Ask five people how the SSS pension is computed and you'll get five answers. That's because there isn't one formula — there are three, SSS calculates all of them, and it pays you whichever comes out highest.
Once you know that, the whole thing stops being mysterious. This guide walks through each formula, shows which one wins in which situation, and works through three real examples end to end.
- 3 formulas Computed every time — SSS pays the highest result
- 120 Contributions needed for a pension. Below that, it's a lump sum
- ₱1,000 Added to every retirement pension, on top of the formula
- 13 Payments a year — there's a 13th month pension every December
The short answer
SSS computes: (A) ₱300 + 20% of your AMSC + 2% of your AMSC for every year of service past 10; (B) 40% of your AMSC; and (C) a flat ₱1,200 or ₱2,400 minimum. Whichever is largest becomes your basic monthly pension. Then SSS adds ₱1,000, plus a dependent's pension if you have children under 21. On a ₱20,000 salary credit with 30 years of service, that's ₱13,300 a month.
Two Terms You Need First: AMSC and CYS
Every formula below runs on these two, and both are routinely misread.
AMSC — Average Monthly Salary Credit. Not your salary. Your salary credit is the ₱500-step bracket your salary falls into, and the AMSC is the average of those brackets across the contributions that count toward your pension. If you earned ₱20,000 steadily for your whole career, your AMSC is ₱20,000. If your salary climbed over time, it's somewhere in the middle of that range — which is why long careers that started at low salaries produce lower AMSCs than people expect.
CYS — Credited Years of Service. Roughly your total posted contributions divided by 12. Three hundred contributions is about 25 years. SSS's official count has some wrinkles around contributions made before 1985, so treat your own division as an estimate and confirm the official number in your My.SSS record.
Check your record before you plan around a number
Employers sometimes deduct contributions and remit them late, or not at all. Those months don't count until they're posted. Pull up your contribution record in My.SSS years before you plan to retire, while there's still time to chase a gap.
The Three Formulas, and What Each Protects
Each formula exists to protect a different kind of member. That's why there are three.
Formula A — the long-service formula
₱300 + (20% × AMSC) + (2% × AMSC × [CYS − 10])
This one rewards years. Every year of service past the tenth adds another 2% of your AMSC to your monthly pension, permanently. On a ₱20,000 AMSC, each extra year is worth ₱400 a month for life. This formula usually wins for anyone who worked past roughly 20 years.
Formula B — the higher-earner floor
40% × AMSC
Flat 40%, no years component at all. This protects members with a decent salary credit but a shorter record — someone who hits exactly 10 years of service would get a poor result from Formula A, so Formula B carries them instead.
Formula C — the minimum pension
₱1,200 if you have at least 10 CYS · ₱2,400 if you have at least 20 CYS
A flat floor with nothing to compute. This catches low-salary members whose percentage-based results would otherwise be very small. Someone with a ₱5,000 AMSC and 20 years of service gets ₱2,400 here, beating both of the other formulas.
Which Formula Wins, and When
Here's the pattern at a ₱20,000 AMSC — the basic pension before the ₱1,000 addition — as years of service climb:
Basic monthly pension at a ₱20,000 AMSC, by Credited Years of Service
Below about 20 years, extra service adds nothing — Formula B is flat. Past the crossover, every year is worth another 2% of AMSC for life.
That crossover matters if you're deciding whether to keep contributing. Between years 10 and 19 at this salary credit, additional contributions don't raise the monthly pension at all, because Formula B is holding the floor. From year 20 onward, every single year adds real money.
What Gets Added After the Formula
The formula result is your basic monthly pension. Three things sit on top of it.
| Addition | Amount | Who gets it |
|---|---|---|
| Additional benefit | ₱1,000 a month | Every retirement pensioner, regardless of salary or years |
| Dependent's pension | 10% of the basic pension, or ₱250 per child — whichever is higher | Up to 5 children under 21, unmarried and not gainfully employed |
| 13th month pension | One extra full month | Every pensioner, released each December |
The 13th month is the one people forget when budgeting. A pension year is 13 payments, not 12 — so multiply your monthly figure by 13, not 12, when working out annual income.
Three Worked Examples
Example 1 — ₱20,000 AMSC, 30 years, no dependents
| Formula A: 300 + (20% × 20,000) + (2% × 20,000 × 20) | ₱12,300 |
| Formula B: 40% × 20,000 | ₱8,000 |
| Formula C: 20+ years minimum | ₱2,400 |
| Basic pension — highest of the three | ₱12,300 |
| Additional benefit | + ₱1,000 |
| Monthly pension | ₱13,300 |
| A full year (× 13) | ₱172,900 |
Example 2 — ₱10,000 AMSC, 15 years, 2 dependent children
Here Formula B wins, which surprises people who assume the long-service formula always dominates.
| Formula A: 300 + (20% × 10,000) + (2% × 10,000 × 5) | ₱3,300 |
| Formula B: 40% × 10,000 | ₱4,000 |
| Formula C: 10+ years minimum | ₱1,200 |
| Basic pension | ₱4,000 |
| Additional benefit | + ₱1,000 |
| Dependent's pension: 10% × ₱4,000 = ₱400 each, × 2 children | + ₱800 |
| Monthly pension | ₱5,800 |
| A full year (× 13) | ₱75,400 |
Example 3 — ₱5,000 AMSC, 20 years, no dependents
Here the flat minimum wins — the case it was written for.
| Formula A: 300 + (20% × 5,000) + (2% × 5,000 × 10) | ₱2,300 |
| Formula B: 40% × 5,000 | ₱2,000 |
| Formula C: 20+ years minimum | ₱2,400 |
| Basic pension | ₱2,400 |
| Additional benefit | + ₱1,000 |
| Monthly pension | ₱3,400 |
Try your own figures on the SSS retirement pension calculator — it shows all three formula results side by side and marks which one applies to you.
Why the Pension Stops Growing at a ₱20,000 Salary Credit
The 2026 contribution schedule goes up to a ₱35,000 Monthly Salary Credit. But the pension formulas cap out at ₱20,000, so the basic pension tops out at about ₱16,300 even after 40 years of service.
That cap matters less than it looks, because your contribution splits between two funds:
| Regular SS Program | Mandatory Provident Fund (WISP) | |
|---|---|---|
| Applies to | MSC from ₱5,000 to ₱20,000 | The MSC portion from ₱20,000 to ₱35,000 |
| Pays | The formula pension above, plus sickness, maternity, disability | A separate retirement payout: your contributions plus investment earnings |
| How it's computed | The three formulas | Account balance — no formula |
So a high earner doesn't lose the extra contributions. They collect two retirement payouts: the formula pension, capped as above, plus whatever their MPF account has grown to. The 2026 SSS contribution table guide shows the split at every bracket.
When You Can Claim It
| Situation | Age | Condition |
|---|---|---|
| Optional retirement | 60 | You must be separated from employment and not self-employed |
| Technical retirement | 65 | Employed or not — no separation requirement |
| Underground mineworkers | 55 | Special retirement age |
| Surface mineworkers | 50 | Special retirement age |
| Racehorse jockeys | 55 | Special retirement age |
The 120-contribution requirement applies in every one of these cases.
If You're Short of 120 Contributions
Below 120 posted contributions, SSS doesn't pay a monthly pension. It pays a one-time lump sum equal to everything you contributed plus the interest it earned — and that's the end of it.
The gap between those two outcomes is enormous. A pension of ₱8,000 a month, paid across 20 years of retirement, comes to more than ₱2 million once the 13th months are counted. A lump sum is bounded by what you actually paid in — for most members, a small fraction of that.
You can close the gap — but only before you file
If you're short, you can keep paying as a voluntary member until you reach 120. Plenty of members a few years shy do exactly this, and it's usually the highest-return decision available to them. But once you file and are granted a lump sum, that's final — you can't convert it into a pension afterward. Count your contributions before you file anything.
Bottom Line
- SSS computes three formulas and pays the highest. Formula A rewards long service, Formula B protects higher earners with shorter records, and Formula C is a flat minimum floor.
- At a typical salary credit, Formula B holds flat until about year 20, after which Formula A takes over and every extra year adds 2% of your AMSC for life.
- Every pensioner gets ₱1,000 on top, plus a dependent's pension for up to 5 children, plus a 13th month pension each December — so a year is 13 payments.
- You need 120 posted contributions. Below that it's a lump sum, and the decision is irreversible once you file.
- The formulas cap at a ₱20,000 AMSC, but contributions above that build a separate Mandatory Provident Fund payout you collect as well.
- Run your own numbers on the SSS retirement pension calculator, and check which salary bracket you're contributing into with the SSS contribution calculator.
Sources
- Social Security System — Retirement Benefit: the three pension formulas, retirement ages, the 120-contribution requirement, the ₱1,000 additional benefit, the 13th month pension, and the dependent's pension.
- SSS Circular No. 2020-032 — sets the Regular SS Program salary credit used in benefit computation at a maximum of ₱20,000, with contributions above that directed to the Mandatory Provident Fund.
- Republic Act No. 11199 — the Social Security Act of 2018, which governs the retirement benefit, the Monthly Salary Credit structure, and the provident fund layered above it.