Figuring out how to buy a house is no small feat—particularly since the rules keep on changing. So even if you’ve bought a home in the past and feel like the process is old hat, watch out: What worked in 2017 might not fly in 2018. It’s a whole new real estate world out there!

In an effort to prepare you, here are some of the new rules on how to buy a house this year. You will face new tax codes, an onslaught of tough competition, and more that will require you to hone your home-buying skills more than ever. But knowing what awaits you is half the battle. Check out this refresher on how to buy a house in 2018.

1. Know how the new tax codes affect you

New year, new tax code! Although the recent tax reforms have stirred up concerns that they’re putting homeownership further out of reach for many Americans, the reality is more nuanced than that—and shouldn’t deter home buyers from making the leap.