One of the financial advantages of locum tenens work is the ability to deduct certain travel expenses when you take a temporary assignment away from home. Hotel bills, airfare, mileage, and meals can add up quickly, so these deductions may be substantial.

But there is an important rule that locums physicians should understand:

Once an assignment is expected to last more than one year, the tax treatment changes significantly.

As a physician working from home, you have two methods to calculate your home office deduction: the simplified method and the actual expense method. While the simplified method appears straightforward on the surface, recent tax law changes—particularly the increase in SALT deduction limits—have shifted the calculation in ways that may surprise you.