This entire thread has been incredibly valuable! As someone who's been dealing with Form 5471 filings for the past few years, I want to add one more critical point that I don't see mentioned yet. Be very careful about the "constructive dividend" rules that can apply when you have inter-company transactions between your US and foreign entities. If the IRS determines that services, loans, or other transactions between the entities weren't conducted at arm's length pricing, they can treat the difference as a constructive dividend to the US shareholder. This is especially important for tech companies where you might be sharing intellectual property, providing management services, or making loans between entities. The transfer pricing documentation that Paolo mentioned isn't just good practice - it's essential protection against these constructive dividend adjustments. Also, for those mentioning the various tools and services to help with compliance, I'd add that while these can be helpful for understanding requirements, nothing replaces having a qualified international tax CPA review your specific situation. The penalties are too severe and the rules too complex to rely solely on automated tools, especially in your first few years of filing. One last tip: if you're in a situation where you realize you should have been filing Form 5471 in prior years but didn't, there are voluntary disclosure programs that can help minimize penalties. Don't just ignore it hoping the IRS won't notice - international information returns are increasingly scrutinized.

This has been an absolutely fantastic thread! As someone who just went through my first Form 5471 filing last month, I wish I had found this discussion earlier. I want to add one more practical tip that helped me tremendously: create a detailed timeline document that tracks all ownership changes, control periods, and key dates for both your US and foreign entities. This becomes invaluable when you're trying to determine which categories apply in each tax year, especially if you have multiple ownership changes or corporate restructuring events. For example, we had a situation where we initially formed our foreign subsidiary in July, but didn't transfer certain assets until September, and then had a small equity round in December that slightly changed ownership percentages. Having a clear timeline helped our CPA quickly determine that we were Category 3 for the acquisition, Category 4 for control, and Category 5 for CFC status, but the effective dates were different for each category. Also, echoing what others have said about record keeping - I started using a shared folder system with our accountant from day one that automatically captures all inter-company emails, contracts, invoices, and board resolutions. It's made this year's filing process so much smoother than trying to reconstruct everything after the fact. The learning curve is definitely steep, but with proper organization and professional guidance, it's completely manageable. Thanks to everyone who shared their experiences here!

I'm dealing with a similar K-1 delay situation right now, and reading through all these responses has been incredibly helpful! I wanted to add one more strategy that worked for me recently - if your old firm was using any partnership management software like QuickBooks or similar platforms, sometimes the K-1s get generated automatically but just sit in a queue waiting for manual review and distribution. When I called my former partnership's accounting department, I specifically asked if the K-1s had been generated but not yet distributed. Turns out they had been sitting in their system for weeks - the accountant just needed to hit "send" but was waiting for some final review that kept getting delayed. Once I asked that specific question, they were able to email me the draft version the same day while they finished their final review process. Also, for anyone considering the AI tax tools mentioned above - I'd recommend double-checking any estimates with a CPA if your payout is substantial like Emma's $175k. The stakes are pretty high with that amount, and while AI can be helpful for initial estimates, having a professional review before filing could save you from costly mistakes or audit issues down the road. The extension route really seems like the safest bet here, especially this close to the deadline. Better to file correctly in October than guess wrong in April!

I went through this exact situation two years ago with a medical practice buyout - had my equity stake sold but left before the acquisition closed, and the K-1 was delayed for months. Here's what I learned from that experience: First, escalate immediately to someone with actual authority. Don't keep dealing with accounting clerks who just say "we're working on it." Find the managing partner of the acquiring firm or the deal attorney who handled the transaction. They have the power to prioritize your request and usually understand the urgency better than mid-level accounting staff. Second, check your buyout agreement for any clauses about tax document delivery. Mine had a specific provision requiring K-1 distribution within 75 days of the partnership's filing deadline. When I referenced this in my escalation email, things moved much faster. Third, if you do end up filing an extension, be strategic about your estimated payment. For a $175k buyout, you're likely looking at significant tax liability. I'd suggest estimating conservatively high rather than low - you can always get a refund, but underpayment penalties are a hassle. The key is documentation and escalation. Don't let them keep brushing you off - this is a legal obligation, not a favor. Good luck getting this resolved!

Stupid question maybe, but what exactly is backup withholding and how much do they take? I think I might have this issue too but never understood what it actually means.

Just wanted to add that timing is really important with B notices. The IRS gives banks specific instructions about when to start backup withholding, and while some banks are lenient (like in your case), others are very strict about the deadlines. Since you mentioned wanting to open a high-yield savings account soon, I'd recommend getting this fully resolved before you apply. Some banks will actually check if you have any outstanding B notice issues when you open new accounts, and having an unresolved notice could complicate the process. Also, make sure when you fill out the W9 that you include a brief note explaining that the SSN was corrected in your account on [date] and that you're responding to ensure proper tax reporting. This gives the bank's tax department context about why there was a delay in your response.

As a small business owner who went through this exact dilemma a few years ago, I want to echo what others have said - the risk is absolutely not worth it. I run a cash-heavy service business (HVAC repair) and was tempted to skim some cash sales when things got tight. What changed my mind was talking to my insurance agent about an unrelated claim. He mentioned that during their investigation, they pulled my business bank statements, credit card records, AND requested copies of service invoices to verify my reported income levels. That's when I realized how many different ways your actual business activity can be tracked and cross-referenced. The IRS has access to all the same records, plus more. They can subpoena your suppliers, cross-check your material purchases against reported jobs, and even analyze your utility usage patterns to estimate actual business activity levels. Instead of hiding income, I invested in better bookkeeping software and found a tax preparer who specializes in service businesses. Turns out I was missing tons of legitimate deductions - vehicle expenses, tools, even a portion of my home internet since I handle scheduling from home. Ended up saving almost as much as I would have by hiding cash, but completely legally. The peace of mind alone is worth doing things the right way.

I understand the temptation, especially when cash flow is tight, but I have to strongly advise against underreporting income. I've seen too many small business owners get destroyed by this approach. The IRS has really sophisticated methods now for detecting unreported income in cash businesses. They don't just look at your bank deposits - they analyze everything from your utility bills (higher usage indicates more business activity than reported) to your inventory purchases to industry benchmarks for businesses your size. One thing people don't realize is that the IRS can also look at your personal expenses and lifestyle to see if it matches your reported income. If you're living beyond what your reported income would support, that's a red flag. Instead of risking everything, consider these legitimate strategies: - Track EVERY business expense (even small ones add up) - Look into equipment purchases you can write off or depreciate - Consider business structure changes (LLC, S-Corp) that might reduce your tax burden - Maximize retirement contributions through business plans I know it feels like the government is taking too much, but the penalties and interest for getting caught far exceed any short-term savings. Plus, you'll sleep better at night knowing you're operating legally. If you're really struggling with cash flow, there are payment plans available with the IRS that are much better than the alternative of trying to hide income.

Has anyone dealt with reporting the actual sale on tax forms? I'm selling a gifted house this month and have no idea which forms I need or where this all gets reported. I use TurboTax usually but not sure if it handles this well?

One thing that hasn't been mentioned yet - make sure you understand the holding period rules for gifted property. Since your grandparents owned the house since the late 70s and you've lived there for 8 years, you definitely qualify for long-term capital gains treatment (which has better tax rates than short-term). Also, don't forget that you can include certain closing costs from when you eventually sell in your basis calculation - things like title insurance, attorney fees, and some other selling expenses can reduce your taxable gain even further. Keep all your closing documents when you sell! Given that you're relocating for work, you might also want to look into whether any of your moving expenses could be deductible, though the rules changed significantly in recent years. It sounds like you're well positioned with the principal residence exclusion though - that $250k exclusion is huge for your situation.