Most payroll outsourcing providers can run payroll for a manufacturing plant. Very few run it correctly by the third month, when a supervisor covers a night shift for an absent colleague, and nobody updates the roster.
Two reforms in the last year widened the gap. The four Labour Codes took effect centrally on 21 November 2025, folding 29 older laws, including the Factories Act, 1948, and the Contract Labour (Regulation and Abolition) Act, 1970, into the Occupational Safety, Health and Working Conditions (OSH) Code, 2020, and three sister codes. The Income-tax Act, 2025, replaced the 1961 Act from 1 April 2026. Providers built for office payroll absorbed both as configuration changes. In a factory, they changed the wage base, the overtime calculation, and the settlement clock at once.
The seven failures below are what that looks like on a payslip.
Why does payroll outsourcing built for offices fail in a factory?
Factory payroll is rebuilt from attendance data every month; office payroll varies a fixed salary. That is the structural difference, and it is why providers built for offices struggle in a plant.
The factory wage roll begins afresh at every cycle and is built up again by punching data according to four or five categories of workers who have varying legal provisions. The law applicable to the establishment is also different. The factory is covered by the OSH code, 2020, which has subsumed the Factories Act, 1948. The office is governed by the Shops & Establishments Act of a particular state.
That structural difference produces the seven failures below, ordered by what they cost rather than how often they occur.
Does payroll outsourcing apply a minimum wage floor to piece-rate workers?
No. A piece-rate worker cannot be paid below the applicable state minimum wage for their skill category, however low output was that month. Payroll outsourcing has to apply that floor automatically, and most do not.
Piece-rate pay computes wages from units produced, and it runs most of garments, assembly, packaging and contract manufacturing. The calculation is simple; the floor underneath it is not.
States revise those rates and the variable dearness allowance component periodically, commonly around April and October.
- What generic payroll outsourcing will do: pay purely in terms of output, or require you to send a corrected amount separately. The latter approach eliminates any audit trail completely.
- How much it will cost: underpayment by each and every employee involved. Under the Code on Wages, the remedy extends far beyond just the underpayment.
- Ask them: show me a worker whose piece-rate earnings fall below minimum wage this month. What does the system pay, and what does the wage register show?
How does payroll outsourcing calculate factory shift allowance?
From the punch time, not from a roster someone remembered to update. A system that reads the actual punch assigns the correct shift even when the roster is stale.
Every payroll outsourcing provider supports shift differentials. Almost none detects the shift automatically from when the worker actually punched in.
That distinction matters more than any other on this list, because rosters change on the floor at 9pm and the change reaches payroll on paper, if at all.
What generic payroll outsourcing does: applies the allowance from the roster you submitted, which was accurate on the 1st and wrong by the 12th.
What it costs: A night-shift employee who was compensated for that shift now loses the benefit and sees it reflected on the pay cheque, and the mistake gets sorted out in the following month. This turns into an industrial relations issue within the entire plant.
Ask them: a general-shift worker punches in at 10pm, and nobody updated the roster. What happens?
How does payroll outsourcing calculate factory overtime in India?
At twice the ordinary rate of wages, for work beyond eight hours in a day or forty-eight hours in a week under the OSH Code, 2020. The daily trigger dropped from nine hours under the old Factories Act. The spread over the ceiling and the total time between clocking in and out went up from ten and a half hours to twelve hours, while there is an allowance in certain states for a four-day workweek schedule within the 48-hour ceiling. This is particularly true for a shift-based factory where the construction of rosters is involved. There is also a limit on the number of overtime hours which can be worked during the quarter.
The multiplier is not where payroll outsourcing goes wrong. The base is. “Ordinary rate of wages” is a defined term, and the Code on Wages changed which components count toward it by requiring basic plus dearness allowance to be at least 50% of total remuneration.
What generic payroll outsourcing does: applies the multiplier to basic pay as it stood before the restructure, or to whichever field in your file is labelled salary. Some are also still triggering overtime at the old nine-hour mark instead of eight.
What it costs: consistent underpayment of overtime wages for each overtime hour worked, within an organization whose workers often have to work overtime.
Ask them: which elements of the pay make up the regular rate in the computation of overtime, whether the overtime kicks in after eight hours or after nine hours, and whether you can monitor the ceiling limit for the quarter.
Does payroll outsourcing count contract workers toward the ESI threshold?
Yes. The contract employees will also be included along with the direct employees to reach the threshold of 10 employees for ESI registration purposes. This is the costliest mistake among all listed here, and it is due to the miscounting of employees.
Employees’ State Insurance covers employees whose monthly salary is below INR 21,000, with 0.75% of contribution from the employee and 3.25% from the employer on or before the 15th of the next month. The threshold for registering is ten employees in most states.
Under the OSH Code, 2020, which absorbed under the Contract Labour (Regulation and Abolition) Act, 1970, the fallback liability in case of default by the contractor with respect to wages, PF, or ESI would be that of the principal employer. These workers will also be counted towards your threshold along with the employees.
- A worked example. An organization has eight employees and five contract workers through a labour contractor. The number for ESI is taken as 13, not eight. This is above the 10-employee threshold. In case neither of the organizations was registered, liability becomes retrospective from the day of crossing the threshold, and it falls on the principal employer.
- What generic payroll outsourcing does: processes the workers whose data you send, which are your direct employees. The contractor’s workers sit outside the perimeter, and so does the liability nobody is tracking.
- Ask them: show me the contract worker headcount feeding the ESI threshold calculation, and show me the contract-labour register set.
If you are not certain where your own headcount sits against the ten and fifty-employee thresholds, that is the first thing worth checking before any provider conversation.
Does payroll outsourcing produce factory registers in the prescribed format?
A report will not do. Registers have a prescribed format that varies by state, and an inspector asks for the register. The set covers the muster roll, wages, overtime, and fines and deductions under the OSH Code and its state rules.
One thing did get simpler: the OSH Code replaced the separate Factories Act, CLRA and inter-state migrant worker registrations with a single establishment registration for units with ten or more workers, filed through the Shram Suvidha portal. That does not reduce what a provider needs to track day to day. It just means the registration step itself is one filing instead of three.
When the number of contract employees exceeds fifty, then the contract labour register system becomes applicable, which is increased from twenty according to the previous CLRA. The factory that comes within the ambit of the previous CLRA due to the previous number may have fallen out of the scope of the Act due to the new number but still carries the same inherent danger.Â
Generic process of payroll outsourcing: the salary bill gets to be the register.
What it costs: An inspection turns out to be a finding. It would normally be revealed that there are discrepancies between attendance and wages when trying to reconstruct accurate registers.
Ask them: show me the muster roll and wage register in my state’s prescribed format, not a report with the same data.
How does payroll outsourcing handle Professional Tax across multiple plants?
Each plant’s own state, not your head office state. Professional Tax is levied by state, at state-specific slabs, on state-specific calendars, and several states do not levy it at all.
The Labour Welfare Fund is also divided, as some collect contributions monthly while others collect contributions bi-annually. The use of three different factories in three different states implies the existence of three registrations and remittances which have no central notice at all.
What generic payroll outsourcing does: applies your head office state’s slab to everyone, because a single-location setup assumes there is only one.
What it costs: interest and penalty under each state Act, calculated retrospectively from the date of the error rather than the date you noticed it.
Ask them: who updates the state wage and PT tables, and what is the lag between a state notification and it appearing in the system?
How does payroll outsourcing meet the full and final settlement deadline?
The notice for discharge, termination, or resignation should be made two days before dismissal as per the Code of Wages which will come into force on 21st November 2025. Earlier, a notice of thirty to forty-five days was given. The payment of gratuity is done under the Payment of Gratuity Act, 1972. Its notice period is thirty days.
Manufacturing attrition means exits happen continuously rather than on a schedule, which makes the shorter window harder for a plant than for an office.
A batch process that runs once a month cannot meet a window measured in working days.
What generic payroll outsourcing does: create exits in the next month’s cycle, which was standard and acceptable practice in 2024.
What it costs: statutory non-compliance for each exit and the reputation cost. The exiting employee’s settlement experience is what their former co-workers and future applicants will know about.
Ask them: The existing employee quits work on the 14th. When is the settlement due, and what brings it about?
What changed in 2026 that payroll outsourcing must now handle?
These five amendments happened within five months: a 50% base limit of the Code on Wages, two-day settlement period, a lower threshold for overtime work under the OSH Code, a high threshold for contract labor in the OSH Code, and re-numbering of Form 2025 of the Income-tax Act. They all affect factories more than office workers.
| Change | Effective | What it changes for a factory |
|---|---|---|
| Code on Wages, 50 % wage base rule | 21 Nov 2025 centrally, states notifying separately | Raises the base for PF and for the overtime multiplier |
| Code on Wages, settlement window | 21 Nov 2025 | Two working days from exit, against 30 to 45 days previously |
| OSH Code, overtime trigger | 21 Nov 2025 centrally, states notifying separately | Daily trigger drops from nine hours to eight; spread-over ceiling rises from 10.5 to 12 hours |
| OSH Code, contract labour threshold | 21 Nov 2025 centrally, states notifying separately | Register and licensing threshold rises from twenty to fifty contract workers |
| Income-tax Act, 2025 renumbering | 1 April 2026 | Form 16 becomes Form 130, and Form 24Q becomes Form 138 |
These are the two that affect cash flow and timing the most. The one related to changing the trigger to calculate overtime pay is the one that affects exposure the most, as an overtime pay provider using the ninth hour to determine when overtime pay should be paid is automatically underpaying from the eighth hour to the ninth.
Just ask any provider to explain what they changed in their system on 21 November 2025 and on 1 April 2026. It will tell you whether they keep track of Indian statutory changes or are just reactive to them.
What should I ask a payroll outsourcing provider before signing?
Four questions, asked with your own data in front of you, expose a generic provider in about ten minutes. They are listed below.
Providers demonstrate the happy path. These four probe the edges, and they are quick enough to ask in any first meeting.
Bring your own data if you can. A demo on the provider’s dataset proves nothing about your plant.
- A general-shift worker punches in at 10pm without a roster change. What happens?
- Show me the muster roll in my state’s prescribed format.
- Show me the contract worker headcount feeding the ESI threshold test.
- A piece-rate worker earns below minimum wage this month. What does the system pay?
The second question separates payroll outsourcing providers faster than the other three. Most will show you a report.
What does payroll outsourcing cost for a factory?
Providers price per employee per month, and manufacturing sits above office payroll because five things drive the number.
Those five are worth understanding before you compare quotes, because a provider who does not ask about them is quoting for a different business.
Worker categories. Monthly-rated, daily-rated, piece-rate and contract each need separate treatment. A plant running all four costs more than one running one.
State count. Each state adds a PT registration, an LWF calendar and a separate minimum wage table to maintain.
Contract labour volume. Verifying contractor challans and maintaining contract-labour registers is work that scales with the number of contractors, not the number of workers.
Attendance integration. Device-level integration costs more upfront than a monthly file import and removes the error class that file imports create.
Register generation. Producing registers in a prescribed state format is a different build from producing reports.
A quote that does not ask about these five is a quote for office payroll with a manufacturing label on it.
Does every factory need specialist payroll outsourcing?
No. A single-shift plant on fixed monthly wages, in one state, with no contract labour, behaves like office payroll, and a generalist will handle it.
Good software with an in-house payroll owner will handle it too. It is worth saying so before you pay for a specialist you do not need.
The moment any one of those changes, the seven failures above start applying. In practice the trigger is the second shift or the first contractor, not headcount.
Common questions about payroll outsourcing for factories
There are a couple of questions that arise in evaluation that are not directly addressed by the previous sections.
Is the outsourcing of payroll services inclusive of contract labour?
Ask for specifics. Most companies handle only those employees whose information is supplied to them and ignore the contractor employees. However, under the OSH Code, the principal employer has a fallback responsibility anyway.
Who is liable if a labour contractor fails to deposit PF?
The principal employer. This is why verifying contractor challans before clearing invoices is an obligation rather than a courtesy and why a provider should be tracking it as part of the service.
How do I know if my present payroll outsourcing is doing it all wrong?
There are four things to look out for: Are the shift allowances adjusted in the following month? Is the eight-hour limit of the overtime being observed? Are there any contractual employees in your ESI headcount? Can you prepare registers in a prescribed format the next morning?
Do I need specialist payroll outsourcing for 200 employees?
Headcount is the wrong test. Shifts, states and contract labour are the tests. A 200-person single-shift plant in one state is simpler than an 80-person plant running two shifts with contractors on site.
Is it possible for us to conduct payroll outsourcing at the same time as we utilize our current HRMS? The service may be integrated into the HRMS that you are currently using without necessitating a migration. It will matter in terms of implementation time frame.
Are these payroll outsourcing failures edge cases or normal factory conditions?
Normal conditions. None of the seven is exotic, and payroll outsourcing built for offices treats every one as an exception.
They are the ordinary operating conditions of an Indian plant.
The cheapest way to find out which kind you are dealing with is to ask the four questions above before you sign, with your own data in front of you.
If you would rather have someone map it for you, our payroll outsourcing services team works through worker categories, state coverage, and registration obligations plant by plant. Request a Risk Assessment, and we will tell you where your current setup is exposed before recommending anything, including whether you do not need to change providers.
