34 things you need to know about the incoming tax law

10. Fewer people will have to deal with the alternative minimum tax.

The alternative minimum tax, a parallel tax system that ensures people who receive a lot of tax breaks still pay some federal income taxes, remains in place for individuals. But fewer people will have to worry about calculating their tax liability under the AMT moving forward. The exemption has been raised to $70,300 for singles, and to $109,400 for married couples.

11. And the mortgage interest deduction has been lowered.

Current homeowners are in the clear. But from now on, anyone buying a new home will only be able to deduct the first $750,000 of their mortgage debt. That’s down from $1 million. This is likely to affect people looking for homes in more expensive coastal regions.

12. None of this will affect your 2017 taxes.

Americans won’t need to worry about these changes when they start filing their 2017 tax returns in about a month. The new laws will first be applied to 2018 taxes.

13. By the way, you can still deduct student loan interest.

The deduction for student loan interest, which is up to $2,500 per year, is safe.

14. You can still deduct medical expenses.

The deduction for medical expenses wasn’t cut. In fact, it’s been expanded for two years. In that time, filers can deduct medical expenses that add up to more than 7.5% of adjusted gross income. In the past, the threshold for most Americans was 10% of adjusted gross income.