WALK-THRU: Entering a New License Key in PA InheriTax WALK-THRU: Entering a New License Key in PA InheriTax Here's a step-by-step walk-through for entering or updating your license key in InheriTax. Lackner Support / Wednesday, October 6, 2021 0 6721 Article rating: No rating Finally, you can get your most current license key anytime without having to call or email, right from within InheriTax! In addition to the steps outlined here, we've made a 3 minute video (below) that shows you the process from start to finish. Read more