That depends. According to Pag-IBIG, you can only borrow up to an amount with a monthly amortization of at most 35% of your gross monthly income.
If you wish to repay your ₱500,000 loan for a repayment period of 30 years at a 10% interest rate, you should be earning a gross monthly income of at least ₱12,536.74 to qualify. If for 10 years (7.375%), your monthly income should be at least ₱16,864.34. Read more