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SSS Salary Loan Calculator: The Worked Example

Contents

An SSS salary loan calculator answers one question: what will my monthly amortization be? The SSS computes it for you in the portal, but you can price any loan before you file with three inputs: the loan amount (one or two of your average monthly salary credits), the 8% annual rate on a diminishing balance, and the 24-month term. This page shows the full worked example so you can reproduce it. Checked September 2026.

The three inputs of the calculator

Input Value Source
Loan amount One or two AMSCs, gated by 36/72 posted contributions sss.gov.ph
Interest 8% per year, diminishing balance (qualified members) sss.gov.ph
Term 24 equal monthly amortizations sss.gov.ph

The worked example: ₱20,000 over 24 months

Take a member whose one-month entitlement is ₱20,000, at the qualified 8% rate, over the standard 24 months. The standard amortization formula: monthly payment = principal × monthly rate ÷ (1 − (1 + monthly rate)^−months). The monthly rate is 8% ÷ 12 ≈ 0.6667%.

The result: a monthly amortization of about ₱905 (our computation). Over 24 months that totals about ₱21,713, so the true interest cost of the loan is roughly ₱1,713 — about 8.6% of the principal across two years. Run the same ₱20,000 through a typical loan app at a published 20% cap and one year alone would cost more than the SSS charges in two.

How to price your own loan

Three steps with the same formula. Find your AMSC in the SSS portal — it anchors the loan amount at one or two times that figure. Fix the term at 24 months and the rate at 8% (or the higher rate if the condonation window applies to you). Then compute, or let our loan calculator do it, using the methodology formula.

What the calculator does not include

Two SSS-specific charges sit outside a plain amortization: the 1% service fee on the original loan amount, deducted at disbursement, and any pro-rated interest deducted for the gap between the loan release and the first amortization month. Both appear on your loan disclosure in the portal. Deduct them mentally from the proceeds to see the true net money.

Frequently asked questions

How is the SSS salary loan monthly amortization computed?

Principal times the monthly rate (8% ÷ 12) divided by the amortization factor for 24 months on a diminishing balance. On a ₱20,000 loan that is about ₱905 a month (our computation).

How much is the interest on an SSS salary loan?

8% per year on a diminishing balance for qualified members. On a ₱20,000, 24-month loan, total interest is about ₱1,713 (our computation) — the principal is the rest.

Why is my SSS loan proceeds smaller than my loan amount?

The SSS deducts a 1% service fee at disbursement, plus pro-rated interest for the period before your first amortization. Your disclosure in the portal shows both deductions.

The bottom line for borrowers

The SSS calculator is three inputs and one formula: amount from your AMSC, 8% a year diminishing, 24 months. On ₱20,000 that is about ₱905 a month and ₱1,713 of total interest — numbers no loan app ceiling can approach. Verified against sss.gov.ph, September 2026.

Sources used for this review