Should I file Form 3115 to catch up on missed rental property depreciation?
My wife and I bought a house back in 2013 while I was still a civilian. In early 2014, I joined the Navy and we had to relocate across the country. We tried selling our home for about 6 months with no luck, so we decided to rent it out. I have a few questions about the depreciation on this rental property: 1. We moved out in February 2014, but didn't get tenants until November 2014. When would the property officially be considered a rental/business property instead of personal - when we moved out or when tenants moved in? 2. I've been using TurboTax for our tax returns but never claimed depreciation on this rental house. For our 2024 taxes, the software flagged this and suggested I should have been taking depreciation all along. I'm not sure if I need to file Form 3115 to catch up on depreciation or if I need to amend previous tax returns. What's the correct approach? 3. If I catch up on depreciation now, would the IRS give me any refunds for what I should have received in previous years, or is that money just lost? For context, it's a 3-bedroom single family home that's been continuously rented since November 2014. We haven't made any significant improvements. The house value (excluding land) was approximately $135,000 when we converted it to a rental.
21 comments


Javier Gomez
The property is considered a rental when you convert it to rental use - which would be November 2014 when your tenants moved in. Just having it vacant doesn't qualify it as a rental property yet. For the depreciation issue, you're actually required to take depreciation on rental properties even if you forgot to do so. The IRS calls this "allowed or allowable" depreciation. When you eventually sell the property, you'll be taxed as if you had taken the depreciation all along, even if you didn't actually claim it on your returns. You don't need to amend previous returns. Instead, you should file Form 3115 (Application for Change in Accounting Method) with your 2025 tax return. This lets you catch up on the depreciation you should have been taking without penalties. You'll claim the "catch-up" amount all at once on your 2025 return. Unfortunately, you won't get refunds for prior years since you're not amending those returns. But filing Form 3115 will let you claim that missed depreciation now and avoid being taxed on it later when you sell.
0 coins
Emma Wilson
•Wait, so even if they didn't claim depreciation in the past, the IRS will still tax them as if they did when they sell? That doesn't seem fair. And how exactly does Form 3115 work? Is it complicated to fill out? I'm in a similar situation.
0 coins
Javier Gomez
•Yes, the IRS will still reduce your basis by the amount of depreciation you should have taken, even if you didn't claim it. This is called "allowed or allowable" depreciation. It's their way of ensuring people don't skip depreciation to avoid the depreciation recapture tax later. Form 3115 is somewhat complex, but most tax software can help you complete it. You'll report the "missed" depreciation as a Section 481(a) adjustment, which essentially lets you catch up all at once. It's definitely worth doing, especially if you've missed several years of depreciation deductions. The form has multiple sections, but for this specific situation (missed depreciation), you'll focus primarily on certain parts. Consider getting professional help if you're not comfortable with it.
0 coins
Malik Thomas
I was in almost the exact same situation! Military move, couldn't sell our house, became accidental landlords. I also missed claiming depreciation for like 3 years. I found this amazing tool at https://taxr.ai that literally saved me hours of frustration. I uploaded my previous tax returns and it identified exactly how much depreciation I should have claimed each year. It even populated the Form 3115 for me with all the right numbers and codes. The tool confirmed what the previous commenter said - you definitely need Form 3115, not amended returns. It makes the whole depreciation catch-up WAY less confusing. I printed out the completed form and just attached it to my regular tax return. Super simple and I got that nice depreciation deduction I should have been getting all along.
0 coins
Isabella Oliveira
•How exactly does this work? Does it just tell you what you should have been depreciating or does it actually calculate the numbers for you? We've had a rental for 5 years and I think we might have been depreciating it wrong the whole time.
0 coins
Ravi Kapoor
•This sounds useful but I'm always skeptical of these online tools. How do you know it's calculating everything correctly? Did you double-check the numbers with an accountant?
0 coins
Malik Thomas
•It actually calculates everything for you. You just enter when you started renting the property, the property value (minus land), and any improvements you've made. It figures out the correct depreciation for each year, what you should have claimed, and populates the 3115 with all the right codes. I was skeptical too! So I actually took the completed form to my tax guy to review before submitting. He said it was done perfectly - all the right depreciation rates, the right adjustment amounts, and the correct tax codes. He was pretty impressed and said it would have taken him a couple hours to prepare the same form manually. That's why I recommend it - it's tax professional approved but way more affordable.
0 coins
Ravi Kapoor
Wanted to follow up about my experience with taxr.ai after seeing it recommended here. I was in the same boat with a rental property I hadn't been depreciating correctly. I was skeptical at first, but decided to give it a try. It was surprisingly straightforward. I uploaded my previous returns and property details, and within minutes it showed me that I'd missed about $22,000 in depreciation deductions over 4 years! The system generated my Form 3115 with all the correct codes and amounts. Even showed me exactly where the catch-up deduction would appear on my tax return. Just filed my taxes last week with the form attached and already got confirmation my return was accepted by the IRS. Honestly wish I'd known about this tool years ago - would have saved me a lot of confusion and probably some money too.
0 coins
Freya Larsen
Quick question - I've been dealing with another issue with my rental property tax situation. Been trying to call the IRS for WEEKS with no luck. Always on hold for hours or get disconnected. Has anyone found a way to actually speak to someone at the IRS about complicated tax situations? I used https://claimyr.com and it actually worked! You can see a demo of how it works here: https://youtu.be/_kiP6q8DX5c - basically they hold your place in the IRS phone queue and call you when an agent picks up. I was honestly shocked when my phone rang and there was an actual IRS person on the line. Got my questions answered about my rental property depreciation situation in a 20-minute call instead of spending days trying to reach someone.
0 coins
GalacticGladiator
•How does that service actually work? Does it cost money? Seems too good to be true that someone could somehow get through the IRS phone system when I've been trying for months.
0 coins
Omar Zaki
•This has to be a scam. There's no way to skip the IRS phone line. And they probably charge a fortune for something that doesn't work. I'll stick to waiting on hold for 3 hours like everyone else.
0 coins
Freya Larsen
•It works by using technology to navigate the IRS phone system and wait in the queue for you. When a representative answers, the system immediately connects them to your phone. It's basically like having someone else wait on hold for you. Yes, there is a fee for the service, but considering I spent 3+ hours on multiple attempts and never got through, it was worth it to me. Think about your hourly rate at work - if you make more than minimum wage, it's probably cheaper to use the service than waste hours of your time on hold.
0 coins
Omar Zaki
I have to apologize and eat my words. After calling the service a scam, I was still unable to get through to the IRS after two more failed attempts (waited 2+ hours and got disconnected AGAIN). Out of desperation, I tried Claimyr. Went to their website, paid the fee, and entered my phone number. About 75 minutes later (while I was grocery shopping, not sitting by my phone), I got a call connecting me to an actual IRS agent. I was absolutely shocked. Got all my rental property depreciation questions answered and the agent even helped me understand exactly what I needed to submit with my Form 3115. I stand corrected - completely worth it when you have a complex tax situation that can't be resolved through their website. Saved me from taking time off work to visit an IRS office in person.
0 coins
Chloe Taylor
Just wanted to add that when filling out Form 3115 for missed depreciation, make sure you're using the right method. Residential rental properties should be depreciated over 27.5 years using the straight-line method. If you're using tax software, they should handle this, but good to double-check. Also, be aware that while Form 3115 lets you catch up on missed depreciation, the IRS only allows you to claim this "catch-up" amount on the current year's return. You won't get back what you could have saved in previous years.
0 coins
NebulaNinja
•Thanks for this info. How do I determine the value of just the building without the land? The county tax assessment has values for both, but I've heard those aren't always accurate for tax purposes. Should I get an appraisal?
0 coins
Chloe Taylor
•You don't necessarily need a new appraisal. The property tax assessment is actually a common way to determine the building-to-land ratio. If your tax assessment shows the building is 80% of the total value and land is 20%, you can apply that same ratio to your purchase price. Another approach is to use the values from your closing documents or homeowner's insurance policy, which often list the replacement value of the structure separate from the land. Just make sure to document your methodology in case of an audit.
0 coins
Diego Flores
Don't forget about the year of disposition too! The year you convert a property back to personal use or sell it has special depreciation rules. You generally only get half the annual depreciation in the year you place it in service AND in the year you dispose of it (the "mid-month convention").
0 coins
Anastasia Ivanova
•I thought the half-year convention only applied to certain types of business property, not residential rentals? Aren't rental properties subject to the mid-month convention instead?
0 coins
Liam Fitzgerald
•You're absolutely right @ac6dc0772264! Residential rental properties use the mid-month convention, not the half-year convention. For residential rentals (27.5 years), you get a partial month's depreciation in the first month you place it in service and in the month you dispose of it. So if you started renting in November, you'd get 1.5 months of depreciation that first year (November and half of December). Thanks for catching that - it's an important distinction that could affect the Form 3115 calculations.
0 coins
Ravi Choudhury
Great information in this thread! Just to summarize the key points for @dcac7ecca8da: 1. Your rental property conversion date is November 2014 when tenants moved in, not when you moved out 2. Form 3115 is definitely the right approach - don't amend prior returns 3. You'll get the catch-up depreciation deduction on your 2025 return, but no refunds for prior years 4. The IRS will still treat you as having taken depreciation when you sell (even though you didn't), so filing Form 3115 now prevents you from losing those deductions entirely One additional tip: make sure to keep good records of when you converted the property to rental use and any improvements you've made since then. The IRS may ask for documentation if they have questions about your Form 3115. Also, since you mentioned this is a military move situation, you might want to check if there are any special provisions that apply to your situation, though the standard depreciation rules should still apply to your rental property. Good luck with your filing!
0 coins
Jamal Washington
•This is such a helpful summary! I'm actually in a very similar situation - military relocation led to unexpected landlord status. One quick question though: when you mention keeping records of the conversion date, what specific documentation should we be looking for? I have the lease agreement from November 2014, but is there anything else the IRS typically wants to see to prove when rental use began? Also, @dcac7ecca8da, have you already started working on your Form 3115 or are you still gathering information? I'm debating whether to tackle this myself or get professional help given how many years of missed depreciation we're talking about.
0 coins