AS | Ankit Sarawagi|Founder, CFOmatrix·August 2026·10 min read | Payroll & Labour Law |
The day your housekeeping, security or packing team crosses a headcount you never counted, contract labour compliance quietly switches on, and the liability for the contractor’s mistakes lands on you.
This guide explains contract labour the way a founder needs it: when the CLRA Act applies, who is the principal employer and who is the contractor, how registration and the contractor licence work, the welfare duties, and the returns you file. Start with the summary, then read the section you need.
- When it applies
- You engage 20 or more contract workers on any day in the last 12 months (some states and the OSH Code: 50).
- Who registers
- The principal employer registers in Form 1; each contractor gets a licence in Form 4.
- Welfare
- Canteen at 100+ workers, plus rest rooms, drinking water, latrines and first aid.
- Returns
- Contractor: half-yearly Form 24. Principal employer: annual Form 25 by 15 February.
- Key risk
- Wage liability if the contractor defaults, and reclassification if “contract” work is really core.
1 Does contract labour law apply to you?
The Contract Labour (Regulation & Abolition) Act, 1970 is the law that governs contract labour in India. It bites on two counts, and you can be caught by either.
- As the principal employer: if 20 or more contract workers are engaged through one or more contractors, on any day in the preceding 12 months.
- As a contractor: if you supply 20 or more workers to someone else, you need your own licence.
Several states have raised the trigger from 20 to 50, including Maharashtra, Gujarat and Rajasthan. The Occupational Safety, Health and Working Conditions (OSH) Code, part of the labour codes in force from 21 November 2025, also sets the threshold at 50. The number that binds you is your state’s, so confirm it before you assume you are below the line.
Kaveri Labs runs a small manufacturing unit with 12 direct employees. It hires a facility vendor for housekeeping (10 workers) and a separate agency for security (12 workers). On peak days, 22 contract workers are on site through the two contractors. In a 20-threshold state, Kaveri has crossed the line and must register as a principal employer, even though not one of those 22 is on Kaveri’s payroll.
2 Principal employer versus contractor
Almost every CLRA obligation hangs on this distinction, so get it clear before anything else.
| Role | Who it is | Main duty |
|---|---|---|
| Principal employer | The company on whose premises the work is done and who benefits from it (you) | Register the establishment (Form 1); ensure welfare and wages; file the annual return |
| Contractor | The intermediary who recruits, supplies and pays the workers | Obtain a licence (Form 4); pay wages on time; maintain registers; file the half-yearly return |
The catch is that the duties are not fully separate. If the contractor fails to pay wages or skips a welfare amenity, the law pushes that duty back onto the principal employer, who must then pay and recover the amount from the contractor. In practice, the founder is the backstop.
3 Registration and the contractor licence
Two documents sit at the centre of CLRA: your registration certificate as principal employer, and the licence each contractor holds. Neither is optional, and engaging contract labour without them is itself the breach.
4 Welfare amenities you must ensure
The contractor provides these facilities; if the contractor does not, the principal employer must, and can recover the cost. The main thresholds are:
- Canteen: mandatory where 100 or more contract workers are engaged and the work is likely to continue for the prescribed period.
- Rest rooms: where workers are required to halt at night, clean, lit and ventilated rest rooms.
- Drinking water, latrines and washing facilities: sufficient and accessible at the workplace.
- First aid: a stocked first-aid box readily available during all working hours.
Brewly, a beverage startup, ramps a seasonal packing line and engages 120 contract workers through a manpower contractor for four months. The canteen threshold (100+) is crossed. The contractor sets up a temporary canteen but skips drinking-water points on the far side of the floor. An inspector flags the gap. Because welfare is ultimately the principal employer’s duty, Brewly installs the water points itself at a cost of ₹40,000 and deducts it from the contractor’s next invoice. The compliance cost lands on Brewly first, whatever the contract says.
5 Registers and returns
CLRA is a paperwork law as much as a headcount one. The records prove, on any given day, who was engaged and whether they were paid and looked after.
Registers to maintain
- Principal employer: a register of contractors, showing each contractor, the work, and the number of workers.
- Contractor: a register of workmen employed, muster roll, wage register, wage slips, and register of overtime, fines and deductions.
Returns to file
| Who | Return | When |
|---|---|---|
| Contractor | Half-yearly return (Form 24) | Within 30 days of the close of each half year (half years begin 1 January and 1 July) |
| Principal employer | Annual return (Form 25) | So as to reach the Registering Officer by 15 February for the previous calendar year |
These are the central-rule forms and dates. State rules can rename the forms or shift the dates, and the labour codes are moving towards combined registers and returns, so confirm the exact position for your state.
6 The misclassification trap
The most expensive CLRA mistake is not a late return. It is dressing up regular, core roles as “contract labour” to save on provident fund, ESI and gratuity.
If the workers labelled contract labour actually do the perennial, core work of the business, under your direction and control, and the contractor is really just a payrolling shell, an inspector or a court can look through the arrangement and treat those workers as your direct employees. The consequences stack up fast.
7 Your CLRA checklist
- Count contract workers across all contractors on peak days; compare against your state’s threshold (20 or 50).
- If over the line, apply for principal-employer registration in Form 1 and keep the certificate ready for inspection.
- Make a valid contractor licence (Form 4 application, licence in Form 6) a written condition of every vendor contract, with the number recorded.
- Ensure welfare amenities: canteen at 100+, rest rooms, drinking water, latrines and first aid.
- Keep the register of contractors; require the contractor’s muster roll, wage register and wage slips.
- Diarise the contractor’s half-yearly return (Form 24) and your annual return (Form 25, by 15 February).
- Review every “contract” role: if it is core, perennial and under your control, fix the classification before an inspector does.
Not sure which rules apply at your headcount?
Use our free Compliance Applicability Checker: enter your team size, state and set-up, and see exactly which labour, payroll and HR filings you owe now, and which switch on as you grow.
Check my compliances8 FAQs
When does the Contract Labour Act apply to my company?
What is the difference between the principal employer and the contractor?
What returns must be filed under the CLRA Act?
What welfare facilities must be provided to contract workers?
Why is misclassifying regular roles as contract labour risky?
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AS | Founder, CFOmatrix | Finance Strategy & Compliance CFOmatrix helps Indian startups build finance, tax and compliance functions that stand up to investor due diligence, from process and controls to the filings and the numbers behind them. |
Disclaimer: This article is general information as of August 2026 and is not legal advice. The Contract Labour Act, its central and state rules, the labour codes and thresholds can change and vary by location. Confirm your specific obligations with a qualified professional before acting.