This has been an incredibly informative thread! I'm in a somewhat similar situation as a dual US/Canadian citizen considering a move to Spain, and reading through all these responses has really highlighted how complex international tax planning can be. One aspect I haven't seen mentioned yet is the potential impact on your US Social Security benefits. If you become a Spanish tax resident, you'll need to understand how Spain taxes US Social Security payments (they're generally taxable in Spain) and whether you can claim treaty benefits. This becomes especially important if you're planning to retire in Spain eventually. Also, don't forget about state-level considerations beyond just establishing non-residency. Some US states have "throwback" rules for trust income or other complex provisions that could affect you even after you move abroad. Since you mentioned you're currently in Texas, you're probably in good shape, but it's worth confirming with a professional. The banking advice about opening accounts before you move is spot-on. I'd also suggest researching Spanish mortgage rules if you ever plan to buy property there. Spanish banks often have very different lending criteria for foreign income, and your US employment situation might not qualify for traditional Spanish mortgages. Has anyone dealt with Spanish tax treatment of US stock options or RSUs? With tech companies often using equity compensation, this could be another complication for the original poster's situation. This thread really demonstrates why international tax planning requires specialized expertise - there are so many interconnected issues that most general tax preparers wouldn't even know to ask about!

This thread has been absolutely invaluable! I'm facing a similar situation but with a twist - I'm a dual US/Spanish citizen working remotely for a Silicon Valley startup, and I'm planning to move to Madrid (not Catalunya) to care for elderly parents. Reading through all these responses, I'm realizing I need to factor in Madrid's wealth tax exemption that was mentioned versus Catalunya's higher rates. Since I have significant equity in my startup that could vest while I'm in Spain, the timing considerations around RSUs that @Isaiah Sanders mentioned are particularly relevant to my situation. One question that came up for me: does anyone know how Spain treats startup equity that might be worthless on paper but could potentially have future value? I'm worried about being taxed on phantom income if my options vest while I'm a Spanish resident but the company isn't publicly traded yet. Also, the Social Security discussion made me think - what about Medicare eligibility? If I become a Spanish tax resident but maintain US citizenship, do I risk losing future Medicare benefits, or does the totalization agreement cover this? The banking and mortgage insights are super helpful since I'm eventually hoping to buy property in Madrid to house my parents. It sounds like I should definitely start that banking relationship before I move. Thank you all for sharing such detailed experiences - this is exactly the kind of real-world insight you can't get from generic tax guides!

Don't mail your payment with your return! File the return but pay online through IRS Direct Pay. I learned this the hard way with a late 2019 return - mailed check got separated from my return and I got hit with even more penalties while they sorted it out.

Just want to add my experience here - I was in almost the exact same situation with a missed 2020 return that I finally filed last year. The penalties were brutal (about 40% of what I originally owed), but here's what I wish I had known: 1. File the return ASAP even if you can't pay everything right away. The failure-to-file penalty is much worse than failure-to-pay. 2. When you get the penalty notice from the IRS, immediately request a payment plan if you need it. The online application is pretty straightforward and stops additional failure-to-pay penalties from accruing. 3. Keep detailed records of everything - when you filed, when you paid, confirmation numbers, etc. The IRS systems aren't perfect and you'll want proof if there are any discrepancies later. The anxiety of not knowing what you'll owe is the worst part, but once you get through it, it's such a relief to have it behind you. You're doing the right thing by being proactive about it!

I went through almost the exact same situation last year with my LLC that had zero income but startup expenses. Here's what I learned the hard way - you definitely need to amend your return to include the K1, even with zero income. The IRS automated matching system will flag the discrepancy once they receive your business return with the K1. I tried to "wait and see" and ended up getting a CP2000 notice months later asking me to explain the missing K1. Even though it didn't change my tax liability, I had to spend time responding to the notice and dealing with the paperwork. The good news is that those startup expenses on your S-corp K1 will likely be deductible against your other income on your personal return. In my case, I actually ended up getting a small refund from the amendment because the business expenses reduced my overall tax liability. File the amendment sooner rather than later - it shows good faith effort to correct the error, and you'll avoid the potential hassle of dealing with IRS notices down the road. The 1040-X form isn't too complicated, especially if you use tax software that has an amendment feature.

I'm dealing with a very similar situation right now - LLC taxed as S-corp, zero income but had some business expenses in 2024. Reading through everyone's responses here has been incredibly helpful, especially hearing from people who actually went through this exact scenario. It sounds like the consensus is pretty clear that I should amend to include the K1, even though it feels unnecessary since there was no income. The point about the IRS automated matching system flagging discrepancies really resonates - I definitely don't want to deal with CP2000 notices months down the line when I could just fix this proactively now. The fact that the startup expenses might actually result in a refund is honestly something I hadn't even considered. I was so focused on thinking "zero income = no impact" that I completely overlooked how those business expenses could offset other income on our joint return. Thanks to everyone who shared their experiences, especially those who mentioned the tools and services that helped them navigate this. It's reassuring to know there are resources available when dealing with these complex situations. I think I'm going to move forward with filing the amendment and including the K1 properly this time.

Don't quit! It DOES get easier after the first year with self-employment income, I promise. The first year I nearly had a breakdown doing my Schedule C. Now in year 3, it takes me maybe an hour to update everything. Keep good records throughout the year and create a system for tracking expenses (I use a separate credit card for ALL business purchases which makes it super simple).

I totally understand your frustration! I went through the exact same thing two years ago when I started freelancing while keeping my day job. The transition from simple W-2 filing to dealing with Schedule C and self-employment taxes is brutal. Here's what helped me: First, don't beat yourself up about the quarterly payments - lots of people miss this their first year. The penalty usually isn't as scary as it seems, especially for first-timers. Second, at your income level, investing in a tax professional for this year might actually pay for itself through deductions you'd miss and proper setup for next year. If you do decide to stick with self-prep, focus on getting organized NOW for next year. Set up a separate business checking account, track expenses monthly (not at tax time), and set aside 25-30% of freelance income for taxes. The peace of mind is worth it. You've got this! The learning curve is steep but once you understand the system, it becomes much more manageable.

Hey Isabella! Congratulations on your upcoming August wedding! 🎉 As a tax professional, I can confirm that everyone here has given you solid advice. You're absolutely right that being married on December 31st means you're considered married for the entire tax year - so your August 15th wedding date means you'll file as married for all of 2025. The great news is that with your combined income of $161k, you're nowhere near the marriage penalty threshold (which typically kicks in around $600k+). You'll almost certainly see a marriage bonus by filing jointly! Here's my step-by-step recommendation: 1. Enjoy your wedding first - don't stress about this beforehand! 2. Within 30 days after the wedding, both update your W-4s with HR 3. Use the IRS Withholding Calculator online to get exact numbers 4. Consider having the higher earner (your fiancée) file as "Married filing jointly" and you file as "Married but withhold at higher single rate" for more accurate withholding One often-overlooked tip: if either of you gets a bonus or commission later in the year, make sure your payroll department withholds at the married rate for those payments too, not the single rate. You're being very smart to plan ahead, but remember - even if your withholding isn't perfect, you can always make a small estimated payment in January. The IRS safe harbor rules protect you from penalties as long as you pay at least 100% of last year's total tax liability. Don't let tax anxiety overshadow your wedding joy - you've got this! 💕

Hey Isabella! Congratulations on your upcoming wedding! 🎉 I just wanted to add one more consideration that hasn't been mentioned yet - if either of you has a Flexible Spending Account (FSA) or Health Savings Account (HSA) through your employers, getting married might affect your contribution limits and election changes. For HSAs specifically, if you both currently have individual HDHP coverage and HSAs, you'll need to decide whether to continue with separate accounts or transition to family coverage after marriage. The 2025 HSA contribution limit is $4,300 for individuals but $8,550 for family coverage - so if you move to family coverage, you could potentially contribute more combined than you do now as individuals. For FSAs, marriage is typically a "qualifying life event" that allows you to make mid-year election changes, so you might be able to adjust your healthcare or dependent care FSA contributions after the wedding if that makes sense for your new household situation. Just another thing to add to your post-wedding financial checklist along with updating those W-4s! But like everyone else has said, don't stress about getting every detail perfect immediately. You can always make adjustments as you learn more about your combined financial picture. Wishing you both a wonderful wedding and a smooth transition to married filing! ✨