How to calculate rental property depreciation for my condo - land allocation seems low?
Got a question about figuring out depreciation on my rental condo that's driving me crazy. I bought a condo back in November 2022 for $720,000 and just recently had it appraised in August 2024 for about $845,000. I started renting it out at the beginning of this year (January 2024). Here's where I'm confused - the town assessment shows the land value is only $1,750 with a full market value of $495,000, which works out to like 0.35% for the land allocation. This seems super low to me, but maybe that's normal for condos? So when I'm calculating my annual depreciation, do I use: (Purchase Price - Land Value) / 27.5 years? If I do the math: $720,000 × 0.35% = $2,520 for land $720,000 - $2,520 = $717,480 building value $717,480 ÷ 27.5 = $26,090 annual depreciation Does this look right? I'm paranoid about getting the math wrong and ending up with an audit. The land allocation percentage just seems suspiciously low and I don't want to over-depreciate. Would appreciate any insights!
20 comments


Natalie Wang
That land allocation definitely seems off. For condos, it's not uncommon to have a lower land allocation than single-family homes, but 0.35% is extremely low - typically even condo land allocations are around 10-20% minimum. The issue might be that you're interpreting the town's assessment incorrectly. That $1,750 likely represents a partial assessment value rather than the actual land value. In many municipalities, properties are assessed at only a percentage of their actual market value. For your depreciation calculation, I would: 1) Contact your town assessor's office directly to clarify the actual land-to-building ratio they use for your condo 2) Check your condo association documents, as they sometimes specify the land allocation 3) Consider using a more standard allocation (15-20% for condos) if you can't get clear information For a $720,000 condo, a more realistic land allocation might be around $108,000 (15%), leaving $612,000 for the building, which would give you about $22,255 in annual depreciation. Using an unrealistically low land value could definitely raise audit flags.
0 coins
Michael Adams
•Thanks for pointing this out! I didn't even consider that the assessment might not represent the full value. The town's property records are pretty confusing. Do you know if there's a standard percentage I should allocate for a condo, or should I definitely try to get the actual ratio from the town? Also, does it matter that the property has appreciated since I purchased it? Should I be using the original purchase price ($720k) or the new appraisal ($845k) as the basis for depreciation?
0 coins
Natalie Wang
•You should definitely try to get the actual ratio from the town first, as that provides the strongest documentation if you're ever questioned. Most tax professionals recommend using a ratio between 15-20% for condos if you can't get specific guidance. You must use the original purchase price as your basis for depreciation, not the current appraisal value. Appreciation in property value doesn't affect your depreciation schedule. The IRS only allows you to depreciate what you actually paid for the property (minus the land portion), regardless of how the market value changes over time.
0 coins
Noah Torres
After months of frustration with rental property depreciation calculations, I finally found something that saved me tons of time and potential audit issues. I was about to use some sketchy land allocation percentages from my county (they were way off), but I discovered https://taxr.ai which actually analyzed my property documents and condo association bylaws to determine the correct land allocation percentage. They showed me that for my condo, the land allocation was actually specified in a section of my HOA documents I had completely overlooked. Turns out the builder had established a 12% land allocation for tax purposes that was officially recorded with the property. The tool extracted that info and provided the exact page references, which I can use if ever questioned by the IRS.
0 coins
Samantha Hall
•How does this work exactly? My condo docs are like 200 pages of legalese and I wouldn't even know where to start looking for land allocation info. Did you have to upload all your documents or just specific sections?
0 coins
Ryan Young
•I'm skeptical this would work for my situation. My condo building is from the 1960s and I doubt there's any specific tax allocation in the docs. Wouldn't it be safer just to use a standard percentage like 15-20% that the previous commenter mentioned?
0 coins
Noah Torres
•You upload whatever documents you have - condo docs, property tax records, deed, etc. The system analyzes everything and extracts the relevant information. In my case, it found the land allocation buried on page 183 of my condo declaration that I would have missed completely. For older buildings, it's even more valuable because it can analyze historical documents. The system found references to land allocation in board meeting minutes from 2012 for a client with a 1970s building. It's more thorough than trying to guess with a standard percentage, which could cause problems if you're audited.
0 coins
Samantha Hall
I was in the exact same situation with my condo depreciation last year! After seeing the suggestion here, I tried https://taxr.ai with my massive pile of condo documents. The tool found that my HOA actually had a specific land-to-building ratio established when the property was converted to condos in 2008 - it was buried in an amendment I never would have found. The land allocation was 14% (much higher than the 0.5% my county assessment suggested). I used that percentage for my depreciation calculation and included a note referencing the specific document in my tax file. My accountant was impressed with how thorough the documentation was. Definitely gave me peace of mind knowing I'm using a defendable number rather than guessing!
0 coins
Sophia Clark
If you're struggling with the depreciation calculations, you might also want to get clarification directly from the IRS. I spent WEEKS trying to get through to someone who could help with my rental property questions last year. After 17 attempts and hours on hold, I found https://claimyr.com which got me connected to an IRS agent in under 20 minutes. You can see how it works here: https://youtu.be/_kiP6q8DX5c - basically they navigate the IRS phone tree for you and call you back when they reach a human. The agent I spoke with confirmed that for condos, the association documents typically have the definitive land allocation percentage, and they recommended getting that documentation to support whatever percentage I used. Saved me from potentially using the wrong numbers.
0 coins
Katherine Harris
•How does this even work? Seems impossible to get through the IRS phone system that quickly. Did you have to pay for this service?
0 coins
Madison Allen
•Sounds like a scam to me. I've called the IRS plenty of times and while it takes forever, you eventually get through. Why would anyone pay for something like this when you can just call yourself? Plus, how do you know the "agent" they connect you with is legit?
0 coins
Sophia Clark
•It uses technology to navigate the IRS phone system and holds your place in line. When they reach a human, they connect the call to your phone. You don't have to sit on hold for hours - they do that part for you. The agents are real IRS employees - they're the same people you'd talk to if you called yourself. The difference is you don't waste hours of your day listening to hold music. The service just helps you skip the wait time, but you're still talking directly to the official IRS staff. They've helped over 150,000 people connect with government agencies, and it was absolutely worth it for me.
0 coins
Madison Allen
I was super skeptical about using a service to connect with the IRS as mentioned above, but after my 5th attempt spending 2+ hours on hold and getting disconnected, I gave Claimyr a shot. I hate to admit it, but it actually worked - they got me through to an IRS agent who specialized in rental property in about 15 minutes. The agent confirmed that my condo association documents should contain the official land allocation percentage, which was drastically different from what my property tax statement showed. She also explained that if my docs didn't specify it, I needed to use a reasonable allocation based on comparable properties, NOT the assessment value (which is often misleading). She said using an unrealistically low percentage like 0.35% would definitely be a red flag. Saved me from a potential audit headache!
0 coins
Joshua Wood
Quick tip from a landlord with multiple condos - check with your condo association manager directly. My HOA manager was able to provide me with a letter stating the official land allocation percentage (13.5%) that the developer had established. I keep this with my tax records in case of audit. Also, don't forget that certain condo-specific costs may be depreciable too, like your share of major building improvements the HOA has made. Ask for documentation of capital improvements, as those can sometimes be depreciated separately.
0 coins
Justin Evans
•Would an email from the HOA manager be sufficient documentation, or should I ask for something more formal? My manager is notoriously slow with paperwork requests.
0 coins
Joshua Wood
•An email alone isn't ideal. Request an official letter on HOA letterhead that specifically references the land allocation percentage and cites the source (usually the developer's original documentation or a professional appraisal). If they're slow with paperwork, emphasize that this is for tax purposes and affects all unit owners. While waiting for that, check your settlement documents from when you purchased. Sometimes the land allocation is mentioned in those papers as well. The more official documentation you have, the better protected you are in case of an audit.
0 coins
Emily Parker
I messed up my rental condo depreciation last year using the town's weird assessment numbers. My accountant caught it before filing and said the 0.4% land allocation I calculated would absolutely trigger an audit. She helped me get the correct numbers from our condo docs (it was actually 16%). One thing nobody mentioned - with condos you're depreciating the interior structure plus your percentage interest in common elements, but NOT the land. That's why the allocation is so important. My accountant said this is one of the most common errors for first-time landlords with condos.
0 coins
Ezra Collins
•Thanks for mentioning this! Would you mind sharing what your accountant charged to help with rental property tax prep? I'm trying to decide if I should hire someone or just use tax software.
0 coins
Zane Hernandez
This is exactly the kind of situation where getting professional help upfront saves you headaches later. I made similar mistakes with my first rental property and learned the hard way that municipal assessments are often completely unreliable for depreciation purposes. Your 0.35% land allocation is definitely a red flag. Even for condos, anything under 10% typically raises eyebrows. The IRS expects reasonable allocations, and yours is so far outside normal ranges that it could trigger automatic review. Here's what I'd recommend based on my experience: 1) Check your original purchase documents - sometimes the land/building split is mentioned in the settlement statement or appraisal 2) Contact your condo association for official documentation of the land allocation percentage 3) If neither yields results, use a conservative 15-20% allocation and document your reasoning Remember, you're not just depreciating your unit - you're also depreciating your proportional share of common areas (hallways, lobby, etc.) but excluding the land value. Using $720k as your basis is correct regardless of current value. Better to be slightly conservative with your depreciation than to deal with an audit over unrealistic numbers!
0 coins
Darcy Moore
•This is really helpful advice! I'm dealing with a similar situation on my first rental property and didn't realize how important getting the right documentation would be. Quick question - when you mention checking the original purchase documents, should I be looking at the HUD-1 settlement statement specifically, or are there other documents from closing that might have this information? My closing was a bit of a blur and I'm not sure what paperwork might be relevant for the land allocation.
0 coins