ESI Calculator.

• Wages definition is wider than PF. ESI "wages" includes basic pay, DA, HRA, city compensatory allowance, incentive/production bonus, night-shift and heat/gas/dust allowance, and overtime for contribution purposes (overtime is excluded only from the coverage/eligibility test, not from the contribution calculation). Washing allowance, conveyance allowance, gratuity, retrenchment compensation, encashment of leave and employer PF contribution are excluded.
• The 10-employee threshold is not universal. The Act sets 10 as the default coverage threshold for non-seasonal factories/notified establishments, but several states (Maharashtra and Chandigarh among them) apply 20. Confirm the state notification before signing off applicability at the boundary.
• The ceiling-crossing rule protects continuity, not entry. An employee already covered who crosses the ceiling mid-period stays covered (and contributions continue on actual wages) until the period ends. A NEW employee joining above the ceiling mid-period is never covered for that spell — the rule only carries existing members through.
• Persons-with-disability ceiling: ₹25,000/month, against the general ₹21,000 — verify the disability qualifies under the notified categories before applying the enhanced ceiling.
• Labour-code transition: effective 21 November 2025, the ESI Act 1948 stands repealed and its provisions carried into the Code on Social Security, 2020. The rates, ceilings and thresholds above reflect what was carried forward at implementation — the Code also introduces a narrower general "wages" definition (basic + DA + retaining allowance, with allowances beyond 50% of total remuneration added back) that regulators are expected to phase in for contribution purposes. Confirm current rules before relying on this for a live compliance call.

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How ESI contribution is computed

The Employees' State Insurance Act 1948 (now carried into the Code on Social Security, 2020, effective 21 November 2025) applies to non-seasonal factories and notified establishments employing 10 or more persons — some states (notably Maharashtra and Chandigarh) apply a 20-employee threshold instead, so the applicable state notification must be checked. Coverage is further limited to employees drawing gross wages up to ₹21,000 per month (₹25,000 for persons with disability, effective 1 April 2017 for the general ceiling raised from ₹15,000, and enhanced separately for disability).

Covered employees contribute 0.75% of gross wages and the employer contributes 3.25% — a combined 4% rate effective 1 July 2019 (reduced from the earlier 1.75%/4.75%). "Wages" for ESI is wider than the PF definition: it includes basic pay, dearness allowance, HRA, city compensatory allowance, incentive and production bonus, and overtime for contribution purposes (though overtime is excluded from the initial coverage/eligibility test). Washing allowance, conveyance allowance, gratuity, retrenchment compensation, and leave encashment are excluded.

ESI runs on two fixed six-month contribution periods — 1 April to 30 September, and 1 October to 31 March — each mapped to a corresponding benefit period six months later. The key continuity rule: once an employee is covered and their wages rise above the ceiling DURING a running contribution period, coverage and contribution continue on actual wages until that period ends; the employee drops out of ESI only from the start of the NEXT contribution period, not from the month of the raise. Contributions are remitted within 15 days of the following month under Regulation 31 of the ESI (General) Regulations.

Worked example — employee crossing the ceiling mid-period

An employee earns ₹18,000/month gross at the start of the April–September contribution period. A July increment takes gross wages to ₹23,000/month, above the ₹21,000 ceiling.

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