Automation Removes 401k Middlemen
Kevin Busque and Steven Wu, CEO and CFO of Guideline, on the 401(k) and payroll ecosystem
The real disruption in small business 401(k)s is not better investing, it is stripping out layers of administration that used to get paid as a percentage of workers savings every year. Guideline built around employer paid software fees and a 0.08% asset fee, instead of the legacy model where recordkeepers, advisors, and administrators keep taking a cut of balances as they compound. That turns retirement from a high fee financial product into a lower cost payroll connected software workflow.
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Legacy 401(k)s were built like a chain of toll booths. A recordkeeper, plan administrator, advisor, and investment wrapper could all take fees tied to assets, which is why incumbents often landed in the 1% to 2% range. Guideline repositioned the category as flat SaaS plus a minimal AUM charge, with the employer covering most of the bill.
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The product change behind the pricing change is automation. Digital 401(k) providers connect directly into payroll systems, pull employee and contribution data automatically on every pay run, and remove manual setup and reconciliation work that used to justify middle layer fees. That is why payroll partnerships with Gusto and Rippling matter so much.
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This is now a real category, not just one company story. Human Interest crossed $100M ARR in June 2024, Guideline reached $120M ARR with about $14B on platform, and both are still tiny against a U.S. 401(k) market measured in trillions. The fee pool being attacked is large, recurring, and still mostly controlled by incumbents.
The next step is that low fee 401(k)s become a native payroll feature, not a separate financial product. As payroll platforms bundle retirement more tightly, pricing will keep shifting away from asset based tolls and toward software economics, and the winners will be the providers that own contribution flows, rollovers, and the long term savings relationship after the first 401(k) signup.