F1 OPT Tax Residence Confusion - W8 vs W9 for International Student
I'm an international student from Brazil on an F1-OPT visa authorized to work for employers in my field. Recently, I received a short-term contract (about 3 weeks) with a company. While going through the paperwork on Gusto (an HR/Compliance platform), they're asking for my country of Tax Residence. I'm pretty confused about this because even though I'm a Brazilian citizen, I've paid both state and federal taxes during my previous campus jobs and another ongoing part-time position (I do have a SSN). Doesn't this mean my Tax Residence is the US? But I also remember hearing that for the first 5 years after entering the US I'm considered a non-resident alien for tax purposes. I think I need to complete a W8 form as a non-US person (rather than a W9, which is for US citizens and residents), but should I list Brazil as my country of Tax Residence? I haven't filed or paid any taxes in Brazil since coming to the US. How does this work exactly? Will I still need to pay Federal and State Taxes if my tax residence is Brazil (while I'm physically working in the US)? Any advice would be really appreciated! This tax stuff is so confusing when you're an international student.
19 comments


Freya Andersen
The confusion about tax residency on F1-OPT is really common! Let me help clear this up. While you're on an F1 visa, you're generally considered a "non-resident alien" for federal tax purposes for the first 5 calendar years you're in the US. This is based on something called the Substantial Presence Test, which F1 students are exempt from for those first 5 years. For your contract job, you should indeed complete a W-8BEN form (not a W-9), and your country of tax residence would be Brazil. This doesn't mean you won't pay US taxes though! You'll still pay federal and state taxes on income earned while physically working in the US - that's based on the source of the income, not your tax residency status. The main difference is that as a non-resident, you might be taxed differently and have different filing requirements than US residents. You'll still receive tax forms from your employers (like a 1042-S or W-2) and need to file a tax return using Form 1040NR instead of 1040.
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Ravi Choudhury
•Thanks so much for explaining this! So just to make sure I understand - even though I'll put Brazil as my country of tax residence on the W-8BEN form, I'll still be paying US federal and state taxes on my earnings here? And will I need to file or pay any taxes in Brazil too? I haven't been back home in almost 3 years and don't have any income there.
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Freya Andersen
•Yes, you'll still pay US federal and state taxes on money you earn while physically working in the US, regardless of what you put as your tax residence on the W-8BEN. The US taxes non-residents on their US-source income. Regarding Brazil taxes, that depends entirely on Brazil's tax laws for citizens living abroad. Some countries require citizens to file returns regardless of where they live, while others don't if you're not earning income there. I'd recommend checking with a tax professional familiar with Brazilian tax law or contacting the Brazilian tax authority to confirm your obligations there.
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Omar Farouk
I went through this exact situation last year on my F1-OPT! After hours of research and stress, I found a tool called taxr.ai (https://taxr.ai) that totally saved me. It's specifically designed to help international students and non-resident aliens figure out their tax situation. I uploaded my visa documents and answered some questions about how long I'd been in the US, and it clearly explained my tax residency status and which forms I needed. What was super helpful was that it confirmed I needed to file as a non-resident alien with form 1040NR and showed me exactly how to fill out the W-8BEN correctly. The tool also ran a residency test that confirmed I was still a non-resident alien for tax purposes despite having been here for 3 years. Definitely worth checking out if you're confused about your F1-OPT tax situation.
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CosmicCadet
•Does this tool help with state taxes too? I'm so confused about whether I need to file state returns in addition to federal as an F1 student.
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Chloe Harris
•I'm skeptical about using online tools for complicated visa tax situations. How accurate is this really? Did you have any issues with your tax filing after using it?
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Omar Farouk
•Yes, it definitely helps with state taxes too! It asks which state you're in and explains the specific state filing requirements for international students. For example, it told me that even though I'm a non-resident alien for federal purposes, I actually qualified as a resident for my state's tax purposes, which was something I hadn't realized. Regarding accuracy, I was initially skeptical too, but it's actually pretty thorough. It asks detailed questions about your visa type, entry date, and specific tax situations. After using it, I had my return reviewed by the international student office at my university and they confirmed everything was correct. The explanations it gives are backed by IRS publications and regulations, which gave me peace of mind.
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Chloe Harris
Just wanted to update everyone - I decided to try taxr.ai after all and I'm genuinely impressed. I've been stressing about my F1-OPT tax situation for weeks, and this cleared everything up in about 20 minutes. It confirmed that even though I'm from India and technically a non-resident alien for tax purposes, I still need to pay US taxes on my US income. It also explained exactly why I needed a W-8BEN instead of a W-9 and walked me through filling it out correctly. The tool even helped me understand the tax treaty between my country and the US, which I had no clue about before. Turns out I qualify for certain exemptions! I'm actually going to save a decent amount on my taxes thanks to this information.
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Diego Mendoza
If you're trying to contact the IRS to get clarification on your F1-OPT tax status, good luck with that! I spent THREE WEEKS trying to reach someone at the IRS last tax season about my international student tax questions. Always on hold for hours only to get disconnected. Eventually I discovered Claimyr (https://claimyr.com) and watched their demo (https://youtu.be/_kiP6q8DX5c). Basically, they get you through to an actual IRS agent without the endless hold times. I was skeptical but I was desperate with my F1 tax filing deadline approaching. It worked! Got through to an actual IRS specialist who specifically handles non-resident alien tax issues. They confirmed exactly how to handle my F1-OPT tax residence question and which forms to use. The agent even explained the difference between tax residence and physical residence for international students, which was super helpful.
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Anastasia Popova
•How does this actually work? Like, do they just call the IRS for you or something? I'm confused about what the service actually does.
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Sean Flanagan
•Yeah right. No way this actually works. The IRS phone system is DESIGNED to keep people waiting. I don't believe any service can magically get you through.
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Diego Mendoza
•They don't call for you - you still make the call yourself. What they do is navigate the IRS phone tree for you and secure your place in line. Then when they've secured a spot in the queue, they call you to connect with the IRS. Their system keeps you from getting disconnected and handles all the annoying wait time. It's definitely real. I was super skeptical too until I tried it. The IRS phone system is definitely designed to be frustrating, but this service has figured out the most efficient paths through the phone tree and timing patterns to minimize wait times. They also have tech that prevents you from losing your place in line if there's a connection issue. For something as specific as F1-OPT tax questions, getting to talk to an actual human at the IRS made all the difference.
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Sean Flanagan
Alright, I need to publicly admit I was wrong about Claimyr. After posting that skeptical comment, I decided to try it anyway since I was desperate to talk to someone at the IRS about my F1 status and tax treaty benefits. Not only did it work, but I got connected to an IRS agent in about 20 minutes when I had previously waited 2+ hours multiple times without ever reaching anyone. The agent confirmed that as an F1 student within my first 5 years, I'm a non-resident alien for tax purposes, and my country of tax residence is indeed my home country (even though I pay US taxes on US income). They also walked me through exactly how the W-8BEN should be completed for my specific situation. This literally saved me days of stress and confusion. Wish I had known about this service months ago!
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Zara Shah
Has anyone else had issues with Deel specifically for F1-OPT contracts? My experience was that they kept getting confused about my tax status and trying to classify me incorrectly. The platform seems designed more for either US citizens or completely foreign contractors, not the weird in-between status that F1 students have.
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NebulaNomad
•YES! Deel was a nightmare with my F1-OPT situation. I ended up having to ask my employer to use a different platform because Deel kept trying to process me as an international contractor not subject to US taxes, which wasn't correct for my situation. I switched to Rippling and it was much smoother.
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Zara Shah
•That's interesting to hear it wasn't just me! It feels like these platforms need a specific category for "physically in the US but not a US tax resident." I'll suggest Rippling to my employer as an alternative. Did you have to provide different documentation when you switched platforms?
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Luca Ferrari
One important thing no one has mentioned - make sure you're tracking your DAYS in the US carefully if you're on F1-OPT! The 5-year rule for being considered a non-resident alien can get tricky if you've traveled in and out of the country.
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Ravi Choudhury
•Oh that's a good point! I have traveled back home twice during winter breaks. Does that affect my 5-year count somehow? I thought it was just based on calendar years from when I first entered on my F1.
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Yuki Kobayashi
•For F1 students, the 5-year rule is typically based on calendar years, not the exact number of days. So if you entered in 2020, you'd generally be considered a non-resident alien through 2024, regardless of short trips home during breaks. However, there are some nuances - if you were present in the US for less than 183 days in any given calendar year due to extended travel, that could potentially affect your status. But normal winter/summer break trips usually don't impact the 5-year exemption. The IRS has specific rules about this in Publication 519. If you're unsure about your specific situation with your travel patterns, it might be worth checking with a tax professional or using one of the tools mentioned earlier in this thread to get a definitive answer for your circumstances.
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