When one starts Medicare, Part B and Part D premiums are estimated using the income tax filing for 2 years prior. The premium is adjusted up or down when taxes are filed each year. The following charts list the adjustments.

Below the charts, is the official booklet on Medicare premium adjustments and the SSA-44 form you will need to submit an appeal.

2019 Medicare Premium Adjustments - Singles & Couples Filing Jointly

Single FilingCouple Filing JointlyPart B PremiumPart D (Rx) Premium Add-on
to $85,000to $170,000$135.50$0.00
$85,00.01 to $107,000$170,000.01 to $214,000$189.60$12.40
$107,000.01 to $133,500$214,000.01 to $267,000$270.90$31.90
$133,500.01 To $160,000$267,000.01 to $320,000$352.20$51.40
$160,000.01 To $500,000$320,000.01 to $750,000$433.40$70.90
over $500,000over $750,000$460.50$77.40

2019 Medicare Premium Adjustments - Couples Filing Separately

Couple Filing SeparatelyPart B PremiumPart D (Rx) Premium Add-on
to $85,000$134.00$0.00
$85,000.01 to $415,000$433.40$70.90
Over $415,000$460.50$77.40