Are retroactive premiums paid with pre-tax dollars (premium conversion)?
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Retroactive premiums are not paid under premium conversion, except when you are changing your enrollment retroactively as a result of birth or adoption of a child. Any additional withholdings for retroactive premiums that are due must be made with after-tax dollars. The Administrator will bill you directly for any retroactive premiums that must be paid with after-tax dollars.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.