Labour cess is a statutory levy on the cost of construction, charged since 21 November 2025 under section 100 of the Code on Social Security, 2020, which replaced the Building and Other Construction Workers’ Welfare Cess Act, 1996. The Code fixes a band, not less than one per cent and not more than two per cent, and the Central Government has notified one per cent of the cost of construction (S.O. 2322(E), 8 May 2026). On government and public sector work it is deducted at source from your running bill, so it reaches the welfare board before it ever reaches you. Pay it late and the rules add interest of one per cent a month.

What labour cess is, and where the money goes

Most contractors meet labour cess as a line on a bill rather than as a law, which is why it gets treated as one more mysterious deduction. It is not mysterious. For almost thirty years it had its own short Act, Act 28 of 1996. Since 21 November 2025 it sits in Chapter VIII of the Code on Social Security, 2020, and the law still says exactly what the money is for.

The cess funds the Building and Other Construction Workers’ Welfare Boards that each state constituted under the parent Act of the same year, now carried on as the state Building Workers’ Welfare Boards under the Code. Those boards run the registration and welfare schemes for construction workers. The cess is the funding line for that system, collected from the people who incur construction cost.

Section 3(1) of the old Act was the operative sentence: a cess shall be levied and collected “at such rate not exceeding two per cent. but not less than one per cent. of the cost of construction incurred by an employer, as the Central Government may, by notification in the Official Gazette, from time to time specify.”

Section 100(1) of the Code on Social Security, 2020 carries the same words forward: a cess “at such rate not exceeding two per cent. but not less than one per cent. of the cost of construction incurred by an employer, as the Central Government may, by notification, from time to time, specify.” The Act was repealed by section 164 of the Code, brought into force for the cess on 21 November 2025 by notification S.O. 5319(E).

The rate: a band in the Act, a number in a notification

Read that again, because it explains why answers differ. Neither the old Act nor the Code sets the rate. Each sets a floor of one per cent, a ceiling of two per cent, and hands the actual number to the Central Government to notify, and to revise.

So a figure someone quotes you from memory, or from a blog written some years ago, is a notification’s figure and not the Act’s. Get the current rate from your state welfare board or from the department deducting it. The band is fixed; the number inside it is not.

The current figure is one per cent. Notification S.O. 2322(E) of 8 May 2026 specifies a cess at the rate of one per cent of the cost of construction under section 100(1) of the Code, and supersedes the 1996 notification S.O. 2899 that had set the same one per cent. On ₹2 crore of construction cost, that is ₹2 lakh of cess.

The base matters as much as the rate. The levy is on cost of construction incurred by an employer. The Code itself now says two things are not part of that cost: the cost of land, and compensation paid to a worker or the worker’s family under its employee-compensation chapter. Beyond that, the method is set by the rules. If a large item in your contract, such as supplied material or a plant component, is in dispute, that is a rules question and a board question, not something to settle by arithmetic on site.

How it reaches the board before it reaches you

Section 3(2) of the old Act, now section 100(2) of the Code in the same words, is the part that shows up in your bank balance. The cess is to be collected from every employer in the prescribed manner and at the prescribed time, and the section expressly includes “deduction at source in relation to a building or other construction work of a Government or of a public sector undertaking”, along with advance collection through a local authority where that authority’s approval for the work is required.

In plain terms: on government and PSU work, the department takes it off the running bill. You do not write a cheque; you receive less. Rule 41(2)(d) of the Social Security (Central) Rules, 2026 requires the department to deposit what it deducted with the state Building Workers’ Welfare Board within thirty days. That is by design, and it is why the cess belongs in your pricing rather than in your surprises.

Where the work is How the cess typically reaches the board What you should do
Government or PSU contract Deducted at source from the running bill Price it into the rate before you bid
Work needing local authority approval Advance collection through that authority Budget it at the approval stage, not at billing
Private contract Collection route depends on the rules and the contract Read the deduction clause; ask who deposits it
Any of the above, paid late Interest under rule 42 at one per cent a month (two per cent under the old Act) Do not let an assessment sit unpaid

This is the same discipline that governs every other deduction on a running bill. The guide to contractor payment delays on government work walks through the billing cycle those deductions sit inside, and if you are still pricing the job, how to quote an excavation rate per cubic metre is where statutory costs should be built in rather than absorbed.

Who counts as the employer

Here the old Act was deliberately economical. Section 2(d) said that words used but not defined in the Cess Act take the meaning given to them in the parent Building and Other Construction Workers Act, 1996. “Employer” is one of those words. The Code now carries its own definitions, including what counts as building or other construction work in section 2(6).

The practical consequence for a machine owner is worth being precise about. Putting a backhoe on hire to someone else’s site is not the same activity as executing a works contract in your own name. The cess attaches to construction cost incurred by an employer, so the question is what you are actually doing on that job, not what you own. If you have moved from hiring out machines to taking work in your own name, the route set out in how to become a labour contractor and in PWD contractor registration, your position under the Code changes with it.

That is a question to put to your state welfare board or your accountant with your actual contract in hand. It is not a question to answer from a table on the internet, including this one.

Which work falls outside labour cess

The Code’s definition of building or other construction work in section 2(6) leaves out three kinds of work: work related to a factory or a mine, work employing fewer than ten workers in the preceding twelve months, and work for an individual’s or a group’s own residence where the total cost does not exceed ₹50 lakh, or a higher amount if the government notifies one. A family building its own house for ₹40 lakh therefore pays no labour cess; the same family building a ₹70 lakh house does, and so does a builder putting up houses to sell, unless the work employs fewer than ten workers.

The cess is only one of the two duties created in 1996. The companion Act required the establishment itself to be registered once ten building workers had been on site on any single day in twelve months, and that threshold is explained in BOCW registration. That Act was also repealed on 21 November 2025; registration of an establishment with ten or more workers now sits in section 3 of the Occupational Safety, Health and Working Conditions Code, 2020.

What delay and evasion cost

The Act has teeth, and they are worth knowing before an assessment lands.

Section 8 of the old Act charged interest at two per cent for every month or part of a month from the date the payment was due until it is actually paid. Under the Code the rate is set by rule 42(2) of the Social Security (Central) Rules, 2026: if the cess is not paid within the time the assessment order allows, interest runs at one per cent per month or part thereof from the due date until the date of actual payment. Part of a month still counts as a month, so a few days late is a full month’s interest.

Section 12 of the old Act handled the deliberate cases. Furnishing a return you know or have reason to believe is false carried imprisonment up to six months, a fine up to one thousand rupees, or both. Wilfully evading or attempting to evade the cess carried imprisonment up to six months, a fine, or both. Under the Code, section 104 lets the prescribed authority treat unpaid cess as arrears and impose a penalty of up to the amount of cess itself, after giving the employer a reasonable opportunity to be heard. A penalty equal to the cess doubles the bill, and that is not something a small contracting business absorbs quietly.

There is also a returns obligation in its own right. Section 4 of the old Act required every employer to furnish returns in the prescribed manner and time, and section 5 provided for assessment. Under section 103 of the Code, the employer pays the cess on a self-assessment within sixty days of completing each building or other construction work, adjusting any advance paid, and then files a return. Under rule 41 the assessing officer scrutinises it only where the self-assessed cess exceeds ₹10 lakh, and if no assessment order is made within 180 days the self-assessment is treated as final. Ignoring a notice does not make the assessment go away.

Know the labour cess rate before you bid

Treat labour cess as a known cost, not a deduction that happens to you. Find out the currently notified rate before you bid, read what your contract says about who deducts and deposits it, and keep the returns current so an assessment never turns into interest at one per cent a month and a penalty on top.

For owners moving from machine hire into contracting proper, the working capital gap that these deductions widen is the real risk. Look at equipment and business finance options before the gap opens, and read how to bid for government construction tenders so the statutory costs are inside your price. The full text of the Code is in the Gazette of India (Act 36 of 2020), and the current one per cent rate is in notification S.O. 2322(E) of 8 May 2026.

Cess rates, rules and state board practice change, and the position depends on your contract and your role on the job. Confirm the current rate and your own liability with your state welfare board, the deducting department or another official source before you rely on any of this. DesiMachines is not liable for decisions taken on the basis of information that may have changed after publication.