1. The Senate passed the Republicans’ sweeping $1.5 trillion tax bill. The House had already approved it, but the chamber will have to vote again because some of the bill’s provisions violated Senate rules.

Here’s a look at what’s in the final bill, including provisions to tax corporations that operate internationally only on domestic profits. If you pay U.S. taxes, here’s our interactive calculator to help you figure out whether your bill is likely to go up or down.