Co-signer

A co-signer adds their income and credit strength to the application to push debt ratios into qualifying range — common for first-time buyers and newcomers whose own income or history isn't quite enough yet.

It's a real obligation, not a formality. The co-signer is fully liable: the mortgage appears on their credit report, affects their own borrowing capacity, and a missed payment hits their score too. Many families add the co-signer to title to match that liability.

The usual plan is to refinance the co-signer off the mortgage in a few years once the primary borrower's income or credit supports it on their own. A co-signer differs from a guarantor, who backs the debt but isn't on title.