Calculating Rental Property Depreciation for 2024 Tax Returns - How to Handle Single Room Rentals?
So I bought a small house in Colorado last year but I live in Texas. From what I'm hearing, I need to figure out depreciation for this rental property on my 2024 tax returns? The thing is, I'm not renting out the whole place - just one bedroom to a college student while I keep the rest available when family visits. I'm super confused about how to calculate depreciation when only part of the property is generating income. Do I depreciate the entire house value or just a percentage based on the rented room's square footage? And do I need to file taxes in Colorado too since the property is there but I live in Texas? My tax software is giving me conflicting information, and I really don't want to mess this up and trigger an audit. Has anyone dealt with partial rental property depreciation before? Any advice on how to properly document this on my return would be amazing!
18 comments


Logan Chiang
Yes, you definitely need to calculate depreciation for your rental property on your 2024 tax returns, even if you're only renting out a portion of it. The IRS requires this - it's not optional, even if you're only renting a single room. For partial rentals like yours, you'll need to allocate expenses based on the percentage of the property being rented. The simplest method is to calculate the square footage of the rented room divided by the total square footage of the house. For example, if the rented room is 150 sq ft in a 1,500 sq ft house, that's 10%. You would then apply that percentage to many of your expenses (utilities, insurance, property taxes) as well as to the depreciable basis of the property. For depreciation specifically, you'd take the cost basis of the entire property (purchase price plus improvements, minus land value), multiply by your rental percentage, and then calculate depreciation on that amount (generally over 27.5 years for residential rental property). And yes, you'll likely need to file a nonresident state tax return in Colorado for the rental income earned there, while reporting all income on your Texas resident return as well.
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Isla Fischer
•This is super helpful, but I'm still confused about the land value part. How do I determine what portion of my purchase price was for the land vs the house itself? My closing documents don't break this down clearly.
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Logan Chiang
•You can usually find the land value on your property tax assessment from the county where your property is located. The assessment will typically show separate values for the land and the building/improvements. If you can't find this information, you could look at comparable land sales in the area or consult with a local real estate professional. Keep in mind that land is not depreciable, so it's important to make a reasonable allocation. If your property tax assessment shows the land is 20% of the total value, for instance, you would remove that 20% from your cost basis before calculating depreciation.
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Miles Hammonds
I went through this exact situation last year and was pulling my hair out until I found this tool called taxr.ai (https://taxr.ai). I was renting out a basement apartment in my primary residence and couldn't figure out how to properly allocate expenses and calculate depreciation. What was really helpful was that I could upload my closing documents and property tax statements, and the AI analyzed everything to determine the correct allocation between land and building. It even calculated my square footage percentages and showed me exactly how to report everything on Schedule E. Saved me hours of research and probably avoided some costly mistakes. The best part was that it explained why certain expenses were fully deductible vs. needing to be prorated based on rental percentage. I was making some big mistakes before using it!
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Ruby Blake
•Did it help with figuring out state tax requirements too? I'm in a similar situation with property in Arizona but I live in Washington, and I'm not sure if I need to file in both states.
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Micah Franklin
•I'm skeptical about these AI tax tools. How accurate was it with something as complicated as rental property allocation? Did you have a tax pro review it afterward?
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Miles Hammonds
•It definitely helped with the state tax requirements. It clearly explained that I needed to file a nonresident return in the state where my rental property is located, and it even provided links to the specific state tax forms I needed. Saved me from having to research all the different state requirements. As for accuracy, I was skeptical at first too, but I did have my accountant review everything and she was impressed with how thorough it was. She said it correctly handled all the allocations and depreciation calculations, even accounting for the mid-month convention that applies to rental property. The documentation it provided made her job easier too.
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Ruby Blake
Just wanted to follow up and say I tried taxr.ai after seeing the recommendation here. It was exactly what I needed for my cross-state rental situation! I uploaded my closing documents and property tax statements, and it walked me through everything step by step. It correctly identified that I needed to file in Arizona for my rental income and gave me specific instructions for the allocation method. The depreciation calculation was spot on, and it even flagged some deductions I was missing like mortgage interest specifically for the rental portion and travel expenses for property management visits. Really relieved to have this sorted out before tax season gets too crazy. Definitely worth checking out if you're dealing with rental property tax questions!
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Ella Harper
If you're having trouble getting answers from the IRS about rental property questions (which I definitely was), try Claimyr (https://claimyr.com). After waiting on hold for HOURS trying to clarify some depreciation questions about my rental, I found this service that got me connected to an actual IRS agent in about 15 minutes. They have this demo video (https://youtu.be/_kiP6q8DX5c) that shows how it works. Basically they navigate the IRS phone system for you and call you when they reach an agent. I was super skeptical at first but desperate after wasting an entire afternoon on hold. The agent I spoke with cleared up my confusion about whether I needed to use Form 8582 for my passive rental losses, and confirmed exactly how to handle the split between personal and rental use on my property. Definitely made me feel more confident about my filing.
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PrinceJoe
•How does this even work? I don't understand how they can get through faster than just calling the IRS directly. Seems like it would be the same wait time for everyone.
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Brooklyn Knight
•This sounds like complete BS to me. The IRS is notoriously understaffed and everyone deals with the same hold times. How could some random service possibly "skip the line"? I spent 3 hours on hold last week about my rental property questions.
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Ella Harper
•It works by using an automated system that continually calls the IRS and navigates through all the prompts. When they finally reach a human agent, they connect you to the call. So instead of you personally waiting on hold, their system is doing it for you, and you only get called when there's an actual agent ready to talk. I was just as skeptical as you are! I thought it sounded too good to be true. But what convinced me is that they don't promise zero wait time - they're just handling the hold process for you so you can go about your day. In my case, their system waited about 45 minutes, but I only had to be on the phone for the 15 minutes I was actually talking to the IRS agent.
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Brooklyn Knight
I need to eat my words from my previous comment. After my frustration with IRS hold times, I decided to try Claimyr out of desperation. I was absolutely convinced it wouldn't work, but I was trying to figure out how to handle depreciation recapture for a rental property I sold last year. I'm honestly shocked - within about 30 minutes I got a call connecting me to an actual IRS representative who answered all my questions about Form 4797 and how to report the sale correctly. No hours-long hold time, no getting disconnected after waiting forever. The agent confirmed exactly how to allocate the depreciation I had claimed over the years and calculate the recapture amount correctly. This saved me from potentially significant errors on my return. I'm still surprised it actually worked!
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Owen Devar
Don't forget about the other implications of renting out just one room. You'll need to track when the room is actually rented vs vacant. If it's vacant for a while, you can't claim expenses for those periods. Also tracking "shared" expenses like internet, utilities etc gets complicated. I would strongly recommend keeping a detailed log of all this stuff. The IRS loves to scrutinize rental property deductions, especially partial rentals. Trust me, I learned this the hard way when I had to provide documentation during a review of my return.
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Daniel Rivera
•Do you need a separate bank account for the rental income too? I'm about to start renting out my spare bedroom and wondering how detailed the bookkeeping needs to be.
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Owen Devar
•A separate bank account isn't absolutely required, but it makes your life SO much easier. It creates a clear separation between your personal finances and your rental business, which is extremely helpful if you ever get audited. As for bookkeeping detail, err on the side of too much rather than too little. Keep all receipts, maintain a spreadsheet tracking income and expenses by month, and document everything about the rental use (dates occupied, repairs, any personal use periods). Take photos before/after tenants for documentation of condition. The more organized you are now, the less stress you'll have at tax time or if questions come up later.
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Sophie Footman
One thing nobody's mentioned is that you should check if you can use the simplified method for home business deductions instead of calculating actual expenses. If the rented room is under 300 sq ft, you might be able to use the $5 per square foot deduction (up to 300 sq ft) which is MUCH easier than tracking all those individual expenses and doing all those calculations. Not sure if it applies perfectly to your situation but worth looking into!
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Connor Rupert
•That's for home OFFICE deductions, not rental property. The simplified method doesn't apply to rental income reported on Schedule E. They're totally different tax situations.
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