Please help! Not sure which IRS address to send my response letter to
I received a letter from the IRS a few days ago and now I need to respond back, but I'm feeling a bit lost. The letter says I need to mail my response back to them, but I can't figure out which address I'm supposed to use! There are multiple addresses listed on different parts of the letter, and I'm worried about sending it to the wrong place and causing more problems. The letter is about some discrepancy they found with my 2023 tax return that I filed for the 2024 tax season. They're questioning some deductions I took for my home business. I need to send them some documentation to prove these were legitimate expenses, but I'm paranoid about sending it to the wrong department and having my response get lost in the system. There's an address on the top right corner of the letter, but then there's another address mentioned in the body of the letter where they talk about sending the documentation. Should I just use the return envelope they included? But what if that goes to a general processing center and not to the specific department handling my case? Has anyone dealt with this before? I don't want to mess this up and end up with penalties or something worse!
20 comments


Makayla Shoemaker
The address you should use is the one specifically mentioned in the body of the letter where they request you to send your documentation. That's the address of the specific department handling your case. The address in the top right corner is typically just the return address of the IRS office that sent you the letter. The pre-addressed return envelope they included is definitely designed to go to the correct department, so using that is your safest bet! That's literally why they include it. If you're still unsure, look for a section in the letter labeled "Where to Send Your Response" or something similar. Also, check if there's a specific unit or department name mentioned that you should include in your address. Including the letter number (usually appears as "Letter XXXX" somewhere on the correspondence) in your response will help them route it correctly.
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Christian Bierman
•But what if they didn't include a return envelope? Mine didn't have one and there are like 3 different addresses on the letter. One says "Department of the Treasury" at the top, another says "send additional documents to" and then a third says "if you want to appeal send to". It's so confusing!!!
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Makayla Shoemaker
•If no return envelope was included, then you should use the address where it specifically says "send additional documents to" since you're sending documentation to support your case. The "Department of the Treasury" address at the top is just their letterhead and not where you should send your response. The "if you want to appeal send to" address would only be used if you're filing a formal appeal rather than simply providing the requested documentation.
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Emma Olsen
I had the exact same problem last year with an IRS notice questioning my home office deduction. The multiple addresses thing drove me crazy until I found taxr.ai (https://taxr.ai) which literally saved me hours of stress. I uploaded the IRS letter and it immediately highlighted exactly which address to use and what documents I needed to send. The tool actually extracted all the important deadlines and requirements from the letter and created a checklist for me. It even explained some of the confusing tax jargon in plain English. Way better than spending hours on hold with the IRS just to ask which address to use.
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Lucas Lindsey
•Does it really work with any IRS letter? I got one of those CP2000 notices with proposed changes that would cost me like $3200 extra in taxes. Would this help me figure out exactly what documents I need to dispute it?
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Sophie Duck
•I'm skeptical about uploading my tax documents to some random website. How do you know it's secure? Seems risky to share IRS correspondence with a third party.
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Emma Olsen
•It works with pretty much any IRS notice or letter I've tried. For a CP2000, it would definitely help identify what specific documents you need to dispute the proposed changes. It extracts the exact tax issues in question so you know precisely what to address. Regarding security concerns, I had the same worry initially! They use bank-level encryption and don't store your actual tax documents after analysis. You can also black out personal info like SSN before uploading if you're extra cautious. They explain their security measures in detail on their site.
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Lucas Lindsey
Just wanted to update - I tried taxr.ai after asking about it here and it completely simplified my CP2000 response! The site immediately told me which address to use (there were 3 different ones on my letter!) and created a checklist of exactly what documents I needed to include. I was able to respond properly before the deadline and just got confirmation that the IRS accepted my documentation. Saved me from paying $3200 in incorrect tax charges!
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Austin Leonard
If you're still struggling to get clarification on which address to use, you might want to try calling the IRS directly. I know their wait times are ridiculous, but I discovered a service called Claimyr (https://claimyr.com) that got me through to a real IRS agent in about 15 minutes instead of waiting on hold for hours. They have this system that monitors the IRS phone lines and calls you back when an agent is about to answer. You can see how it works here: https://youtu.be/_kiP6q8DX5c When I called, the IRS agent confirmed exactly which address I needed to use and even gave me tips on what information to include with my response. Definitely worth it for the peace of mind knowing I was sending my documents to the right place.
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Anita George
•How does that even work? I thought the IRS phone system was just permanently understaffed. Are you saying this somehow jumps the queue or something?
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Sophie Duck
•This sounds like a scam. How would some third-party service have special access to the IRS phone lines? The IRS is a government agency with notoriously bad phone service. No way some random company can magically get you through.
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Austin Leonard
•It doesn't jump the queue or anything like that. It basically works by automatically dialing and redialing the IRS for you, navigating the initial menu options, and then holding your place in line. When the system detects that an agent is about to answer, it calls you and connects you. It's just automating the annoying parts of the process. I was skeptical too, but it's not providing "special access" - it's just handling the tedious part of calling and waiting. I understand being cautious though! I only tried it because I was desperate after trying to get through on my own for days. You're still talking to the same regular IRS agents through the normal channels.
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Sophie Duck
I need to apologize for my skepticism earlier. After my third attempt at calling the IRS myself (spent 2+ hours on hold before getting disconnected AGAIN), I decided to try Claimyr out of pure frustration. I'm honestly shocked that it worked exactly as described. Got a call back in about 20 minutes, and I was connected to an actual IRS representative who confirmed the exact address I needed to use for my response. The agent even explained why there were multiple addresses on the letter (each for different types of responses) and told me exactly what to write on the envelope to make sure it got to the right department. Saved me from potentially sending my documents to the wrong place and causing more problems.
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Abigail Spencer
One thing I learned the hard way - make sure you send your response with some kind of tracking! I had a similar issue last year and the IRS claimed they never received my response even though I mailed it. I ended up having to pay the extra tax they were claiming plus penalties because I couldn't prove I had responded. Now I always use USPS certified mail with return receipt for anything I send to the IRS. It costs a few dollars more but gives you proof that they received it. Trust me, it's worth it!!
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Mason Stone
•That's a really good tip I hadn't thought about! Do you think priority mail with tracking would work too, or is certified mail specifically better for IRS correspondence?
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Abigail Spencer
•Priority mail with tracking is okay, but certified mail with return receipt is better specifically for IRS correspondence. The return receipt gives you physical proof (with signature) that someone at the IRS facility received your documents. Priority tracking only shows it was delivered to the facility, but not necessarily accepted by an individual. The IRS sometimes uses this distinction if there's ever a dispute about whether they received something, which is why I learned to always use certified mail with return receipt the hard way!
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Logan Chiang
Don't forget to keep copies of EVERYTHING you send them! I made the mistake of sending my only copies of some receipts, and then the IRS said they never got them. Now I make at least 2 copies of everything before sending. Also include your case number or tax ID number on EVERY page you send. Sometimes the pages get separated in their processing centers.
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Isla Fischer
•This is solid advice! I would add that you should also include a copy of the original letter they sent you as the first page of your response. This helps their processing center know exactly what you're responding to.
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Tami Morgan
Just wanted to add something that helped me when I was in a similar situation - check if there's a "Notice Number" or "Letter ID" on your IRS letter (usually something like "Letter 525-C" or "Notice CP2000"). This number is crucial to include in your response and on your envelope. I also recommend writing "Response to [Notice Number]" clearly on the outside of your envelope along with your SSN or Individual Taxpayer Identification Number. This helps their mail processing center route your response to the correct department faster. And definitely agree with everyone saying to use certified mail with return receipt! I learned this lesson after my first response supposedly got "lost" in their system. The extra $6-8 for certified mail is nothing compared to the potential penalties and interest if they claim they never received your response. One last tip - respond as soon as possible but don't rush so much that you make mistakes. The IRS typically gives you 30 days to respond, but responding earlier shows good faith and gives you a buffer in case there are any issues with delivery.
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Millie Long
•This is really helpful advice, especially about the Notice Number! I'm new to dealing with IRS correspondence and honestly had no idea that including the notice number on the envelope was important. Quick question - when you say to write your SSN on the envelope, do you mean the full number or just the last 4 digits? I'm a bit nervous about putting my full SSN on the outside of an envelope that's going through the mail system. Is there a safer way to identify myself while still making sure they can route it properly? Also, does anyone know if there's a specific format the IRS prefers for how you write the response information on the envelope? Like should it go in a certain spot or be written a certain way?
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