A global payroll solution promises one system that pays employees correctly in every country you operate: one interface, one consolidated report, local compliance underneath. The promise is real but the architecture varies, and for a UK-headquartered buyer the domestic layer is the easiest place to test it. British payroll runs on PAYE, HM Revenue and Customs' system for collecting Income Tax and National Insurance at source, with real-time reporting duties that are specific, dated and unforgiving. How a vendor handles PAYE tells you a great deal about how it will handle the equivalent machinery in every other country, where you are less equipped to check.
What a global payroll solution actually is
Under every global payroll brand sits one of three architectures. Some vendors run their own payroll engines in each country, calculating gross-to-net domestically under local rules. Some are aggregators: a software layer and account team stitched over in-country payroll partners who do the real calculation and filing. Most are hybrids, owning engines in large markets and partnering elsewhere. None of these is wrong, but they fail differently: an owned engine fails loudly and centrally, a partner network fails quietly and locally, in a spreadsheet handoff you never see. The first question for any vendor is therefore a map: for each of your countries, who calculates, who files, and who is liable when a filing is late. The answer belongs in the contract, not the sales deck.
The UK layer: PAYE and real-time reporting
The UK is a good acid test because its duties are precise. An employer operating PAYE must report employees' payments and deductions to HMRC on or before each payday, through a Full Payment Submission from its payroll software; that real-time reporting obligation applies every single pay cycle, not annually. The tax month runs from the 6th to the 5th, and what is owed must reach HMRC by the 22nd of the following tax month for electronic payment, the 19th by post; an Employer Payment Summary by the 19th claims any reductions, and one is due even for months when no employees were paid. Gov.uk also warns that late filing carries penalties and that HMRC may close a new employer's PAYE scheme that neither reports nor pays for a sustained period. Any global solution you shortlist should demonstrate this cycle running, not describe it.
Question set for shortlisting a vendor
Ask for the calculation map by country, as above. Ask where the data lives and how a change, a starter, a leaver, a salary rise, flows from your HR system into the engine, because rekeying between systems is where most payroll errors are born. Ask what the consolidated reporting actually consolidates: some products genuinely normalise every country's gross-to-net into one ledger, others bolt a dashboard over PDFs from partners. Ask how statutory changes are absorbed, since every country amends rates and thresholds on its own calendar. And ask for the service model in numbers: named contacts or a queue, response times in the contract, and what the escalation path is when an employee in another country is paid wrongly on a Friday.
Global payroll vs EOR: which product you actually need
A global payroll solution assumes you already have employing entities in each country; it calculates and files what those entities owe. If you have no entity in a country, payroll software cannot help you employ there, and the product you need is an employer of record, which supplies the legal employer as well as the payroll. Many vendors sell both under one brand, which blurs the line commercially but not legally. The practical split for a growing UK company is usually: PAYE payroll at home run by your bureau or software, an EOR for the first hires in each new country, and a consolidation onto a global payroll engine once enough owned entities exist for the single-ledger benefit to be worth a migration. Buying the consolidation before the entities exist is paying for a stage you have not reached.
Questions people ask about global payroll solution
Does a global payroll solution replace my UK payroll bureau?
It can, if its UK engine operates PAYE fully: Full Payment Submissions on or before each payday, Employer Payment Summaries where due, and payments to HMRC by the monthly deadline. Make a shortlisted vendor demonstrate the UK cycle before migrating anything.
What is the difference between global payroll and an EOR?
Global payroll calculates and files for entities you own; an EOR is the legal employer where you own nothing. If you have no entity in the country, an EOR is the product you need, whatever the brochure says.
Are aggregator-style solutions worse than owned engines?
Not inherently; partners can be excellent local firms. The difference is failure mode and accountability, so get the by-country map of who calculates, who files and who is liable into the contract.
What UK deadlines does any provider have to hit?
Reporting to HMRC on or before every payday via FPS, and payment by the 22nd of the following tax month for electronic payers, the 19th by post, with tax months running from the 6th to the 5th.