Labour Codes 2025: All Four Codes In Force, Exam-Ready Notes

In one line: Labour Codes 2025: All four Labour Codes are in force from 21 November 2025 – what each replaces, the key numbers, and exam-ready revision in one hub.

India’s biggest labour-law reform in seven decades is now fully live. From 21 November 2025, all four Labour Codes operate together, folding roughly 44 central labour laws into four consolidated statutes. For commerce students and competitive-exam aspirants, this is the single most examinable reform in Indian labour law. It modernises everything from minimum wages and strike notices to gig-worker social security in one sweeping legislative exercise – and examiners have already begun testing it as facts, numbers and matches.

This hub post gives you the complete architecture of the reform: how the consolidation was designed, what each code contains, which older laws each one replaces, and the numbers examiners love to test. Deeper dives on the older acts absorbed into the codes are linked throughout – the Factories Act, our gratuity guide and the EPF Act explainer – so you can trace how each classic entitlement survives inside the new framework.

The Big Picture: 44 Laws Into 4 Codes

Before 2025, Indian labour law was a patchwork: over 40 central statutes (and hundreds of state amendments) with conflicting definitions of “worker”, “wages” and “establishment”. A single factory often had to maintain separate registers, obtain multiple licences and file different returns under half a dozen laws. The idea of simplification traces back to the Second National Commission on Labour (2002), and the government formally launched a code-consolidation plan in 2015. Here is how the design works:

1. The design. Four codes now govern wages, industrial relations, workplace safety and social security – replacing a web of overlapping, sometimes century-old statutes with a single law per theme.
2. The gain. One registration, one licence and common definitions replace multiple filings. This cuts compliance costs, reduces litigation over definitional conflicts, and improves India’s ease of doing business ranking.
3. The enactment years. The Code on Wages passed first in 2019; the other three codes passed together in September 2020.
4. The long wait. Labour is on the Concurrent List, so all four codes needed rules framed by the Centre and by each state before they could commence. That process took years – culminating in full commencement on 21 November 2025.
5. Why the delay matters for exams. Questions may contrast the enactment dates (2019/2020) with the commencement date (21 November 2025). Keep all three years separate in your notes.

Code on Wages, 2019

The first code passed – and the one that touches every single worker in India, organised or unorganised, salaried or casual.

1. Identity. Act No. 29 of 2019, passed by the Lok Sabha on 30 July 2019 and by the Rajya Sabha on 2 August 2019; received presidential assent on 8 August 2019.
2. What it replaces. Four pay-related laws: the Payment of Wages Act 1936, the Minimum Wages Act 1948, the Payment of Bonus Act 1965 and the Equal Remuneration Act 1976.
3. Universal coverage. Minimum wages and timely payment of wages now cover the entire workforce – all sectors and all employments, with no wage ceiling, organised and unorganised alike. Under the old Minimum Wages Act, coverage was limited to “scheduled employments”; that restriction is gone.
4. Floor wage. The Central Government fixes a national floor wage, factoring in minimum living standards; state governments cannot fix minimum wages below it. States may set higher rates, but the floor sets the national baseline.
5. Common definition of wages. The code standardises what counts as “wages” across all four codes (essentially basic pay plus dearness allowance plus retaining allowance, with allowances capped in the computation), ending one of the oldest sources of litigation.
6. Equal pay. Gender-neutral equal remuneration is retained and strengthened across all employments – recruitment and conditions of service included, not just pay.

Industrial Relations Code, 2020

The most debated of the four codes – it redraws how unions, employers and strikes interact, and it is where most of the criticism and most of the exam numbers sit.

1. Identity. Act No. 35 of 2020, passed by the two Houses on 22-23 September 2020; in force from 21 November 2025.
2. What it replaces. The Trade Unions Act 1926, the Industrial Employment (Standing Orders) Act 1946 and the Industrial Disputes Act 1947.
3. Negotiating union. A union with 51% or more of workers as members becomes the sole negotiating union for the establishment. Where no union crosses that bar, a negotiating council is formed from unions with at least 20% combined membership. This ends the older practice of multiple unions bargaining in parallel.
4. Strike rules. Workers in public utility services – and now more broadly – must give 14 to 60 days’ notice before striking. Crucially, concerted “mass casual leave” by over half the workforce now counts as a strike, closing a loophole employers long complained about.
5. Flexibility threshold. The 300-worker threshold: standing orders, and prior approval for layoff, retrenchment and closure, now apply only to establishments with 300 or more workers, raised from 100 under the Industrial Disputes Act. Critics argue this weakens job security for workers in mid-sized firms; supporters say it encourages hiring. Both sides of this trade-off are excellent mains material.
6. Reskilling fund. Retrenched workers in covered establishments are entitled to reskilling/counselling – a new feature worth one line in longer answers.

OSH Code, 2020

The Occupational Safety, Health and Working Conditions Code merges the widest range of old laws – thirteen of them – into one workplace rulebook.

1. Identity. Act No. 37 of 2020 (Bill No. 122 of 2020), passed with the other 2020 codes; in force from 21 November 2025.
2. What it replaces. Thirteen statutes, including the Factories Act 1948, the Mines Act 1952, the Contract Labour (Regulation and Abolition) Act 1970, the Inter-State Migrant Workmen Act 1979 and the Building and Other Construction Workers Act 1996.
3. Factory definition. A factory now means premises with 20 workers (10 with power), widened from the old 10-and-20 thresholds – bringing thousands of smaller units within the safety net.
4. Women at night. Women are permitted to work night shifts with their consent and where the employer provides adequate safety, security and welfare facilities. This is a landmark change from the Factories Act’s blanket prohibition; the older framework is detailed in the Factories Act.
5. One licence. A single registration and a single licence replace multiple registrations across the thirteen repealed laws, and annual returns are consolidated.
6. Applicability. Inter-state migrant workers gain portability of benefits, and contract labour provisions are rationalised under a single licensing framework.

Code on Social Security, 2020

The most future-facing code – it extends social security beyond salaried employees to gig and platform workers for the first time in Indian law.

1. Identity. Act No. 36 of 2020 (Bill No. 121 of 2020); section 142 (linking Aadhaar for benefits) was in force since May 2021, with full operation from 21 November 2025.
2. What it replaces. Nine laws, including the Employees’ Compensation Act 1923, the Employees’ State Insurance Act 1948, the Employees’ Provident Funds Act 1952, the Maternity Benefit Act 1961 and the Payment of Gratuity Act 1972.
3. Gig and platform workers. The first Indian law to define “gig worker” and “platform worker” and to bring them under social security schemes – life and disability cover, health and maternity benefits, old-age protection and education – funded partly by aggregators and government contributions.
4. Aggregator contribution. Aggregators (ride-hailing, food-delivery and similar platforms) contribute 1-2% of annual turnover, capped at 5% of the amounts paid to workers. That two-number formula is a classic exam trap.
5. Gratuity reform. Fixed-term employees – including delivery partners of the platform economy – now earn gratuity on a pro-rata basis, without the old five-year continuity requirement. This builds on the classic entitlement explained in our gratuity guide; the EPF side of the merged law is covered in our EPF Act explainer.

How Exams Probe This Topic

Labour reforms appear in commerce papers (UGC-NET, B.Com, M.Com), UPSC prelims and mains, and every banking and SSC general-awareness section – almost always as numbers, dates and match-the-following items rather than essays.

1. Match-the-following. Expect codes paired with the laws they repeal. Revise each code’s repealed statutes as a single flashcard: Wages = 4 laws, IR = 3, OSH = 13, Social Security = 9.
2. Number traps. 51% sole negotiating union; 20% negotiating council; 300-worker threshold; 14-60 day strike notice; 20-worker factory (10 with power); 1-2% aggregator levy capped at 5%. Examiners deliberately swap these figures between codes.
3. Date traps. The 2019 Wage Code versus the three 2020 codes; the September 2020 passage dates; section 142 in force since May 2021; and 21 November 2025 as the unified commencement date.
4. Committee questions. The Second National Commission on Labour (2002) is the intellectual parent of the codes – a favourite prelims fact. The 2015 simplification plan is its administrative successor.
5. Mains angles. Formalisation of the informal workforce; social security for gig workers; the flexibility-versus-security debate around the 300-worker threshold; and cooperative federalism (why state rules delayed commencement).

Quick Revision: One-Glance Facts

Carry these to the examination hall – everything above collapses into one list of exam-grade facts.

1. The reform. 44 central labour laws consolidated into 4 codes, all fully in force from 21 November 2025.
2. The codes. Code on Wages 2019 (Act 29); Industrial Relations Code 2020 (Act 35); Code on Social Security 2020 (Act 36); OSH Code 2020 (Act 37).
3. The parent idea. Recommended by the Second National Commission on Labour; launched as a consolidation plan in 2015.
4. Wage Code. Universal minimum wage, national floor wage, standard wage definition, gender-neutral equal remuneration – replaces four pay-related laws.
5. IR Code. 51% sole negotiating union, 20% council, 14-60 day strike notice, mass casual leave = strike, 300-worker threshold – replaces three industrial-relations laws.
6. OSH Code. Thirteen safety laws merged; factory = 20 workers (10 with power); women on night shifts with consent and facilities; single registration and licence.
7. SS Code. Nine laws merged; gig and platform workers defined and covered; aggregators pay 1-2% of turnover (capped at 5% of worker payouts); pro-rata gratuity for fixed-term staff.

Conclusion: One Lawbook for a Changing Workforce

The four codes matter because they pursue two goals at once: simpler compliance for employers and universal protection for workers – including the gig workforce that older laws never imagined. The trade-offs are real: critics point to the higher threshold for retrenchment safeguards and unresolved questions about informal enforcement, while supporters highlight unified registration, a national wage floor and first-ever gig-worker coverage. That debate is exactly what strong mains answers should engage, using both the numbers and the outcomes.

For revision strategy, pair this hub with the linked deep dives on the Factories Act, gratuity and provident fund, so you can trace how each classic entitlement survives inside the new architecture. Learn the structure first – four codes, their parent commission and their commencement logic – and the numbers second. The structure rarely changes; the numbers are what always get tested.

Frequently Asked Questions

What should you know about The Big Picture: 44 Laws Into 4 Codes?

The consolidation logic came from the Second National Commission on Labour and a 2015 government plan to simplify compliance. Four codes now govern wages, industrial relations, workplace safety and social security – replacing a web of overlapping, century-old statutes. One registration, one licence and common definitions replace multiple filings, cutting disputes and improving ease of doing business. All four codes required central and state rules, which is why full commencement arrived only on 21 November 2025.

What should you know about Code on Wages, 2019?

It is the first code passed – and the one that touches every single worker, organised or not. Identity: Act No. 29 of 2019, passed by the Lok Sabha on 30 July and the Rajya Sabha on 2 August 2019, assented on 8 August 2019. It replaces the Payment of Wages Act 1936, Minimum Wages Act 1948, Payment of Bonus Act 1965 and Equal Remuneration Act 1976, extends minimum wages universally without a wage ceiling, and empowers the Centre to fix a national floor wage that states cannot undercut.

What should you know about Industrial Relations Code, 2020?

It is the most debated code – it redraws how unions, employers and strikes interact. Identity: Act No. 35 of 2020, passed on 22-23 September 2020, in force from 21 November 2025. It replaces the Trade Unions Act 1926, the Industrial Employment (Standing Orders) Act 1946 and the Industrial Disputes Act 1947. A union with 51% membership becomes the sole negotiating union, strikes need 14-60 days’ notice, mass casual leave counts as a strike, and the 300-worker threshold now governs standing orders, layoff and retrenchment rules.

What should you know about OSH Code, 2020?

The Occupational Safety, Health and Working Conditions Code merges the widest range of old laws – thirteen of them – into one workplace rulebook. Identity: Act No. 37 of 2020 (Bill No. 122 of 2020), passed with the other 2020 codes, in force from 21 November 2025. It replaces thirteen statutes including the Factories Act 1948, Mines Act 1952, Contract Labour Act 1970, Inter-State Migrant Workmen Act 1979 and the Building and Construction Workers Act 1996. A factory is now 20 workers (10 with power), women may work night shifts with consent and facilities, and a single registration-licence regime replaces the old multiple filings.

What should you know about Code on Social Security, 2020?

It is the most future-facing code – it takes social security beyond salaried employees to gig and platform workers for the first time. Identity: Act No. 36 of 2020 (Bill No. 121 of 2020), with section 142 in force since May 2021 and full operation from 21 November 2025. It replaces nine laws including the Employees’ Compensation Act 1923, ESI Act 1948, EPF Act 1952, Maternity Benefit Act 1961 and Payment of Gratuity Act 1972. Gig and platform workers are newly defined and covered, aggregators contribute 1-2% of turnover (capped at 5% of worker payouts), and fixed-term employees earn pro-rata gratuity.

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