Sri Lanka SSCL Calculator (Social Security Contribution Levy)

The Social Security Contribution Levy is a single flat rate of 2.5% applied to the liable turnoverof every taxable person carrying on a taxable activity in Sri Lanka. The statutory basis is Section 6 of the Social Security Contribution Levy Act No. 25 of 2022; what changes from one business to another is what counts as "liable turnover." The Act answers that in Schedule II by assigning a deemed-liable percentage to each activity class.

The calculator walks the five steps the IRD publishes in its SSCL guidance:

1. Pick the activity class. A taxable person can only belong to one class for SSCL purposes. If you supply both goods and services, the dominant activity rules apply — confirm with your accountant.
2. Start with total turnover for the period. For quarterly filers this is the three-month figure; for annual self-review use the full year. Foreign-currency receipts are first translated to LKR at the transaction-date exchange rate.
3. Subtract exempt and zero-rated supplies listed in the First Schedule (selected foods, fuel, pharmaceuticals, and supplies to specified entities). The result is net turnover.
4. Apply the Schedule II deemed-liable percentage:
   • Service provider: 100% of net turnover
   • Manufacturer: 85% of net turnover
   • Wholesaler: 50% of net turnover
   • Retailer: 25% of net turnover
   • Distributor: 25% of net turnover
   • Importer: 100% of net turnover
   The product is your liable turnover.
5. Apply the rate. SSCL payable = liable turnover × 2.5%. For tax-inclusive invoices, the same number is recovered by inclusive × 2.5 ÷ 102.5 — the calculator displays both as a cross-check.

The registration trigger sits at Rs 15,000,000 of liable turnover in any quarter (equivalent annual: Rs 60,000,000). The Act reads "exceeds", so a business sitting exactly at the threshold is not yet required to register — but crossing it in a single quarter is the trigger, not the average across the year. Late registration attracts a penalty, so the safer practice is to register the moment any quarter crosses the line.

SSCL is paid alongside VAT, but the two are independent levies that sit on the same invoice without offsetting each other. VAT is an input-output tax: you charge 18% on outputs and reclaim the VAT on your inputs, so only the value you add is taxed. SSCL has no input credit — the 2.5% bites on liable turnover at each stage it is charged, which is why it is described as a cascading levy. If you need the VAT line for the same supply, the Sri Lanka VAT calculator adds or removes 18% from any amount, and the income tax calculator covers the corporate or personal tax that applies to the profit underneath.

Two practical points decide whether you owe SSCL at all. First, SSCL is a quarterly tax: the return and payment are due by the 20th of the month after each quarter closes, so Q1 (January–March) is due by 20 April and the same pattern repeats through the year. Second, liability is tested per period, not on a rolling average — a single quarter whose liable turnover exceeds Rs 15,000,000 pulls you into the net even if the rest of the year is quiet. Late registration and late payment both carry penalties calculated on the unpaid tax, so the cautious move is to register as soon as any quarter crosses the line.

Sectoral nuances — financial services, life insurance, telecom levy interactions, supplies to BOI enterprises, and supplies inside a licensed zone — sit in Section 12 and beyond, and need an accountant's read on your facts. Exporters of services who invoice in foreign currency translate each receipt to rupees at the transaction-date rate before any of this runs; freelancers and remote workers can pair this tool with the Sri Lanka freelancer tax calculator to see the income-tax side of the same earnings.

• Social Security Contribution Levy Act No. 25 of 2022 — full text
• Inland Revenue Department — SSCL overview
• IRD — SSCL guidelines, forms and Schedule II liable turnover table
• Inland Revenue Department of Sri Lanka — official site

Rates, thresholds and Schedule II percentages on this page were last cross-checked against the IRD SSCL pages and the Act on 2026-05-12. The tool is reviewed each quarter and after any Inland Revenue (Amendment) Act that touches SSCL.