Can I still contribute to my HSA to lower my taxable income?

[ddgandhi5]

I have not been contributing to my HSA throughout the 2017 tax year.  Only employer contributions (less than $500) have gone into my HSA.  I want to lower my income to by ~$2000 in order to fall into a lower tax bracket.  Can I put additional money into my HSA in 2018 to lower my income into a lower tax bracket?

[AnnetteB]

Yes, you can make additional contributions to your Health Savings Account (HSA) using your own funds up to the due date of your tax return.

Doing so will allow you to deduct the amount of your contribution as long as you do not exceed your contribution limit for the year.