Quick question - are you using the same filing status for both federal and state returns? If you're Married Filing Jointly on federal but using a different status on state, that could explain part of the discrepancy.

I'm glad you were able to get through to the IRS and set up a payment plan! That's a huge relief. Just wanted to add a few tips for avoiding this situation next year: 1. Since you have side gig income, consider making quarterly estimated tax payments (due dates are Jan 15, Apr 15, Jun 15, and Sep 15). Even rough estimates are better than nothing. 2. When you update your W-4, make sure to use the "Two Jobs" worksheet or check the box for higher withholding since both you and your spouse work. 3. Consider increasing your federal withholding by an extra $50-100 per paycheck to create a buffer for your side income. 4. Keep track of any business expenses from your side gig - home office, equipment, mileage, etc. These can help reduce your tax liability. The fact that you're getting a state refund while owing federal is actually pretty common in California. The state withholding tables are more conservative, so many people end up over-withholding for state. Once you fix your federal withholding, you might want to adjust your state withholding too so you're not giving California an interest-free loan all year. Good luck getting everything sorted out!

Something important that hasn't been mentioned yet: If you agree with the IRS's findings on the 4800C, you typically have payment options. You can pay in full immediately, set up an installment agreement, or potentially qualify for an Offer in Compromise if you can't pay the full amount. The key is to respond within the timeframe they specify (usually 30 days) even if you can't pay right away. Ignoring the notice will only result in additional interest and potential penalties. Also, keep in mind that if you disagree, the burden of proof is on you to show why the IRS determination is incorrect.

Hey Andre! I totally understand your panic - I had the same reaction when I got my first 4800C notice! 😅 The good news is that everyone here has given you excellent advice. Since you mentioned you sold stocks this year and tried doing your own taxes, there's a very high chance this is related to those stock transactions. Here's what probably happened: When you sold your stocks, your broker reported the sale proceeds to the IRS on a 1099-B form. But sometimes the cost basis (what you originally paid for the stocks) isn't reported correctly or at all. So the IRS thinks you made more profit than you actually did. Before you do anything else, grab your original tax return and compare it line by line with what the IRS is showing on the notice. Look specifically at Schedule D if you reported capital gains. The discrepancy might be obvious once you see them side by side. Also, definitely keep all your brokerage statements and purchase records handy - you'll likely need them to prove your actual cost basis if you disagree with their calculations. Don't let the tax jargon intimidate you - you've got this! 💪

Welcome to the community! I'm glad you found all the responses helpful - that's exactly what this community is for. Your anxiety about the EIN/SSN mix-up is completely understandable, especially when you're new to filing business income. Just to add one more reassuring data point: I've been a tax preparer for over 8 years, and I see this exact mistake regularly. The IRS computer systems have gotten very sophisticated at cross-referencing taxpayer information. When your 1099-NECs were filed with your EIN and you report that same income on your personal return with your SSN, their systems automatically link these together. The key takeaway everyone has mentioned is spot-on - you correctly reported your income, which is what the IRS cares about most. Administrative details like which identifier appears on which line rarely cause processing issues. One tip for future years: if you have an EIN for your business, you can use either your EIN or SSN on Schedule C - both are acceptable. Some people prefer using their EIN for privacy reasons when dealing with clients, but from a tax filing perspective, either works fine as long as you're consistent with your income reporting. You're handling this exactly right by waiting rather than filing an unnecessary amendment. Your refund should come through without any issues!

I completely understand your stress about this! As someone who made a similar EIN/SSN mistake on my Schedule C last year, I can tell you that you're likely worrying about nothing. The IRS systems are actually quite good at linking your different tax identifiers together. Since you correctly reported your 1099-NEC income on line 11 of Schedule C, you've done the most important part. The IRS receives copies of those 1099s with your EIN, and their computer systems can cross-reference that information with your SSN on your personal return - both numbers are associated with you in their database. I'd strongly advise against filing an amended return unless you receive a specific notice from the IRS requesting clarification. Sometimes trying to "correct" these minor administrative details can actually create more complications and potentially delay your refund processing. The fact that your return was accepted for electronic filing is actually a positive sign. If there were major issues that would cause rejection, you typically would have been notified within a few days of submission. Your refund should process normally - try not to lose sleep over what is really just a common clerical error that their systems handle routinely!

Has anyone actually had the IRS contact them about this kind of duplicate 1099 situation? I'm wondering how likely it is that this would trigger an audit or something.

This is such a frustrating situation that happens way too often with online gambling platforms! I went through the same thing last year with DraftKings and Venmo. The key thing to remember is that you absolutely need to report both 1099s on your return, but you only pay taxes on the actual income once. When you're in TurboTax, enter both forms exactly as they appear, then look for the "duplicate income" or "adjustment" section where you can subtract out the duplicated amount. Make sure you keep detailed records showing the money flow - screenshot your PrizePicks withdrawal, your PayPal deposit, and any confirmation emails. If the IRS ever questions it, you want to be able to show a clear paper trail that it's the same funds. Also pro tip: if the amounts are slightly different due to processing fees, report the higher amount (usually from the gambling platform) as your income, and you might be able to deduct those transfer fees if you itemize. The most important thing is being consistent and having good documentation to back up your filing.

Since no one mentioned it yet - don't forget that 2025 tax rules now allow each qualifying child to potentially get you up to $2,000 in tax credits (that's the increased amount after the recent tax law changes). So make sure whoever claims each child can actually benefit from the full credit amount. If your girlfriend doesn't have enough tax liability due to her part-time work, she might not be able to claim the full child tax credit amount even though she's eligible to claim your son. Something to consider when deciding who claims which child!

Great question! I was in a nearly identical situation a couple years ago. One thing that really helped me was getting everything organized early in the year rather than scrambling at tax time. Since you're paying the mortgage and most household expenses, you should definitely qualify for Head of Household status when claiming your daughter. Just make sure you're tracking everything - I started keeping a simple monthly log of who paid what, which made things so much clearer when it came time to file. Also worth noting that the IRS has gotten stricter about auditing HOH claims in recent years, especially when there are multiple taxpayers at the same address. But if you legitimately pay more than 50% of household costs and have proper documentation, you should be fine. The key is being able to prove your contribution level if they ever ask. One last tip - consider having a quick consultation with a tax professional this year to make sure you're set up correctly going forward. It's much easier to establish the right pattern from the beginning than to fix problems later!