วิธีการคำนวณ How Much Can I Borrow?

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A loan affordability calculator determines the maximum loan amount you qualify for, given your income, existing debts, and the lender's debt-to-income (DTI) limits. Banks typically require total monthly debt payments to be below 36–43% of gross monthly income.

คำแนะนำทีละขั้นตอน

1. 1Max monthly payment = Gross monthly income × DTI limit − Existing monthly debts
2. 2Maximum loan = Monthly payment × ((1 − (1+r)^(−n)) / r)
3. 3Front-end DTI: housing costs only ≤ 28% of income
4. 4Back-end DTI: all debts ≤ 36–43% of income (lender-dependent)

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