Has anyone used the IRS's Interactive Tax Assistant for this kind of question? I think it has a module specifically about filing status and dependents. Might be worth checking before paying for services.

Just wanted to add another perspective here - I'm a tax preparer and see this situation frequently. The advice about your girlfriend claiming both kids and filing HOH while you file Single is generally correct and usually optimal, but there's one scenario worth considering. If your girlfriend's self-employment income fluctuates significantly year to year, you might want to consider alternating who claims the kids. In years where her business income is very low, she might not have enough earned income to maximize the Earned Income Tax Credit, and you might benefit more from claiming one child for HOH status. Also, since she has self-employment income, make sure she's taking advantage of the home office deduction if she uses part of your home exclusively for her photography business. That can reduce both her income tax and self-employment tax liability. One last thing - document everything about your living arrangements and who pays what expenses. The IRS does occasionally question HOH status and dependent claims for unmarried couples, so having clear records of your household setup will help if any questions arise.

Don't forget about self-employment tax! On $105k of net income, your SE tax alone will be around $14,800 (15.3% of 92.35% of your net income). That's ON TOP of your income tax. This is the part that shocked me my first year freelancing. I had saved for income tax but completely forgot that I now had to pay both sides of Social Security and Medicare. Make sure you're calculating your quarterly payments including BOTH income tax AND self-employment tax!

Just to add another perspective - I'm a freelance graphic designer and was in a similar situation last year with around $120k in 1099 income. Here's what I learned the hard way: The penalty isn't just about the percentage - it's also about cash flow. Even if you're willing to pay a penalty, having to come up with $25,000-30,000 all at once in April can be brutal. I thought I had enough saved, but then had some unexpected expenses in March and suddenly scrambling to pay my tax bill was incredibly stressful. What worked for me was setting up automatic transfers to a separate "tax account" every time I got paid. I transfer 30% immediately - covers both income tax and self-employment tax with a small buffer. Then I make the quarterly payments from that account. Takes the guesswork and stress out of it. Also, don't forget that if you end up owing more than $1,000 when you file, you might be required to make estimated payments the following year regardless. So you might as well get into the habit now rather than dealing with penalties and scrambling later.

I really appreciate all the thorough advice everyone has provided! This thread has been incredibly helpful in preparing me for the conversation with my neighbor and eventual consultation with our site coordinator. Based on everything discussed here, I now have a clear checklist of information to gather: 1) Any Medicare correspondence from late 2023 about premium adjustments (IRMAA) 2) Details about major financial events in 2022 (property sales, large distributions) 3) All SSA correspondence, even if it seemed routine at the time 4) Information about any work income while receiving benefits 5) Whether they've already notified SSA about the father's death 6) Their 2022 and 2023 tax returns for context The insights about IRC Section 1341 "claim of right" calculations and the distinction between pre-existing overpayments versus post-death benefit issues have given me the technical background I need to have an informed discussion with our experienced preparers. What strikes me most is how complex these SSA-1099 Box 4 situations can be - there are so many potential causes from IRMAA adjustments to earnings test violations to benefit coordination issues. I'm grateful to this community for helping me understand that thorough preparation and documentation will be key to resolving this efficiently for my neighbor's family during this difficult time. Thank you all for taking the time to share your expertise. This is exactly why I value being part of this community - the collective knowledge here is invaluable for helping taxpayers navigate complex situations.

As someone who's worked through similar SSA-1099 Box 4 situations with elderly family members, I want to echo what others have said about the importance of thorough preparation. Your approach of gathering all the information before meeting with your site coordinator is exactly right, especially given the complexity and emotional difficulty of the situation. One additional consideration that hasn't been mentioned yet: if the father's Box 4 repayment is truly about half his annual benefits, there's a possibility this could be related to a "windfall elimination provision" (WEP) or "government pension offset" (GPO) adjustment. These provisions can reduce Social Security benefits for people who also receive pensions from work where they didn't pay Social Security taxes. Sometimes these adjustments are applied retroactively when SSA discovers unreported pension income, which could explain the substantial repayment amount. I'd suggest adding to your checklist: ask if either parent ever worked for a government entity (federal, state, or local) or received any pension payments that weren't subject to Social Security taxes. Even small pensions from years ago can trigger these provisions, and the adjustments can be quite significant. Given everything this family is dealing with right now, your careful preparation will really help ensure their tax situation gets resolved correctly without requiring multiple appointments. The VITA program is such a valuable service, and volunteers like you who take the time to understand complex situations make all the difference.

@Freya Andersen - I completely understand your panic! I'm also new to this community and just went through this exact same anxiety when I used a professional tax preparer for the first time earlier this month. That Form 8879 had me completely stressed out too because I'd never encountered it before. Here's what I learned that really put my mind at ease: The Form 8879 is basically your electronic signature that gives your tax preparer legal permission to file your return digitally with the IRS. It's the e-filing equivalent of physically signing a paper tax return. Once you signed it and gave it back to your preparer, you've essentially "signed" your tax return and completed your part of the process. Most preparers will submit your return within 1-2 business days of receiving your signed 8879, and the IRS usually sends back acceptance confirmation within 24-48 hours. The form itself doesn't get mailed to the IRS - your preparer keeps it in their records as proof they had authorization to e-file on your behalf. I'd strongly recommend calling your preparer first thing tomorrow morning to ask for confirmation that your return was submitted and accepted. Any good preparer should be able to give you the exact date and time the IRS accepted your return. You can also verify independently using the "Where's My Refund?" tool on irs.gov - just have your SSN, filing status, and exact refund amount ready. Don't stress too much - by signing that 8879, you've done everything right! The fact that your preparer used this form shows they're following proper procedures. I was losing sleep over this same issue until I understood the process, but everything worked out perfectly. You're definitely on track for the deadline!

@Freya Andersen - I completely understand your stress! I'm also new to this community and went through this exact same panic when I used a professional preparer for the first time last year. The Form 8879 was totally confusing to me too - I had no idea what it meant or if I needed to do anything else with it. Here's what helped calm my nerves: The Form 8879 is essentially your electronic signature that authorizes your tax preparer to file your return digitally with the IRS. Think of it like signing a paper tax return, but for electronic filing. Once you signed it and returned it to your preparer, you've completed your part - they handle the rest! Your preparer should file your return within 1-2 business days of receiving your signed 8879, and the IRS typically confirms acceptance within 24-48 hours after that. The form itself stays with your preparer as proof they had permission to e-file for you - you don't need to mail anything. I'd definitely call your preparer tomorrow to ask for confirmation that your return was submitted and accepted by the IRS. You can also check the "Where's My Refund?" tool on irs.gov with your SSN, filing status, and exact refund amount to verify independently. Don't panic - by signing that 8879, you did everything correctly! The fact that they gave you this form shows they're following proper e-filing procedures. I was anxious about this for days until I got my confirmation, but everything worked out perfectly. You're definitely on track for the deadline!

I'm also waiting on a CA refund that was marked "issued" about a week ago. Reading through these experiences is really reassuring - it sounds like 7-10 business days is pretty normal for paper checks. I had no idea about the mailing contractor delay that @Isabella Ferreira mentioned, that explains a lot! For what it's worth, I signed up for USPS Informed Delivery like @Molly Chambers suggested and it's been helpful for tracking what's coming. At least now I'll know the day before it actually arrives in my mailbox. @Mohammed Khan - since you mentioned this is for investment planning, you might want to build in that extra buffer time going forward. Seems like CA is more predictable than fast when it comes to refund delivery!

I'm in a similar situation - my CA refund was marked "issued" 6 days ago and I've been checking my mailbox daily! Reading through everyone's experiences here has been incredibly helpful. The insight about the 2-3 day gap between "issued" status and actual mailing really puts things in perspective. I also signed up for USPS Informed Delivery after seeing it mentioned multiple times in this thread - already got it set up and it should give me advance notice when the check is coming. @Mohammed Khan, for your investment planning timeline, it sounds like building in 10-12 business days from "issued" status is the safe bet based on what everyone's shared here. Better to be pleasantly surprised if it arrives early than to have your investment timing thrown off by expecting it too soon! Thanks to everyone for sharing their actual timelines - this real-world data is so much more useful than the vague official estimates. 📈