@Gerald Maczuga,
The Long Term Capital Gains rates for 2024 include a 0% bracket for "married filing jointly" that caps off at $94,050.
However, that is for total taxable income. If all of your joint income for 2024 is less than $94,050 -- including the entire profit from selling the two rental properties -- then you will not pay any capital gains on sale.
Since you said the total capital gains is $400,000, that will push your total taxable income from employment + sales to the 15% bracket (which caps at $583,750 in 2024).
Federally, you're likely to pay 15% on the gains. You'll also owe the 5.8% Idaho income tax on top of that. So your gains will likely be taxed closer to 21%. And that's before paying the Net Investment Income Tax of 3.38% on all of your income above $250,000.
AND THEN there is the 25% rate that you'll pay on recaptured depreciation from your rental property sales.
So, unfortunately, you're likely to pay close to 20-25% on the $400,000 (based on my loose math here -- please check this with an accountant who is familiar with Idaho). That's roughly $80,000 to $100,000 in taxes.
To avoid paying capital gains on the sale of the rentals, the most straightforward way is to complete valid 1031 exchanges on your two sales. 1031s themselves can be a little unintuitive to navigate. I'll send you a PM about that here shortly.