Sri Lanka Widows' & Orphans' Pension (W&OP) Calculator

The W&OP pension is computed in five steps that mirror Pensions Circular 02/2015 (Article 4) and Pensions Circular 03/2016 (Article 7). The same formula structure applies to all three scheme variants — only the spouse/children share fraction changes.

1. Pick the right scheme.The date the officer first joined public service decides which Act applies: W&OP-I for male officers appointed on or before 31 December 1982; W&OP-II for officers of any gender appointed 1 January 1983 to 31 December 1995; PSPS-W&OP for entrants on or after 1 January 1996. The calculator flags any mismatch between the scheme selector and the joining date.
2. Determine pensionable salary. Strictly the average of the consolidated monthly salary in the last 36 months of service (Public Administration Circular 03/2016). The last drawn figure is a close proxy for officers with a flat salary in the run-up to death or retirement; for officers who got large recent promotions it will overstate the true average — recompute by hand from your salary history if accuracy matters.
3. Compute the contributor's notional full pension. notional = pensionable_salary × (service_months ÷ 360), clipped at 90% of pensionable salary. The 360-month denominator is the statutory full-service line — 30 years of contributory service brings the multiplier to 1.0 — and the 90% cap is the same maximum applied to the officer's own retirement pension under the Establishment Code, Chapter XLVIII.
4. Apply the survivor split.Under W&OP-I and W&OP-II the surviving spouse receives one-third of the notional full pension and the eligible children share another one-third equally. Under PSPS-W&OP the fraction is one-half on each side. A child is eligible if under 18, or under 26 and enrolled in full-time recognised education, or recognised as disabled for life (Pensions Circular 02/2015, Schedule II). A spouse who has remarried after the officer's death forfeits the share — the leftover does notredistribute to the children, and an ineligible child's leftover does not redistribute to the spouse.
5. Sum the household total and check the cap.The household total cannot exceed the contributor's notional full pension. The calculator flags any breach and clips automatically. It then multiplies the monthly figure by 12 to produce the annual entitlement.

The calculator also exposes a percentage-of-salary form of the same formula — household_monthly = salary × min(service_months ÷ 360, 0.9) × total_share_fraction — which the Department of Pensions sometimes uses in its sample worksheets. Both methods produce the same answer; the result panel shows the cross-check so you can verify the bracket walk against the percentage formula in a single glance.

What this calculator does not cover

Armed-forces and police survivor pensions use separate codes administered by the Ministry of Defence and the Police Pensions Branch and are out of scope here. Pre-1898 colonial pension grants are handled directly by the Director of Pensions on a case-by-case basis. Disputed eligibility (common-law spouses, contested marriages, posthumous children) is also a Director's decision. The calculator estimates the recurring monthly W&OP component only — one-off death gratuities, EPF and ETF lump sums payable on the officer's death are computed separately by the linked EPF / ETF calculator and the gratuity calculator. The contributor's own retirement pension is estimated by the government pension calculator.

Edge cases the calculator handles

(1) Service exactly at the 360-month line — the multiplier hits 1.0 and the 90% cap then trims the notional to 0.9 × salary, which is the point where the cap first bites. (2) Service in excess of 360 months — the multiplier would exceed 1.0, but the cap clips it back to 0.9. (3) A spouse remarried after the officer's death — the spouse share goes to zero, the children continue at one-third (or one-half under PSPS) of the notional split equally. (4) A child whose 18th birthday falls between two calculations — toggle "in full-time education" on to extend the share to 26, off to lapse it immediately. (5) A spouse and several children where one child is aged 26 and not in education — that child shows as ineligible and the rest split the pool, but the released share does not roll up to either the spouse or the other children, exactly as Schedule II of Pensions Circular 02/2015 prescribes.

Three scenarios that map to the most common W&OP cases the Department of Pensions processes, worked end-to-end. Plug each set of inputs into the calculator above — the household figure should match the numbers below to the rupee, and the cross-check banner should read green.

• Department of Pensions of Sri Lanka — official site
• Department of Pensions — Widows' & Orphans' Pension scheme overview
• Ministry of Public Administration — Establishment Code & circulars
• Inland Revenue Department of Sri Lanka — Inland Revenue Act No. 24 of 2017

The scheme fractions, 360-month denominator, 90% statutory ceiling and child eligibility cut-offs on this page were last cross-checked against Pensions Circular 02/2015 (survivor benefit formulas), Pensions Circular 03/2016 (PSPS-W&OP component) and Public Administration Circular 03/2016 (pensionable salary definition) on 2026-05-17.