How will the cash incentives impact my taxes? Crystal December 28, 2018 14:32 The tax withholding will be subject to your tax bracket. Also the payment is subject to garnishment. Related articles Do advanced imaging and outpatient surgery require a copay or coinsurance? What is an activity card? What if I believe that I or my spouse completed activities, but I do not see the money in my paycheck? What happens if I exceed the contribution amount?