I'm being laid off the end of Dec 2017, severance will be paid in Jan 2018. I can continue on my employer's healthcare some period of time via COBRA. From what I understand, HSA compliant plans are not common with the ACA, and may or may not be more widely available in 2018, depending on legislative changes.
My question is, if I do not have an affordable HSA compliant plan available on 1/1/18, could I continue health benefits for 1 month via COBRA, fund my HSA 100% in that month, then change to a non-HSA plan of some sort? Anyone have experience with this?