Can I contribute to my HSA plan if I'm under my wife's HDHP insurance?

[bombay_viking]

Hi,

I just got married recently, and am in the process of selecting the insurance for myself & my wife post the "life event". I am interested in signing up for a High Deductible Health Plan (HDHP) & using an HSA along with it (I already have an HSA in my name from before the wedding).

My wife's employer offers better insurance plans, so I want to enroll for myself + my wife under her employer's HDHP. But my income is higher than that of my wife, so I want to contribute to the HSA in my name so as to maximize savings.

(1) Is it possible for me to contribute to an HSA account in my name, if I am covered by my wife's HDHP insurance (through her employer)? -- We are looking to file 2018 returns as "married, filing separate"

(2) Will the 2018 HSA contribution limit for us be $6900, or will it be prorated based on the date of marriage?

Thanks!

[Carl]

THis is a duplicate post. Original is at https://turbotaxcommunity.com/t5/Other-Financial-Discussions/Can-I-contribute-to-my-HSA-plan-if-I-m-...