ESI Eligibility and Contribution Rates, Explained

ESI is the statutory scheme Indian payroll teams most often get wrong — not because the rates are complicated, but because eligibility moves. An employee crosses the wage ceiling mid-year, a branch crosses the headcount threshold, a salary revision lands in the middle of a contribution period — and suddenly the question isn’t “what is 0.75% of gross” but “do we even deduct this month, and until when.”

Here is the whole scheme, stated plainly: who is covered, what each side pays, how the contribution calendar works, and the edge cases that generate notices. For how ESI sits alongside PF, PT, and TDS in the monthly close, see our complete guide to payroll compliance in India.

Who is covered

The ESI Act 1948 applies on two axes — the establishment and the employee. Both must qualify.

• Establishment: 10 or more employees (20 or more in some states), in notified areas. Coverage, once attached, continues even if headcount later falls below the threshold.
• Employee: gross monthly wages of ₹21,000 or less. The ceiling is ₹25,000 for persons with disability.

“Gross wages” for ESI is broader than basic + DA — it includes HRA, incentives paid at intervals of two months or less, and most allowances. It excludes annual bonus, gratuity, and encashed leave. This is a different wage base than PF uses, which is why a payroll system has to carry two wage definitions per employee, not one.

The contribution rates

These are the rates in force since the 2019 reduction (from a combined 6.5%), and they remain the 2026 rates. One relief at the bottom of the wage scale: employees earning an average daily wage of up to ₹176 are exempt from the employee share — the employer still pays its 3.25%.

For a ₹20,000 gross salary, that is ₹150 from the employee and ₹650 from the employer — ₹800 a month buying full medical care for the employee and their dependents. Whatever else one says about Indian statutory deductions, ESI is cheap insurance.

The contribution calendar — where the edge cases live

ESI runs on two six-month contribution periods: April to September, and October to March. Each maps to a benefit period starting three months after it closes (January–June and July–December respectively).

This calendar produces the rule that trips up most payroll teams:

• An employee who crosses ₹21,000 mid-period — say an increment in June takes them to ₹24,000 — remains covered, and contributions continue on the full higher wage, until the contribution period ends in September. Coverage stops only from the next period.
• Stopping the deduction the month the salary crosses the ceiling is a compliance breach, not a kindness. ESIC’s inspection software flags exactly this pattern.

What employees get for it

The benefit stack is wider than most employers realise:

• Medical benefit — full medical care for the insured person and dependents, from day one of insurable employment, with no ceiling on treatment cost.
• Sickness benefit — cash compensation around 70% of wages for up to 91 days a year.
• Maternity benefit — paid leave at full wage rates, subject to contribution conditions.
• Disablement benefit — for employment injury, temporary or permanent.
• Dependants’ benefit — a monthly pension to the family if death results from employment injury.
• Funeral expenses — a lump-sum payment to the family.

Registration: the part that happens before the first deduction

Coverage obligations start at registration, and the timelines are short. An establishment that becomes coverable must register on the ESIC portal within 15 days of the Act applying to it; registration is online against the company’s PAN, and the establishment receives a 17-digit employer code that prefixes every subsequent filing. Each covered employee is then registered with their Aadhaar and family details, generating an insurance number that follows them across employers — the ESI counterpart of the UAN.

The registration trap for growing companies is the branch problem. ESIC applicability is assessed where the employees actually work, so a company registered in Bangalore that opens a 12-person support office in Indore has a fresh registration obligation in a new region — one that nobody owns unless the payroll system is watching headcount per location. The second trap is timing: a new joiner’s details must be registered within 10 days of appointment, which makes ESI part of the onboarding checklist, not the month-end one.

Deadlines and the cost of missing them

Contributions for a month must be deposited by the 15th of the following month via the ESIC portal — the same rhythm as PF, which is why most payroll calendars treat the 15th as the statutory cliff. Late payment draws interest at 12% per annum plus damages that scale with the delay, up to 100% of the contribution in arrears. There is also a sharper edge: the employee share, once deducted, is held in trust. Deducting it and not depositing it is a criminal offence under the Act, not merely a civil default.

Getting the deduction right, automatically

Every ESI mistake we see in the wild traces back to one of three causes: the wrong wage base (using basic instead of gross), a mid-period exit from coverage, or a new branch crossing the headcount threshold without anyone registering it. All three are determinable from data payroll already holds — which is an argument for software, not vigilance. EmployeeSight applies the ₹21,000 test per employee per period, keeps contributions running to the end of the period after a ceiling-crossing increment, and generates the ESIC deposit file alongside the EPFO one.

And because ESI eligibility is a function of how the CTC lands as gross monthly wages, the structure decision comes first. Run any offer through the salary breakup calculator to see where gross falls against the ₹21,000 line — an offer at ₹21,500 gross and one at ₹20,800 gross are different compliance regimes wearing similar price tags.

FAQ

Is ESI calculated on basic salary or gross salary?

Gross. ESI contributions apply to total gross wages — basic, DA, HRA, and most allowances — not just basic + DA. This differs from PF, which uses basic + DA.

What happens when an employee’s salary crosses ₹21,000?

Coverage and contributions continue on the full new wage until the end of the current contribution period (September or March). The employee exits the scheme only from the start of the next period.

Is ESI registration required with fewer than 10 employees?

Generally no — the Act attaches at 10 employees (20 in some states). But once an establishment is covered, it stays covered even if headcount drops below the threshold later.

Can an employer pay the employee’s ESI share?

An employer may absorb the cost commercially, but the contribution must still be reported in the employee’s name. Employees with an average daily wage up to ₹176 are statutorily exempt from their share; the employer share still applies.