People have until May 17 to file their 2017 taxes and request their refunds.
Those who have already paid off debt and built up their savings may be ready to spend tax refund money.
Word of smaller refunds may have had a chilling effect on filing.
When did taxpayers and industries start to rely on the refund?
The IRS won't be able to send some workers' refunds next year until after Feb. 15.