Best way to pay for Medicare?

[Greystache]

I am starting Medicare today. I selected a Part C advantage plan. I have not yet started taking Social Security payments. I plan to delay taking SS until full retirement age, maybe later. My wife and I have about $70K in an HSA and about $2M in our IRAs. Our taxable income should be around $70K this year. Should I use HSA funds or IRA funds to pay for Medicare?

[Rob_bob]

If you use the IRA the withdrawal will be taxed as ordinary income.  If you use the HSA it won't be taxed.

[MDM]

Neither?  In other words, can you pay for Medicare (and food/clothing/shelter) from taxable, while doing Roth conversions from the IRA and holding the HSA until mortality tables suggest depleting it?

Of course, much depends on your overall situation.