A contingency bonus is an annual carrier payment calculated against the agency's premium volume and loss-ratio performance on that carrier's book. Each carrier's formula differs, but the inputs are consistent — volume tiers, loss-ratio thresholds, sometimes new-business mix — and the payments are material: an agency that hits a tier can earn 3% to 8% of written premium on top of base commission. It's economically different from commission, too: annual, backward-looking, and conditional, arriving four to six months after year-end, by which point the agency is already half a year into the next plan year.
§ 01 · The 10–20% ruleWhy it sets the multiple.
The working assumption in agency diligence is that contingency represents 10% to 20% of revenue for a well-performing book. Because it carries virtually no incremental cost, the revenue percentage understates its importance to profit — on an agency with a 25% EBITDA margin, a 15% contingency contribution can be 60% of total EBITDA. That concentration means small movements in contingency drive large movements in earnings. The valuation implication is direct: every multiple applied to EBITDA is implicitly a multiple applied to the contingency assumption baked into it, so a buyer who accepts the seller's trailing contingency at face value has let the seller set the multiple input as well as the price.
§ 02 · Why one year liesFour distortions.
| Distortion | What it does to a single year |
|---|---|
| Weather concentration | A low-catastrophe year can lift contingency 20–40% above normal |
| Book-mix shift | One-time line-of-business growth improves loss ratio non-repeatably |
| Program change | A carrier rewriting its formula favorably may not repeat next year |
| One-time push | Year-end binding, large new accounts — real volume, not repeatable |
Any of these can be in play in a given year; some years have all four working in the seller's favor, and those are the trailing-twelve-month snapshots that anchor overpaid acquisitions. The point isn't that the number is fake — the volume and the payment are real — it's that the repeatability isn't, and the price is paid against the repeatable run-rate, not the peak.
§ 03 · The three-year lookbackNormalize, then adjust.
The three-year lookback is the standard normalization. Pull three consecutive years of contingency statements by carrier — five where available — average the total, and segment by carrier to expose any trajectory that's rising, falling, or volatile, because the carrier-by-carrier story is usually clearer than the blended one. Then layer in three explicit adjustments: weather normalization replaces a catastrophe-distorted year with the average of the other two; one-time item exclusion strips program-launch bonuses, new-carrier onboarding incentives, and closing-year pushes; carrier program changes substitute an announced new formula for the historical one, since those announcements are knowable information any diligent buyer is tracking.
The adjusted three-year number moves EBITDA 5–15% on small-agency deals. On a $1M EBITDA business, a 10% normalization is a $100K adjustment — $700K of enterprise value at a 7× multiple. That's not marginal; it's the line between a priced deal and an overpriced one. The multiple stays; the input to the multiple is the negotiation.
§ 04 · The sustainability testWill the run-rate hold.
The lookback tells the historical story; sustainability tells the forward one, and three questions drive it. Will loss ratios hold? Contingency depends on continued loss-ratio performance, so any book-mix shift, underwriting change, or producer departure that could move loss ratios moves contingency. Will volume hold? Formulas reward volume tiers, so a concentration correction, a major account loss, or a rewrite to another carrier all threaten the qualifying tier — which is why the concentration review and the contingency review are tightly linked. Will the carrier program hold? Carriers occasionally pull back on contingency during hard-market cycles, and each major carrier's stated posture, often buried in appointment letters, informs the probability current programs continue. The sustainability-adjusted run-rate is the final EBITDA input — and one more detail belongs in the purchase agreement: unearned contingency from the pre-close plan year transfers only partially, since some carriers prorate, some reset, and some pay it out to the seller.
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Terminology on this shelf
- Contingency bonus
- Annual carrier profit-sharing calculated against premium volume and loss-ratio performance — 3–8% of written premium per carrier at tier.
- The 10–20% rule
- Aggregate contingency as a share of agency revenue for a healthy diversified book — and a far larger share of EBITDA.
- Three-year lookback
- The standard normalization — average three to five years by carrier to smooth weather, mix, and program volatility.
- Three explicit adjustments
- Weather normalization, one-time item exclusion, and carrier program change — the refinements that turn the lookback into a usable run-rate.
- Sustainability analysis
- The forward test on loss ratios, volume, and program posture that decides whether the run-rate continues.
- Partial transfer
- Eligibility transfers with the appointment, but pre-close unearned contingency may prorate, reset, or pay out to the seller.