Are you know How Long Does A Mortgage Pre Approval Last? The mortgage pre-approval last for a certain time, that is up to three months. Depending on your bank and your financial situation, you may not be able to get approval for a mortgage or loan check within the same timeframe as other lending institutions. When your bank or lender gives you this approval head start, be aware that how long it actually lasts actually depends greatly on your individual bank and your financial situation. For many banks and financial lenders, pre-approved loans or mortgages typically last for at least 60 days to a maximum of ninety days.