May 23, 2018 Michael Wallace QuickBooks, Accounting help, Payroll New Tax Law affects federal withholding calculations for 2018 May 23, 2018 Michael Wallace QuickBooks, Accounting help, Payroll The Tax Cuts and Jobs Act made major changes to the tax law. Because of this, you and your employees should conduct a “paycheck checkup.” Click to see how to do it and what action to take.