How to Calculate Schedule E Depreciation for Partially Rented Property?
I'm trying to figure out how to properly calculate depreciation on the rental portion of my house for Schedule E. I own a two-story home and I'm renting out the basement apartment, which is about 35% of the total square footage. I know the depreciation goes on line 18 of Schedule E, but I'm completely lost on how to actually calculate this. I've been reading through Publication 946 which mentions using GDS (General Depreciation System), but then it starts talking about filing Form 4562 and Section 179 deductions. I'm not sure if Section 179 even applies to a partially rented residential property like mine? The whole thing is making my head spin. Can someone please break this down in simple terms? What tables or instructions should I be using to calculate the depreciation correctly? I want to make sure I'm doing this right for my 2024 taxes (filing in 2025). Thanks in advance for any help!
19 comments


Emily Jackson
For a partially rented residential property, here's how you'd handle the depreciation on Schedule E: First, you need to determine the basis for depreciation. Take the lower of your cost basis (purchase price plus improvements) or fair market value when you converted it to rental use. Then multiply that by the percentage used for rental (35% in your case). For residential rental property, you'll use the General Depreciation System (GDS) with a 27.5-year recovery period. You don't actually need to worry about Section 179 for this - that's for business equipment and doesn't apply to residential rental real estate. You'll use Form 4562 to report the depreciation if this is your first year claiming it. In subsequent years, you may not need to file Form 4562 unless you're putting new property into service. To calculate the annual depreciation amount: (Property Basis × Rental Percentage) ÷ 27.5. For example, if your basis is $300,000, the rental portion is $105,000, and your annual depreciation would be about $3,818.
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Liam Mendez
•Thanks for this explanation! I have a similar situation but I converted my property mid-year (July). Do I take the full year's depreciation or only for the months it was a rental?
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Emily Jackson
•For a mid-year conversion, you'd use what's called the "mid-month convention." The IRS considers you to have placed the property in service in the middle of the month regardless of the actual day. So if you started renting in July, you'd get 5.5 months of depreciation for the first year (mid-July through December). For residential rental property, you'd look at the percentages in Table A-6 in Publication 946 for the first year. After that, you'd get a full year's depreciation for each complete year, and then whatever remains in the final year.
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Sophia Nguyen
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Jacob Smithson
•Did the tool help you figure out if you needed to file Form 4562? That's the part I'm most confused about. And does it handle partial year calculations if you didn't rent for the whole year?
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Sophia Nguyen
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Ava Kim
Don't forget to separate the land value when calculating depreciation! This is a common mistake. Land isn't depreciable, so you need to determine what portion of your property value is for the building only. Your county property tax assessment often breaks this down, or you can use a reasonable method to determine the split (like 80% building/20% land in many residential areas). Also, remember that anything with a useful life of less than 27.5 years (appliances, carpeting, etc.) can be depreciated on a faster schedule than the building itself. This is called component depreciation and can give you bigger deductions sooner.
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Andre Laurent
•How do you handle component depreciation on a tax return? Is that something that goes on a separate form? My refrigerator in the rental unit is only about 3 years old.
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Ava Kim
•For component depreciation, you'd list each item separately on Form 4562. For example, a refrigerator would typically be 5-year property under GDS. You'd list its basis separate from the building. This can be advantageous because instead of getting a small piece of the deduction over 27.5 years, you get to recover the cost of appliances and fixtures much faster. For a refrigerator, you'd recover the entire cost within just 6 tax years (5-year property takes 6 calendar years because of the half-year convention). Just make sure you have documentation of the value of these components when you placed them in service.
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Ethan Anderson
I find that TurboTax actually does a decent job with rental property depreciation. It asks you questions about when you placed the property in service, the value, percentage used for rental, etc., and then automatically calculates everything, including filling out Form 4562 when needed. If you do use tax software, just make sure you have all your info ready: purchase price of the property, fair market value when converted to rental, percentage used for rental, and an estimate of land value (which isn't depreciable).
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Layla Mendes
•Does TurboTax handle the Section 179 stuff automatically? Or tell you when it doesn't apply? That's the part where I get confused.
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Dmitry Popov
•Yes, TurboTax handles Section 179 automatically and will tell you when it doesn't apply. For residential rental property like what Andre is dealing with, Section 179 doesn't apply at all - it's only for business equipment and certain business property. TurboTax recognizes this and won't even present Section 179 as an option for residential rentals. The software is pretty good at walking you through the depreciation process step by step. It will ask about the property type, when it was placed in service, and automatically apply the correct depreciation method (27.5 years for residential rental property using the mid-month convention). Just make sure you answer the questions accurately about the rental percentage and conversion date.
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