Free Guide for Business Owners

Starting a 401(k) Under SECURE 2.0

Plan types, 2026 limits and the federal tax credits for small employers

Cover of Starting a 401(k) Under SECURE 2.0

Free Guide · 7 pages

Starting a 401(k) Under SECURE 2.0

Plan types, 2026 contribution limits, the federal tax credits for small employers, the new automatic enrollment rules and a typical setup timeline.

We will use your details to send you this guide and may follow up about it. We never sell your information. See our Privacy Policy.

About This Guide

A Better Time to Start a Plan

Many owners assume a 401(k) is too expensive or complicated for a company their size. The SECURE 2.0 Act changed the math: eligible small employers can receive federal tax credits toward the cost of starting a plan, for automatic enrollment and for the contributions they make, for up to five years. This guide walks through the choices and the numbers for 2026.

What's Inside

What You'll Find

  • 2026 contribution limits at a glance
  • Safe harbor, traditional, profit sharing, SIMPLE, SEP and solo plans compared
  • The startup, automatic enrollment and employer contribution tax credits, with a hypothetical example
  • The automatic enrollment requirement for new plans, and who is exempt
  • A typical setup timeline
  • What a 401(k) can mean for the owner's own savings

Who It's For

  • Owners of businesses without a retirement plan
  • Companies using a SIMPLE IRA or SEP that are outgrowing it
  • CPAs and advisers helping a client decide

Common Questions

About This Guide

Prefer to Talk It Through?

Request a Complimentary Plan Review

Send us your plan's most recent fee disclosure and we will review its costs, investments and structure, then explain what we find in plain terms. No cost and no obligation.

Request a Plan Review 401(k) Services for Employers

This guide is general educational information, not individualized investment, tax or legal advice and not a substitute for advice from your ERISA counsel or third-party administrator, and is not an offer to buy or sell any security. Investing involves risk, including possible loss of principal. Radius Wealth Management LLC is a Registered Investment Adviser. Registration does not imply a certain level of skill or training. 1 Marina Park Drive #1410, Boston, MA 02210.

Request Your Free Consultation