Marzal Labs

Before the stamp goes on the slip

A Lloyd's syndicate cannot bind a risk just because the underwriter likes it. Between the broker's email and the syndicate stamp sit a series of checks, some set by law, some by Lloyd's, some by the managing agent. This page explains the four you asked about in depth, then maps every other pre-bind check, including pricing and exposure, and shows how the checks change across D&O, marine liability, marine war, property and cargo.

Prepared for Marzal Labs, September 2026. Explanatory only, not legal or compliance advice.

Pre-bind checklist

Each check mapped to the part of the MRC slip it relies on

Risk Details: Broker
TOBA in force?
Security Details
Underwriter authorised for this line?
Risk Details: Insured
Screened against sanctions lists?
Whole contract
Standard, complete, codable?
Fiscal and Regulatory
Licensed, taxed, right stamp?
Risk Details: Premium
Adequate against benchmark?
Risk Details: Limit
Within line size and aggregates?

How a syndicate is governed

A syndicate is capital backed by members; it has no staff of its own. A managing agent runs it: employs the underwriters, writes the business plan and operates the controls. Brokers bring risks; the Corporation of Lloyd's supervises how managing agents behave. Every pre-bind check exists because one of these three relationships needs evidence before capital is committed.

The rulebook has two layers. The Principles for doing business at Lloyd's set the fundamental responsibilities of every managing agent: 13 principles, each graded on a Maturity Matrix from Foundational to Advanced depending on how material the syndicate is. Beneath them, the older Minimum Standards still describe the control expectations in practical terms: MS2 for underwriting controls (authorities, pre-bind quality assurance, contract certainty) and MS3 for price and rate monitoring.

Broker

Places the risk, prepares the MRC slip, carries out its own client due diligence and acts as a conduit for further information.

Managing agent

Decides whether to write, at what price and line, and must prove the decision followed the syndicate business plan and its controls.

Lloyd's

Approves the business plan, sets standards, collects returns (pricing, exposure, RDS) and can restrict a syndicate that falls short.

TOBA check

Hard gate: no TOBA, no trade

A Terms of Business Agreement is the contract between the broker firm and the managing agent that governs how they deal with each other, before any individual risk is discussed. It sets roles and responsibilities, who holds premium and claims money and in what capacity, commission deduction, regulatory duties, data protection and financial crime obligations, and termination rights.

Why it exists
Without it the managing agent has no agreed basis for the broker holding its money or acting on its behalf. The market uses model forms produced by the LMA and IUA with LIIBA: a Risk Transfer TOBA (broker holds premium as agent of the insurer, so the risk of broker insolvency sits with the insurer) and a Non Risk Transfer TOBA (money held for the client). Both were updated in 2018 for GDPR and the Criminal Finances Act 2017.
Question it answers
Is the placing broker an entity we have a current, signed agreement with, on the right form, for this type of business?
Owner
Broker relations or delegated authority team maintains the register; underwriting operations applies it at submission.
Inputs
Broker organisation name, broker email domain, UMR (characters 2 to 5 carry the Lloyd's broker number), producing or sub-broker if a chain exists.
How it is done
  • Resolve the broker to one legal entity: names vary (Aon, Aon UK Limited, Aon Risk Solutions).
  • Check agreement status and dates, not just a yes/no flag: an "active" record past its expiry is a common error.
  • Check type fits the placement: RT versus NRT affects premium payment and credit control.
  • For chains, check the sub-broker is covered or that the Lloyd's broker has its own arrangements in place.
Outcomes
In force: proceed. Known broker, TOBA lapsed or suspended: hold, no quote or bind until renewed. Unknown broker: onboarding (KYC, FCA and Lloyd's broker status, TOBA execution).
Where it goes wrong
Group restructures (acquired brokers trading under old names), overseas producing brokers with no direct agreement, and TOBAs held in document folders rather than a queryable register.

Underwriter authority check

Routing gate: refer upward if outside authority

This check proves the person about to commit the syndicate is allowed to. Authority at Lloyd's is personal and written: each underwriter has terms of reference stating the classes, territories, maximum line and limit they may write, and anything beyond that must be escalated.

Why it exists
MS2 expects underwriters' authorities to be in writing, properly authorised, signed and reviewed annually, and risks outside an underwriter's authority to be escalated to someone with the appropriate level through a clearly defined process. Maximum line sizes must align with the approved Syndicate Business Forecast, with currency conversion at SBF rates.
Question it answers
Is this a recognised underwriter, for this class of business, and is the requested line and limit within their personal authority?
Owner
Underwriting management (nominated director, typically the CUO) sets authorities; underwriting operations or the workbench enforces them.
Inputs
Underwriter email, class of business, territory, 100% limit, proposed line %, currency and FX to the authority currency, lead or follow.
How it is done
  • Match on identity plus class, not identity alone: an underwriter can be authorised for marine liability but not energy liability.
  • Convert limit and line to the authority currency, then compare to the personal limit and the syndicate maximum line.
  • Check the account is active on the date of binding (leavers and secondments).
  • If the managing agent runs several syndicates or a company platform, apply its written allocation policy: MS2 expects objective criteria for allocating business between them.
Outcomes
Recognised and within authority: assign. Exceeds authority: referral with evidence of approval before bind. Not recognised for the class: route to class triage, not auto-decline.
Where it goes wrong
Authorities kept in PDFs, line checked but not limit, FX ignored, and referrals approved by email without being linked to the risk record.

Sanctions check

Hard gate: a true match stops the risk

Insurance is a financial service, so covering a designated person, paying their claim or even holding their premium can breach UK, US, EU or UN sanctions. Marine liability is particularly exposed: owners, charterers, terminal operators, cargo interests and vessels are all separately sanctionable.

Why it exists
Lloyd's sanctions due diligence guidance sets general principles managing agents should build into their business practices, recognising that due diligence will vary by class and method of acceptance. Brokers are a key source of screening information, but not the only one: the managing agent must screen for itself.
Question it answers
Is any party to this contract, or any location or activity it covers, subject to sanctions that would make providing cover unlawful or require a licence?
Owner
Compliance owns policy and dispositions; underwriting operations runs screening; the MLRO or sanctions officer decides true matches.
Inputs
Every named party (assured, co-assureds, reinsured, additional insureds), their country, vessels and IMO numbers where relevant, territories and trading areas, beneficial ownership where known.
How it is done
  • Screen names and countries through a list provider (for example LexisNexis Bridger, World-Check, Dow Jones) with fuzzy matching.
  • Resolve alerts: most are false positives; record who cleared each one and why.
  • Consider ownership: under OFAC's 50% rule, subsidiaries of designated parents can be caught even if not named.
  • Check high risk territories and trading nexus separately from the name screen.
  • Include a sanctions clause. LMA3100A (Sanctions Limitation Clause) replaced the title of LMA3100 in October 2023 because the clause suspends rather than excludes cover; LMA3200 is an alternative for contracts outside English or US law.
  • Re-screen at bind, on every endorsement adding parties, and before paying claims.
2026 change to note
Since 28 January 2026 the FCDO's UK Sanctions List is the only source of UK designations; the OFSI Consolidated List is closed, and systems keyed on the OFSI Group ID need the UK list's Unique ID instead.
Outcomes
True match: stop, escalate, no quote. Possible match or licensed activity: hold for compliance. Territory nexus: refer. Clear: proceed, and re-screen at bind.
Where it goes wrong
Screening only the first named assured, relying solely on a clause, and deviating from model sanctions wording without compliance review, which Lloyd's specifically cautions against.

Standardisation check

Data gate: nothing downstream works without it

This is less a single rule than the discipline that makes every other check possible. Submissions arrive as free-text slips, spreadsheets and emails. Standardisation turns them into structured, coded data: the same field names, controlled values and codes that pricing, exposure, tax, regulatory reporting and claims all rely on.

Why it exists
The London market's data model is the Core Data Record (CDR), which holds the transactional data needed at written line for premium settlement, claims matching, tax, and regulatory reporting. It aligns with ACORD standards and with the MRC v3 slip format; CDR v3.2 and the refreshed MRC v3 were published by the London Market Group Data Council in March 2023.
Status in 2026
In March 2026 Lloyd's transitioned away from its Blueprint Two programme, but kept process simplification and common data standards as part of its new strategy. The re-platforming timetable changed; the case for capturing clean, standard data at the point of underwriting did not.
Question it answers
Is the submission complete, internally consistent and expressed in the codes the syndicate and market use, so that decisions and returns are reliable?
What gets standardised
  • Parties: legal names, domicile as ISO 3166 codes, broker entity.
  • Contract: inception and expiry dates, insurance or reinsurance, lead or follow, UMR format.
  • Money: currency as ISO 4217, limits, excesses, deductibles, brokerage as numbers not prose.
  • Classification: Lloyd's risk codes, class and sub-class, SIC or NAICS of the assured, coverage vocabulary.
  • Location: regulatory risk location and territory lists that drive licensing and tax.
  • Wording: clause references to market model wordings rather than bespoke text where possible.
How it is done
Extraction (increasingly AI-assisted) into a canonical schema, normalisation to controlled lists, validation rules (end date after start, currencies valid, limit greater than zero), and a confidence score that sends uncertain fields to a human.
Outcomes
Complete and valid: feed checks. Missing mandatory data: query the broker before quoting. Not a stop in itself, but a risk cannot pass PBQA or be reported correctly without it.
Where it goes wrong
Free-text territories ("worldwide ex USA, Canada") that nobody expands, currencies inferred from symbols, and codes assigned after bind by a separate team.

The full pre-bind journey

Yes, there are several more checks. Grouped by the question each stage answers, in roughly the order a well-run syndicate applies them. Rows marked with a bar are the four covered above.

Stage 1 May we engage at all?

Cheap, fast, binary checks that should happen before an underwriter spends time on the risk.

CheckWhat it establishesBasisGate
Sanctions and territoryNo designated party, location or activity; high risk territory nexus identified.UK / US / EU / UN law; Lloyd's sanctions guidanceStop / hold
TOBAAgreement in force with the placing broker.LMA / IUA / LIIBA model TOBAsHold
Licensing, tax and stampLloyd's may write this risk location and class; which premium taxes and local clauses apply; whether the risk must go on Lloyd's Europe (LIC) paper.Crystal+ and Risk Locator Tool; EEA risks written through Lloyd's Insurance Company S.A.Stop / reroute
Underwriter authorityRecognised underwriter for the class; within personal limits.MS2 underwriting controlsRefer
Appetite and planClass, territory and size sit inside the syndicate business plan and underwriting guidelines, including any exclusions (for example ESG or war-exposed trades).SBF; Principles on business planningDecline / refer

Stage 2 Do we understand the risk?

CheckWhat it establishesBasisGate
Standardisation and completenessStructured, coded data; mandatory fields present.CDR, MRC v3, ACORD, Lloyd's risk codesQuery broker
Entity and financial profileAssured correctly identified; financial strength, listing, industry and ownership understood (S&P, D&B, Companies House).Underwriting guidelines; sanctions ownership due diligenceAdvisory
Loss historyLoss runs for 5 or more years, open claims, large loss narrative; expiring terms for renewals.Pricing methodology (MS3)Query / load price
Risk qualityOperations, vessels, equipment, contracts (for example indemnity and hold-harmless terms in port or terminal agreements), surveys and risk engineering.Class underwriting guidelinesAdvisory
ConductCustomer type; vulnerability or fair value considerations where retail or SME customers are in the chain.FCA conduct rules; Principles on customer outcomesRefer if flagged

Stage 3 Is it worth writing, and can we afford the loss?

CheckWhat it establishesBasisGate
Pricing adequacyOffered premium versus technical and benchmark price; margin within referral thresholds.MS3 price and rate monitoring; Principle 1 underwriting profitabilityRefer below threshold
Rate change (renewals)Risk adjusted rate change against the expiring policy, recorded per risk.MS3; RARC reporting to Lloyd'sRecord
Line size and limitLine within the SBF maximum for the class and currency.MS2; SBFRefer
Exposure and aggregationContribution to accumulations (port, terminal, region, peril, clash across classes) and to Realistic Disaster Scenario losses.Principles on catastrophe risk; RDS returnsRefer / reduce line
Reinsurance fitRisk is protected by outwards reinsurance, or retention is acceptable; no excluded classes or territories.Principles on outwards reinsuranceRefer

Stage 4 Is the contract right?

CheckWhat it establishesBasisGate
Pre-bind quality assurance (PBQA)Slip complete and unambiguous: parties, period, limits, premium, security, subjectivities, choice of law, claims agreement parties. Leaders review every contract; followers apply their own risk-based controls.MS2 PBQA and contract certaintyHold until fixed
Wording and mandatory clausesSanctions clause, cyber exposure made clear (affirmed or excluded), war and terrorism provisions, market model wordings versus bespoke changes.LMA model clauses; Lloyd's market bulletinsHold
SubjectivitiesConditions to be met before or after inception (surveys, warranties, information) and who tracks them.Contract certaintyTrack

Stage 5 Final gates at bind

CheckWhat it establishesBasisGate
Referral and peer reviewApprovals captured for anything outside authority, price or appetite; peer review for defined criteria.MS2 peer and independent reviewHold
Re-screen sanctionsNothing has changed since quote (new designations happen weekly).Lloyd's sanctions guidanceStop
Firm order and stampFirm order received and agreed, line written, correct syndicate or LIC stamp applied, UMR and references recorded.Contract certainty; licensingBind
Data captureBound data entered for premium processing, tax and regulatory reporting.CDR; Lloyd's returnsPost-bind

Pricing in detail

Lloyd's does not tell a syndicate what to charge; it requires the syndicate to know whether what it charges is adequate, consistently and per risk. MS3 expects the pricing calculation to be recorded for each risk, the gap between benchmark and actual price to be monitored at risk, risk code and class level, and renewal pricing to be tracked against prior periods. Its guidance also covers how model output should be interpreted and when a risk must be escalated for a second opinion.

Three numbers do most of the work:

Technical price
Expected loss plus loadings. Current best practice includes internal expenses, acquisition cost, reinsurance cost and cost of capital, with capital loaded more heavily on volatile excess layers.
Benchmark price
The premium that would deliver the business-plan loss ratio. Comparing benchmark to achieved price, with the plan loss ratio, gives the ultimate loss ratio at which the risk was actually written.
RARC
Risk adjusted rate change on renewals: the price movement after stripping out changes in exposure, limits, deductibles and terms. When RARC falls below plan, a syndicate typically either writes less or accepts weaker price adequacy, which Lloyd's watches against the approved plan.
Pre-bind use
The check is a threshold: price adequacy below a set percentage of benchmark triggers referral; pricing must be recorded before bind so it can be reported, not reconstructed afterwards.

Exposure in detail

Exposure management asks what this risk adds to the losses the syndicate could suffer from one event, not just from this policy. Managing agents are expected to keep catastrophe risk from natural and non-natural perils under appropriate control in line with their strategy.

Lloyd's tests this through Realistic Disaster Scenarios: compulsory scenarios all syndicates report, plus two events each syndicate defines for its own material exposures. In-force RDS losses are submitted twice a year, and an anticipated breach of plan or franchise guidelines must be notified to Lloyd's Exposure Management. The scenario specifications name specific major ports that managing agents should consider, which is directly relevant to ports and terminals liability.

For a marine liability submission, the pre-bind exposure check typically covers:

Accumulation
Other policies at the same port, terminal, shipyard or offshore field; a single explosion or collision can trigger stevedore, wharfinger, charterer and property policies at once.
Clash
The same event hitting marine liability, cargo, hull, energy and property books, and the same assured appearing on several layers.
Scenario contribution
Marginal impact on RDS and internal scenarios (major port event, cyber, pollution).
Limits versus appetite
Line and limit compared to class maximums and per-event risk appetite; reinsurance recoveries and retentions after the event.
Pre-bind use
A breach of an aggregate limit is a referral or a reduced line, and the exposure record must exist at bind so it counts in the next return.

Business plan by class of business

Every syndicate writes to a Syndicate Business Forecast (SBF) approved by Lloyd's. The approval cycle has to be complete by mid-November for underwriting starting on 1 January, and Lloyd's sets mandatory plan exchange rates for USD, CAD, EUR, AUD and other currencies. Once approved, managing agents must seek advance approval for material deviations from the plan and review adherence to it at least quarterly.

That is why the first underwriting question on any submission is not "is it a good risk?" but "is it inside our plan for this class?" The plan sets the same levers for every class; what changes is which checks carry the weight.

Volume
Planned gross written premium and number of risks per class and sub-class, split by distribution channel (open market, lineslip, binder).
Profitability
Plan loss ratio, benchmark price and assumed risk adjusted rate change; the pricing check measures each risk against these.
Line and limit
Maximum line and limit per class in plan currencies at plan FX; the authority check enforces them.
Appetite
Risk codes, territories, sub-classes and exclusions the plan allows. Lloyd's risk code guidance for the 2027 year of account adds new codes for planning.
Exposure budget
Aggregates and disaster-scenario limits by zone, port, area or systemic event.
Reinsurance
Outwards protection assumed in the plan; a risk outside the treaty changes its net cost.

D&O

Directors and officers liability protects individual directors (Side A), reimburses the company for indemnifying them (Side B) and, for listed companies, covers the entity for securities claims (Side C). Losses are driven by litigation and insolvency rather than physical events, so the plan is about which companies, which layers and how much US securities exposure the syndicate accepts.

Sub-classesPublic listed, private, financial institutions, Side A DIC
Plan leversShare of US-listed risks; primary versus excess; max limit per tower
Pricing basisRate per million by attachment; retention
Main accumulationSame group across towers and years; systemic events

Class-specific pre-bind checks

Class checkWhy it matters for this classData neededGate
Listing and securities exposureSecurities class actions drive severity. Filings dropped in 2025 while median settlements rose 21% to $17m, so frequency alone understates the risk.Exchange, ticker, market cap, ADR programme, IPO or de-SPAC dateRefer if outside plan
Financial conditionLarge bankruptcies are adding D&O claims tied to governance and financial oversight, so underwriters are looking harder at financial health and board practices.Altman Z-score, rating, going concern, debt maturities, cash runwayRefer / decline distressed
Sector and emerging riskAI-related securities filings reached 13 in the first half of 2026, against 14 for the whole of 2025. Biotech, crypto and private credit carry similar disclosure risk.SIC, disclosures on AI, clinical trial phase, crypto holdingsRefer
Litigation and regulatory historyPrior or pending litigation, regulator investigations and restatements are usually excluded or priced; missing disclosure is a coverage dispute waiting to happen.Litigation schedule, SEC or FCA matters, warranty or no-known-circumstances letterHold until received
TransactionsM&A, IPO, SPAC and spin-offs change who is insured and trigger run-off or change-in-control provisions.Deal pipeline, run-off requirementsRefer
Programme structureAttachment point, follow-form terms, Side A/B/C split, retentions, continuity and prior/pending dates determine what the line really pays.Tower schedule, primary wording, retro and continuity datesHold for PBQA
AggregationThe same insured can sit on several layers or years; a market crash or systemic AI event can hit D&O, FI and PI together.Group entity map, other lines written on the insuredRefer if above limit

Plan shapes describe typical structures, not any real syndicate's approved plan.

How the core checks shift by class

Same checks, different weight. Critical means the check is where most risks in that class fail or get referred.

CheckD&OMarine LiabilityMarine WarPropertyCargo
SanctionsHighEntity, major shareholders, directors where namedCriticalVessels and cargo counterpartiesCriticalVessels, ownership, AIS behaviour, price capStandardEntity and locationsCriticalParties, origin, destination, vessel
TOBAStandardStandardStandardStandard; watch overseas producing brokersStandardStandard; short-notice renewalsHighBinders and coverholder chainsHighOpen covers via forwarders and local agents
Underwriter authorityHighTower limit and US listing authorityStandardLimit and US exposureCriticalListed-area and AP authorityHighLocation limit and cat budget authorityStandardPer-conveyance and per-location limits
StandardisationStandardFinancial data, listing, tower scheduleHighExposure statistics, locationsCriticalIMO numbers, voyages, areasCriticalGeocoded SOV, COPEHighDeclarations, locations, commodity codes
Licensing and taxHighUS, EEA and local D&O rulesHighMultiple risk locationsStandardStandardCriticalSurplus lines, LIC, local taxHighWhere cargo is insured and delivered
PricingCriticalILF by attachment; SCA frequency and severityHighThroughput and loss historyCriticalAdditional premium by area, daily repricingCriticalCat load plus attritionalHighSoft market rate monitoring
ExposureHighSystemic and tower aggregationHighPort accumulationCriticalArea accumulation, detentionCriticalNat cat zones and RDSHighWarehouse and port accumulation
PBQA and wordingCriticalSide A/B/C, continuity, exclusionsHighContract and limitation termsCriticalNotice of cancellation, listed areas, cyber warHighDeductibles, cyber and CD clausesHighICC A/B/C, classification, war and strikes

Sources

  1. Lloyd's, Principles for doing business at Lloyd's and Principles and Maturity Matrix (PDF)
  2. Lloyd's Minimum Standards MS2, Underwriting and Controls
  3. Lloyd's Minimum Standards MS3, Price and Rate Monitoring
  4. IUA, model TOBAs with LIIBA and LMA/LIIBA Model Risk Transfer TOBA 2018
  5. Lloyd's, Sanctions due diligence guidance and Market Bulletin Y4832 on sanctions clauses
  6. LMA, LMA3100A and LMA3200 sanctions clauses (October 2023)
  7. GOV.UK, The UK Sanctions List
  8. Lloyd's, Core Data Record and Lloyd's, Blueprint Two (2026 update)
  9. Lloyd's, Risk Locator Tool and Lloyd's, tax support
  10. Lloyd's, Realistic Disaster Scenarios and 2026 exposure management returns
  11. Lloyd's, PMDR Underwriters' Guide (benchmark price, RARC) and hyperexponential on the Pricing Maturity Matrix
  12. Lloyd's, Syndicate Business Forecast instructions and MS1 Business Planning and Portfolio Management
  13. Lloyd's, Risk codes guidance for the 2027 year of account
  14. JWLA-034 summary (NNPC Marine), JWLA-033 circular (LMA) and Alandia notice on JWLA-034
  15. Windward, Marine insurance in 2026 and LMA price cap clauses LMA5650 / LMA5651
  16. PropertyCasualty360, D&O market 2026 and Business Insurance, D&O renewals July 2026
  17. hyperexponential, Marine cargo pricing and WTW, Marine cargo spring 2026

Requirements change through market bulletins; confirm current versions on lloyds.com and Crystal+ before building controls on this summary.