先打IRS电话或登录官网, 搞清楚是否欠税, 要是他们搞错了, 也可以申述

可以看一下IRS官网的这个链接:

Topic no. 201, The collection process | Internal Revenue Service (irs.gov)

The IRS may levy (seize) assets such as wages, bank accounts, Social Security benefits, and retirement income. The IRS also may seize your property (including your car, boat, or real estate) and sell the property to satisfy the tax debt. In addition, any future federal tax refunds or state income tax refunds that you're due may be seized and applied to your federal tax liability. 

You may call the IRS at 800-829-1040 (see telephone assistance for hours of operation) to discuss any IRS bill. Please have the bill and your records with you when you call.