Preparing your data room before you sell a UK company: a six-week plan

Buyers’ lawyers send an information request list early, often within days of heads of terms. On a typical UK private company sale it runs to well over a hundred questions. A seller who has prepared answers most of it by pointing to a folder. One who has not spends the first month of exclusivity searching email, while the buyer’s view of the business quietly gets worse.

The plan below assumes a trading company with a single main site, a few dozen employees and an accountant and solicitor already appointed. Bigger groups need longer; very small businesses may need less. The structure holds either way.

Why plan six weeks and not two?

Because most of the work is not uploading. It is finding the signed version of a 2019 lease, discovering that a director’s appointment was never filed, or realising that the founder who wrote the core software never signed an IP assignment. Problems like those take time to fix, and some (a missing filing, a lost share certificate) involve third parties.

Six weeks gives room for that. It also lets the work sit alongside the day job: an owner-manager selling a business still has to run it, and diligence fatigue during the sale itself is one of the commonest reasons deals slow down.

What does each week cover?

Here is the plan in one table, with the UK documents that typically belong in each stage and who usually owns the work.

What happens in week one?

Build the index before you collect a single document. Ask your solicitor for a numbered folder structure that follows the likely sale agreement warranties, because the index later becomes the backbone of the disclosure letter. A folder for each warranty heading, numbered, with sub-folders, is enough.

Choose and set up the room in the same week. The features that matter for a UK sale are per-folder permissions, structured Q&A, dynamic watermarking and a full audit trail, which most deal rooms in our ranking offer, although some of the file-sharing tools we review have no built-in Q&A. Beyond that, think about how easily your team and the buyer’s will find their way around, and whether the price is clear before you commit. Our quiz narrows the field in a couple of minutes.

Finally, write down who owns each week. One name per week, not a committee.

Why do the statutory books come first?

Because errors in the corporate records are the slowest to fix and the most likely to go to the heart of the deal. If the register of members does not match the share allotments filed at Companies House, the buyer cannot be sure who owns what it is buying.

In week two, reconcile the company’s own statutory registers (members, directors, people with significant control) with what Companies House shows. Check that every share issue and transfer has a board minute, a filing where one was needed and, for transfers, a stamped stock transfer form where stamp duty applied. Pull the articles and any shareholders’ agreement. Our guide to Companies House checks in a data room goes through the reconciliation step by step.

The cheapest problem to fix is the one you find yourself. The same missing filing, found by the buyer, costs time, trust and sometimes price.

What finance and tax documents will a buyer expect?

Week three is usually the heaviest. Collect three years of statutory accounts and management accounts, the current year’s budget and the latest monthly pack. Add tax returns, VAT returns and PAYE submissions for the same period, and every letter from HMRC, including any enquiries, penalty notices or time-to-pay arrangements.

Some items are easy to forget. If the company has claimed R&D tax relief, include the claims and supporting reports. If staff hold EMI options, include the option agreements and evidence that each grant was notified to HMRC. If the company has borrowing, include facility letters and any security documents, and check that charges registered at Companies House match the security actually in place.

A word on presentation: a short summary note at the top of the tax folder, written with your accountant, listing open enquiries and known issues, saves dozens of Q&A questions.

Which people and property records matter most?

In week four, pull every employment contract for senior staff and the standard terms for everyone else. Check that each employee has a written statement of particulars, that right to work checks are on file, and that the staff handbook is current. Collect pension scheme documents and evidence of auto-enrolment compliance; The Pensions Regulator sets out what employers must keep. Be careful with personal data here. Early-round bidders usually need anonymised summaries, not named payroll files.

For property, collect every lease, licence, rent review memorandum and licence to assign or alter, plus title documents for anything the company owns. A lease with a change of control clause, or a landlord consent requirement, needs flagging now rather than when the buyer’s property lawyer finds it.

What about contracts, IP and data protection?

Week five turns to what the business sells and owns. Rank customers and suppliers by revenue or spend, and put the top ten to twenty contracts in the room with a short schedule summarising term, termination rights and any change of control clause.

Then check ownership of intellectual property. Registrations are straightforward. The common gap is unregistered rights created by founders, contractors or agencies without a written assignment. If you find one, fixing it before the sale is much easier than negotiating an indemnity for it during.

Finish with IT and data protection: key software licences, IT support contracts, privacy notices, any personal data breach records and evidence that the company pays the ICO data protection fee where it is required to.

How should you spend the final week?

1. Walk the index as a buyer

   Open every folder as a test user with bidder permissions and check that each document opens, is the signed version and is filed in the right place.

2. Check permissions by group

   Set up groups for each bidder and for advisers, and confirm what each one can see, download and print. Keep sensitive HR and commercial folders closed for now.

3. Test Q&A routing

   Send a few test questions and confirm they reach the right person on your side, with your adviser able to approve answers before release.

4. Run a red-flag review

   With your solicitor, list every issue you found during weeks two to five and decide how each will be disclosed or fixed.

5. Freeze the index numbering

   Lock the folder numbering so references in early Q&A and the disclosure letter stay valid.

Do not use week six to catch up on uploads. If weeks two to five overran, push the launch date by a week rather than squeezing the test. A room that opens with broken links and wrong permissions makes a poor first impression that is hard to undo.

Which gaps do sellers usually find, and how do they fix them?

These are the problems that come up most often on UK owner-managed company sales, and the earlier you find them the cheaper they are.

None of these is unusual, and most buyers have seen them all. What they react to is surprise. A gap you disclose with a fix in hand reads as a well-run company; the same gap found in week three of exclusivity reads as a reason to renegotiate.