What is insurance due diligence?

Insurance due diligence is the buy-side review of the target's insurance program: policy inventory and limits, claims history, exclusions and retentions, D&O/E&O/cyber adequacy, certificates of insurance, loss control, and how risk transfers at close under SPA insurance reps and buyer program placement.

What documents are critical in insurance due diligence?

Core packs typically include a policy schedule, full policies and endorsements for the last 3-5 years, loss runs / claims triangles, COIs for material contracts, broker letters, actuarial or loss-control reports, D&O/E&O/cyber applications, and any R&W or representations-and-warranties insurance bind materials.

How long does insurance due diligence take?

A focused middle-market insurance review often runs 1-3 weeks once loss runs and policies are produced. Complex multi-line, multi-jurisdiction, or claims-heavy targets take longer, especially when tail coverage and D&O run-off must be priced.

How much does traditional insurance due diligence cost?

Broker diligence fees plus specialty counsel commonly range from roughly $10,000 to $50,000+ for a middle-market program review, higher for multi-national towers or heavy claims. R&W insurance premiums are separate deal costs. Specialist brokers and counsel own formal opinions and placements.

What are common insurance deal-killers?

Common deal-killers include open catastrophic claims without reserve credibility, material uninsured exposures (cyber, product, professional), non-renewal or cancel notices, missing required COIs under key contracts, and D&O / E&O limits that cannot support a change-of-control or go-forward risk profile.

A loss run is the carrier's record of claims for a policy period: dates, reserve, paid, status, and often cause codes. Buyers use multi-year loss runs to judge frequency, severity, reserve quality, and whether premiums or retentions will reprice after close.

Should insurance diligence start before LOI?

Yes for a light public screen: sector claim patterns, known litigation that implies coverage stress, regulatory actions, cyber incidents in news, and whether the business model depends on hard-to-place lines. Full policies, loss runs, and applications usually ramp after LOI under the data room.

Can a public-info first-pass help before hiring insurance specialists?

Yes for triage. A structured public-information pack can flag litigation and regulatory signals, cyber/privacy incidents, product-liability headlines, and sector risk patterns before you fund full broker and specialty counsel scopes. It is screening research, not a coverage opinion, broker placement, or legal advice.

Insurance Due Diligence: Coverage, Claims & Risk Transfer for PE & M&A

Insurance / risk-transfer workstream

Insurance pillars

Checklist items

$10K+

Specialist start

$49

First-pass pack

What insurance due diligence covers

Insurance due diligence is the risk-transfer workstream inside a broader deal. It is not only "do they have a GL policy?" For PE and strategic buyers, insurance DD answers: Are known losses funded? Are material risks insured or consciously retained? Will premiums, retentions, and required coverages survive change of control? What must the buyer place on day one?

Scope expands for product companies, professional services, healthcare, construction, transportation, fintech, and any business with cyber concentration, multi-state employment, or contractual insurance requirements that act as de facto licenses to operate. Light SaaS businesses still need D&O, cyber, E&O, and COI discipline on enterprise customers.

Six pillars of insurance diligence

Pillar	What you prove	Typical owners
1. Program inventory	Lines, limits, carriers, retentions, term dates, named insureds	Broker + risk manager
2. Claims & loss runs	Frequency, severity, open reserves, development, recoveries	Broker + actuary (if heavy)
3. Coverage quality	Exclusions, endorsements, sublimits, occurrence vs claims-made	Insurance counsel + broker
4. Specialty lines	D&O, E&O/professional, cyber, product, EPL, auto, WC, pollution	Specialty brokers
5. Contracts & COIs	Customer/supplier insurance requirements, certificates, additional insured	Legal + risk
6. Close & go-forward	Run-off/tail, R&W option, buyer tower, SPA insurance reps	Deal counsel + buyer broker

When each stage runs

Stage	Typical work	Access needed	Decision use
Pre-LOI screen	Public litigation, cyber incidents, sector claim patterns, news on non-renewals	Public only	Kill or price insurance risk early
Post-LOI data room	Policy schedule, full forms, 3-5 year loss runs, broker letter	VDR	Confirm underwriting; plan tail/R&W
Specialty deep dive	D&O/cyber/product applications, large open claims files	Counsel/broker calls	Structure indemnities and holdbacks
Pre-close / day-1	Bind go-forward tower, tail quotes, COI handoff, SPA schedules	Placement authority	Fund path + ops continuity

Cost reality: specialist insurance DD vs first-pass screen

Traditional insurance diligence (broker review + specialty counsel) often starts around $10K–$50K+ for a middle-market program and scales with multi-line towers and open claims. A structured public-information pack at $49 (or $39.20 with DI20-WELCOME) helps deal teams triage insurance-heavy targets before funding full specialty scopes.

Order first-pass $39.20 → See sample report

Red flags (deal-killer / high / watch)

Severity	Signal	Why it matters
Deal-killer	Open catastrophic claim with thin reserves / disputed coverage	Balance-sheet hole; SPA indemnity fight
Deal-killer	Material uninsured cyber or product exposure after incident history	Uncapped post-close loss
Deal-killer	Non-renewal / cancel mid-process with no market path	Cannot operate or finance
High	Claims-made professional/D&O without funded tail plan	Gap at close; seller pushback
High	Key customer contracts require limits target cannot buy	Revenue concentration risk
High	Workers' comp or auto loss ratio reprice signal	EBITDA leakage post-close
Watch	Stale COIs or wrong additional-insured language	Usually fixable admin risk
Watch	High deductibles with thin captive/collateral story	Working-capital and cash timing

Cost and timeline comparison

Approach	Typical cost	Timeline	Best use
Public first-pass pack	$49 / target	Minutes to same day	Screen many names before LOI
Broker program review	~$5K–$25K	1–2 weeks	Standard middle-market tower
Specialty counsel + deep claims	$15K–$50K+	2–4 weeks	Heavy claims, multi-national, product/cyber
R&W insurance process	Premium % of limit (deal-specific)	Parallel to confirmatory	Risk transfer on reps package

50-point insurance due diligence checklist

Use as a buyer workplan. Tag items Deal-Killer / High / Watch as evidence arrives. Groups below mirror how deal teams staff the insurance workstream.

A. Program inventory & structure (1–10)

Complete policy schedule by line, carrier, limit, retention, term
Named insured list vs legal entity chart
Primary vs excess / umbrella tower diagram
Occurrence vs claims-made classification per line
Renewal dates inside hold period and close window
Premiums last 3 years and mid-term adjustments
Self-insured retentions, captives, collaterals
Broker of record and service-level history
Multi-jurisdiction / multi-currency placements
Related-party or affiliate coverage gaps

B. Claims, loss runs & reserves (11–20)

Carrier loss runs for 3–5 prior years (all major lines)
Open claim list with reserved vs paid
Large-loss narrative files (severity events)
Subrogation and recoveries status
Claims frequency trend by cause code
Reserve development history (IBNR if available)
Litigation dockets mapped to coverage positions
Workers' comp experience mod / state filings
Auto / fleet loss ratio and MVR controls
Product liability claim clusters by SKU/region

C. Coverage quality & exclusions (21–30)

Key exclusions and manuscript endorsements review
Sublimit map (cyber crime, social eng, pollution, etc.)
Additional insured / waiver of subrogation language
Notice provisions and claims-made retro dates
Change-of-control and assignment clauses
Defense inside/outside limits
War, sanction, and territory limitations
Cyber silent vs affirmative coverage clarity
Professional services exclusion impact on ops model
Prior-acts and tail options on claims-made lines

D. Specialty lines (D&O, E&O, cyber, product) (31–40)

D&O limit adequacy vs deal size and sector peer
Side A/B/C structure and Side A difference-in-conditions
E&O / professional liability for client-facing work
Cyber: first-party, third-party, ransomware, business interruption
Privacy regulatory defense and notification costs
EPLI for multi-state employment footprint
Product / completed operations for hardware or consumer goods
Pollution / environmental if ops warrant
Crime / social engineering after payment-fraud history
Media / IP if content or platform risk is material

E. Contracts, COIs & close plan (41–50)

Top-customer insurance requirement matrix
COI sample quality vs contract minimums
Supplier / contractor insurance flow-down
Landlord / real-estate COI obligations
SPA insurance schedule accuracy
Run-off / tail quotes for claims-made lines
Buyer go-forward tower design and bind plan
R&W insurance candidacy and known exclusions
Integration: certificate issuance process day-1
Loss-control actions required by underwriters

How public-info screening fits insurance DD

Full policies and loss runs live in the data room. Before LOI, deal teams still win by screening: lawsuit and regulatory headlines that imply coverage stress, disclosed cyber incidents, product recalls, OSHA or transportation enforcement patterns, and sector-typical hard-to-place lines. A structured first-pass pack compresses that public screen so you only fund broker and specialty counsel on names that survive triage.

Public screening is not a coverage opinion, an actuarial study, or insurance advice. It is a decision aid for which targets deserve a full insurance workstream budget.

Screen insurance risk before you fund specialty scopes

Order a public-information diligence pack on your target. Use it to prioritize insurance questions, then bring brokers and counsel for bindable coverage — not for first-pass triage across a long shortlist.

Order $39.20 report → Free brief first Sample PDF