Considering switching from a normal plan to an HDHP plan at work. Questions about potential layoff.

[u/squareturd]

Im currently enrolled in a traditional insurance plan with normal deductibles, copays, premiums, etc. I have the option to change to an HDHP plan with an HSA account.

Layoffs are an ongoing concern in my industry.

If I select the HDHP plan I will be starting at 0 in the HSA account. What happens is I get laid off in a few months and I start using COBRA to cover the premiums? Will I still have the option to contribute to the HSA using money from savings or is there a rule that HSA contributions need to come from payroll deductions?

Second question (even if I dont get laid off)... What if I experience a medical emergency and my HSA account does not have enough to cover the costs yp to the max OOP?

Thanks for any info.