You should run your plan to reflect the current tax law. 

You can run the second option to see how your plan looked prior to the OBBBA changes. 

  1. Current Tax Law (One Big Beautiful Bill Act - OBBBA): This is our default setting. 
  2. Tax Cut and Jobs Act (TCJA) made permanent: This option is for comparison purposes in order to learn the impact of the new OBBBA on your plan. This option implements the TCJA tax law, but that law had various provisions due to expire at the end of 2025. This option assumes the law would have been changed to make the TCJA provisions permanent rather than expiring them.

Further Resources: