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How long does IP due diligence take in an M&A deal?
Updated June 2026
The short answer
IP due diligence in an M&A deal typically takes 2 to 6 weeks. Small portfolios with clean ownership records sit at the short end; large portfolios, tangled chain of title, cross-border assets, or a freedom-to-operate overlay push the work toward six weeks and sometimes past them.
The calendar is governed less by analysis time than by how quickly documents arrive. A seller with a prepared data room shortens everything; a seller assembling records on request is the most common cause of slippage.
Where the weeks go
The work runs in four overlapping phases. Scoping and the document request list take days: deciding which assets and which questions the deal thesis depends on. Document collection is the long pole, and it is owned by the seller; everything else waits on it. Analysis runs in parallel as documents land: title and encumbrance review, portfolio quality assessment, coverage mapping against the revenue being bought. Findings and Q&A close it out, and this stretch is often iterative, because answers raise new questions.
The 2 to 6 week range assumes ordinary mid-market scope. A checklist-level confirmation on a small portfolio can run faster; deep verification plus a transaction-grade valuation runs longer and is usually planned that way from the start.
What stretches the timeline
The recurring culprits: assignments that were never recorded, founder or contractor IP with no paper behind it, stacks of in- and out-licenses that each need reading, foreign filings requiring local-register checks, open source audits on software targets, and trade secrets that exist in heads rather than in any inventory. Each adds days to weeks.
The worst case is a title problem discovered late, which can pause a deal entirely while fixes get papered. Curing chain-of-title defects is legal work for counsel, and it takes calendar time the exclusivity window may not have. This is the strongest argument for sellers finding their own problems first.
How to compress it without losing rigor
On the sell side: build the data room before going to market, with assignment records, license registers, and a current IP inventory, or run a pre-deal audit that produces them. Sellers who do this control the narrative on any weak spots instead of discovering them under a buyer's spotlight.
On the buy side: scope diligence to the deal thesis instead of running a generic checklist, review the crown-jewel assets first so the biggest risks surface earliest, and run legal verification and business assessment as parallel workstreams rather than sequential ones. Counsel handles the legal layer; a consultancy like ipCapital Group assesses quality, coverage, and value alongside them. We have worked inside compressed deal calendars regularly across 2,000+ engagements since 1998, and scoping starts with a free discovery call.
Related questions
When does IP diligence start in the deal process?
A light review often happens before the letter of intent, enough to support the offer price. Full diligence typically runs during exclusivity after the LOI is signed, which is exactly why the window is tight and preparation pays.
Can IP diligence be done in a week?
A triage-level review of a small portfolio can. Full verification with title, encumbrance, and coverage analysis generally cannot, and compressing below roughly two weeks means consciously prioritizing the assets that carry the deal and accepting less depth everywhere else.
What does IP diligence cost?
Published estimates for mid-market deals commonly run $15,000 to $50,000, scaling with portfolio size, scope depth, and timeline pressure. We break the drivers down on a separate page, How much does IP due diligence cost in an M&A deal?
Does seller preparation really shorten the process?
More than any other variable. Document collection is the long pole in the 2 to 6 week range, and a prepared data room removes most of it. Preparation also tends to protect the price, because problems the seller finds get fixed while problems the buyer finds get negotiated.
Get ahead of the deal clock
Buying or selling, the IP workstream is easiest to compress before it starts. Tell us the deal timeline and we will scope to it. The discovery call is free.
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ipCapital Group is a consultancy, not a law firm, and nothing on this page is legal advice. Dollar figures on this page are typical market ranges for professional IP services, drawn from published sources and industry experience across a variety of providers. They are not an ipCG quote or rate card; every ipCG engagement is individually scoped and priced. See how our pricing works.