Passive activity losses - from rental properties, limited partnerships, and other passive investments - can only offset passive income. They cannot reduce wages, S-corp income, or other active income. The grouping election under Treas. Reg. §1.469-4 is the primary tool for changing this calculus: by grouping multiple activities as a single activity, a taxpayer may be able to satisfy material participation across the group and convert what would be a passive loss into a non-passive, currently deductible loss. Done correctly, grouping is one of the most powerful and underused planning elections available.
The problem: A passive activity loss is suspended and carried forward. It can only offset passive income from other passive activities or be released on full disposition of the activity. It cannot offset wages, business income, or other ordinary income.
The solution: If activities are grouped as a single activity, material participation is measured across the group as a whole. A taxpayer who participates in multiple related activities for a combined total that meets one of the seven material participation tests can treat the grouped activity as non-passive - and the losses become currently deductible.
The constraint: The grouping election must make economic sense - activities must form an appropriate economic unit. You cannot group arbitrary unrelated activities to manufacture non-passive status.
Treas. Reg. §1.469-4(c)(1) permits grouping of activities that "constitute an appropriate economic unit for the measurement of gain or loss." The regulation identifies five relevant factors - none is determinative, and all are weighed together: (1) similarities and differences in types of businesses, (2) extent of common control, (3) extent of common ownership, (4) geographic location, and (5) interdependencies between activities (e.g., sharing of staff, facilities, customers, goods, or services).
A taxpayer who owns a hotel and a rental of commercial space to the hotel can group them - they share customers, management, and location. A taxpayer who owns a rental property and a completely unrelated consulting practice cannot group them - they share no economic characteristics.
The most strategically significant grouping election is available to real estate professionals under IRC §469(c)(7). A taxpayer who qualifies as a real estate professional (more than 750 hours of personal services in real property trades or businesses + more than 50% of total personal service hours in real property) can elect to group all rental activities as a single activity for material participation purposes. Without this election, each rental property is a separate activity and material participation is tested separately for each property. With the election, the hours spent across all properties are aggregated - making it far easier to satisfy the 500-hour material participation test and convert all rental losses from passive to non-passive.
The initial grouping election is made by filing a written statement with the taxpayer's original tax return for the first year in which the activities are treated as a group. Per Rev. Proc. 2010-13, the statement must identify the names, addresses, and employer identification numbers (if applicable) of the activities being grouped and declare that they constitute an appropriate economic unit for the measurement of gain or loss for purposes of section 469.
Once made, the grouping is generally binding for all future tax years and can only be changed if the original grouping was clearly inappropriate or a material change in facts makes it clearly inappropriate (Treas. Reg. §1.469-4(e)). The binding nature of the election means the initial grouping decision should be made carefully - it is not easily undone.
Treas. Reg. §1.469-4(d) prohibits certain groupings regardless of economic unity. A rental activity may not be grouped with a trade or business activity unless the two form an appropriate economic unit and either the rental is insubstantial in relation to the business, the business is insubstantial in relation to the rental, or each owner of the business has the same proportionate ownership interest in the rental. Real property rentals and personal property rentals may not be grouped together, and an activity conducted through a C corporation subject to §469 may be grouped with another activity only to determine whether the taxpayer materially or significantly participates.