Trusted by leading tax and mobility providers
How Certino fits into the payroll process
A shared calculation layer for your expatriate payroll clients
Certino gives tax, payroll and mobility providers a single, global platform for owning expatriate tax and shadow payroll calculations across countries.
- Use Certino as a shared calculation layer upstream of payroll, rather than rebuilding country logic in spreadsheets or bespoke tools.
- Deliver consistent, payroll-ready expatriate tax and shadow payroll outputs across clients and jurisdictions.
- Reduce delivery risk and operational overhead while keeping full ownership of the client relationship.
Run shadow payroll with control, not complexity
Shadow payroll is complex by nature - multiple jurisdictions, moving tax rules, gross-ups, hypothetical tax and tight payroll deadlines.
- Bring expatriate tax and shadow payroll calculations into a single global platform, rather than relying on fragmented spreadsheets and hand-offs.
- Retain visibility and control over the calculations that drive payroll, without needing to build or maintain large in-house tax or payroll teams.
- Work more effectively with your existing tax, payroll or mobility providers by using a shared, trusted calculation layer across countries.
Certino is designed to sit alongside your advisor or payroll partner, helping them deliver accurate, consistent results while giving you confidence in the numbers.
What makes Certino different
- End-to-end calculation ownership
Certino provides a single source of truth for expatriate tax and shadow payroll calculations, rather than relying on fragmented spreadsheets and hand-offs. - Purpose-built for expatriate payroll
The platform is designed specifically for expatriate tax, hypothetical tax, gross-ups and shadow payroll — not adapted from domestic payroll or generic tax tools. - Consistency across countries and providers
The same calculation logic is applied regardless of jurisdiction, advisor or payroll provider, reducing interpretation risk and rework.
- Built to sit upstream of payroll
Certino supplies payroll-ready outputs that integrate cleanly into existing payroll and tax delivery models, rather than replacing them. - Designed for scale, not heroics
Monthly expatriate payroll runs can be delivered reliably without last-minute pressure, manual fixes or reliance on individual expertise. - Supports partner-led delivery
Certino strengthens the role of tax, payroll and mobility partners by giving them a shared calculation layer they can trust across clients.
We work on a country by-country basis, so delivering a single report in the Certino system and immediately providing shadow payroll results was very advantageous to us. This combination of benefits makes Certino unique as a shadow payroll provider.
Benjamin Mueller Senior Tax Specialist, Siemens GMS Tax
