Moving Employees to Third-Party Payroll: The Complete Migration Checklist

Moving an existing team onto a third-party payroll is one of the highest-leverage workforce decisions an Indian company can make — and one of the easiest to fumble. Get it right and nobody notices anything except a new name on the payslip. Get it wrong and you face broken PF histories, lost gratuity tenure, anxious employees and, in the worst cases, attrition triggered by the migration itself.

TMS has been transferring workforces onto its payroll since 2006 with a simple standard: no break in service, no statutory loss, no change in take-home pay. This checklist is the process behind that standard. Use it to run your migration — or to audit whichever provider you’re evaluating.

New to the model? Start with third-party payroll services and how it differs from payroll outsourcing — then come back.

Phase 1: Pre-Migration Audit (Before You Sign Anything)

• 1. Employee data census. One master sheet per employee: name, DOJ, UAN, PF account, ESI IP number, PAN, Aadhaar-linked bank account, current CTC structure, designation, location/state.
• 2. Contract review. Check current appointment letters for notice periods, transfer clauses and any terms that constrain the move. Employees will resign and be re-appointed — the paperwork must support a same-day, no-gap switch.
• 3. CTC mapping — the take-home test. Map every employee’s current salary structure to the new provider’s structure. The non-negotiable output: net take-home matches to the rupee in month one. Watch for state-specific components — professional tax slabs and LWF differ by state (e.g., Maharashtra PT is ₹200/month, ₹300 in February, above ₹10,000; Karnataka and other states run different slabs).
• 4. Leave balance reconciliation. Decide and document: are accrued leave balances carried into the new employment, or encashed at transfer? Either is workable; silence is not — this is the #1 source of employee grievances post-migration.
• 5. Gratuity exposure snapshot. List everyone’s completed years of service. Anyone past or approaching 4 years 240 days needs an explicit gratuity treatment decision (see Phase 2).
• 6. Statutory hygiene check. Confirm your own PF/ESI filings are current before migrating — open defaults don’t disappear when employees move; they surface during the transfer.

Phase 2: The Legal Continuity Questions

These three questions decide whether your migration is clean or a slow-motion liability. Ask them of any provider — in writing.

7. How is gratuity continuity preserved?

Gratuity vests after five years of continuous service — with courts (notably the Madras High Court in Mettur Beardsell Ltd. v. Regional Labour Commissioner, 1998) treating 4 years + 240 days in the fifth year as qualifying, an interpretation widely followed though not codified. A payroll transfer interrupts “continuous service” with the old employer, so gratuity is handled per engagement — TMS offers both models case by case, and we agree the approach with you upfront:

• Pay out on transfer: the outgoing employer settles accrued gratuity (typically provisioned at 4.81% of basic) in the full & final, with employee sign-off; the clock restarts with the new employer; or
• Continuity by agreement: service continuity is contractually recognised in the tripartite transfer arrangement so tenure carries over.

What is never acceptable: a transfer document that is silent on gratuity for a 3.5-year-tenured employee.

8. How does PF move?

PF is the easiest to preserve and the most commonly botched. The correct path: the employee’s UAN stays the same, and accumulated balances transfer to the new establishment’s PF account via online Form 13 transfer. Checklist within the checklist:

• UAN KYC (Aadhaar, PAN, bank) verified for every employee before transfer month
• Date of exit filed by old employer promptly
• Form 13 claims filed and tracked to completion — not just initiated
• First ECR under the new establishment reflects every transferred employee

9. What happens to ESI?

ESI-covered employees (earning up to ₹21,000/month gross) keep their IP number; the new employer registers them against its ESI code. Verify that coverage is continuous month-to-month — a gap in contribution can interrupt benefit eligibility for dependants mid-treatment. Confirm contribution rates are applied correctly (3.25% employer / 0.75% employee).

Phase 3: The Employee Communication Plan

Migrations fail on WhatsApp before they fail on paper. Employees who first hear about the move as a rumour assume the worst: layoffs, salary cuts, “we’re being sold.”

• 10. Announce before you execute. A joint session — your leadership plus the new payroll partner — explaining what changes (the employer name on the payslip) and what doesn’t (role, manager, workplace, take-home, PF history, tenure).
• 11. Put the guarantees in writing. A one-page FAQ per employee: same take-home, PF transferred with same UAN, gratuity treatment stated explicitly, leave balance treatment stated explicitly, who to call with questions.
• 12. Run a query window. 1–2 weeks of open office hours (TMS runs these as part of every transfer) before resignation/re-appointment letters go out.
• 13. Time it to a salary cycle. Effective dates on the 1st of a month, with the first new payslip due within 30 days of announcement. Short gaps between announcement and proof build trust; long gaps breed exits.

Phase 4: The 30-60-90 Day Timeline

Days 1–30 — Setup. Data census and CTC mapping complete → commercial agreement signed → employee communication executed → resignation + re-appointment letters issued with matched dates → PF date-of-exit filings by outgoing employer.

Days 31–60 — Statutory migration. New-establishment PF/ESI registrations of all employees → Form 13 transfers filed → first payroll run in parallel/test mode → first live payslip: take-home matched to the rupee → HRMS access issued to employees and client HR.

Days 61–90 — Stabilise and close. Form 13 transfers tracked to credit → first full statutory cycle proven (PF challan, ESI, PT, TDS) with proof shared → leave/gratuity documentation closed per Phase 2 decisions → grievance sweep → steady-state monthly cadence with the dedicated account team.

(TMS’s standard engagement runs this as: Brief → Proposal within 48 hours → 30–60 day migration → steady state. Details on the payroll transfer services page.)

The Five Pitfalls That Cause Real Damage

1. The silent gratuity clause. Transfer documents that never mention gratuity for tenured employees — a latent liability that surfaces years later at exit.
2. Take-home drift. Restructured CTCs that technically match on gross but change net (different PT state, different basic ratio shifting PF deduction). The rupee-match test catches this.
3. Orphaned PF transfers. Form 13 filed, never tracked, rejected on a KYC mismatch nobody fixed — employee discovers a stranded balance two years later.
4. Announcement by payslip. Employees learning about the migration when a new company name appears on their salary slip. Guaranteed attrition.
5. The compliance-history blind spot. Choosing a provider without asking for their penalty record. Your workforce inherits their compliance behaviour — ask for proof, not assurances. (TMS’s answer: zero statutory penalties since 2006, with challans and ECRs visible to clients monthly in our HRMS portal.)

How TMS Runs Payroll Transfers

TMS has moved employee groups onto its payroll across every kind of migration — vendor switches, headcount restructuring, entity wind-downs — with a 20-year zero-penalty record and take-home matched to the rupee on the first payslip, having moved hundreds of employees compliantly across 28 states. The full process, commercials and FAQs are on our payroll transfer services page; the broader model is explained on third-party payroll services.

Planning a payroll migration? Get a transfer plan and per-employee quote within 48 hours. Call +91-22-4896-7640

Frequently Asked Questions

What is payroll migration?

Payroll migration (payroll transfer) is moving an existing group of employees from one employer’s payroll to another’s — typically from a company’s own rolls to a third-party payroll provider, or between providers — with service continuity, statutory transfers and unchanged take-home pay.

Do employees have to resign to move to third-party payroll?

Yes — formally. Employees resign from the current employer and are re-appointed by the new employer with matched dates so there is no gap in service. Done correctly, it is a paperwork event, not a career event.

Does PF continue when moving to a third-party payroll?

Yes. The UAN remains the same and balances transfer to the new establishment via online Form 13. Service history in the PF system is preserved.

What happens to gratuity when employees are transferred?

Gratuity is handled per engagement, and TMS offers both models case by case: either the outgoing employer settles accrued gratuity at transfer and service restarts with TMS, or accrued service is preserved through a tripartite arrangement so it carries over — we agree the approach with you upfront. The transfer documentation must state which applies.

How long does a payroll migration take?

A well-run migration takes 30–60 days from signed agreement to first live payslip, with statutory transfers tracked to completion by day 90.

Will employees’ take-home salary change?

It must not. The provider maps every CTC so net take-home matches to the rupee — allowing only for unavoidable state-level differences like professional tax if employees change work state.

Can we migrate only part of the workforce?

Yes — most migrations cover specific teams or grades, not the whole company. The checklist applies identically to a 20-person team and a 2,000-person division.