Compare the Top 401(k) Providers that integrate with Paychex Flex as of April 2026

This a list of 401(k) providers that integrate with Paychex Flex. Use the filters on the left to add additional filters for products that have integrations with Paychex Flex. View the products that work with Paychex Flex in the table below.

What are 401(k) Providers for Paychex Flex?

401(k) providers offer 401(k) plans and software that enables companies to offer 401(k) retirement plans to their employees, and streamlines the management of these 401(k) plans by the employers and employees. Compare and read user reviews of the best 401(k) providers for Paychex Flex currently available using the table below. This list is updated regularly.

  • 1
    TimeTrex

    TimeTrex

    TimeTrex

    Rules can be automatically applied to specific employees or situations to automate all calculations, including overtime, premiums and multiple pay rates! Managers can remotely monitor and get up to the second reports regarding employee time and attendance, from anywhere at anytime. Eliminate waiting until the end of the pay period to review attendance records. Setup an unlimited number of accruals to automatically track employee vacations, sick days or banked time. Employees can also see their own accrual balances, eliminating time-consuming requests to human resources to lookup that information. Management has fine-grained control and tracking over where employees are able to punch in/out from, including down to the device and GEO fence level. Allocate time to jobs / tasks and track employee expenses while in the field. Handle employee skills / qualifications and process payroll with just a few clicks.
    Starting Price: $5 per month
  • 2
    Ubiquity Retirement + Savings

    Ubiquity Retirement + Savings

    Ubiquity Retirement + Savings

    A 401(k) is a savings vehicle established by a business or self-employed person to help employees and business owners save for retirement as well as take advantage of the tax benefits provided to both the business owner and employees. The flexible features of a 401(k) can accommodate the needs of a broad range of retirement planning objectives. Each individual gets to choose how much of their pay will be deposited into their 401(k) account each pay period – before taxes are deducted and how those dollars will be invested. Many businesses choose to match a portion of the employees’ contributions, helping retirement savings grow even faster. In addition to providing financial security in retirement, saving in a 401(k) provides tax advantages for both the business owner and the employees, including tax deductions, tax-deferred earnings, and tax credits. For example, when an employee saves in a 401(k), their contribution is deducted from their paycheck before income taxes are withheld.
  • 3
    Betterment

    Betterment

    Betterment

    Betterment is a trusted digital investment platform designed to make building wealth and saving for retirement simple. It offers globally diversified portfolios managed with automated trading, rebalancing, and tax-loss harvesting technology, helping investors maximize returns while minimizing stress. Beyond investing, Betterment provides high-yield cash accounts with APYs significantly above the national average, plus FDIC insurance up to $2 million for peace of mind. For retirement, Betterment supports Traditional, Roth, and SEP IRAs, each offering distinct tax advantages to fit different financial situations. The platform also makes it easy to roll over old 401(k) plans into low-cost IRA accounts, helping clients reduce fees and consolidate assets. With Betterment’s personalized planning tools and expert guidance, individuals gain clarity and confidence in achieving long-term financial goals.
  • 4
    Vestwell

    Vestwell

    Vestwell

    Flexible investments and plan design so you can build the right offering for today and make future changes needed as you grow. Modern, user-friendly interactions and experience. Transparent, competitive pricing so you and your employees always know what you're paying for. Full-service administrative capabilities including operations, servicing, and 3(38), 3(21), and/or 3(16) compliance. Work with or without an advisor to select the right plan for you and your employees. Provide the information needed to efficiently run and service your plan, all handled through our digital, interactive portal. We'll invite your employees to start saving... just upload your first payroll and census and we're off to the races!
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