If you filed a Schedule E in 2024 that claimed a loss, check to see if you had any unallowed losses listed on Form 8582, Part VII.
Unallowed losses are a result of a business or property where the taxpayer (and spouse) did not
materially participate. This is known as a passive activity. Passive losses can only be offset by passive income. Otherwise, it is suspended and carried forward to a future year until it is used up or the business or property is disposed of.
Also see
Vacation Home Limitations