What a match formula actually costs depends far more on who participates than on how generous the formula looks. Model the formula, then move participation and watch the cost move with it. Every number on this page is calculated in your browser and never leaves your device.
Participation and average deferral move every year, and your match cost moves with them, so this is a number worth recording each quarter rather than once. The HRAnalyst™ Workbook is a printable tracker for every calculator on this site, with the formula, the recommended cadence and space for four quarters. Join the list and we will send it, along with new calculators and workforce analytics as they publish.
Formula used
Simple: Matched Percent of Pay = MIN( Average Deferral, Match Cap ) × Match Rate
Two tier: Matched Percent of Pay = MIN( Deferral, Tier 1 Cap ) × Tier 1 Rate + MIN( MAX( Deferral - Tier 1 Cap, 0 ), Tier 2 Cap ) × Tier 2 Rate
Dollar cap: Match per Participant = MIN( Salary × MIN( Deferral, Cap ) × Rate, Dollar Cap )
Participants = Eligible × Participation Rate
Total Employer Cost = Match per Participant × Participants
Cost as Percent of Eligible Payroll = Total Cost ÷ ( Eligible × Average Salary ) × 100
Maximum Possible Cost = cost if every eligible employee deferred at or above the cap
The simple and two tier formulas produce a percent of pay, which is multiplied by the average salary to give the match per participant. The dollar cap formula produces the dollar figure directly and holds it at the cap whenever the percentage would pay more. The maximum assumes full participation with every eligible employee deferring at or above the cap. No limit of any kind is applied on this page.
Safe harbor plan designs carry specific formula, vesting and employee notice requirements under IRS rules, and the annual limits on deferrals and on the compensation that can be counted are set by the IRS and change from year to year. This page models cost only. It applies no limits and makes no compliance determination. Confirm any plan design with your plan advisor or ERISA counsel, and check the current year limits directly with the IRS.
The gap between what your formula could cost and what it does cost is participation, and it is usually the largest single lever on this page. A more generous formula that nobody uses costs less and is worth less than a modest one everyone uses. Before you redesign the formula, find out why people are not in it.
Average deferral rate hides the shape of the distribution. If half your participants defer below the cap and half defer well above it, the average tells you the cost but not who is leaving money on the table. Run this again on the group deferring below the cap and you will see the size of the conversation you need to have.
A cost built as though everyone eligible contributes overstates the budget, sometimes badly. Model the participation you have, then model the participation you want, and bring both numbers to the conversation.
Averaging in the people who defer nothing pulls the rate down and understates what each participant actually costs you. The deferral figure this page asks for belongs to the people who contribute, and participation is handled separately.
A rich first tier is not reserved for people who defer the most. Every participant who reaches it collects it, so the first tier usually drives more of your cost than the second one does. Test that before you make the first tier more generous.
The calculators and content on HRAnalyst are provided for informational purposes only and do not constitute legal, tax, or accounting advice. Compensation and compliance obligations vary by jurisdiction. Consult qualified counsel before acting on any result.
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