For the education credits, if I'm claiming my daughter as a dependent, do I have to be the one who claims the education credit even if she paid some of her tuition herself from her 529 plan?

Yes, if you claim your daughter as a dependent, you're the only one who can claim the education credits for her - even if she paid some expenses herself. The person who claims the dependent gets the education credits, period. However, for 529 plan withdrawals, they need to be coordinated with education credits. You can't claim expenses paid with tax-free 529 funds for the education credit (that would be double-dipping). So you'd want to document which portion of the tuition was paid from taxable funds versus 529 funds.

What counts as "support" exactly? Does paying for their phone bill and car insurance count? What about if my son uses student loans to pay for his housing?

I like this approach! For the quarterly reviews, are you finding that classifications change over time? For example, does new development eventually become maintenance in subsequent quarters?

Yes, we've definitely seen that transition from new development to maintenance over time. As features mature, work on them tends to shift from primarily new development to mostly maintenance and refinement. We actually created a simple lifecycle model where new features start as 100% development, then after initial release they transition to a mixed classification, and finally to predominantly maintenance after they've been in production for a certain period. The exact timing varies by feature complexity, but having this framework helps us be more consistent in our classifications over time.

This is actually a nuanced question. Open source contributions can potentially qualify as R&E if they're related to your business and provide some benefit to your company's products or services. The key is whether these contributions represent research or experimentation that might lead to development of new products or improvements to existing ones.

Thanks for this perspective! Since I'm planning to sell soon, adding it to the basis makes the most sense for me. Do I need any special documentation beyond the receipt and my communication with the builder to prove this should be part of my basis?

You'll want to keep the inspection report, receipt, and any communication with the builder or HOA that shows the inspection was necessary due to building defects. Also document that other units had confirmed mold issues, as this strengthens your case that the inspection was a necessary expense related to your property. For your basis calculation, maintain a file with all improvement costs, including this inspection. When you sell, you'll use IRS Form 8949 and Schedule D to report the sale, where your adjusted basis will offset the sale proceeds to determine your gain or loss.

This is exactly what I did when I had water damage in my apartment! The landlord paid the testing company directly and it saved me from dealing with any tax headaches. Definitely the cleanest solution if the builder is willing to do it.

Is there some calculator you can use to figure out the right withholding amount? I always struggle with this and either get a huge refund or end up owing.

Yes, the IRS has a Tax Withholding Estimator on their website that's pretty accurate. Just google "IRS withholding calculator" and it should be the first result. You'll need your most recent pay stub and tax return handy when you use it. The calculator will tell you exactly how to fill out your W-4 based on your specific situation. It even lets you adjust whether you want a bigger refund or more money in each paycheck. I use it every time I get a raise or my life circumstances change, and it's kept my tax bill/refund pretty balanced.

Exactly this. I work in payroll and see this all the time. Payroll systems calculate withholding based on the assumption that each check is what you'll make all year. So if you get a raise midyear, the system doesn't know about your previous lower income months and doesn't withhold enough.

That's a great point about midyear raises. The payroll system treats each check as if you've been making that amount all year, which can lead to significant underwithholding. This is especially true for bonuses or people who get promoted partway through the tax year.

How difficult was it to set up the TOD? Does it offer any advantages over just naming them as regular beneficiaries? I'm trying to keep things as simple as possible while still maximizing the tax benefits.

Setting up the TOD was extremely simple - just a form from my brokerage firm that took maybe 10 minutes to complete. The main advantage is that it's specifically designed for investment accounts and creates a cleaner transfer process. The TOD designation accomplishes essentially the same thing as a regular beneficiary designation, but it can sometimes process more quickly after death and avoids probate. Both methods will give your grandkids the full step up basis benefit. One thing to note - if you have multiple grandchildren and want to specify different percentages or specific assets going to specific grandchildren, the TOD forms typically allow for that level of detail.

Yeah, the UTMA/UGMA accounts are terrible for tax efficiency compared to getting the step up basis. My brother went that route and regretted it. Did you consider a trust at all? I've heard revocable living trusts can provide the step up basis while also giving you more control over when/how the kids get the money.