Test four things: whether they genuinely cover every state you operate in, how they learn about and apply a statutory change, who signs off each filing, and what you get back on the day you leave. Then ask their references how an error was corrected, because error handling reveals service quality better than any capability list.
Every provider says they cover India. What you need to know is whether they currently process for other clients in each state where you employ people, and who inside their organisation does that work. Ask for the states by name, ask how many clients they run in each rather than accepting a map graphic, and ask what happens when you enter a state they have not worked in before, since the honest answer is often that they will learn alongside you. That may be acceptable, but you should know it. Verify separately with a qualified advisor which obligations your presence in each state actually creates, rather than treating the provider's list as the definition of your exposure.
Ask them to describe the last change that affected clients like you: what it was, how they learned of it, who decided what it meant, when clients were told and what clients had to do. A provider with a real process answers specifically and quickly. A provider without one answers in generalities about a dedicated compliance team. Ask how they communicate a change too, because a bulletin nobody reads is not communication, and ask what happens when their interpretation differs from your advisor's. That disagreement will occur eventually, and you want to know in advance whose view prevails and how the decision is recorded.
Clarify at each stage whether the provider is preparing something for your approval or acting on your behalf. Somebody in your organisation should approve the run before disbursement, and somebody should confirm filings were made rather than assuming it. Ask what you receive before each release, what you receive afterwards as evidence, and what happens if you do not respond in time. A provider who processes without an approval gate is convenient right up to the month you needed to stop something. Keep your own [payroll management](/payroll-management) record of what you approved, separately from theirs.
Response time on a routine query matters least, though it is quoted most. What matters is correction time, and it should be defined differently before and after disbursement: an error caught before release should be fixable within the cycle, while an error found after release needs a stated path, a named escalation and a commitment on when the employee is made whole. Ask what counts as an error, since a provider whose definition excludes anything caused by an input you supplied has offered a service level covering very little. Ask what happens on repetition too, and what triggers a review when the same mistake recurs.
You are handing over salary, bank details, identifiers and personal information for your entire workforce. Ask where the data is stored, who inside the provider can see it, whether access is logged, how their staff are offboarded, what happens on a subcontractor's systems if they use one, and how they would tell you about a breach. Ask what employees themselves can see and through which system, because if payslips live in the provider's portal your people are logging into a third party. If they run [cloud HR software](/cloud-hr-software) of their own, treat that as a vendor assessment in its own right rather than as part of the service description.
Write this into the contract while they still want your business. You need master data, structures, historical registers, payslips, year-to-date figures, remittance evidence, filed returns and their acknowledgements, and the working papers behind anything unusual, all in a format readable without their platform. You also need any registration or credential held on your behalf transferred back, and a handover date that does not fall in the middle of a cycle. Ask for the exit clause in the draft rather than a verbal assurance, and if bringing the work in-house later is plausible, confirm the export will actually load into [payroll software](/payroll-software) rather than arriving as printed statements.
Not whether the reference is happy, since anyone offered as a reference will be. Ask about a specific incident: describe the last thing that went wrong and what happened next. Ask who they deal with day to day and whether that person has changed. Ask what the provider does badly, and treat a claim that nothing is done badly as a non-answer. Ask how long their last query took to close and whether they had to chase it. Then ask for a reference the provider did not choose, ideally in a state you operate in, and notice whether that request is met or deflected.
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