Selling in 2027? The IT Cleanup You Should Start Today

The short answer: To prepare your IT before selling your business, start 12 to 18 months out. Document every system, retire unsupported hardware and software, lock down who has access, clean up vendor contracts, and collect proof that your security controls work. Buyers pay more for a company whose technology runs without the owner and holds up under due diligence.

If you're thinking about selling in 2027, you're in good company. Three out of four business owners say they want to exit within the next 10 years, yet only 13% have a formal exit plan.¹ Most owners spend that planning time on the numbers: clean books, strong EBITDA, a tidy customer list. The technology usually waits until a buyer starts asking questions.

That's the expensive order of operations. Here's how to flip it.

Why Does Your IT Affect What a Buyer Will Pay?

Because buyers aren't just purchasing your revenue. They're purchasing the systems that produce it, and every risk inside those systems becomes their problem at closing.

Dealmakers know it. In a Q4 2025 survey of 150 senior investment banking executives, 47% said technology due diligence was their main priority over the previous 12 months, and 84% expect cybersecurity diligence to face even more scrutiny over the next one to two years.² The buyer across the table will look under the hood.

Sentry CEO John Ohlwiler has seen this play out from both sides of the table. "We've worked with clients where, because of setting security standards and IT standards in place, they were able to present their company to different buyers and get a higher valuation," he says. "The easier you can show how it can operate without you, without certain people, or without single points of failure, the more it's going to help increase your valuation."

He's also seen the opposite. A pest control company Sentry knew was heading to sale ran on an old, highly manual customer and maintenance system. After the acquisition, the new owners were still pulling data out of the old system and re-entering it by hand a year and a half later. "The owner probably could have gotten a little more valuation if he was using a more standardized software set," John says.

Private equity buyers, in particular, want to see systems that are documented, supportable, and secure, because they're planning to integrate or scale what they buy. A strategic buyer may already own some of that infrastructure. Either way, clean technology makes you easier to buy.

When Should You Start Your IT Cleanup?

Earlier than you think. Some fixes, like replacing a line-of-business application or renegotiating a multi-year contract, take months on their own. Here's a practical timeline for a 2027 sale:

Starting at the 12 to 18 month mark lets you fix problems on your terms and your budget, instead of watching them turn into price reductions, escrow holdbacks, or a slower close.

What Belongs on Your Pre-Sale IT Cleanup List?

These seven areas are where buyers find problems most often, and where a little work now pays off at the negotiating table.

1. Document everything. Build a current inventory of hardware, software, cloud services, and who supports each. Write down how critical systems work, where credentials live, and who to call when something breaks. If that knowledge lives in one person's head, a buyer sees a single point of failure.
2. Retire end-of-life systems. Hardware and software that no longer receive security updates are a red flag in any assessment. Microsoft ended support for Windows 10 on October 14, 2025,³ so any machine still running it is an easy finding for a buyer's diligence team. Replace these systems before a buyer prices the replacement into their offer.
3. Clean up identity and access. Remove accounts for former employees and vendors. Turn on multi-factor authentication (MFA), which requires a second proof of identity beyond a password, for every user and especially every administrator. Make sure admin credentials for your domain, email, and cloud platforms belong to the company, not to an individual.
4. Review vendor contracts and licenses. Look for auto-renewals, early termination fees, and change-of-control clauses that can trigger at sale. Confirm software licenses are transferable. A buyer who discovers a locked-in three-year contract for a tool they plan to replace will want that cost back.
5. Prove your security, don't just claim it. Buyers want evidence: patch reports, backup restore test results, security awareness training records, and a written incident response plan. Patching speed matters. In Verizon's 2026 Data Breach Investigations Report, the median time for organizations to fully fix known exploited vulnerabilities rose to 43 days.⁴ Showing a faster, documented patch cycle sets you apart.
6. Find your shadow IT and AI. Shadow IT is any tool your team uses without IT's knowledge or approval. That includes AI tools where employees may be pasting customer data. Inventory what's in use, bring the tools you depend on under management, and put an AI use policy in writing.
7. Reduce people-dependent risk. If one IT employee or outside contractor holds all the keys, document their knowledge and spread access across a managed process. Buyers worry about who walks out the door after closing, and so should you.

Third-party risk deserves a special mention here. Breaches involving a third party, such as a vendor or supplier, reached 48% of all breaches in the 2026 DBIR, a 60% increase from the prior year.⁴ Knowing which vendors touch your data, and what access they hold, is part of the cleanup.

What Happens If a Buyer Finds a Security Problem?

It depends on how serious the problem is and when it surfaces. Minor gaps usually become items on a remediation list. Bigger findings, such as evidence of a past breach, unsupported systems running core operations, or no tested backups, give the buyer leverage to lower the price, hold back part of the proceeds in escrow, or walk away.

The stakes are real. The average cost of a data breach in the United States reached $10.22 million in 2025, according to IBM.⁵ No buyer wants to inherit that exposure, and they'll price the risk accordingly. For a closer look at what acquirers dig into, see our guide to the IT due diligence red flags every acquirer should run down.

IT issues can also show up in the financial review. Unbudgeted upgrades, underpriced support contracts, and deferred technology spending can all affect adjusted earnings. We covered that in Inside the Quality of Earnings Conversation: Where IT Risk Hides.

How Does the Technology Maturity Model Help You Prepare to Sell?

Sentry's Technology Maturity Model (TMM) gives sellers a simple scorecard for where their technology stands and what to fix first. It has four stages:

• Operate: Your systems run reliably, are documented, and don't depend on one person. This is the floor every buyer expects.
• Secure: Your environment is defensible and compliant, with evidence to prove it. This is where most pre-sale value is protected.
• Integrate: Your systems and data can connect cleanly to a buyer's platform. This is what makes the first 90 days after closing go smoothly. (Our post-merger IT integration guide shows what buyers are planning for.)
• Innovate: You're using automation, data, and AI in ways that grow the business. This is where a buyer sees upside, not just stability.

A seller who can show a buyer solid Operate and Secure foundations, a clear Integrate story, and a start on Innovate is negotiating from strength.

Your Next Step

You've spent years building something worth buying. Don't let the IT environment be the reason a buyer offers less for it. Sentry Technology Solutions helps business owners assess their technology, fix what matters most, and walk into due diligence with the documentation to back it up.

Planning to sell in the next two years? Talk with the Sentry team at sentryitsolutions.com about a pre-sale IT and cybersecurity assessment, and start your cleanup while time is still on your side.

Frequently Asked Questions

How far in advance should I prepare my IT before selling my business?

Start 12 to 18 months before you plan to go to market. That gives you time to assess your environment, replace unsupported systems, and fix contract issues without rushing. Waiting until due diligence often means problems turn into price reductions instead of projects.

What IT documents will a buyer ask for during due diligence?

Expect requests for an asset inventory, network and system diagrams, software licenses and vendor contracts, security policies, backup and disaster recovery plans, incident history, and cyber insurance details. Having these ready speeds up the process and signals a well-run company.

Can a past data breach kill a business sale?

It can, but it doesn't have to. Buyers are most concerned with how a breach was handled and whether the root cause was fixed. Disclosing it early, with documentation of the response and improvements, is far better than having a buyer discover it on their own.

Is a pre-sale IT assessment worth the cost?

For most sellers, yes. An assessment finds the issues a buyer's team will find, but early enough for you to fix them on your own timeline and budget. The cost is typically small compared to the price concessions a serious finding can trigger.

Does my business need to be using AI before I sell?

Not necessarily, but buyers increasingly ask about it. At minimum, know which AI tools your employees use and have a written policy for how company data is handled. A thoughtful AI plan can strengthen your growth story.

References

1. Exit Planning Institute. "State of Owner Readiness Generational 2025 National Report." 2025. Based on EPI's 2023 National State of Owner Readiness survey of more than 1,100 U.S. business owners. exit-planning-institute.org/generational-state-of-owner-readiness
2. SRS Acquiom and Mergermarket. "2026 Best Practices in M&A Due Diligence." Survey of 150 senior executives at U.S. investment banks, conducted Q4 2025. srsacquiom.com/our-insights/m-a-due-diligence-study-2026
3. Microsoft. "Windows 10 End of Support." Support for Windows 10 ended October 14, 2025. microsoft.com/windows/end-of-support
4. Verizon. "2026 Data Breach Investigations Report." 2026. verizon.com/business/resources/reports/dbir
5. IBM Security and Ponemon Institute. "Cost of a Data Breach Report 2025." 2025. ibm.com/reports/data-breach