Payroll Made Easy: Automated Payroll Service Claims To Make the Process Quick and PainlessZenefits' new product can reduce the bimonthly task to less than five minutes, the company claims.

Zenefits is one of those Silicon Valley unicorns -- a billion-dollar company once the darling of investors. It grew by offering free accounting and automated, cloud-based HR programs for small businesses (and made its money selling health insurance). But after three years of boom times, the company's revenue growth slowed. So now it's expanding its services -- and the company's attempt to save itself may also save entrepreneurs a big hassle.

The new product: automated,freepayroll services.