Spouse's Employer Under 20? Don't Delay Part B at 65
No, not safely. When your spouse's employer has fewer than 20 employees, Medicare is primary for you at 65 — regardless of whether your spouse is still actively working. Delaying Part B exposes you to claim denials and a permanent late-enrollment penalty.
Frequently Asked Questions
- Does the under-20 rule apply if my spouse is still working?
- Yes. Even with your spouse actively employed, if the employer has fewer than 20 employees, Medicare is primary for you. Employer size controls who pays first — not your spouse's employment status.
- Can I delay Part B if the employer plan has good benefits?
- Usually no. Even if the plan has low premiums or broad benefits, employer size determines who pays primary. With under 20 employees, Medicare pays first. Without Part B enrolled, the employer plan covers very little on most claims.
- What should I do if I already delayed Part B in this situation?
- Check whether a Special Enrollment Period is still available. If not, you will need the General Enrollment Period (January–March) and will owe a permanent late-enrollment penalty. Confirm your specific options with Social Security and your benefits administrator.