If you pay $750 in rent, why can't you get a mortgage for that amount?

Key Mortgages explanation of when regularly paying weekly rent, is that enough to prove to the bank that I can afford a mortgage at that repayment level?
September 9, 2024

First-home buyers often struggle to demonstrate mortgage affordability despite having paid high rent, because banks require more extensive financial assessments. These assessments include additional costs like rates, insurance, and maintenance, and banks apply higher interest rates for stress testing to ensure borrowers can handle future fluctuations. This makes the transition from renting to owning more challenging than it might seem based on rent payments alone.

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