How to get FICA tax refund from employer when working on F-1 student visa with CPT
Hi everyone, I'm in a bit of a sticky situation with my employer regarding tax deductions. I've been working under Curricular Practical Training (CPT) on my F-1 student visa for almost a year now, and I just recently discovered that my employer has been incorrectly deducting Medicare and Social Security taxes (FICA) from my paychecks this whole time. When I brought this to their attention last month, they acknowledged the mistake and fixed it going forward - so my recent paychecks no longer have these FICA deductions. That's great, but what about all the money they incorrectly took out over the past 10 months? I reached out to the payroll department about getting those previous deductions refunded, but they responded saying they "can't back date a tax change." This doesn't sound right to me since it was their error. Does anyone know if they're obligated to refund these incorrect FICA tax deductions? And if so, what's the process for them to correct this mistake? I'm talking about roughly $2,300 that was incorrectly deducted, which is a significant amount for a student.
31 comments


Amina Bah
This is unfortunately a common problem for international students on F-1 visas with CPT authorization. Your employer is incorrect - they absolutely can and should refund the incorrectly withheld FICA taxes. Students on F-1 visas with CPT are exempt from paying FICA taxes (Social Security and Medicare) as long as you're considered a non-resident alien for tax purposes. Your employer needs to correct this by filing adjusted quarterly tax returns (Form 941-X) for the quarters in which they incorrectly withheld these taxes. The process involves them adjusting their employer tax filings and then reimbursing you for the incorrectly withheld amounts. This is a standard procedure that payroll departments should know how to handle. Sometimes they're reluctant because it creates extra work, but it's their legal obligation to correct tax withholding errors.
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Oliver Becker
•Do they have a time limit to make these adjustments? Like if they've been taking out FICA incorrectly for years, can you still get all of that money back?
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Paolo Longo
•Thank you for this clear explanation! So if I understand correctly, they need to file Form 941-X to adjust their quarterly tax returns. Is this something I should specifically request from them using these terms? I feel like the payroll person I'm dealing with might not be fully informed about the correct procedure. Also, do you know if there's a time limit for them to make these corrections? I've been at this job for about 10 months with incorrect withholding.
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Amina Bah
•For the time limit question, employers generally have up to 3 years from the date the original return was filed or 2 years from when the tax was paid (whichever is later) to make corrections using Form 941-X. So for recent withholding like yours, you're well within the timeframe. Yes, I would recommend specifically mentioning Form 941-X in your communication with payroll. Sometimes using the correct terminology helps them realize you know your rights. Also mention IRS Publication 519 (U.S. Tax Guide for Aliens), which clearly states the FICA exemption for F-1 students with CPT. You might also want to contact your university's international student office as they often have resources to help with these situations.
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CosmicCowboy
After dealing with a similar situation last year (H-1B visa but was incorrectly classified), I discovered taxr.ai (https://taxr.ai) which really helped me sort out the mess with my employer's payroll department. Their system analyzed my pay stubs and tax documents, then generated a detailed report explaining exactly which taxes I should and shouldn't be paying based on my visa status. Having that official-looking document made all the difference when I went back to HR - suddenly they took me seriously! The report outlined the specific IRS regulations that applied to my situation and even referenced the exact forms they needed to file to fix the problem. Within a few weeks, I received a refund for all the incorrectly withheld taxes.
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Natasha Orlova
•Wait this sounds amazing! Does it work for all visa types? I'm on J-1 and think my employer might be withholding incorrectly too but didn't want to cause trouble without being 100% sure.
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Javier Cruz
•I'm a bit skeptical... how much does this service cost? Seems like you could just print out the IRS publications yourself and highlight the relevant sections.
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CosmicCowboy
•It definitely works for J-1 visas too! The system has specific modules for different visa categories including F-1, J-1, H-1B, and others. It helped identify exactly which tax treaties applied to my situation, which was something I couldn't easily figure out on my own. As for the cost question, I found it was worth it for the time saved and confidence it gave me. The report looks professional and cites all relevant tax codes, which makes HR departments take you more seriously than if you just printed IRS publications. Plus they helped me understand how to explain the situation to payroll in non-confrontational terms that got results.
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Natasha Orlova
Just wanted to update - I used taxr.ai after seeing the recommendation here and WOW, what a difference! As a J-1 visa holder, I'd been confused about my tax situation for months. The detailed report they generated showed that my employer had been incorrectly withholding state taxes despite my country having a tax treaty with the US. I brought the report to my HR department and they immediately acknowledged the issue. The best part was I didn't have to figure out all the technical details myself - the report explained exactly which forms needed to be filed and even included references to the specific tax treaty articles that applied to my situation. Got a refund of $1,850 last week! Seriously, this saved me so much stress and confusion.
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Emma Thompson
If your employer is stonewalling you about the FICA refund, you might need to get someone higher up at the IRS involved. I had a similar issue and spent WEEKS trying to get through to the IRS on my own with no luck. Then I found Claimyr (https://claimyr.com) - their service got me connected to an actual IRS agent in under 15 minutes when I had been trying for days! Check out how it works here: https://youtu.be/_kiP6q8DX5c - basically they navigate the phone tree and wait on hold for you, then call you when an actual human at the IRS is on the line. The IRS agent I spoke with confirmed my employer's obligation to refund incorrectly withheld FICA taxes and even sent me documentation I could show my employer.
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Malik Jackson
•How does this actually work? Does it just keep calling the IRS for you? I'm confused how they get through when nobody else can.
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Javier Cruz
•Yeah right, nobody gets through to the IRS that fast. I've spent literal hours on hold before being disconnected. If this actually worked, everyone would be using it.
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Emma Thompson
•It uses an automated system that continuously redials and navigates the IRS phone tree until it finds an available agent. Much more efficient than a human trying to call repeatedly. When it gets through, it keeps the line open and calls you to connect. It's not magic - just smart automation that saves you from having to sit on hold yourself. The reason everyone doesn't use it is simply because many people don't know about it yet. But it's gaining popularity quickly, especially during tax season when IRS wait times are ridiculous. I was skeptical at first too, but it literally saved me hours of frustration.
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Javier Cruz
I have to eat my words and apologize for being so skeptical about Claimyr. After commenting here, I decided to try it myself since I've been trying to reach the IRS about a missing refund for WEEKS with no success. To my complete shock, I got connected to an actual IRS representative in about 27 minutes (without having to sit on hold myself). The agent was able to confirm my refund status and explain the delay. For someone who has spent countless hours listening to that awful hold music only to get disconnected, this was literally life-changing. For the OP's FICA tax issue, having direct confirmation from the IRS about your employer's obligations would be really helpful. When I mentioned the F-1 CPT exemption issue to the agent, they confirmed employers are absolutely required to refund incorrectly withheld FICA taxes and suggested getting something in writing from the IRS to present to the employer.
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Isabella Costa
One option you haven't explored yet is filing Form 843 (Claim for Refund and Request for Abatement) directly with the IRS yourself. If your employer continues to refuse to correct their mistake, you can file this form along with supporting documentation (your pay stubs, CPT authorization, etc.) to request a refund of the incorrectly withheld Social Security and Medicare taxes. Make sure to include a statement from your employer showing they won't refund the taxes and won't file Form 941-X. Also attach a copy of your I-94, I-20 with CPT authorization, and evidence of your F-1 status. This is more work for you, but it's a viable backup plan if your employer won't cooperate.
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Paolo Longo
•That's really helpful to know there's a backup option! Do you know roughly how long the IRS takes to process Form 843 refund requests? And would I need to wait until after I file my annual tax return to do this?
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Isabella Costa
•The IRS typically takes about 8-16 weeks to process Form 843 claims, though it could be longer during busy periods. You don't have to wait until after filing your annual tax return - you can submit this form anytime you discover incorrectly withheld taxes. However, the IRS strongly prefers that your employer correct the error through Form 941-X since that's the proper procedure. Form 843 should be used as a last resort when your employer refuses to cooperate. Be sure to document all your attempts to have your employer correct the issue - save emails and other communications as evidence to include with your Form 843 submission.
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StarSurfer
Just a heads up that you should check with your international student office at your university. Many universities have tax specialists who help international students with exactly these kinds of issues. When I had a similar problem, our ISO even contacted my employer directly to explain the tax exemptions for F-1 students. They might have template letters specifically addressing FICA exemptions that you can use, which sometimes carry more weight than just you asking on your own. Plus, they've probably dealt with dozens of similar cases and know exactly what language works best with reluctant employers.
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Ravi Malhotra
•This is 100% the best advice here. My university's ISO had a direct line to a tax specialist who helped several students in my program with identical issues. They knew exactly which forms to file and how to approach HR departments that were being difficult.
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Nia Thompson
I went through this exact same situation last year with my F-1 CPT status! Your employer is definitely wrong about not being able to "back date a tax change" - this isn't about changing tax policy, it's about correcting an error they made. Here's what worked for me: I documented everything in writing (emails to payroll, their responses, copies of my pay stubs showing the incorrect FICA withholding). Then I escalated to their HR manager with a formal written request citing IRS Publication 519 and explicitly mentioning that they need to file Form 941-X to correct the error. The key phrase I used was "incorrect tax withholding correction" rather than asking them to "refund" money - it frames it as fixing their mistake rather than doing you a favor. I also mentioned that the IRS requires employers to correct withholding errors when they're made aware of them. It took about 6 weeks total, but I got back $1,847 in incorrectly withheld FICA taxes. Don't let them brush you off - $2,300 is a lot of money and you're legally entitled to it!
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Liam McGuire
•This is such valuable firsthand experience, thank you for sharing! I love the framing of "incorrect tax withholding correction" - that's much more diplomatic than demanding a refund. Your approach of escalating to HR management with proper documentation and citing specific IRS publications sounds like exactly what I need to do. Did you have to follow up multiple times during those 6 weeks, or did they handle it once you got to the HR manager level? I'm wondering if I should give my current payroll contact one more chance with this new approach before escalating, or if I should go straight to HR management since they've already brushed me off once.
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Jacob Smithson
•I had to follow up twice during those 6 weeks - once after about 3 weeks to check on progress, and then again at 5 weeks when they said they were "still processing." Each time I kept it professional and just asked for a status update on the "incorrect tax withholding correction." Given that your payroll contact already dismissed you once, I'd recommend going straight to HR management with the proper documentation and terminology. When payroll departments don't understand the process, they often just say "no" to avoid extra work. HR managers typically have more authority and understanding of legal compliance issues. Make sure to include in your written request that you've already brought this to payroll's attention and they indicated they "can't back date a tax change" - this shows HR that their payroll team needs guidance on proper procedures for correcting withholding errors.
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Emma Swift
As someone who works in payroll compliance, I can confirm that your employer absolutely has the obligation to correct this error. What they told you about not being able to "back date a tax change" is completely incorrect - this isn't about changing tax policy retroactively, it's about correcting an improper withholding that should never have happened in the first place. F-1 students on CPT are explicitly exempt from FICA taxes under IRS regulations, and when an employer discovers they've been withholding these taxes incorrectly, they're required by law to make corrections. The proper procedure is exactly what others have mentioned - filing Form 941-X (Adjusted Employer's Quarterly Federal Tax Return) for each quarter where the error occurred. I'd strongly recommend putting your request in writing and specifically mentioning Form 941-X and IRS Publication 519. Also cite Treasury Regulation 31.3121(b)(19)-1(b)(8) which explicitly states the FICA exemption for F-1 students. Using the correct legal references often helps payroll departments realize this is a compliance issue, not a discretionary favor. If they continue to resist, escalate to HR leadership or consider having your university's international student office contact them directly. $2,300 is a substantial amount, and you have every right to have this error corrected.
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Ellie Perry
•This is incredibly helpful - thank you for providing the specific Treasury Regulation reference! Having that exact citation (31.3121(b)(19)-1(b)(8)) along with Form 941-X and IRS Publication 519 should give me all the ammunition I need when I escalate this to HR management. It's reassuring to hear from someone who actually works in payroll compliance that this is a clear-cut legal obligation, not a discretionary decision. The distinction you made about correcting an improper withholding versus "back dating a tax change" really clarifies why their reasoning was flawed. I'm going to draft a formal written request using all these references and send it directly to HR leadership. If that doesn't work, I'll definitely reach out to my university's international student office for additional support. Thanks for taking the time to explain the compliance perspective!
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Rachel Tao
I'm dealing with a very similar situation right now - also F-1 with CPT and my employer has been deducting FICA taxes for the past 8 months. Reading through all these responses has been incredibly helpful, especially the specific forms and regulations mentioned. I'm curious about one thing though - for those who successfully got their refunds, did your employers also have to pay penalties to the IRS for the incorrect withholding? I'm wondering if that's why some payroll departments are reluctant to fix these errors - they might be worried about additional costs beyond just refunding the employee. Also, has anyone tried working directly with their company's external payroll service (like ADP or Paychex) rather than internal HR? My company uses an outside service and I'm wondering if going directly to them might be more effective since they should be experts on tax compliance. The advice about framing it as "incorrect tax withholding correction" rather than a refund request is brilliant - I'm definitely going to use that approach when I escalate to my HR director next week.
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Daniel Rivera
•Great questions! From what I've seen in similar cases, employers typically don't face penalties for correcting FICA withholding errors on F-1 students as long as they file the amended returns (Form 941-X) promptly once they become aware of the mistake. The IRS generally views this as good faith compliance rather than willful non-compliance, especially since the regulations around international student tax exemptions can be complex. Regarding external payroll services - that's actually a really smart approach! Companies like ADP and Paychex deal with these international student tax issues regularly and their specialists are usually much more knowledgeable about the specific exemptions than internal HR staff. I'd recommend calling their support line directly and explaining the situation. They often have dedicated teams for compliance issues and can walk your employer through the correction process. You might want to mention to your HR director that using their payroll service's expertise for this correction would ensure it's handled properly and reduce any compliance risk for the company. Framing it as protecting the company from potential issues (rather than just getting your money back) sometimes gets better results from management.
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Finnegan Gunn
I just wanted to add another perspective to this discussion - if you're still having trouble getting your employer to cooperate, you might also want to document the financial impact this has had on you as an F-1 student. When I was dealing with a similar FICA withholding issue, I calculated not just the $2,100 that was incorrectly taken from my paychecks, but also the opportunity cost of that money (like interest I could have earned, or how it affected my ability to pay for textbooks and living expenses). I included this in my formal request to HR, emphasizing that as an international student with limited income sources, these incorrect deductions created genuine financial hardship. Sometimes framing it in terms of the real-world impact on your education and living situation helps HR understand the urgency beyond just the technical compliance issues. They realized that holding onto money that was never legally theirs in the first place was causing actual harm to a student's academic experience. Also, don't forget to keep detailed records of all your communications about this issue - dates, names of people you spoke with, and their responses. If you do end up having to file Form 843 directly with the IRS, having a clear timeline of your attempts to resolve this with your employer will strengthen your case significantly. Good luck with getting this resolved! The combination of proper legal citations, escalation to the right people, and clear documentation of the impact should get you that $2,300 back.
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Zainab Omar
•This is such a comprehensive approach! I hadn't thought about documenting the broader financial impact, but you're absolutely right - as students, that incorrectly withheld money often goes toward essential expenses like rent, groceries, and textbooks. The opportunity cost angle is particularly smart. Even just putting that money in a high-yield savings account would have earned interest over those 10+ months. And for international students who can't easily get credit cards or loans, having cash flow disrupted by incorrect withholding can force difficult choices between academic materials and basic living expenses. I'm definitely going to include a brief section about financial impact in my formal HR request, along with all the regulatory citations others have mentioned. Having both the legal compliance argument AND the human impact story should make it much harder for them to dismiss or delay the correction. Thanks for the reminder about documentation too - I've been keeping screenshots of all my email exchanges, but I should also create a simple timeline document that shows exactly when I discovered the error, when I first contacted payroll, their response, etc. That kind of organized record-keeping will be invaluable if this escalates further.
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Cynthia Love
I went through almost the exact same situation about two years ago - F-1 student with CPT, employer incorrectly withholding FICA taxes for nearly a year, and payroll initially refusing to fix it. The advice here is spot-on, but I wanted to add one more strategy that really helped me get results. After escalating to HR with all the proper documentation (Form 941-X references, IRS Publication 519, Treasury Regulation citations), I also requested a meeting with both HR and a representative from their legal/compliance team. I framed it as wanting to ensure the company was fully compliant with IRS regulations regarding international employees. During that meeting, I presented a one-page summary showing: 1. The specific IRS regulations requiring FICA exemption for F-1 CPT students 2. The company's legal obligation to correct withholding errors once discovered 3. The potential compliance risks of not correcting known errors 4. The straightforward solution (Form 941-X filings) Having their legal team in the room made all the difference - they immediately understood the compliance implications and directed payroll to process the corrections within two weeks. I think sometimes payroll departments don't realize that refusing to correct known tax errors could expose the company to regulatory scrutiny. The total process took about a month from escalation to receiving my $1,950 refund, but having that legal/compliance perspective really accelerated things. If your company has a legal department or compliance officer, definitely try to get them involved in the conversation.
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Zoe Stavros
•This is brilliant advice about involving the legal/compliance team! I never would have thought to frame it as a compliance risk discussion rather than just a payroll correction request. Getting them to see it from a regulatory liability perspective rather than just "employee wants money back" probably makes them take it much more seriously. The one-page summary format you described sounds perfect - concise, professional, and focused on the company's obligations rather than just the employee's rights. I'm definitely going to adapt this approach when I escalate to HR next week. Do you remember if you included any specific language about potential IRS scrutiny, or did you keep it more general about "compliance risks"? Also, did you find it helpful to suggest the meeting format upfront, or did you start with a written request and then ask for a meeting if they seemed hesitant? I'm trying to figure out the best sequence for escalation that shows I'm serious but not unnecessarily confrontational. Thanks for sharing such a detailed and successful strategy - it's reassuring to know that persistence with the right approach really does work for these situations!
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Dylan Baskin
•I kept the compliance language fairly general - something like "ensuring full compliance with IRS regulations for international employee taxation" and "addressing potential regulatory concerns regarding known withholding errors." I found that being too specific about penalties or scrutiny could come across as threatening, which might make them defensive rather than cooperative. For the sequence, I actually started with a formal written request to HR that included a line like "I would welcome the opportunity to discuss this compliance matter with the appropriate team to ensure a prompt resolution." This let them know I was open to a meeting while still documenting everything in writing first. When they responded (somewhat reluctantly), I then suggested including their compliance/legal team "to ensure we're addressing all regulatory requirements properly." The key was positioning myself as helping them stay compliant rather than challenging them. I even said something like "I want to make sure we handle this correctly to protect the company from any potential issues with the IRS." It's amazing how much more receptive people become when you frame it as being on the same team working toward proper compliance rather than adversaries fighting over money. One more tip - I brought printed copies of all the relevant IRS publications and regulations to the meeting, already highlighted and tabbed. Being that prepared really reinforced that this was a serious compliance matter, not just a casual request.
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