Once their heads stop reeling, U.S. taxpayers may be gobsmacked to learn what's in the new tax law that hurled through Congress and was signed by President Donald Trump with breathtaking speed.

While it offers tax cuts for corporations and most people, the law also ends or scales back familiar tax breaks and makes other changes you probably haven't heard about.

How does it affect you? Here are 16 surprising ways the law could change your return.

1. No more deducting moving expenses

Men loading a dresser onto a moving van
Christina Richards/Shutterstock
Americans won’t be able to deduct moving expenses anymore.

Under the existing tax code, if you moved at least 50 miles to take a new job or start a new business, you could deduct your moving costs — even if you didn't itemize deductions.

Those expenses can be steep, averaging about $4,300 for an out-of-state move, according to the American Moving and Storage Association.

But starting Jan. 1, 2018, Americans won’t be able to deduct moving expenses. The change is scheduled to remain in place until at least 2025.

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