Who is this calculator built for?
It is built for employed NSMen cases covered by public CPF Ordinary Wage and Additional Wage guidance. It blocks unsupported routes instead of implying entitlement.
Make-up pay calculator
Trace the published employed-NSman make-up pay formula using CPF Ordinary Wages, recurring Additional Wages, Service Pay, and the base NS Pay top-up rule.
Check published MUP estimate
OneNS uses CPF wage data from about two to three months before the activity. Start with the pre-check, then use the math section only when this page says the case is calculable under published rules.
Eligibility pre-check
Dollar results are shown only for employed ORNS/SV cases covered by published CPF OW/AW guidance. Other routes are blocked so the page does not imply an official entitlement.
Calculator decision
Calculable under published rules
The pre-check matches the published employed ORNS/SV rule path.
Formula estimate only; final claim is verified in OneNS/HR/MINDEF.
Estimated NSman creditCredit / covered
$1,195.65
Formula estimate only; final claim is verified in OneNS/HR/MINDEF.
Route: Non-DIRECT credit route. NSman credit route is selected.
Additional Wages from the last 12 months
Include CPF AW such as commissions or variable payments. The estimator only counts recurring AW when it appears in at least 8 of 12 months, then removes the two highest AW months before averaging.
Additional Wage decision
No approved AW added
0 positive months entered. Published recurring-AW treatment starts only from 8 positive months, so the monthly AW basis stays at $0.
Colour guide
How to read the result colours
- Basis / inputCPF wage basis and formula inputs.
- Income loss / shortfallCivilian income loss; amber is a warning cue, not an error.
- Offset / service payService Pay or another amount that offsets the formula.
- Credit / coveredEstimated amount credited or covered under the published path.
- Base NS Pay floorBase NS Pay floor comparison or adjustment.
- No estimate / official checkDollar output is hidden until OneNS, HR, or MINDEF checks the case.
Civilian income basisBasis / input
$2,750
OW plus approved monthly AW. Approved AW: $0 from 0 approved months.
Civilian income lossLoss / shortfall
$1,195.65
Income basis prorated by 10 of 23 working days.
Service Pay offsetOffset / service pay
$493.55
Monthly Service Pay prorated by 12 of 31 calendar days.
Make-up pay formula amountFormula amount
$702.1
Civilian income loss minus Service Pay, floored at $0.
Base NS Pay floor adjustmentBase NS Pay floor
$0
Adjustment needed for the estimated NSman credit to reach $619.35.
Why these numbers moved
- Additional Wage rule
No Additional Wage is added because fewer than 8 positive AW months were entered.
- Income loss ratio
Civilian income loss uses 10 of 23 working days.
- Service Pay offset
Service Pay offsets the make-up pay formula by $493.55.
- Base NS Pay floor
No Base NS Pay floor adjustment is needed because estimated NSman credit is already at least $619.35.
Formula breakdown
- Basis / inputMonthly civilian basis = OW $2,750 + approved monthly AW $0 = $2,750.
- Loss / shortfallCivilian income loss = $2,750 x 10/23 = $1,195.65.
- Offset / service payService Pay offset = $1,275 x 12/31 = $493.55.
- Formula amountMake-up pay formula amount = max($1,195.65 - $493.55, $0) = $702.1.
- Base NS Pay floorProrated base NS Pay = $1,600 x 12/31 = $619.35.
- Credit / coveredEstimated NSman credit = max(pre-base NS pay $1,195.65, prorated base NS Pay $619.35) = $1,195.65.
- Before your first reservist, validate CPF OW, CPF AW pattern, Service Pay, and actual call-up dates against OneNS.
Audit trail
Copy formula trace for HR / OneNS review
Includes inputs, formulas, route treatment, source links, and the OneNS verification caveat.
Preview copied summary
NSVault Make-Up Pay Calculator audit summary Status: Published employed ORNS/SV formula - verify in OneNS Last checked against official public sources: 2026-05-10 Important: This is a calculator trace under published employed-NSman rules. It is not a guaranteed payout or entitlement; verify the final claim in OneNS or with HR/MINDEF. Employment route: employed Activity type: orns-sv Civilian work-hours overlap: Yes Payment route: Non-DIRECT NSman credit Inputs used: - CPF Ordinary Wage per month: $2,750 - Approved monthly AW: $0 (0 approved months from 0 positive AW months) - Excluded AW total: $0 across 0 months - Working days used: 10/23 - Calendar days used: 12/31 - Monthly Service Pay: $1,275 - Monthly base NS Pay: $1,600 Formula trace: - Monthly civilian basis = OW $2,750 + approved monthly AW $0 = $2,750 - Civilian income loss = $2,750 x 10/23 = $1,195.65 - Service Pay offset = $1,275 x 12/31 = $493.55 - Make-up pay formula amount = max($1,195.65 - $493.55, $0) = $702.1 - Prorated base NS Pay = $1,600 x 12/31 = $619.35 - Estimated NSman credit = max(pre-base NS pay $1,195.65, prorated base NS Pay $619.35) = $1,195.65 Before relying on this trace: - Confirm the CPF OW/AW period used by OneNS or HR. - Confirm actual ORNS/SV working days, calendar days, Service Pay, and base NS Pay. - Treat OneNS, HR, or MINDEF as the final authority for claim approval and adjustments. Official source refs: - MINDEF MUP calculation: https://ask.gov.sg/mindef/questions/cmh4fdaq600nxuk1bt5o1mj3k - MINDEF MUP eligibility and exclusions: https://ask.gov.sg/mindef/questions/cmh4fdaq600o1uk1blrjeoes2 - MINDEF MUP payment route: https://ask.gov.sg/mindef/questions/cmh4fdaq800oxuk1byzp27jf6 - MINDEF base NS Pay: https://ask.gov.sg/mindef/questions/cmh4fdaq600o3uk1bmj48op8h - MINDEF 2025 MUP methodology update: https://www.mindef.gov.sg/news-and-events/latest-releases/26oct25-mq/
Rule version
Last checked against official sources: 10 May 2026
- Covered
- Employed NSman/SV ORNS/SV cases with CPF OW/AW data and overlapping civilian working hours.
- Routed out
- Self-employed, freelance/platform, overseas employer, civil servant/stat board, no-overlap, excluded activities, and unusual wage cases are routed to OneNS, HR, or MINDEF.
This calculator traces official public guidance and deliberately blocks cases where the published employed-NSman CPF OW/AW formula is not enough. OneNS remains the final source for the generated claim and any appeal or adjustment.
Money and claims
What this tool helps you decide
Use this when an employed NSman or HR team needs a transparent estimate before checking the official OneNS make-up pay result.
Estimate civilian income loss for employed ORNS or SV activities.
Separate DIRECT salary continuation from non-DIRECT credit routing.
See when freelance, self-employed, unusual variable pay, or non-overlap cases need official review.
Common questions this page answers
Why does the calculator sometimes refuse to show a dollar amount?
Some cases need official handling, such as self-employment, freelance income, unusual variable pay, or NS activity outside civilian working hours.
Does this replace the OneNS result?
No. It is a formula trace for planning and HR discussion. OneNS, employer DIRECT handling, and official MINDEF records decide the final result.
Official checks
Use these public references as the final check when a score, date, allowance, safety decision, medical context, or claim affects a real NS outcome.