowing is dangerous and can cause rejection or misrepresentation concerns.