用medicare的，A是free,其它是需要交錢的。這個交多少，和收入有關。所以，65之前convert,65之後可能就不用擔心收入過高交下一個檔次。如果收入正好在坎上下，計劃一下是可以的。
In 2024, the income brackets for Medicare Part B are as follows:
- Single: $103,000 or less
- Married, joint filing: $206,000 or less
- $103,000–$129,000: $244.60
- $129,000–$161,000: $349.40
- $161,000–$193,000: $454.20
- $193,000–< $500,000: $559.50
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