@BenCButler I believe the lower FPL 2021 number is correct. Someone on this thread mentioned there is a one year lag, since you sign up in 2021. I looked at the IRS instructions for Form 8962 and they have the lower numbers. See page 7 for the table, page 9 for specific instructions to use .0850 if AGI is 400% or above FPL. I’ve seen the one year lag mentioned on another website too.
https://www.irs.gov/pub/irs-pdf/i8962.pdf
