Structuring Split Payroll for Executives Working Across Borders

A dual contract structure typically exists to properly allocate compensation, tax withholding, and social security contributions between two countries based on where the executive is actually performing work and spending time, rather than pretending all the work happens in one place. It's most relevant when the split is substantial and ongoing, not a short business trip, since a brief trip usually doesn't require restructuring the entire employment relationship.

Before setting one up, confirm the split is real and likely to persist, since the administrative overhead of running dual contracts isn't worth it for a temporary arrangement that will resolve in a few months.

The compensation allocation between the two contracts needs to reflect the actual time and value of work performed in each country, not an arbitrary split chosen for tax convenience, since tax authorities in both countries can scrutinize whether the split reflects economic reality. Say an executive spends roughly a third of their working time and responsibility in the host country: the compensation split should track that reasonably closely, documented with a time and duties log, not just asserted.

This matters for compensation bands too. A senior operations executive splitting time across entities might reference something like $167,280¹ as a senior-band anchor when structuring the total package, then allocate it across the two contracts based on the actual time split.

Without coordination, an executive working across two countries can end up subject to social security contributions in both, which is expensive and often avoidable. Many country pairs have a totalization agreement specifically to prevent this, allowing the executive to remain covered under one country's system while working temporarily in the other, but claiming the exemption requires the right certificate filed at the right time.

Check whether a totalization agreement exists between your specific two countries before assuming double contributions are unavoidable, since this is one of the more commonly missed pieces of a dual contract setup.

For example, an executive based in the US who spends part of the year running a European subsidiary should have two questions answered before the first pay cycle: which country's system covers them while they work abroad, and who is responsible for filing the certificate. Have payroll in each country confirm the answer in writing, keep a copy with the employment contracts, and set a reminder to renew or re-file it before it lapses. Skipping this step is how an avoidable second set of contributions ends up on the payroll.

A few recurring issues:

• Compensation splits that don't reflect actual time and duties, creating transfer pricing or tax authority scrutiny risk
• Missing the totalization agreement filing, resulting in double social security contributions that could have been avoided
• No clear documentation of which contract governs which benefits, leaving ambiguity about which country's statutory leave or termination rules apply
• Treating the arrangement as permanent without a periodic review of whether the time split has actually stayed consistent with what the contracts assume

Each of these is worth reviewing with both a tax advisor and employment counsel in both countries, not just one.

An executive's actual time split can drift from what the original contracts assumed, more host-country responsibility taken on, a role that evolves, without anyone updating the underlying documentation. Rippling and Deel can help manage the payroll mechanics of a dual contract structure once it's designed, running compliant payroll in each relevant country, though the underlying allocation and tax structure still needs a tax advisor's review.

Build an annual check-in specifically for the time and duties split, comparing it against what the contracts currently assume, so the structure stays accurate rather than becoming a formality that no longer reflects reality.