Anyone know if TurboTax can handle amending a return that was already filed through them? Or do I need to go to a tax professional if I'm in this situation?

I went through this exact same situation last year! The IND-452 rejection code is definitely because you're trying to file a second return for the same tax year. What worked for me was filing an amended return (Form 1040-X) that combined everything - my W-2 income plus my side business income on Schedule C. One thing I learned the hard way is to wait until your original return is fully processed before filing the amendment. I tried to rush it and had to resubmit because the IRS system couldn't find my original return yet. Also, if your side business income pushes you into owing more taxes, pay it ASAP to avoid interest charges piling up from the original due date. The whole process was way less scary than I thought it would be - TurboTax walked me through the amendment step by step and even caught some business deductions I had missed. Just remember that next year you'll want to file everything together from the start to avoid this headache!

Took 9 months for mine last year no joke

3 weeks is still pretty normal for mail delivery + initial processing. I wouldn't worry about USPS losing it yet. The IRS actually has a pretty good track record with receiving mailed returns. If you're really concerned, you could call the IRS practitioner priority line to confirm they received it, but honestly I'd wait another week or two before stressing about it being lost.

Remember that you can also get a property appraisal specifically for determining the land value for tax purposes. It costs money but might be worth it if you have a significant property value. I did this for my rental and the appraiser specifically broke out the land value from the improvements.

Thanks everyone for all the helpful advice! I think I was overcomplicating this. Based on what you've all shared, I'm going to use the proportional method with my tax assessment - so 19% of my $250k purchase price for land ($47,500) and the remaining $202,500 for the building depreciation. I really appreciate the clarity on why the assessed values are so much lower than what I paid - I had no idea that counties use different assessment ratios for tax purposes. That was throwing me off completely. For anyone else in a similar situation, it sounds like there are multiple approaches (assessment ratio, closing documents, appraisal, or even calling the IRS), but the proportional method using tax assessments seems to be the most straightforward for most people.

Don't forget about qualified business income deduction (Section 199A)! As a construction company owner you might qualify for up to 20% deduction of your business income. That alone could save you $200k on taxes. But there are income limitations and it gets complicated depending on if you're considered a "specified service business" or not.

Wow, congratulations on hitting $1M in profit! That's incredible growth for a construction business. I can totally understand feeling overwhelmed by the tax implications though. A few quick thoughts to add to the great advice already given: 1. **Equipment purchases** - Since you're in construction, definitely look into buying equipment before year-end. Things like trucks, excavators, tools, etc. can often be fully deducted in the year of purchase. 2. **Business structure** - The S-corp suggestion is solid. With your income level, the self-employment tax savings alone could be huge. You'd essentially be saving 15.3% on a large portion of your income. 3. **Retirement contributions** - Max out whatever retirement accounts you can. With $1M profit, you could potentially contribute $61K+ to a SEP-IRA or Solo 401(k), which directly reduces your taxable income. 4. **Professional help** - At this income level, investing in a good CPA who specializes in construction businesses is worth every penny. They'll know industry-specific deductions and can help with proper tax planning for next year too. The key is acting quickly since we're getting close to year-end. Don't let analysis paralysis cost you - even basic moves like maxing retirement contributions and strategic equipment purchases can save you tens of thousands.

Don't forget about state filing requirements too. Depending on where your LLC is registered, you might need to file state partnership returns as well. In California for example, an LLC with multiple members has to file Form 565 plus pay an $800 annual tax. This caught me by surprise when I tried to DIY my partnership return last year.

One thing I'd add to the conversation is that you should also consider the time value of money when deciding whether to DIY vs. hire a CPA. Even if you can save $1,500-2,000 by doing it yourself, you need to factor in the 10-15 hours it might take you to learn the process, prepare the forms, and handle any corrections. That said, if you're planning to keep this LLC for several years, the initial learning investment could pay off long-term. I'd suggest maybe trying a hybrid approach for your first DIY year - prepare the return yourself but have a CPA review it before filing. Some CPAs offer review services for $300-500, which could give you peace of mind while still saving money. Also, make sure you're comfortable with the potential liability. When a CPA signs your return, they're taking on professional responsibility. When you sign it yourself, any errors or omissions are on you. For a simple investment LLC like yours, the risk is probably manageable, but it's worth considering.