What commission leakage is
Commission leakage is the gap between the commission that should have been earned under executed agreements and what was actually paid, collected, and recorded. It is not a below-market negotiation, and it is not a deliberate rate variation by line, tier, or performance. It is the unintentional erosion of earned revenue through error, system failure, process breakdown, or contractual ambiguity.
That distinction matters commercially, because leakage is recoverable in a way a bad negotiation is not. Most of it sits in a grey zone where the receiving organisation does not know it is happening: the carrier applies a superseded rate, the bordereau omits a mid-term endorsement, the profit share calculation excludes a line that should be in it. Nobody deliberately short-pays. The money leaks because the systems and processes involved are not reliable enough to prevent it.
It rarely announces itself. It shows up as unexplained differences on carrier statements, as contingent settlements below expectation, as endorsement commissions that were never re-rated. Individually each discrepancy looks minor. Across thousands of policies, dozens of trading partners, and multiple lines of business, it routinely consumes between 1% and 3% of gross earned commission.
A taxonomy of leakage
Eight patterns account for most of what firms find when they go looking. Naming them precisely matters, because each has a different root cause and a different remedy.
| Leakage type | Description and root cause |
|---|---|
| Base rate errors | Carrier systems apply an incorrect or superseded commission rate. Common after TOBA amendments, product refiles, or system migrations. Often undetected for multiple policy periods. |
| Override and hierarchy errors | Multi-tier chains — carrier, wholesaler, programme administrator, retail producer — introduce compounding calculation risk at every handoff. Each layer risks rounding errors, rate misapplication, or missing tier flags. |
| Endorsement and mid-term adjustments | Return premiums, endorsements, and reinstatements trigger recalculation obligations. Systems that do not re-run commission logic on every transaction leave original commission in place against a changed premium base. |
| Contingent and profit share miscalculation | Contingent commissions can add 2% to 5% to agency revenue but depend on accurate cumulative loss ratio and volume tracking. Inaccurate loss data or inconsistent premium counting routinely understates the pool. |
| Chargeback errors | Carriers sometimes reclaim commission outside the contractual window or apply sliding scales incorrectly. Agencies that do not model chargeback obligations carry unplanned cash-flow exposure. |
| Bordereaux omissions and timing gaps | Policies bound late in a reporting cycle, endorsements processed after submission cutoff, or plain data entry errors create omissions that may not surface for one or more reporting cycles. |
| Currency and FX application | Multi-currency programmes that apply a conversion rate differing from the agreed FX hierarchy silently alter the sterling or dollar value of a commission payment. |
| CASS-impacted flows (UK) | Errors extracting commission from client money accounts — over-extraction is a CASS breach, under-extraction strands firm money in client funds — carry direct regulatory consequence under FCA CASS 5. |
What leakage really costs
Most firms focus on the revenue loss. The more significant commercial damage usually sits in the layers around the calculation itself.
| Cost category | What it looks like in practice | Commercial effect |
|---|---|---|
| Revenue loss | Underpaid base commission, missed overrides, omitted endorsement recalculations, inaccurate contingent settlements | Lower EBITDA and missed recoveries |
| Operational overhead | Manual statement matching, spreadsheet triage, late exception handling, repeated back-and-forth with counterparties | High finance cost and slower month-end close |
| Compliance exposure | Weak CASS extraction evidence, incomplete remuneration records for IDD disclosure, poor audit trail | Greater regulatory and audit risk |
| Relationship damage | Producer disputes, broker-carrier friction, MGA-capacity disagreements, client challenge over remuneration disclosure | Reduced trust and weaker retention |
| Strategic drag | Low confidence in commission data during M&A, programme reviews, partner negotiations, or profitability analysis | Lower valuation confidence and slower decisions |
Leakage is rarely just a commission engine problem. It is a control architecture problem spanning contracts, source data, transaction processing, accounting, reconciliation, and reporting. Every weak layer creates exposure in all the others.
Where the operating model breaks
Across brokers, MGAs, and carriers, the same four failure points recur. They determine where a remedy has to focus.
1. Contract logic is not system logic
Many firms believe their commission model is defined in contracts, TOBAs, binders, or side letters. In practice the live calculation rules sit inside spreadsheets, local workarounds, statement templates, or a handful of employees’ tacit knowledge. Once terms change — through endorsements, product additions, override amendments, or new distribution hierarchies — the operational model drifts away from the contractual model, and leakage begins to accumulate.
The gap widens fastest in delegated authority and programme business. Lloyd’s Coverholder Reporting Standards define what must be reported, and the Delegated Data Manager platform launched in 2018 to standardise bordereaux collection, yet the dominant approach across the market remains manual. Lloyd’s Chief Underwriting Officer Rachel Turk called it "bizarre" at the Q3 2024 market briefing that syndicates are still receiving bordereau data that is out of date.
2. Reconciliation is too late
Monthly reconciliation is a lagging indicator, not a control strategy. By the time a variance is identified the transactions are old, the premium base may have changed, and recovery becomes slower, more political, and less likely to succeed in full. Practitioners consistently report that leakage older than six months is rarely recovered in full.
For carriers managing multiple delegated authority partners, manual reconciliation cycles routinely consume two to four weeks per month. Finance teams work systematically on historical data while current transactions accumulate unchecked.
3. Bordereaux quality drives downstream failure
In delegated authority and programme business, bordereaux errors do not just distort premium and exposure reporting. They simultaneously contaminate commission calculations, cash flows, claims monitoring, and oversight evidence. A single weak data feed from one coverholder can create several forms of leakage at once.
The exposure is not hypothetical. DA Strategy’s delegated authority debt recovery work has documented individual managing agents with USD 10 million or more in predicted debt locked in their systems through data and credit control problems. In one case a mid-term signing change that had not been reflected in the correct repository understated the risk premium position by over $1.5 million.
4. Finance, compliance, and operations solve different versions of the same problem
Finance wants accurate statements and shorter close cycles. Compliance wants a defensible audit trail. Operations wants fewer exceptions and disputes. Without a shared data model and shared workflow, each function builds its own controls and its own reconciliations. That raises effort without eliminating root cause — and it creates three separate gaps in the evidence chain, which regulators and auditors will find independently.
The scale of the exposure
The UK market
The FCA’s 2024 Retail Mediation Activities Return, covering roughly 12,000 intermediary firms, shows revenue from non-investment insurance distribution growing 6.6% to £26.1 billion. Commission accounts for 82.6% of it. At that concentration, commission accuracy is not a peripheral operational concern — it is the primary financial mechanism of the UK distribution market.
Lloyd’s of London wrote £55.5 billion in GWP in 2024, up 6.5% on 2023, with a combined ratio of 86.9%. Delegated authority accounted for roughly 39% of gross written premium. Oxbow Partners analysis shows DA business at Lloyd’s more than doubled from £10.4 billion in 2018 to £22.1 billion in 2023, with projections that it will exceed 45% of market premium by 2027. Meanwhile the number of active UK intermediary firms fell from 6,637 in 2015 to 5,516 in 2024 — a 16.9% decline. In a consolidating market, commission data quality is a direct input to valuation.
The US market
The US MGA sector grew from $51.4 billion in direct premiums written in 2020 to $90.4 billion in 2024 — 90% expansion in five years against broader P&C growth of 49%. Conning’s 2025 MGA study recorded $114.1 billion in DPW for 2024, growing 16% year on year. MGAs generate EBITDA margins of 20% to 30% on commission-based revenue with P&C renewal rates approaching 90%. Those margins are exactly why leakage matters: every basis point of erosion falls straight to the bottom line.
Fronting carriers reported $29.1 billion in dedicated DPW in 2024, around a third of MGA-sourced premium, with the ten largest accounting for roughly 69% of it. Fronting adds commission complexity: the carrier receives gross premium, cedes most underwriting risk, retains a fronting fee, and the MGA’s commission calculation must reflect that structure correctly at every transaction and every amendment.
How the problem presents by segment
London market brokers and Lloyd’s coverholders
The UK wholesale and London market operates through 381 Lloyd’s registered brokers, 51 managing agents, and approximately 2,950 approved coverholders globally. Commission structures here are among the most complex in global distribution — subscription placements across multiple capacity providers at different line sizes, multi-currency settlement, CASS 5 client money obligations, and IDD disclosure requirements all applying at once.
- Subscription complexity. Commission must be calculated and tracked at slip level across all carriers and their respective shares. Any error at slip level propagates through the bordereaux, the CASS extraction, and the accounting records.
- CASS 5 extraction. Commission must be extracted from client money accounts accurately and promptly, with evidence that stands up to audit.
- Disclosure. Expanded intermediary remuneration disclosure obligations are harder to satisfy without granular, auditable commission records.
- Multi-currency FX. Commission calculated in USD and extracted from a GBP client money account must use the FX hierarchy agreed in the binder. Misapplication creates both financial leakage and potential CASS misstatement.
UK retail and commercial brokers
Of the £26.1 billion in UK non-investment distribution revenue in 2024, roughly £21.6 billion came from commission. The FCA’s supervisory priorities for insurance brokers include continued scrutiny of operational resilience — specifically whether firms can demonstrate that important business services withstand disruption. Commission reconciliation that depends on manual spreadsheet processes fails that test directly.
IDD compounds the pressure. Under ICOBS 4.3, UK brokers must notify clients of the nature and basis of remuneration before concluding a contract. A broker who cannot determine, at the point of placement, what total remuneration they will receive across base, override, and contingent structures cannot make that disclosure reliably.
US MGAs and programme administrators
- Fronting relationships. Around 20% of total MGA premium is now backed by fronting carriers, and the fee structure must be reflected correctly at every transaction and amendment.
- Bordereaux variance. In a $300 million programme, a 0.5% premium reporting variance misreports $1.5 million annually before commission is calculated on that base.
- Contingent entitlement. With contingent commissions contributing 2% to 5% of total premium to agency revenue, the accuracy of cumulative loss data determines the size of the pool. MGAs with inadequate loss tracking systematically understate their entitlement and lack the data to dispute settlement figures.
- Rate currency. In a market growing 12% to 15% annually with frequent product launches, rate tables need continuous maintenance. Rates correct at programme inception become incorrect when a product is refiled, a loss tier changes, or a territory is added.
Carriers and capacity providers
From the carrier’s side, leakage typically shows up as overpayment — and carriers who pay more commission than their agreements require do not usually recover the excess. S&P Global Ratings noted in September 2025 that rapid expansion of MGA programmes requires careful governance and oversight to maintain underwriting discipline. Commission accuracy is part of that governance: a carrier that cannot verify the correct commission on every bordereau cannot credibly claim adequate programme oversight.
The reinsurance cascade compounds it. Ceded premium reporting derives from the same bordereaux data that drives commission. A 1% premium variance in a £500 million delegated portfolio distorts treaty reporting, and can affect cession amounts, loss ratios, and reinsurance settlement timing simultaneously.
Controls, platform, and services
Preventing recurrence — rather than just improving visibility — takes three connected layers. Firms that address only one typically find the problem returns.
Controls come first
A governed source of truth for commission agreements, version control over rate changes, defined treatment for endorsements and cancellations, documented contingent methodologies, maker-checker approval for rule changes, and exception reporting tied to accountable owners.
This layer has to come first because technology cannot compensate for ambiguous commercial terms or missing governance. If a firm does not know which rate is current, which hierarchy applies, or which contingent formula is contractually valid, no calculation engine can produce reliable outcomes.
Then the platform
A unified platform connects policy, premium, commission, cash, and accounting events into one auditable operating model — maintaining counterparty agreements, calculating multi-tier commission, re-rating adjustments, reconciling expected against received commission, managing disputes, and linking commission movements to the general ledger and client money workflows. The objective is to move from after-the-fact reconciliation toward continuous commission assurance, where most transactions process automatically and exceptions surface early enough to recover value.
| Capability | Why it matters | Commercial value |
|---|---|---|
| Agreement and rate management | Prevents stale terms and undocumented overrides from driving silent errors | Protects revenue at source |
| Event-driven commission calculation | Re-rates endorsements, cancellations, reinstatements, audits, and FX changes as transactions occur | Fewer missed adjustments and chargeback disputes |
| Multi-tier hierarchy support | Handles wholesaler, MGA, programme administrator, producer, and carrier structures consistently | Cuts split and override leakage |
| Bordereaux ingestion and validation | Detects data quality issues before they flow into premium, commission, and cash workflows | Better delegated authority control and capacity provider confidence |
| Expected-versus-actual reconciliation | Matches entitlement to statements and cash at transaction level | Faster recovery, shorter close cycles |
| Client money and fiduciary workflow | Links commission extraction to client money accounts and ledger evidence | Stronger compliance and audit readiness |
| Dispute and exception management | Routes issues to accountable teams with supporting evidence | Less manual chasing, faster resolution |
| Executive reporting | Tracks leakage, recoveries, ageing, dispute trends, and partner-level variance | Makes leakage a managed metric, not a hidden one |
And the services around it
Most firms do not fail for want of software. They fail because agreements are fragmented, reference data is inconsistent, historic rules are undocumented, and ownership of commission accuracy is spread across finance, broking, compliance, delegated authority, and IT with no clear accountability. A commission integrity programme therefore needs agreement rationalisation, data mapping, control design, migration planning, and process redesign. Post go-live governance matters as much as the implementation: without it the programme reverts to project mode and the controls degrade.
A practical delivery model
The credible approach is not one large implementation. It is a phased programme that builds confidence at each stage and aligns investment to demonstrable recovery.
| Phase | Activity | What it produces |
|---|---|---|
| 1 — Diagnostic | Identify active agreement types, estimate revenue at risk, map commission touchpoints, review bordereaux and statement flows, assess reconciliation effort, document where fiduciary evidence depends on manual workarounds | A clear picture of exposure and priority, with a quantified business case |
| 2 — Control design | Define rule governance, approval workflows, exception categories, ownership by function, reporting requirements, and connection points between commission processing, accounting, delegated authority operations, and compliance | A target operating model technology can be configured against rather than imposed on top of |
| 3 — Platform configuration | Configure around real commission structures: agreement capture, hierarchy logic, bordereaux ingestion, reconciliation, dispute workflow, ledger integration | An environment where most transactions process automatically and exceptions surface with context |
| 4 — Run and improve | Track leakage metrics, recovery rates, exception ageing, rule change discipline, and partner-level variance as standing management information | Commission integrity as a permanent operating standard, not a project |
What to do next
The firms most exposed are not necessarily those with the weakest growth. They are the ones whose operational infrastructure has not kept pace with the complexity of their commission models and the scrutiny now applied to them. Five steps are specific enough to start this quarter.
- Quantify exposure. Estimate how much commission-rich revenue flows through manual or weakly controlled processes. Even a rough figure from reconciliation effort and exception volume beats nothing — you cannot build a business case without a number.
- Audit live agreements. Identify where commission terms, hierarchies, and contingent formulas are maintained outside governed systems. This is the control gap; without closing it, no calculation engine produces reliable output.
- Measure the real cost of reconciliation. Cycle time, aged exceptions, producer disputes, unrecovered variances. Most firms underestimate this badly — the operational cost often exceeds the revenue impact in finance hours alone.
- Test fiduciary and disclosure readiness. Ask whether the firm can evidence each material commission movement end to end. The FCA’s own data shows a 65% average shortfall in safeguarded funds at failed firms between 2018 and 2023.
- Build the business case as a programme. Controls, platform, and services together — not isolated point fixes. Point fixes improve visibility without eliminating root cause.
The strongest position is not to calculate commissions better. It is to convert commission from a fragmented, manual, disputed process into a governed revenue operation — with auditable controls, faster recovery, and data that holds up in partner negotiations, regulatory conversations, and M&A.