Tax bill simplifies filing for some but complicates it for others — and don't count on that postcard

A priority of the Republicans’ tax overhaul was simplification, and they drove home the point this fall with an omnipresent prop: a red-white-and-blue postcard.

“We're making things so simple that you can do your taxes on a form the size of a postcard,” House Speaker Paul Ryan (R-Wisc.) said last...