The DIY ICHRA Implementation Guide
A step-by-step path for employers who want to set up an Individual Coverage HRA without a full-service administrator — the exact class worksheets, contribution calculator, affordability walkthrough, notice templates, and week-by-week timeline our own team uses to implement ICHRA for clients.
How the DIY process actually works
4-minute overview before you dive into the guide.
Video — replace with the recorded walkthrough
ICHRA is simple in concept, tedious in execution.
The idea behind ICHRA is straightforward — set a defined contribution, let employees buy their own coverage. The part that trips employers up is the paperwork behind it: class definitions, an affordability calculation that has to hold up if it's ever questioned, and annual notices with real deadlines. None of that requires a full-service administrator. It does require doing it in the right order.
A self-administered ICHRA sits at the intersection of four federal statutes.
ICHRA administration isn't just one set of rules — it's the ACA, ERISA, HIPAA and the Internal Revenue Code overlapping at once. A single mistake, like continuing to reimburse an employee who dropped their individual coverage mid-year, can trip more than one of these simultaneously. The guide walks through each one so it doesn't happen on your plan.
| Tax year | ACA affordability percentage |
|---|---|
| 2023 | 9.12% |
| 2024 | 8.39% |
| 2025 | 9.02% |
| 2026 | 9.96% |
The affordability test isn't a one-time setup — it has to be recalculated against the current year's percentage, for every employee, every plan year.
DIY looks cheaper — until the risk is priced in.
For a 20-employee group, the direct cost of self-administration does run lower than a TPA's monthly fee. But direct cost isn't total cost. Once the exposure of a single integration failure is weighted by even a conservative 1% chance of an audit or error, the picture reverses.
| Cost category (20-employee group, annual) | TPA model | DIY model |
|---|---|---|
| Software / platform fees | $4,800 | $0 |
| Setup / document fees | $500 (one-time) | $300 (kit purchase) |
| Internal labor (admin) | $600 (12 hrs) | $3,000 (60 hrs) |
| Compliance updates | Included | $250 (research time) |
| Direct operational cost | $5,900 | $3,550 |
| Risk-adjusted total (incl. 1% audit exposure) | $5,900 | $10,850 |
Risk-adjusted cost applies a conservative 1% audit/error probability to the $730,000 total exposure of a single integration failure across a 20-employee group ($36,500 × 20). At that weighting, DIY runs nearly double the cost of professional administration.
Illustrative examples, not real clients.
These are composite scenarios built from common, publicly documented compliance failures — not a description of any actual employer. They're here because the guide is written specifically to prevent them.
The mid-year coverage drop
An employee cancels their individual health plan partway through the year. The self-administering employer isn't notified and keeps processing the monthly reimbursement. Every payment made after coverage lapsed counts as a separate day of noncompliance under the ACA's integration rule.
The owner's own paycheck
A small business owner sets up an ICHRA and — reasonably, but incorrectly — assumes they can reimburse their own family's premiums through it. Under IRS attribution rules, 2% S-corp shareholders and partners aren't eligible employees for this purpose.
The static template
An employer adjusts contribution amounts mid-year using a template Plan Document that was never formally amended. An employee later requests the Summary Plan Description and it takes three weeks to produce.
Every scenario above maps directly to a section in the guide — this is exactly what the class worksheet, the affordability walkthrough, and the notice templates are built to prevent.
Five pieces, in the order you'll actually use them.
Use the DIY guide if —
- You have someone in-house who can own eligibility screening and monthly substantiation.
- You're comfortable tracking annual notice deadlines and recalculating affordability every plan year.
- No participating owners fall under the 2% S-corp / partner exclusion, and no one is enrolled in a Health Care Sharing Ministry.
- You'd rather someone else own the compliance calendar and the audit exposure entirely.
- The group is large enough that class design and monthly substantiation get complex fast.
- You want testing, notices, and PHI handling documented and defensible on someone else's system.
Either path is fine. Cafe Health's standard ICHRA service can take over at any point if the DIY route ends up being more than you want to manage — including the PHI handling and HIPAA exposure that comes with reviewing employee premium documentation directly.