@Rockdog10 now you see the issue. Here's how you do it correctly.
For the old business for each individual asset indicate "I stopped using this asset in 2021" and enter the date you stopped using it. On the "Special Handling Required?" screen, read the small print to understand why I am telling you to click YES. Then click YES.
Now add together the amount of prior years depr and current year depr to get the total depr taken on that asset up to the date you stopped using it. It's up to you to save that information somewhere outside of TurboTax, because you will 100% need that amount at sometime in the future. I guarantee it.
When you enter the asset in the new business, the cost basis of that asset in the new business will be the original cost basis from the old business *MINUS* the total amount of depreciation already taken on the asset in the old business. Your in service date for the asset in the new business can not be earlier than the opening date of the new business and *must be* at least one day *after* it was removed from service in the old business.
Depreciation will start over from the 1st year using the new, adjusted cost basis. So the yearly depreciation on the asset in the new business, will be lower than the yearly depreciation was on the asset in the old business.
Now, it's up to you to keep track of the original cost basis and depreciation taken in the old business. When you sell or otherwise dispose of the asset later in life, you will have to account for that depreciation in the tax year you sell or otherwise dispose of the asset. If you don't, then the depreication from the old business will be included in capital gains and taxed at the higher capital gains tax rate, instead of the "ordinary" income tax rate.
