Medicare wages are being combined from tax payer and spouse to propagate to an 8959. Shouldn't 8959 only pertain to one of the earners not a combination?

[vikingoose]

Why is this program incorrectly combining earner medicare wages with the spouse wages and then incorrectly assessing an 8959 Additional Medicare Tax?  Shouldn't they be treated separately?

[sjrcpa]

There is one 8959 and one calculation; using all Medicare wages and self employment income.

[qbteachmt]

Since it's based on $200k single or $250k married, you want it to include Both. That's to their benefit.