ESI Due Date: Contribution Rate and Return Filing Guide for 2026

If you run payroll for an Indian business covered under the Employees' State Insurance scheme, one date matters more than any other on your compliance calendar: the 15th of every month. Miss it, and interest and damages start accruing from day one — there is no grace period. This guide covers exactly when ESI contributions are due, who must pay them, current contribution rates, and what happens if you're late.

What is ESI Contribution?

The Employees' State Insurance (ESI) scheme is a self-financing social security and health insurance program for Indian workers, administered by the Employees' State Insurance Corporation (ESIC) under the Ministry of Labour & Employment. It provides medical, sickness, maternity, disablement, and dependant benefits to insured employees and their families.

The scheme is funded through monthly contributions from both the employer and the employee, calculated as a percentage of the employee's gross wages. The employer is legally responsible for deducting the employee's share from wages and depositing both shares — its own plus the employee's — with ESIC every month.

Who Must Contribute

Applicability threshold: Under the ESI Act, coverage is mandatory for all non-seasonal factories employing 10 or more persons. State Governments have extended coverage under Section 1(5) of the Act to shops, hotels, restaurants, cinemas, road-motor transport undertakings, newspaper establishments, private medical and educational institutions, and certain municipal body employees, generally at the 10-or-more-employee threshold. Separately, the Central Government has extended coverage to shops, hotels, restaurants, cinemas, insurance businesses, NBFCs, port trusts, airport authorities, and warehousing establishments employing 20 or more persons, where the Central Government is the appropriate authority.

In short: most factories need 10+ employees to trigger ESI applicability; some categories of commercial establishments under Central Government jurisdiction require 20+. Because the threshold depends on your establishment type and state, confirm your specific case with your regional ESIC office.

Wage ceiling for individual coverage: Once an establishment is covered, any employee earning gross wages up to ₹21,000 per month is mandatorily covered under the scheme. The ceiling is higher — ₹25,000 per month — for persons with disability. These limits have been in effect since 1 January 2017 and remain current.

Employees drawing an average daily wage of up to ₹176 are exempt from paying their own contribution, though the employer must still pay its share for them.

Note: the four new Labour Codes (including the Code on Social Security, 2020, which governs ESI) came into force on 21 November 2025, and the Ministry has since notified the Social Security (Central) Rules, 2026. Detailed state-level rules and the transition of wage-definition provisions are still being operationalised. The figures above reflect the position currently published by ESIC; if your establishment is near a threshold or your compensation structure is unusual, verify current applicability directly with ESIC given this transition.

Due Date

Employers must pay ESI contributions — both the employer's and the employee's share — within 15 days of the last day of the calendar month in which wages are paid. In practice, this means contributions for any given wage month are due by the 15th of the following month. For example, contributions on wages paid for March must reach ESIC by 15 April.

This is governed by Regulation 31 of the Employees' State Insurance (General) Regulations, 1950. Note that this 15-day period is itself the result of a 2017 amendment that shortened the earlier 21-day window — so if you're relying on an old reference document, double-check it reflects the current rule.

There is no statutory grace period. A contribution is treated as paid only when the amount is actually credited to ESIC's account, so employers should not wait until the last day to initiate payment, particularly around bank holidays.

Contribution Rates

As per ESIC, effective from 1 July 2019, the current contribution rates are:

• Employer's contribution: 3.25% of wages paid or payable to the employee
• Employee's contribution: 0.75% of wages paid or payable
• Total: 4% of gross wages

These rates have remained unchanged since July 2019. Employees earning an average daily wage up to ₹176 are exempt from their 0.75% share; the employer still contributes its 3.25% for them.

Penalty and Interest for Late Payment

Late payment of ESI contributions attracts two separate charges:

1. Interest (Regulation 31-A): An employer who fails to pay contributions within the period specified in Regulation 31 is liable to pay simple interest at 12% per annum for each day of default or delay.

2. Damages (Regulation 31-C): Separately, ESIC may levy damages, graded by how long the payment is overdue, up to the following maximum rates:

Damages can be partially or fully waived in specific circumstances, such as for sick industrial companies under an approved rehabilitation scheme. Unpaid interest and damages can be recovered as arrears of land revenue.

Because these are statutory maximums and enforcement details can be revised, always check the current position on the ESIC portal or with your regional office before assuming a specific figure applies to your case.

How to File

1. Register your establishment on the ESIC employer portal and obtain your 17-digit Employer Code, if not already registered.
2. Log in to the ESIC employer portal with your code, username, and password.
3. File the monthly contribution by selecting the relevant wage month and either uploading employee wage data or entering it online.
4. Generate the challan for the amount payable (employer + employee share) for that month.
5. Make the payment online before the 15th of the following month, typically through net banking (e.g., via SBI) linked to the portal.
6. Retain the receipted challan as proof of payment — this is required when filing the half-yearly return of contributions.
7. File the return of contributions for each six-month contribution period (April–September and October–March) within the prescribed period after the period ends, along with receipted challan copies.

Frequently Asked Questions

Q: What if the 15th falls on a Sunday or public holiday?

A: Employers should aim to complete payment on or before the 15th regardless, since ESIC treats a contribution as paid only once it's credited to its account — banking cut-off times and holidays can cause an otherwise-timely payment to land late. Don't rely on an automatic extension; initiate payment a day or two early to be safe.

Q: Do I need to pay ESI for an employee who now earns above ₹21,000 after a raise?

A: Once an employee is covered under ESI, coverage does not stop immediately when wages cross the ceiling mid-contribution-period. The employee continues to be covered, and contributions remain payable, until the end of the current six-month contribution period (April–September or October–March).

Q: Is there a grace period for ESI payment?

A: No. Unlike some other statutory dues, the ESI Act does not provide a grace period. Interest under Regulation 31-A begins accruing from the day after the due date.

Q: What wage components count for calculating ESI contribution?

A: Broadly, "wages" for ESI purposes includes basic pay, dearness allowance, house rent allowance (where paid in cash), overtime, and most regular cash allowances paid at intervals of two months or less. Items like annual bonus, retrenchment compensation, gratuity, and leave encashment are generally excluded. Because ESIC has issued detailed instructions on specific allowances, check the current wage-classification guidance on the ESIC website for anything not clearly basic pay or DA.

Sources

• ESIC – Contribution — contribution rates (3.25% employer / 0.75% employee, effective 01.07.2019), the ₹176 exemption threshold, and the 15-day payment rule.
• ESIC – Coverage — applicability threshold (10+ employees for factories, 20+ for certain Central Government-notified establishments) and wage ceiling (₹21,000, ₹25,000 for persons with disability, effective 01.01.2017).
• ESIC – Wages — definitions of what counts as "wages" for contribution purposes (HRA, overtime, bonus exclusions, etc.).
• Employees' State Insurance (General) Regulations, 1950 — official text — Regulation 31 (time for payment), 31-A (12% p.a. interest), 31-C (graded damages table).