See your monthly amortization, the total you'll pay and the real effective interest rate behind a monthly add-on rate. Check whether a "0%" plan is really free once fees and the straight price are counted.
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Many card installment programs are priced with a monthly add-on rate. The bank charges that percentage on the original amount every month for the whole term, then splits the total into equal monthly amortizations. A 0% plan is the same math with the add-on set to zero.
The add-on is charged on the full amount every month, but you're paying the principal down the whole time. By the last month you owe almost nothing, yet you're still paying add-on on the original price. That's why the effective interest rate (EIR), which is based on what you actually still owe, is far above the quoted rate: about 1.5 times the add-on on a 3-month plan and about 1.7 to 1.8 times on plans of 6 to 36 months.
Example (made-up numbers): ₱24,000 over 12 months at a 1% monthly add-on rate. The add-on is ₱240 a month, so the amortization is ₱2,000 + ₱240 = ₱2,240, and you pay ₱26,880 in total. Solving for the effective rate gives about 1.79% a month, or about 21.5% a year, not 1% and 12%. The BSP's own FAQ works the same way: ₱50,000 over 12 months at 1% comes to ₱4,666.67 a month.
Rules and bank terms checked on October 21, 2026. Fees change, so confirm with your bank before you sign up.
Our guide on whether 0% credit card installment is really free covers how installments work in the Philippines, the hidden costs, and when to save first instead. New to the terms? See installment plan, credit limit and APR.
Hunter Vault is our own budgeting app. Add each plan as a CC installment Dungeon Raid and it shows "Installment 3 of 12" progress, with an optional reminder before each due day. You log payments yourself; it never connects to your bank. Free to start, and budgeting never requires a subscription.
Download Hunter Vault FreeThis calculator gives estimates for information only. It assumes equal monthly amortizations, an add-on rate charged on the original amount, any one-time fee paid at the start, and no late or early payments. Banks set their own pricing, fees and rounding, and some quote a monthly effective rate instead of an add-on rate, so your statement and your bank's disclosure are the final word. This is not financial advice.