Tip from personal experience: whatever you do, FILE YOUR RETURN on time for 2024 even if you can't pay what you owe!! The penalty for not filing is WAY worse than the penalty for not paying. The failure-to-file penalty is 5% of unpaid taxes each month while failure-to-pay is only 0.5% monthly.

I feel your pain on this one! I went through something similar a few years back and learned the hard way that the IRS treats each tax year completely separately. You'll definitely owe taxes on your 2024 income even though you're using it all to pay back 2023 taxes. Here's what I'd strongly recommend based on my experience: 1. Set up an installment agreement for your 2023 debt ASAP - this will give you breathing room to handle your 2024 taxes properly 2. File your 2024 return on time no matter what, even if you can't pay immediately (the failure-to-file penalties are brutal) 3. Consider making quarterly estimated payments for 2024 if possible to avoid underpayment penalties The good news is that any interest you pay on your tax debt is deductible on Schedule A (though penalties aren't). Also, the IRS is surprisingly reasonable about payment plans if you're proactive about reaching out to them. Don't let this become a snowball effect - deal with both years separately and you'll get through this!

Has anyone actually gone through the process of amending a return for this specific issue? I'm in a similar situation but wondering if the hassle of amending is worth it. How long did it take to get your refund for the overpaid NIIT?

I went through this exact same situation a couple years ago! My tax preparer had been classifying my S-Corp income as passive for THREE years before I caught it. Like you, I'm the sole owner-employee doing all the work - there was nothing passive about it. The material participation tests that Connor mentioned are key here. Since you're the only employee, you almost certainly qualify under multiple tests, especially the "substantially all the work" test (#2) and likely the 500+ hours test (#1) as well. I ended up filing amended returns for all three years I was eligible to amend (you have 3 years from the original filing date). The total NIIT refund was substantial - over $12,000 combined. Each amended return took about 4-5 months to process, but it was absolutely worth it. One tip: when you meet with your EA about this, bring documentation showing your hours worked and level of involvement in the business. Even though it should be obvious that you materially participate, having records helps support the classification change. Also, make sure they understand this affects both your Schedule E AND your Form 8960 calculation. Don't let them brush this off as "not important" - the NIIT savings alone make it worth correcting, and you want to make sure it's done right going forward.

Has anyone used TurboTax to handle a situation like this? I have similar rental losses and wondering if the software can handle all these passive activity rules correctly.

I'm dealing with a very similar situation after inheriting my aunt's duplex last year. One thing I learned that might help - make sure you're calculating your depreciation correctly with the stepped-up basis. Since you inherited the property, you get to depreciate based on the fair market value at the time of inheritance ($1.6M in your case), not what your grandfather originally paid for it. This is actually beneficial because it likely gives you much higher annual depreciation deductions. Also, keep detailed records of any time you spend managing the property - even if it's just reviewing tenant applications, coordinating repairs, or doing research about rental rates. If you can document more than 100 hours of participation annually, you might qualify for that $25,000 active participation allowance that Dylan mentioned earlier. Every hour counts toward potentially being able to use those losses against your other income! The depreciation recapture when you eventually sell is something to consider long-term, but for now, maximizing your current deductions while following the rules is probably your best strategy.

Has anyone here used TurboTax to handle the Form 8815 for excluding savings bond interest? I'm trying to figure out if their software handles this correctly or if I need to go to a professional this year. Never done this savings bond exclusion thing before and I'm a little nervous about messing it up.

Just wanted to add one important detail that I learned the hard way - make sure you understand the income phaseout limits before you commit to this strategy. The exclusion phases out completely for married filing jointly couples with MAGI over $175,200 (for 2025), and starts phasing out at $145,200. What caught me off guard was that the bond interest itself gets added to your MAGI when you redeem the bonds, which could potentially push you into or further into the phaseout range. So if you're close to that $145,200 threshold, make sure to calculate whether the additional bond interest will reduce or eliminate your exclusion. I almost made this mistake with about $15,000 in bond interest that would have pushed my MAGI too high. I ended up splitting the redemptions across two tax years to stay under the limit. Just something to keep in mind when planning your timing!

Another thing to keep in mind is that your federal tax withholding on your W-2 might need adjustment after installing solar panels because of the credit. Once you get the credit, you might be getting a much bigger refund than normal, which essentially means you've been giving the government an interest-free loan. You could adjust your W-4 to have less tax withheld from each paycheck, essentially giving yourself a "raise" throughout the year instead of waiting for the big refund. My solar installer actually mentioned this, but I didn't think much of it until I saw my massive refund this year!

Just wanted to share my experience since I went through this exact same confusion last year! The term "non-refundable" is so misleading - I actually called my tax preparer in a panic thinking there was an error. What really helped me understand it was thinking about it this way: imagine you owe $3,000 in taxes but had $5,000 withheld from your paychecks during the year. Normally you'd get a $2,000 refund. Now add a $2,500 solar credit - this reduces your actual tax owed from $3,000 to $500. Since you still had $5,000 withheld, your refund becomes $4,500 instead of $2,000. The solar credit isn't being "refunded" to you - it's just reducing what you actually owe, which makes more of your withholdings available to come back to you. The "non-refundable" part just means the credit can't make your tax liability go below zero (so you can't get MORE than what was withheld). H&R Block handled it correctly! The software automatically does all these calculations behind the scenes, which is why it seemed so simple. Just make sure you keep all your solar installation documentation for your records.