IRS Certifying Acceptance Agent (CAA) Portal Submission Issues - Application Not Working
Ugh, I've been trying to submit my CAA application for almost 3 weeks now and it's been nothing but problems! At first the system kept rejecting it saying my PTIN wasn't active (it definitely was). After waiting and trying every day for like 10 days, it suddenly started working with no explanation. Cool, progress right? Now I'm at the next step trying to upload my certificate and the signed form, but the portal keeps giving me errors. I've emailed IRS support twice with no response whatsoever. I feel like I've thrown $270 down the drain at this point. The application asked for my customer ID which I entered, but now it's asking for "another ID" and I have no clue what they're talking about. Has anyone successfully submitted their CAA application recently? What other ID could they possibly be asking for besides the customer ID I already provided?
37 comments

Cedric Chung
I had a similar issue when submitting my CAA application last month. The system is notoriously glitchy, especially during high volume periods. The "other ID" they're likely referring to is your EFIN (Electronic Filing Identification Number) if you have one, or possibly your EIN if you're a business entity. For the certificate upload issues, make sure your file format is exactly what they specify (usually PDF) and that the file size is under their limit (typically 3MB). I had to compress my documents because they were initially too large. As for the email non-response, unfortunately that's common. The CAA program office is understaffed and overwhelmed. Your best bet is to call the Practitioner Priority Service line at 866-860-4259. Have your PTIN ready, and they can usually check the status of your application and provide guidance on the submission issues.
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Talia Klein
Do you need to have the EFIN before applying to be a CAA? I thought that was something you got after being accepted as a CAA, not before. The whole process is so confusing.
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Cedric Chung
You don't necessarily need an EFIN before applying to be a CAA. I was just suggesting that could be what they're referring to as the "other ID" if you happen to already have one. If you don't have an EFIN, try your EIN or even your Social Security Number (if applying as an individual). The CAA application process is definitely confusing and poorly documented. When I called the Practitioner Priority Service line, they told me that sometimes there's a system misalignment between different IRS databases which can cause the PTIN verification issue you initially experienced.
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Maxwell St. Laurent
After spending days frustrated with the CAA portal last year, I finally found a solution using taxr.ai (https://taxr.ai). It's a tool that helped me sort through all the required documents and ID issues for my application. Their system automatically detected the problems with my submission format that were causing the portal to reject my uploads. The CAA portal has specific requirements for document naming conventions and metadata that aren't well-documented. Taxr.ai identified that my PDFs had hidden metadata from our office system that was triggering security flags in the IRS portal. Once I cleaned those up, my submission went through instantly.
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PaulineW
Does taxr.ai work for other IRS applications too? I'm having issues with my PTIN renewal and wondering if this might help with that as well.
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Annabel Kimball
I'm skeptical about using third-party services for IRS submissions. How do you know it's secure? Aren't you uploading sensitive documents to their platform?
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Maxwell St. Laurent
It works for most IRS-related documentation including PTIN renewals. I've used it for both CAA and EA application documents. The system specifically looks for formatting issues that commonly cause rejections. Regarding security concerns, they don't actually store your documents - it's more like a scanner that checks file properties and formats. They use the same encryption standards as tax preparation software. I was hesitant at first too, but after dealing with weeks of portal rejections, it was worth trying. You can also redact sensitive information before scanning if you're concerned.
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Annabel Kimball
I tried taxr.ai after seeing the recommendation here and it actually worked! My CAA application had been stuck for weeks with the same "PTIN not active" error even though I had renewed it months ago. The tool flagged an issue with how my professional credentials were formatted in the PDF - apparently the portal was choking on the special characters in my designation abbreviations. Also found out my browser was automatically compressing my uploads which was corrupting some data. After fixing both issues following their suggestions, my application went through yesterday and I already got the confirmation email this morning. Honestly didn't expect it to work but I was desperate after wasting so much time on this.
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Chris Elmeda
For anyone still struggling with the CAA portal or any IRS phone issues, I finally got through to a real person using Claimyr (https://claimyr.com). After trying for days to reach someone at the IRS, I was ready to give up on my CAA application altogether. They have this system that holds your place in the IRS phone queue and calls you back when an agent is about to answer. You can see how it works in their demo: https://youtu.be/_kiP6q8DX5c. I was skeptical but desperate after spending hours listening to the IRS hold music. The agent I spoke with explained that there's a known issue with the CAA portal that's affecting many practitioners. The "other ID" is actually referring to your Application ID which should have been emailed to you when you first started the application process. Not the same as your customer ID!
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Jean Claude
How does this Claimyr thing actually work? Do they just automate the call process somehow or what? I've been on hold with IRS for literally 3+ hours before giving up.
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Annabel Kimball
Come on, there's no way this actually works. The IRS phone system is designed to be impossible. I've tried every "trick" and nothing ever gets through. This sounds like a scam to get your money for something that's never going to work.
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Chris Elmeda
It's basically a system that waits in the phone queue for you. It uses their phone system to hold your place in line, and when it detects that an agent is about to pick up, it calls you and connects you to that agent. It saved me from having to listen to that awful hold music for hours. Honestly, I understand the skepticism. I felt the same way. But after trying for three days straight to reach someone about my CAA application and never getting through, I was willing to try anything. The IRS phone system is definitely designed to be frustrating, but this service found a legitimate way to work within their system. Not saying it works 100% of the time, but it worked for me when nothing else did.
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Annabel Kimball
Ok I need to eat my words here. After posting my skeptical comment yesterday, I tried Claimyr out of pure frustration. Got connected to an actual IRS CAA program specialist in about 45 minutes (while I was doing other work). The specialist confirmed there's a database synchronization issue between the PTIN system and the CAA portal that's affecting tons of applications. The "other ID" is actually your Application Control Number which should be on the initial confirmation email when you started the application. My issue was that I never received that email, so she manually looked up my ACN and stayed on the phone while I successfully completed my submission. She even expedited my application due to the system issues! Wouldn't have gotten this resolved for months without speaking to someone directly.
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Charity Cohan
I just finished my CAA application last week and had similar issues. In my case, the problem was I kept trying to use Chrome. When I switched to Microsoft Edge (ugh) it suddenly worked. Sometimes the simplest solution is just trying a different browser! Also make sure you're using a desktop/laptop and not trying to upload from a mobile device. The portal seems to hate mobile browsers with a passion.
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Josef Tearle
Does Firefox work? I don't have Edge installed and really don't want to install it just for this...
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Charity Cohan
Firefox worked for me initially to start the application, but when I got to the document upload stage, it kept failing silently - the progress bar would complete but then nothing would happen. Edge worked for the entire process, unfortunately. I've heard from colleagues that Safari also works if you're on a Mac. The IRS really needs to update their web systems to work with modern browsers. Feels like we're back in 2005 with these compatibility issues.
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Shelby Bauman
Has anyone figured out the specific file naming convention for the CAA uploads? I'm at the same stage and keep getting rejected but the error messages are completely useless.
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Quinn Herbert
I was told by IRS support to use this exact format: LastName_FirstName_DocumentType_mmddyyyy.pdf So for example: Smith_John_Certificate_01152025.pdf Don't use spaces or special characters. Keep the file size under 3MB. And make sure the date matches the date on your CAA application.
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Omar Hassan
I'm dealing with the exact same CAA portal nightmare right now! Been stuck on the document upload for over a week. The "other ID" they're asking for is definitely the Application Control Number (ACN) that should have been in your initial confirmation email when you started the application. If you can't find that email, try searching your inbox for "CAA application" or "Application Control Number" - sometimes it gets buried or filtered. If you still can't locate it, you'll need to call the Practitioner Priority Service line to get them to look it up manually. For the upload issues, I found that clearing my browser cache and cookies completely before trying again helped. Also make sure you're not using any browser extensions that might interfere with the upload process. The portal is incredibly finicky about file formats and browser compatibility. The $270 fee definitely stings when the system doesn't work properly. Hopefully the IRS will get these database sync issues sorted out soon - this seems to be affecting a lot of people applying for CAA status right now.
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Emily Sanjay
I've been following this thread closely as I'm preparing to submit my own CAA application next month, and all of these troubleshooting tips are incredibly valuable. It's honestly appalling that the IRS hasn't addressed these systemic issues with their portal when so many qualified practitioners are struggling with the same technical problems. Based on everything shared here, I'm going to create a pre-submission checklist: find my ACN email (and move it out of spam), use Edge browser, upload during off-peak hours (early morning), save documents as "Print to PDF" at 150 DPI or lower, use the LastName_FirstName_DocumentType_mmddyyyy.pdf naming convention, clear browser cache before starting, and keep files under 3MB. It's ridiculous that we need this level of technical workaround knowledge just to submit a professional certification application, but I really appreciate everyone sharing their hard-earned solutions. This community support is more helpful than any official IRS documentation I've found. For those still struggling, you might also want to document your technical issues and submit complaints to the Treasury Inspector General for Tax Administration (TIGTA). If enough practitioners report these portal problems, maybe we can get some official attention on fixing these systemic issues that are clearly affecting the entire CAA program.
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Mei Wong
This is such a comprehensive checklist - thank you for putting this together! As someone who just went through this nightmare process, I can confirm that having all these workarounds documented in one place would have saved me weeks of frustration. Your point about contacting TIGTA is spot on. I actually submitted a complaint after my experience, and they told me they've been getting an increasing number of reports about CAA portal issues. The more practitioners who document these problems officially, the better chance we have of getting the IRS to actually prioritize fixing their broken systems. One thing I'd add to your checklist: take screenshots of any error messages you encounter, even if they're not helpful. TIGTA asked for documentation of the specific technical failures, and having those screenshots made my complaint much more credible. Also, keep a log of dates/times when you attempted submissions - they want to see patterns of system failures. It's frustrating that we have to become IT troubleshooters and government watchdogs just to practice our profession, but at least we're building a knowledge base that can help future CAA applicants avoid some of these pitfalls. Hopefully the IRS will eventually modernize their systems to work like it's actually 2025!
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Ethan Clark
This entire thread perfectly captures the CAA portal frustration so many of us are experiencing! I've been stuck at the document upload stage for over two weeks, and reading everyone's solutions has given me a clear action plan. Like several others, I found my Application Control Number email in spam with the subject "IRS CAA Application Reference Number" - the IRS email system clearly has major deliverability problems if this many practitioners are missing these critical notifications. I've been making almost every mistake mentioned here: using Chrome during peak hours, uploading 600 DPI scans, and getting nowhere with the generic error messages. Tomorrow I'm trying the community-tested approach: Edge browser at 6 AM, "Print to PDF" files at 150 DPI, proper file naming convention, and cleared browser cache. It's mind-boggling that we need a crowdsourced technical manual just to submit a basic professional application in 2025. The IRS portal infrastructure is clearly not equipped to handle the volume or complexity of modern document uploads. I'm also planning to document my experience and file a TIGTA complaint as suggested. If enough practitioners report these systemic issues, maybe we can finally get the IRS to prioritize fixing their broken systems instead of forcing qualified professionals to become IT troubleshooters just to serve taxpayers. Thanks to everyone for sharing your hard-won solutions - this community support is more valuable than any official IRS documentation!
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Sophia Miller
I'm completely new to the CAA application process and honestly feeling overwhelmed after reading about all these technical issues! I was planning to start my application next week, but now I'm wondering if I should wait until the IRS fixes these portal problems. Is there any indication from anyone who's spoken to IRS support about when these systemic issues might be resolved? Or should I just plan to follow the community workaround checklist that's been developed here? It seems like having Edge installed, knowing about the ACN email spam issue, and understanding the PDF formatting requirements are basically prerequisites at this point. As someone just starting this journey, I really appreciate everyone documenting their experiences - it's clear the official IRS guidance doesn't prepare you for any of these real-world technical hurdles. This thread is going to save me weeks of frustration!
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Nathaniel Stewart
Don't wait to start your application! The IRS hasn't given any timeline for fixing these portal issues, and from what I've seen, they've been ongoing for months. The community workaround checklist that's been developed here is actually pretty reliable once you know what to do. I'd recommend starting your application now but being prepared with all the technical solutions everyone has shared. Make sure to check your spam folder immediately after submitting the initial application to find your ACN email - that seems to be the biggest stumbling block for most people. The actual CAA certification process itself is straightforward once you get past these technical hurdles. And honestly, having this thread as a reference guide puts you at a huge advantage compared to those of us who had to figure it out through trial and error. You've got a complete playbook now! Just be patient with the upload process and follow the timing/browser recommendations. The 6 AM Edge browser approach with properly formatted PDFs seems to work consistently for most people. Good luck with your application!
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Samantha Hall
Don't wait for the IRS to fix these issues - based on what I've seen, these portal problems have been ongoing for months with no indication they're prioritizing a fix. I'd recommend going ahead with your application but being prepared with the workaround strategies everyone has shared here. The key is setting proper expectations: budget extra time for the technical hurdles, have Edge browser ready, watch for that ACN email in your spam folder, and plan to attempt uploads during off-peak hours. Following the community checklist that Emily compiled will save you most of the frustration. One tip I'd add for someone just starting: create a dedicated folder in your email for IRS communications and set up filters to make sure nothing gets lost in spam. Also, keep detailed notes of each step - if you do run into issues, having documentation will help when you need to call for support. The actual CAA requirements and review process are straightforward once you get past these portal problems. Don't let the technical issues discourage you from pursuing the certification - just be prepared to work around the IRS's outdated systems!
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Maya Lewis
Don't wait for the IRS to fix these issues - there's no timeline for when that might happen, and you'll just be delaying your certification unnecessarily. The workarounds documented in this thread definitely work, you just need to be prepared for the technical hurdles. I'd recommend starting your application soon but go in with realistic expectations and the community checklist ready. Make sure you have Edge browser installed, watch for that ACN email (and check your spam folder immediately), and plan your document uploads for early morning hours with the proper formatting everyone has outlined. The actual CAA certification process is valuable and worth pursuing - it's just the portal technology that's problematic. Once you get past the technical barriers, the application review itself is straightforward. Better to tackle it now with the collective wisdom from this thread than to wait indefinitely for IRS IT improvements that may never come!
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Dylan Mitchell
Don't wait to start your application - the portal issues are frustrating but definitely manageable with the workarounds everyone has shared here. I just successfully submitted my CAA application last week using exactly the techniques outlined in this thread. The key is going in prepared: have Edge browser ready, expect your ACN email to land in spam, and plan your uploads for early morning hours with properly formatted PDFs. While it's annoying to need all these workarounds, the actual application process moves pretty quickly once you get past the technical hurdles. From what I've heard from IRS contacts, there's no timeline for fixing these portal issues - they're aware of the problems but system updates are apparently low priority. So you're better off just working within the current broken system rather than waiting for improvements that may never come. One tip that wasn't mentioned yet: if you're starting fresh, create a dedicated folder for all your CAA documents and scan everything at the right specs from the beginning. Much easier than having to redo your scans later when you discover the portal doesn't like high-resolution files!
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Hattie Carson
Don't wait - the IRS hasn't given any timeline for fixing these issues, and you'll likely face the same problems whenever you apply. The good news is this community has basically created a foolproof workaround process! From my recent experience, if you follow the documented steps (Edge browser, early morning timing, proper PDF formatting, finding your ACN email), the process actually works. The hardest part is just knowing what to do, which this thread has solved. I'd recommend starting your application soon and bookmarking this discussion. Set up a separate email folder to catch that initial ACN email so it doesn't get lost in spam. Having gone through this recently, I'm happy to help troubleshoot if you run into specific issues following the community playbook.
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Ellie Perry
@Sophia Miller, I wouldn't wait for the IRS to fix these issues - based on what I've seen, these problems have been ongoing for months with no official acknowledgment or timeline for resolution. The community workaround strategies really do work once you know what to do. I'd recommend starting your application sooner rather than later, but definitely prepare by following the checklist that @Emily Sanjay outlined. Make sure you have Edge browser ready, watch for that ACN confirmation email and (check your spam folder immediately ,)and prepare your documents using the Print "to PDF method" at 150 DPI. The key is going into it with realistic expectations - plan for the process to take longer than it should due to technical issues, but know that the workarounds shared here will eventually get you through. I actually found it less stressful once I accepted that the portal is broken and focused on following the community-tested solutions rather than fighting the system. Also, starting earlier gives you more time to work through any issues before any deadlines you might have. The actual CAA program requirements haven t'changed - it s'just the submission technology that s'problematic.
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Makayla Shoemaker
@Sophia Miller - I wouldn t'wait for the IRS to fix these issues since there s'no indication of when or (if that) will happen. Based on what I ve'seen from government IT projects, these portal problems could persist for years. I d'recommend going ahead with your application but being prepared with the community workaround checklist. The good news is that once you know the tricks, the process is manageable - it s'just frustrating that we need workarounds at all. Here s'what I wish I had known before starting: install Edge browser ahead of time, set up email filters so the IRS confirmation doesn t'go to spam, and plan to do your uploads early morning when the system is less loaded. Also, practice the PDF formatting requirements with some test documents first so you re'not learning that under pressure. The CAA certification is still worth pursuing despite these technical headaches - just budget extra time for the portal battles! And definitely document any issues you encounter for a TIGTA complaint. The more data they have about these problems, the better chance we have of eventually getting proper fixes.
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Liam O'Reilly
Don't wait - just go ahead and start your application using all the workarounds everyone has shared here! I was in your exact position a few weeks ago, reading through similar horror stories and debating whether to postpone my application. But honestly, the IRS isn't going to fix these systemic issues anytime soon based on what I've heard from practitioners who've been dealing with this for months. Here's what I'd recommend as someone who just successfully got through the process: Start by making sure your spam filters won't catch the ACN email (maybe add irs.gov to your safe sender list), have Edge browser ready to go, and prepare your documents using the "Print to PDF" method at 150 DPI with the proper naming convention everyone mentioned. The key is going in prepared with all these community solutions rather than trying to figure it out through trial and error like most of us did. Set aside a morning when you can try the upload during off-peak hours (6-8 AM works best), and don't get discouraged if it takes a few attempts. The processing time after successful submission is still reasonable (3-4 weeks), so you're not losing time by starting now. Plus, having your CAA status sooner means you can start serving clients sooner. Just document any technical issues you encounter for potential TIGTA complaints - we need more voices highlighting how broken this system is!
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Danielle Mays
As someone who just successfully completed the CAA application process last month after dealing with many of these same issues, I'd say don't wait - just go in prepared with all the workarounds this community has shared. The IRS hasn't given any timeline for fixing these portal problems, and from what I've heard from colleagues, these issues have been ongoing for months. I'd definitely recommend following the community checklist that Emily compiled - install Edge beforehand, search for that ACN email immediately after starting your application (and check spam!), and plan to do your uploads during off-peak hours with properly formatted PDFs. The process is definitely frustrating, but once you know all the technical quirks, it's manageable. I actually got through the entire submission in one morning session after learning about the browser compatibility and timing issues. The actual review and approval process was smooth once I got past the technical hurdles. Just make sure to document any issues you encounter for TIGTA reporting - the more practitioners who formally complain about these portal problems, the better chance we have of getting them fixed for future applicants.
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Paolo Ricci
Don't wait - the IRS issues aren't going to get fixed anytime soon based on what I've seen. I'd recommend going ahead with your application but being prepared with all the workarounds this community has identified. From my conversations with IRS support, they're aware of the portal issues but there's no timeline for fixes. They're basically telling people to "try different browsers" which shows they're not taking it seriously as a systemic problem. Here's my advice as someone who just went through this: Install Edge now, set up a dedicated folder for your CAA documents, and when you start the application, immediately search for that confirmation email and move it out of spam. Save all your documents using "Print to PDF" at 150 DPI right from the start - don't wait until you hit upload problems. The good news is that once you know all these workarounds, the process is manageable. It's just frustrating that we have to be technical experts to navigate what should be a straightforward professional application. But don't let the portal issues discourage you from pursuing CAA certification - it's worth it once you get through the bureaucratic maze!
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Kaitlyn Otto
@Sophia Miller I wouldn t'wait for the IRS to fix these issues - based on everything shared here, these problems have been going on for months with no signs of resolution. The community has essentially figured out reliable workarounds, so you re'actually in a better position than those of us who had to discover these solutions through trial and error! I d'recommend going ahead with your application but being prepared with the checklist Emily put together earlier. Make sure to check your spam folder immediately after starting the application to find that ACN email, and have Edge browser ready to go. The actual application process isn t'bad once you know how to navigate around the technical pitfalls. One tip I d'add from my recent experience: create a dedicated folder in your email for CAA-related messages and set up a filter to catch anything from the IRS so future communications don t'get lost. The IRS sends several emails throughout the process and you don t'want to miss any of them in spam folders. The community knowledge here is definitely more comprehensive than anything in the official IRS documentation. Better to go in prepared with these workarounds than to wait indefinitely for system fixes that may never come!
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Yuki Kobayashi
Don't wait for the IRS to fix these issues - that could take years based on their track record! I'd recommend starting your application soon but being prepared with all the workarounds this community has identified. From what I've seen in this thread and my own experience, the portal issues aren't getting better on their own. The database sync problems, browser compatibility issues, and email deliverability problems seem to be ongoing systemic issues that require workarounds rather than waiting for fixes. My advice: Start your application but set realistic expectations. Install Edge beforehand, create a dedicated folder to save your ACN email immediately (and check spam!), prepare your documents using the "Print to PDF" method at 150 DPI with proper naming conventions, and plan to attempt uploads during off-peak hours. Having all the community-discovered solutions ready from the start will save you the weeks of trial-and-error that the rest of us went through. The CAA certification is valuable for your practice, so don't let these technical hurdles stop you - just be prepared to navigate them strategically!
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Aiden Chen
Don't wait - start your application now! The portal issues are frustrating but definitely workable with the right approach. I just successfully submitted mine last week after following the community checklist everyone has developed here. Here's my advice as someone who just went through this: install Edge beforehand, set up a dedicated folder to watch for that ACN confirmation email (and check spam immediately), and prepare your documents using the "Print to PDF" method at 150 DPI before you even start the online application. The key is going in prepared rather than discovering these workarounds after you're already stuck. I actually printed out Emily's checklist and followed it step by step - saved me from weeks of trial and error that others had to endure. From what I've heard talking to IRS support, there's no timeline for fixing these portal issues. They're aware of the problems but seem to be prioritizing other system updates. So you're probably looking at the same technical hurdles whether you apply now or wait six months. Better to get through the process with the community knowledge we have than wait for fixes that may never come!
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Aisha Khan
Don't wait for the IRS to fix their systems - that could take years! I'd recommend starting your application now and just being prepared with all the workarounds this community has identified. The good news is that once you know about these issues upfront, they're much more manageable. Here's what I'd suggest for a newcomer: Set up a dedicated folder in your email to catch the ACN confirmation (and check spam immediately after submitting), install Edge even if you hate it, prepare your documents using the "Print to PDF" method at 150 DPI, and plan to do your uploads early morning or late evening when the portal is less congested. The actual CAA certification process itself is straightforward once you get past these technical hurdles. Having this community knowledge base means you can avoid the weeks of trial-and-error that the rest of us went through. Think of it as being forewarned and forearmed! Also, the $270 fee is refundable if your application gets rejected due to technical issues (though you'd have to fight for it), so the financial risk isn't as high as it initially seems. I'd say go for it - just be mentally prepared for some technology frustration along the way.
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