See https://turbotaxcommunity.com/t5/Other-Financial-Discussions/Can-I-contribute-to-my-HSA-plan-if-I-m-... which as of today, is the absolute latest information available as released by the IRS directly.
"We are looking to file 2018 returns as "married, filing separate""
That will cut your allowed annual deductible contribution to your HSA in half if your HDHP is a family plan. Note that for a married couple to file separate is the absolute worst way to file tax-wise. When you file separate returns, you automatically lose quite a lot of deductions you would otherwise qualify for filing joint.
My bad. Was under the wrong tab when I copied the link.
I "think" that's the link. I pulled it from my browser history, so fingers crossed.
Thanks for the reply Carl.
The link you shared refers to the $6900 contribution limit, but doesn't address my issue. Assuming this isn't the link you were referring to, can you please share the correct link when you get a chance?
Thanks for your time!