Your accountant's response is frustrating but actually makes perfect sense from a professional liability standpoint. Multi-family property sales with mixed personal/rental use are genuinely some of the most complex tax situations in real estate. Here's what's likely making your accountant cautious beyond the basic calculations others have mentioned: **Basis allocation headaches**: With 7 years of ownership, you've probably made improvements that need to be allocated between personal and rental use. Even "shared" improvements like a new roof get tricky - did you depreciate the rental portion? How do you split the basis increase? **State-specific complications**: Depending on your state, the tax treatment might be completely different from federal rules. Some states don't recognize the primary residence exclusion for mixed-use properties at all. **Audit risk factors**: The IRS flags mixed-use property sales for review more often than standard residential sales. Your accountant knows that any estimate they give you now could come back to haunt both of you if the actual calculation is wrong. **Income timing issues**: Your total tax liability depends on your other income for the year, which might not be finalized until December. Instead of asking for a specific dollar amount, try asking your accountant to explain the calculation framework and what range of outcomes you should prepare for. That way you can plan financially while acknowledging the variables that genuinely can't be pinned down yet. The complexity is real, but it's manageable with proper preparation and realistic expectations.

I'm going through a similar situation with my duplex sale, and after reading through all these responses, I realize I was being unrealistic expecting my accountant to give me exact numbers upfront. What really helped me move forward was creating a spreadsheet with all the variables people mentioned here - purchase price, major improvements, estimated depreciation taken, expected sale price ranges, etc. Then I asked my accountant to walk me through the calculation methodology using hypothetical numbers. This approach gave me a much better understanding of how the math works and what documentation I need to gather. Now I can see why a 4-unit property where you lived in one unit for 2 out of 7 years creates so many calculation branches. A few practical tips from my experience: - Dig up ALL your improvement receipts now, even small ones - If you've been doing your own taxes with software like TurboTax, export your Schedule E forms for all years owned - this shows exactly what depreciation you claimed - Ask your accountant what their fee structure is for the actual sale calculation vs. just the consultation The "it's complicated" response is frustrating when you want to plan, but it's actually the most honest answer given how many variables are still unknown. Better to get a range and plan conservatively than get a false precise number that's way off.

Has anyone mentioned the mortgage interest deduction limits? If you're filing separately, the limit for mortgage interest deduction drops from $750k to $375k of mortgage debt per person. If you have a larger mortgage in a high-cost area, this could be significant.

Great discussion everyone! As someone who's been through this exact scenario, I want to add one more consideration that saved us a lot of money: the Net Investment Income Tax (NIIT). At your income level ($410k), you're definitely subject to the 3.8% NIIT on investment income if filing jointly (kicks in at $250k for joint filers). But if you file separately, the threshold drops to $200k per person, which might actually work in your favor depending on how your investment income is distributed between you and your husband. If most of your investment income is in one spouse's name and that spouse makes significantly less than $200k, filing separately could help you avoid or reduce the NIIT. This is especially relevant if you have rental properties, dividends, or capital gains. Also, don't forget about the Additional Medicare Tax (0.9%) which has similar thresholds - $250k joint vs $200k separate. The interaction between these taxes and your local tax situation could be the deciding factor. I'd definitely recommend running the numbers with all these factors included, not just the basic income tax calculation. The savings from avoiding these additional taxes might outweigh the loss of other joint filing benefits.

Does anyone know if eBay provides any kind of itemized statement with the 1099-K to help with tracking all this? I sold maybe 30 different items last year and I'm dreading having to go back through all the transactions manually.

Thanks for all the helpful advice everyone! I'm in a similar boat with about $800 in eBay sales this year and was stressing about the 1099-K. One thing I learned from reading IRS Publication 544 is that if you're selling personal items, you only report the gains (where you sold for more than you paid), not the losses. So @Andre Laurent is exactly right - you can't deduct personal losses against other income. For anyone still confused about Schedule C vs Schedule D, the key test is your intent when you bought the items. If you bought them for personal use and are just decluttering, use Schedule D. If you bought items specifically to resell for profit, that's Schedule C business income. I've been keeping a simple spreadsheet with columns for: Item Description, Original Cost, Sale Price, Gain/Loss. Makes it much easier to track everything and identify which gains I actually need to report.

Just to add - make sure you're responding to the CP2000 notice within the deadline they gave you! Even if you're still gathering documentation, send something in writing before the deadline saying you disagree with their findings and are gathering evidence. The worst thing you can do is miss their response deadline because then it becomes much harder to dispute. You can always send additional documentation later, but that initial response preserving your right to dispute is super important.

I went through almost this exact same situation two years ago! The key thing that saved me was getting very specific documentation from my school showing the actual payment dates versus charge dates. Here's what I'd recommend based on what worked for me: 1. Get that student account statement from your bursar's office like Katherine suggested, but make sure it clearly shows TWO different date columns - "Date Charged" and "Date Payment Received" 2. Gather ALL your payment proof from January 2021 - credit card statements, bank records, loan disbursement records, etc. The IRS needs to see that YOU didn't actually pay until 2021, regardless of when the school posted charges 3. When you respond to the CP2000, include a cover letter explaining the timing discrepancy. Something like "Although tuition charges were posted to my student account in December 2020, I did not make any payments until January 2021, as evidenced by the enclosed documentation" 4. Don't just send copies - send certified mail with return receipt so you have proof they received your response The IRS accepted my documentation and reversed their adjustment, but it took about 8 weeks to get the final resolution letter. The key was showing that my actual out-of-pocket payments happened in 2021, which is what qualifies you for the credit on that year's return. Stay persistent - you're absolutely right that this is a technicality, but it's one you can win with the right documentation!

Hey Sean! Congratulations on the upcoming baby! Your situation isn't as complicated as you think. You're absolutely right that you can file as Head of Household based on your new baby, even with a December birth. Here's the key thing everyone's touched on but I want to emphasize: for Head of Household, you need YOUR qualifying person. Your girlfriend's son doesn't count for YOUR filing status since you're not married yet - he's not legally your stepchild. But that's totally fine because your biological child will be your qualifying person. The December timing works in your favor too. As others mentioned, the "more than half the year" rule for a newborn only applies to the time since birth, not the full calendar year. One practical tip: start keeping detailed records NOW of all household expenses you pay (rent/mortgage, utilities, groceries, etc.). You'll need to show you paid more than half the cost of maintaining the home. This becomes especially important since you and your girlfriend will both potentially be filing as Head of Household from the same address - the IRS may want to see clear documentation of who paid what. Good luck with the baby and congratulations on the upcoming wedding next summer!

This thread has been super helpful for understanding HOH rules! I'm in a somewhat similar situation - unmarried couple, each with our own kids from previous relationships, plus expecting a baby together next year. One thing I wanted to add that might help Sean and others: when you're documenting those household expenses for HOH purposes, make sure you're thinking about ALL the costs of keeping up a home. It's not just rent/mortgage and utilities. The IRS includes things like property taxes, mortgage interest, rent, utilities, upkeep and repairs, property insurance, and food consumed in the home. I learned this the hard way when I first tried to calculate whether I was paying "more than half." I was only counting the obvious bills like rent and electric, but once I factored in groceries, home repairs, insurance, etc., the total household costs were much higher than I initially thought. Also, Sean - since you mentioned you've been helping raise her son for almost 2 years, just remember that even though he can't be YOUR qualifying person for HOH purposes until you're married, any support you provide for him could still affect the overall household expense calculations. Just something to keep in mind when you're doing the math on who pays more than half of what.