Edit: apparently too broken https://www.shrm.org/topics-tools/senate-finance-committee-cuts-massive-hsa-changes-from-tax-bill-
The new tax bill makes some interesting changes to HSAs doubling how much you can put into them each year, but there are two catches.
1) the extra contributions must come from a payroll deduction
2) They phase out for high income
Households making 150k and saving into an HSA family plan will be able to contribute a little over $17k to an HSA.
The kicker is at these income levels, these contributions if made with payroll deduction also avoid payroll tax which is split between you and your employer, so you save by not paying 7.65% and your employer saves the same dollar amount. This is not true for 401k where you (and your company) have to pay this payroll tax.
The fact that this bonus fades away for high income (where payroll tax is already capped so no savings for the employer or employee) and the fact it only applied to people who can make payroll contributions to an HSA leads me to believe it was companies looking to save on taxes that pushed this change.
I wouldn't be surprised to see employers pushing more education about how HSA can be used just like 401ks after age 65 to their employees and also start to shift the 401k match into the HSA side of the house rather than 401k to encourage more people to save there instead.
The new tax bill makes some interesting changes to HSAs doubling how much you can put into them each year, but there are two catches.
1) the extra contributions must come from a payroll deduction
2) They phase out for high income
Households making 150k and saving into an HSA family plan will be able to contribute a little over $17k to an HSA.
The kicker is at these income levels, these contributions if made with payroll deduction also avoid payroll tax which is split between you and your employer, so you save by not paying 7.65% and your employer saves the same dollar amount. This is not true for 401k where you (and your company) have to pay this payroll tax.
The fact that this bonus fades away for high income (where payroll tax is already capped so no savings for the employer or employee) and the fact it only applied to people who can make payroll contributions to an HSA leads me to believe it was companies looking to save on taxes that pushed this change.
I wouldn't be surprised to see employers pushing more education about how HSA can be used just like 401ks after age 65 to their employees and also start to shift the 401k match into the HSA side of the house rather than 401k to encourage more people to save there instead.