Passive Activity Rules: What They Are and Why They Matter
The passive activity loss (PAL) rules of Section 469 limit the ability to use losses from "passive activities" — those in which the taxpayer does not materially participate — to offset income from other sources. Before these rules were enacted in 1986, wealthy taxpayers commonly invested in tax shelter partnerships that generated artificial losses usable against ordinary income. Congress ended this practice by requiring passive losses to be suspended until either passive income from the same activity offsets them, the activity generates passive income in future years, or the entire interest in the activity is disposed of in a taxable transaction.
An activity is passive if the taxpayer does not materially participate — defined by the IRS through seven tests, the most practical being: the taxpayer participated more than 500 hours in the year, or their participation was substantially all the participation in the activity, or they participated more than 100 hours and no one else participated more. Rental activities are automatically treated as passive regardless of participation level, with important exceptions. Self-rental — renting property to a business in which the taxpayer materially participates — produces income that is treated as non-passive (preventing a passive activity from generating offsetting losses from a related passive activity).
The key planning implication: passive losses from rental properties and passive investments can only offset passive income from other passive activities — not wages, business income, or portfolio income (dividends, interest, capital gains). If you have $50,000 in rental losses and $50,000 in W-2 income, the losses are suspended and carried forward. If you have $50,000 in rental losses and $50,000 in income from another passive partnership, the losses can offset. Building a portfolio of passive activities that generates both income and losses requires strategic design to ensure the losses are usable in the current year rather than suspended.