Setting Up a Cash Balance Plan: The Real Timeline and Cost

Step 1: Qualify honestly

Three tests: is the business consistently profitable, is owner income comfortably into the $200,000-plus range, and is the owner typically 40 or older. A plan adopted on one strong year in an otherwise volatile business creates a mandatory funding obligation you may not want in year two.

Step 2: Actuarial design

An enrolled actuary converts age, compensation, entity type, and staff census into a maximum deductible contribution and a funding range. This is also where the crediting rate, retirement age assumption, and any paired 401(k) and profit sharing formula get set. Expect a week or two, faster with clean census data.

Step 3: Adopt the document

The plan generally must be adopted by the business's tax filing deadline including extensions to count for that tax year. Adoption is a signature on a plan document, a trust, and a funding policy — not a funding event.

Step 4: Fund

Contributions are deductible for the plan year if made by the extended due date of the return. Assets go into a trust invested toward the crediting rate — deliberately conservative, because outperformance creates the overfunding problem rather than a windfall.

Step 5: Annual maintenance

• Annual actuarial valuation determining the minimum required and maximum deductible contribution
• Form 5500 with Schedule SB, signed by the enrolled actuary
• Participant benefit statements
• A funding-status review before year-end to catch overfunding early

What it costs

An owner-only cash balance plan typically runs a few thousand dollars to install and a similar range annually for actuarial and administrative work — a rounding error against a six-figure deduction, but a real fixed cost that argues against adopting a plan you cannot fund for at least three to five years.