Data room costs in the UK: what to budget in pounds

Converted at $1 = £0.77. Entry prices are the lowest published starting point and may exclude VAT; your configuration may cost more. Confirm current pricing with each provider.

Why do so many providers quote on request?

Because their pricing is built around the deal, not a standard plan. Ten of the fourteen providers in our UK table do not publish a starting price. They size each quote on the expected number of users, the volume of documents, the length of the project and the features switched on, and the sales team will usually ask about the transaction before naming a figure.

That is not necessarily bad for the buyer. A bespoke quote can include onboarding help, a fixed project term and an agreed archive at the end. The difficulty is comparison: two quotes built on different assumptions are hard to line up, and the cheapest-looking one may simply assume a shorter deal.

The practical fix is to send every provider the same short brief: the deal type, an estimate of document volume, the number of bidder groups and users, the expected duration with a margin for slippage, and the features you need. Ask each to price that brief in pounds, with VAT shown separately. You will get figures you can actually compare.

What drives a data room bill?

Four pricing models are in common use, and many providers mix them.

On a UK private sale the swing factor is usually time. Heads of terms are agreed, the room opens and then something slows: a key customer contract needs consent to assign, the buyer’s funding takes longer, or the tax diligence throws up a question about historic employment status. Four months becomes seven. On a monthly plan that costs three more months; on a per-project plan it triggers an extension fee.

Volume is the second factor, and it catches people out on property-heavy deals. A portfolio of commercial leases, plans and environmental reports can run to tens of thousands of pages. If the quote is per page, ask for the overage rate in writing before you upload.

What does a room cost over a whole UK deal?

The chart below takes the three published monthly entry prices and multiplies them out over three, six and twelve months. It is deliberately simple: entry plans, no extras, no VAT.

Put against typical UK timetables, entry-level pricing gives these rough ranges. The low end uses the shortest typical duration at $149/mo; the high end uses the longest at $299/mo.

These are floors, not forecasts. A mid-market auction with several bidder groups, heavy volume and a team of advisers will often need a higher tier or a quoted provider, and the cost then depends entirely on the quote. For a broader view by deal size, see our data room costs page.

Is VAT added to a data room invoice?

It depends on where the supplier belongs, which you should confirm from the contract and the invoice rather than assume from the brand.

If the business that invoices you belongs in the UK and is VAT registered, it will normally add VAT at the standard rate, currently 20% according to HMRC’s VAT rates page. An entry price of approx. £115 a month would then show as approx. £138 on the invoice.

If the supplier belongs outside the UK and you are a business customer, the general rule for services is that the supply takes place where the customer belongs. The invoice will usually show no UK VAT, and a VAT-registered UK customer accounts for it under the reverse charge on its own return. HMRC’s place of supply of services guidance (Notice 741A) explains the rules and the exceptions.

Whether you can then recover that VAT is a separate question. Costs connected with selling shares can be treated differently from ordinary business overheads, and costs of an asset sale or fundraising have their own analysis. This is a conversation for your accountant before the invoice arrives, not after.

Ask for the quote in pounds, ask who will invoice you, and ask whether VAT is included. Those three answers settle most of the surprises before the room opens.

Which extras turn a modest quote into a large one?

The entry price is what you pay for the room. The final bill reflects how you use it. These are the lines we see push costs up most often on UK deals.

Extra users and bidder groups. A buyer’s team on a mid-sized acquisition can include the corporate development lead, two or three people from the buyer’s accountants, a team from the buyer’s solicitors, specialist property and pensions advisers and the lender’s advisers. If the plan counts users, confirm the limit and the price of each extra seat.

Storage and page overages. Covered above. Ask for the rate per gigabyte or per page over the allowance, and ask how the volume is measured.

Additional rooms. A seller might want a separate room for a clean team, for a second bidder, or for post-completion integration. Check whether each counts as a new room.

Extensions. A per-project price assumes an end date. Find out the cost of each extra month before you sign.

Archive copies. At completion, both sides usually want a full archive of the room on encrypted media or as a secure download. Some providers include this; some charge.

Currency movement. Most published prices here are in US dollars. If you pay in dollars, a weaker pound raises your bill mid-deal. If the provider will invoice in sterling, ask whether that price is fixed for the term.

Onboarding and support. Quoted providers often bundle setup help and round-the-clock support. Providers with published pricing may include support in the plan. Either way, confirm support covers UK business hours.

Who usually pays for the data room?

In a UK private sale, the seller normally pays. The room is part of presenting the business, and the corporate finance adviser or the sell-side solicitors usually arrange it. Some advisers have their own account with a provider and recharge the cost as a disbursement, so check your engagement letter for how that is billed and whether it carries a mark-up.

In a fundraising round the company pays. In a sale out of administration the room is an expense of the administration, met from the estate. Buyers sometimes pay for a separate room of their own during confirmatory diligence or for integration planning after completion.

What should you ask before you sign a quote?

Run through this list with every provider, in writing. It takes ten minutes and saves most of the arguments later.

• Is the price in pounds or dollars, and is it fixed for the whole term?
• Is VAT included, added at 20% or left for us to account for under the reverse charge?
• Which legal entity will invoice us, and where does it belong for VAT?
• How many users, rooms and gigabytes or pages are included?
• What does each extra user, room or unit of storage cost?
• Is there a minimum term, and what notice is needed to close the room?
• What does an extra month cost if the deal overruns?
• Is a full archive at completion included, and in what format?
• Where will our files and backups be stored, and which subprocessors can access them?
• What support is included during UK business hours and at evenings and weekends?

The storage question is not about cost, but it belongs on the same list. We do not hold confirmed hosting locations for any provider, and under UK GDPR you need to know where personal data in your room will sit. Ask now, while you still have leverage.

Can a free trial reduce the cost?

It cannot reduce the cost of a live deal, but it can save you from paying for the wrong room. Of the fourteen providers in our UK table, nine offer a free trial: Ellty (14 days), iDeals, Ansarada, Firmex, DealRoom, ShareVault, CapLinked, SecureDocs and Box. Datasite, Intralinks, Drooms, SmartRoom and Venue by DFIN do not, according to our data.

Use the trial to build a small copy of your real index, upload a sample of awkward files such as large spreadsheets and scanned leases, and invite a colleague into a test bidder group. If the permissions, Q&A and reporting all work the way your adviser needs, you have answered the expensive question before spending anything.

Is a cheaper file-sharing tool good enough?

Sometimes. Box, for example, publishes pricing from $15/user/mo (approx. £12/user/mo), and for five users that comes to roughly £58 a month. It offers an audit trail, watermarking and two-factor login, but our data shows no Q&A workflow and no document rights control.

For a management buyout, an intra-group reorganisation or a sale to a buyer who already knows the business, that may be enough. For an auction with competing bidders, the missing Q&A means enquiries run by email and the disclosure trail becomes harder to reconstruct. The few hundred pounds saved can look poor value if a warranty claim turns on what the buyer was shown and when.

The specialist rooms in our UK ranking all include structured Q&A and a full audit trail as standard, which is what a contested deal relies on.