Whether you manage business travelers, short-term international employees, or remote workers, you have no doubt heard about the “183-day rule.” Both globally and domestically, many tax jurisdictions expect an employer (as well as the employee) to track and report non-resident business travel. However, simply applying a “183-day” threshold does not always work to ensure tax compliance. Here we will take a deeper dive into the impact of income tax treaties on the tax cost of business travel, short-term assignments, and remote work scenarios.