Gusto, the payroll, benefits and HR provider for small businesses, acquired Mosey, an AI-powered compliance platform that handles state and local business registrations, filings and renewals, the companies announced on April 9, 2026. Terms were not disclosed.
Gusto plans to build Mosey's product into its platform and launch it later in 2026 as Gusto Business Compliance for its more than 400,000 small-business customers.
Existing Mosey customers were sent an email explaining what the deal means for their accounts, and Mosey's support team said it would contact them.
What Mosey built
Mosey was founded by Alex Kehayias, who started the company after making compliance mistakes of his own while running a business. Its software tracks the state and local rules that apply to a business as it hires and expands, and handles registrations, filings and renewals on the company's behalf.
The platform covers payroll compliance, employee handbooks, entity compliance and tax compliance. Kehayias wrote that Mosey had become a compliance partner for companies including Chime, Grow Therapy and Headspace, and served thousands of owners and HR leaders across all 50 US states.
Kehayias said small business owners care about compliance but should not have to become experts in it.
Pulse 2.0 reported that Mosey uses AI to automate compliance workflows and guide companies through regulatory requirements. Kehayias said he started Mosey because he had made every compliance mistake himself.
“Building a business is hard enough without compliance getting in the way.”
Why Gusto is buying
Gusto serves more than 400,000 businesses and processes tens of billions of dollars in payroll each year. The company said the deal brings state and local registration, filing, renewal and ongoing compliance management into the same platform its customers already use for payroll, benefits and HR.
Gusto cited figures showing that compliance costs businesses with fewer than 50 employees about $14,700 per employee per year, around 20% more than large companies pay, and that 51% of small business owners believe compliance holds back their growth.
The release also pointed to the volume of rules small companies face. Hiring a first employee in a new state can trigger requirements for unemployment insurance, workers' compensation, paid leave filings, tax registrations and state business registrations, and many of the resulting notices still arrive by post. Thousands of new laws are introduced each year.
Tomer London, Gusto's co-founder and chief product officer, said building a business is hard enough without compliance getting in the way.
What Gusto Business Compliance will do
Gusto said the new product will cover state and local business registrations, entity management, filings and renewals, and the handling of mail from government agencies. It will also alert customers to new compliance obligations as they grow or expand into new states.
Kehayias wrote that the combined company plans to put compliance alongside payroll so that more of the work can be automated, and to use AI agents for complex compliance tasks.
Gusto did not say whether Mosey would continue as a separate brand once Gusto Business Compliance launches, or how many Mosey employees would join Gusto.
Gusto's growing platform
Gusto was founded in 2011 as ZenPayroll by Joshua Reeves, Tomer London and Edward Kim, went through Y Combinator and renamed itself Gusto in 2015. It is based in San Francisco.
The company has raised more than $746 million. An employee tender offer in June 2025 valued it at $9.3 billion, and Wikipedia reports that its annual revenue passed $1 billion in early 2026.
Mosey follows Gusto's agreement in August 2025 to buy Guideline, a 401(k) provider for small businesses, for about $600 million, which it called its largest acquisition to date. Together, the two deals extend Gusto beyond payroll into retirement plans and regulatory compliance.
Advisers and terms
Witterquick, led by Sunny Midha, acted as Mosey's exclusive financial adviser on the deal, and SPZ Legal, led by Ryan Shaening Pokrasso, was its legal counsel.
Neither company disclosed the price, Mosey's revenue or its headcount. Kehayias thanked the company's investors and advisers in his announcement but did not name the investors, and the companies did not report Mosey's funding history.
