This original article has the instructions for entering your 1095-A (Health Insurance Marketplace Statement). Alternatively, read below for instructions:

Here's how to enter your 1095-A in TurboTax Online:

1. Open (continue) your return if you don't already have it open.
2. In the upper right, search for 1095-A.
3. Select the Jump to link in the search results.
4. Answer Yes on the Did you receive Form 1095-A for your health insurance plan? screen and Continue.
5. Complete your 1095-A info on the next screen and select Continue.

Turbo Tax is asking me for info that isn't on the 1095A. Something about a Shared Policy Allocation.  The policy only has me, Justin, and my wife, Casey.

I tried ignoring it, but it keeps going back.

I think you need to go back to the 1095-A and edit it.   Search for 1095-A (search aca and use the Jump to aca link), and click on EDIT next to your form.  Verify that the info is correct and hit the Continue button.   It sounds like you have a checkmark in one of the boxes on that page.   If none of those situations apply, remove the checkmarks and hit Continue.  

Make sure that your spouse and dependent are included on your tax return.  Or, if you have a dependent that is required to file a tax return and is filing a separate tax return, you'll need to include their income in your modified adjusted gross income (MAGI). If you received a health insurance plan through the Marketplace, your household MAGI is used to calculate the premium tax credit you may qualify for.   You would select the 2nd option on that screen if this is the case.     @rjfriedmann