Asset depletion mortgages allow borrowers with significant liquid assets but limited traditional income to qualify for financing. The lender takes the borrower's total eligible assets, subtracts any required reserves, and divides the remainder by the loan term (typically 360 months) to derive a monthly qualifying income. This approach is particularly useful for retired investors, those living off investment income, or anyone who has built significant wealth outside of traditional employment. Asset types typically accepted include bank accounts, brokerage accounts, and retirement funds.