What amount should I enter for distributions from my MSA?

The trustee of your MSA should send you Form 1099-SA. You'll see your total distribution amount in Box 1. If you can't find the form, you can reach out to your MSA trustee.

If you received a Form 1099-SA for multiple Archer or Medicare Advantage MSAs, add the amounts in each Box 1 together and report the total distribution amount.