No, for me. Tho we're retired, my wife and I each still have enough income that we're treated/assessed independently. The latest statement on this, dated about a month ago, lists my total as ¥554,277 for the year (and year is defined as this past April thru March of '25). That's broken down into 12 payments. April, May and June were ¥55k, July was ¥43,677, and the remaining months, aug-march, are ¥43,200.
So that ¥554k/12=¥46,167 per month, average. (and 46,167/148 = about $312/month)
While that may seem high, or comparable, this next part may surprise you: I'm both older (72), and for a while have been classed as 障害者 (heart valve replacement) (and my 手帳 has me as 1級 and 1種--I'm not sure which is more important, or both). The bottom line of all that means that tho I pay the above premiums, any ongoing care and meds are 100% covered. Usually here for medical bills it's a 30-70 split, so if a bill is ¥1000 the patient's co-pay would be ¥300, and insurance would pay ¥700. I think there are some cases when it is 20-80, or 10-90, but for me these days it's 0-100. That is, I go to a clinic or hospital for whatever, and when done it is fully covered--I don't pay anything. Same for prescriptions--stop by a drug store, wait a bit, and they bring the meds and say have a nice day.
Next week I see my circulatory doc (循環器内科), will have a lot of blood work, some prescriptions for three months (later free at the drugstore), and the cost will be zero. A week or ten days later I'll see another doc, 呼吸器外科 (after a thoracic CT with contrastive medium), and on completion this will also be zero co-pay.
The system is quirky in more than a few ways. My wife has a condition that we both think is worse than anything about me, but she's only classified as level 3 (障害者 3級, and/or 3種), which is such that it's still 30-70 for her. I have a friend whose wife had a pretty bad stroke about two years ago, who has had trouble getting her classified such that their bills are a little cheaper. For some reason the heart valve was automatic, and these other things are not. (True, it was full open heart surgery, and not just TAVR, but still...)
Questions?