How do you calculate the premium percentage, SLCSP percentage, and the advanced payment of PTC percentage?

[hbl3973]

angelh206,

IRS publication 974 "Premium Tax Credit (PTC)" [https://www.irs.gov/pub/irs-pdf/p974.pdf]  details the provisions and exceptions for the PTC.

IRS form 8962 [https://www.irs.gov/pub/irs-pdf/f8962.pdf] and accompanying instructions [https://www.irs.gov/pub/irs-pdf/i8962.pdf] tell you how to calculate the PTC given the information that appears on your 1095-A form.