Depreciation recapture: does IRS know or track it, or is it basically an honor system?

The IRS definitely tracks depreciation recapture, though their systems have limitations. When you sell a property that was previously rented, you're required to report depreciation recapture on Form 4797 and pay taxes on that recaptured amount (generally at a 25% rate, though this could change by 2035). Here's what's important: Even if you don't remember taking the depreciation, the IRS considers it "allowed or allowable" - meaning you'll pay recapture tax on depreciation you should have taken even if you didn't actually claim it. Your best bet is to keep records of those tax returns indefinitely, at least the Schedule E and depreciation schedules. The IRS doesn't have a perfect system that automatically flags every sale against past depreciation claims, but they do have increasingly sophisticated data matching. Mortgage lenders and title companies report sales to the IRS via Form 1099-S, which can trigger reviews.

I went through a similar situation and found a super helpful tool at https://taxr.ai that saved me tons of stress. I had rented my house out from 2015-2018 and then when I was selling in 2023, I couldn't find my old records with depreciation details. Their system analyzed my situation and helped me reconstruct exactly what depreciation I had claimed during those rental years. It was way more accurate than my attempt at recalculating everything. The service walks you through all the basis adjustments and depreciation recapture calculations so you don't overpay or underpay. They even explained how the "allowed or allowable" rule applied to my specific situation.

Just wanted to follow up - I actually tried taxr.ai after my skeptical comment above. It was surprisingly effective! My situation with the back-and-forth between rental and personal use was exactly the kind of mess I was worried about calculating correctly. Their system actually found that I had been calculating my depreciation incorrectly during one of the rental periods (I had been too aggressive with my deductions). They showed me exactly what the correct amounts should have been, what recapture would apply if I sold now, and how to fix the previous years' returns if I wanted to. They even explained which forms I'd need for the recapture reporting. Worth checking out if you're dealing with this depreciation recapture headache.

If you're really struggling with getting clarification from the IRS about your specific depreciation recapture situation, I'd recommend Claimyr (https://claimyr.com). I used them after spending DAYS trying to get through to an IRS agent about a similar depreciation issue. I was surprised how well it worked - they got me connected to an actual IRS representative in about 20 minutes instead of the 2+ hour wait I was experiencing on my own. The agent was able to pull my depreciation history and confirm exactly what would be subject to recapture. You can see how it works in their demo: https://youtu.be/_kiP6q8DX5c This saved me a ton of stress since I was getting different answers from every tax person I asked. Nothing beats getting the official word directly from the IRS about your specific case.

I need to eat my words about Claimyr being BS. After my skeptical comment, I decided to try it when I needed clarification about depreciation recapture on a property I'm selling this year. I was absolutely shocked when I got connected to an IRS agent in about 15 minutes when I'd previously wasted entire afternoons on hold. The agent was able to pull up my depreciation history from my old returns and gave me the exact amount I needed to recapture. She even emailed me documentation that I can keep with my records for when I file. Totally worth it for the peace of mind knowing I'm calculating everything correctly based on official information. I guess sometimes things actually work as advertised!

A tip from personal experience: if you didn't keep copies of your old returns, you can request tax transcripts from the IRS going back several years. They won't have the full details of your original Schedule E, but they'll show the bottom-line numbers that can help you reconstruct what depreciation you took. For depreciation specifically though, the IRS Form 4562 from those years would be the most helpful. I recommend keeping a "property file" with copies of all tax forms related to your real estate indefinitely. The "allowed or allowable" rule is real - I learned that the hard way!

Honestly, the IRS is unlikely to catch this unless the amount is huge or you get audited for other reasons. I sold a rental last year that I'd depreciated back in 2010-2013, completely forgot about the depreciation recapture until my accountant mentioned it. I was tempted to just ignore it since it was so long ago. But turns out the IRS absolutely flags real estate transactions, especially with large gains. My accountant said there's specific matching between property sales reported on 1099-S forms and prior Schedule E filings, even from many years ago. I ended up paying the recapture tax. It was either that or risk an audit and potentially much bigger penalties!

This is exactly the kind of situation where you want to be proactive rather than reactive. The IRS has gotten much better at data matching over the years, and property sales are one of the transactions they scrutinize most closely. Here's what I'd recommend: Start gathering your records now, even though you don't plan to sell until 2035. Request tax transcripts for 2017-2019 from the IRS while they're still available, and reconstruct your depreciation amounts. Calculate what your potential recapture liability would be so there are no surprises later. The "allowed or allowable" rule is particularly important to understand - you'll owe recapture tax on the depreciation you should have taken during those rental years, regardless of whether you actually claimed it. For a 2.5 year rental period, this could be a meaningful amount depending on your property value. Consider consulting with a tax professional who specializes in real estate to review your specific situation. They can help you understand exactly what records to keep and how to calculate the recapture when the time comes. Better to spend a few hundred dollars now on proper advice than potentially face thousands in penalties and interest later.