The Short-Term Rental Loophole
Under Internal Revenue Code (IRC) Section 469, rental activities are generally classified as passive activities by default, regardless of your level of participation. This means passive losses from real estate cannot normally be offset against active income, such as W-2 wages or business profits.
However, there is an exception to this rule. If a property's average guest stay is 7 days or less, it is excluded from the IRS definition of a "rental activity" under Treasury Regulation Section 1.469-1T(e)(3)(ii)(A). By bypassing this rental classification, the property is treated as a business rather than a passive rental, allowing tax losses to potentially offset non-passive income.
The 7-Day Average Rule
To utilize this loophole, the average customer stay across the tax year must be 7 days or less. Keeping accurate guest calendars and logs is critical to verifying this standard in the event of an IRS review.