Filing legally separated for the first time with one 1095 A involved.

I suspect that there is one 1095-A which covers all of the dependent children and both tax returns need to report the 1095-A information.

If you have childrens Social Security numbers listed on another taxpayer's 1095-A, you will be required to report that 1095-A information on your tax return.

Follow these steps:

• Down the left side of the screen, click Federal.
• Down the left side of the screen, click Deductions & Credits.
• Scroll down to Medical.  Click Show more.
• Click Start / Revisit to the right of Affordable Care Act (Form 1095-A).
• At the screen Let us know if these situations apply to you, click I shared this policy with another taxpayer who's not on my taxes.
• At the screen Since this is a shared policy......, include the taxpayer information.

The IRS requires that your percentages are agreed upon by all and that the percentages add up to 100%.

• Your Premium Percentage
• Your SLCSP Percentage, and
• Your Advanced Payment of PTC Percentage.

Taxpayer 1's tax return should reference taxpayer 2.  Taxpayer 2's tax return should reference taxpayer 1.

See also this TurboTax Help.

@Ladyalltheway