No, it's not.
Column C, Monthly advance payment of premium tax credit, isn't the difference between Column A, Monthly enrollment premiums, and Column B, Monthly second lowest cost silver plan (SLCSP) premium.
CAUTION REGARDING COLUMN B: Note this text in Applicable SLCSP premium in the Instructions for Form 8962, Premium Tax Credit (PTC):
Form 1095-A, Part III, column B, generally reports the applicable SLCSP premium. If no APTC was paid for your coverage, Form 1095-A, Part III, column B, may be wrong or blank or may report your applicable SLCSP premium as -0-. Also, if you had a change in circumstances during 2023 that you did not report to the Marketplace, the SLCSP premium reported in Part III, column B, may be wrong. In either case, you must determine your correct applicable SLCSP premium. You do not have to request a corrected Form 1095-A from the Marketplace. See Missing or incorrect SLCSP premium on Form 1095-A, later.
[Bolding mine.]
I suggest you read Missing or incorrect SLCSP premium on Form 1095-A in the instructions to see if this situation applies to your Form 1095-A.
To enter, edit or delete your Affordable Care Act information (data from your Form 1095-A) in TurboTax Online:
- Open TurboTax Online
- Select Tax Home in the left pane
- On the Hi, let's keep working on your taxes! screen, select the dropdown on the right side of the Deductions & Credits box, then select Start, Continue, or Pick up where you left off
- On the Your tax breaks page, scroll down and select the dropdown to the right of Medical
- Select Start or Revisit to the right of Affordable Care Act (Form 1095-A)
- Enter all of your relevant information on the following screens
