By Mergers.co.uk · Last reviewed:
This guide explains how buyers commonly approach value. It is not a formal valuation, and it is not accounting, tax or legal advice. Your accountant, tax adviser and solicitor should advise on those matters.
In short: how is a software or SaaS business valued?
An established software or SaaS business is usually valued on a combination of measures rather than one number. Buyers look at sustainable EBITDA, annual recurring revenue (ARR) and the quality of that recurring revenue, revenue growth, customer retention (including gross and net revenue retention), customer concentration and gross margin. They also weigh product quality, intellectual property, technology risk, management depth, owner dependency, scalability and strategic fit, and the final price is shaped by competitive tension between buyers.
There is no universal valuation formula. ARR is not the same as accounting revenue, recurring revenue alone does not determine value, and two SaaS companies with identical ARR can be valued very differently because of their retention, margins, growth quality and risk.
This guide goes deeper into valuation methodology and metrics than our main page on selling a software or SaaS business, which covers buyers, sale routes and the process. For general valuation principles across sectors, see our business valuation guide.
Why EBITDA Matters in a Software or SaaS Valuation
EBITDA (earnings before interest, tax, depreciation and amortisation) is a measure of operating profit before financing costs, tax and the accounting write-down of assets, including capitalised development.
Maintainable EBITDA is the level of EBITDA a buyer believes the business can keep producing under new ownership, after removing one-off items and adjusting costs to a normal commercial level.
For profitable software companies, maintainable EBITDA is often a central measure. Reaching it involves normalisation: adjusting reported profit for owner or director remuneration that differs from a market salary, one-off expenditure such as a platform migration or rebrand, exceptional costs such as a dispute, and items that will not recur.
Software adds one particular question: how development spend is treated. Some companies capitalise part of their development cost onto the balance sheet, which lifts reported EBITDA because the cost appears as amortisation instead. Others expense it all. Neither approach is wrong, but buyers will want to understand the policy and the cash actually spent on development, so they can compare earnings quality fairly. Your accountant should advise on the accounting treatment itself.
Hypothetical example (made up for illustration)
A B2B SaaS company reports EBITDA of £900,000. Of that, £250,000 comes from capitalising developer salaries. The founder takes a £30,000 salary where a replacement chief executive would cost £130,000, and the year included £60,000 of one-off costs for migrating hosting providers. A buyer comparing it with a company that expenses all development might look at EBITDA of roughly £610,000 on a like-for-like cash basis (£900,000 − £250,000 − £100,000 + £60,000). How the buyer treats each item is a matter for negotiation and evidence.
How Does ARR Affect SaaS Valuation?
Annual recurring revenue (ARR) is a forward-looking measure of contracted or expected recurring subscription revenue over a 12-month period, based on the company's stated methodology.
ARR is an operating metric, not statutory revenue. It is not audited in the same way, and definitions vary between companies. One-off implementation, consulting, training and hardware revenue should not automatically be included. Contracted revenue and recurring revenue are related but not always identical: a three-year contract may include set-up fees that are contracted but not recurring, while a monthly rolling subscription is recurring but only contracted a month at a time.
When assessing ARR, buyers may examine:
- ARR composition: which products, plans and customer groups it comes from
- Contract terms, including length, notice periods and termination rights
- Billing frequency, and whether customers pay annually in advance or monthly
- Renewal history and upcoming renewal dates
- Price increases, and whether customers accepted them
- Customer tenure
- Churn and downgrades
- Concentration within ARR
A clear written ARR definition, reconciled to invoicing and the statutory accounts, is one of the most useful documents a SaaS seller can prepare. Inconsistencies found in due diligence can undermine trust in every other metric.
What Is Monthly Recurring Revenue?
Monthly recurring revenue (MRR) is the recurring subscription revenue a business expects to receive in a given month, normalised to a monthly amount and excluding one-off fees.
Buyers may use MRR to understand the current recurring run rate and recent trends, often broken into new MRR, expansion MRR, contraction MRR and churned MRR. That month-by-month view shows momentum more clearly than an annual figure. Not every software company uses MRR: businesses with annual or multi-year contracts often report ARR only, and that is perfectly acceptable if the methodology is clear.
Is a Software Business Valued on Revenue or EBITDA?
A software business may be valued with emphasis on either revenue or EBITDA, depending on its profile. Revenue alone is not value, ARR alone is not value, and EBITDA alone does not capture every aspect of a software business. Buyers weigh the measures according to:
| Factor | How it can shift the emphasis |
|---|---|
| Profitability | A consistently profitable business is more likely to be assessed on maintainable EBITDA. |
| Growth | A fast-growing business reinvesting profit may be assessed with more weight on recurring revenue and growth. |
| Maturity | Mature products with stable customer bases tend towards earnings-based assessment. |
| Recurring-revenue quality | Contracted, sticky subscription revenue carries more weight than project income. |
| Retention | Strong gross and net retention support confidence in future revenue. |
| Gross margin | Higher-margin revenue converts more readily into future profit. |
| Capital requirements | Heavy ongoing development or hosting investment affects the cash a buyer can expect. |
| Strategic value | A buyer may value technology, customers or data beyond current earnings. |
In practice many buyers look at both, alongside cash generation. We do not publish generic software or ARR multiples, because broad ranges rarely describe an individual business well.
Why Does Gross Revenue Retention Matter?
Gross revenue retention (GRR) measures how much recurring revenue from an existing group of customers remains after a period, once churn and contraction are deducted and before any expansion revenue is added.
Because it excludes upsells, GRR cannot exceed 100%. It shows how sticky the customer base is, how reliant customers are on the product, and how much revenue is lost each year to cancellations and downgrades. Buyers use it to judge the underlying stability of recurring revenue before any growth from existing accounts. What counts as a good level depends on the market, customer size and contract structure, so there is no single benchmark.
Why Does Net Revenue Retention Matter?
Net revenue retention (NRR) measures how recurring revenue from an existing group of customers has changed over a period, taking account of retained revenue, upsells, cross-sells and expansions, less churn and contraction.
NRR can be above or below 100%. Where expansion within existing accounts outweighs churn and downgrades, revenue from the existing base grows on its own, before any new customers are won. That can materially change a buyer's view of the growth profile and of how efficiently the business grows. Buyers will want to see how NRR is calculated, over which cohorts and periods, and whether expansion comes from genuine product adoption or one-off price rises.
How Does Customer Churn Affect Value?
Churn is the loss of customers or recurring revenue over a period, through cancellations, non-renewals or downgrades.
Buyers usually distinguish several forms:
- Customer churn: the number or proportion of customers lost.
- Revenue churn: the recurring revenue lost, which may differ sharply from customer churn if large or small customers leave.
- Voluntary churn: customers choosing to cancel or not renew.
- Involuntary churn: where relevant, customers lost through failed payments or business closure.
- Downgrades: customers moving to cheaper plans or fewer licences.
- Cancellations: formal terminations, including those with notice still running.
A single churn figure can hide a great deal. Buyers may analyse churn by customer cohort, product, customer size, geography and sector to find out why customers leave. Churn concentrated among small, early customers on a legacy plan tells a different story from churn among recent enterprise customers. There is no universal good churn percentage; the explanation matters as much as the number.
Unsure how buyers will read your metrics?
We can help you understand how your ARR, retention and churn are likely to be assessed, in confidence.
Does Customer Concentration Reduce SaaS Valuation?
Customer concentration is the degree to which a business depends on a small number of customers, channels or sectors for its revenue or profit.
Buyers may look at concentration by recurring revenue, total revenue and gross profit, because each can tell a different story. It can also take forms beyond a single large customer: one strategic customer that influences the roadmap, one reseller or channel partner that controls access to many end users, or one sector whose fortunes affect most of the customer base. There is no universal threshold at which concentration becomes a problem. Long customer tenure and deep integration into a customer's operations can reduce the perceived risk, but they do not remove it, particularly if that customer is itself acquired or changes supplier policy.
Why Gross Margin Matters
Gross margin shows how much of each pound of revenue is left after the direct cost of delivering the service. In software, it may be affected by hosting and infrastructure, customer support, third-party software and licences embedded in the product, data costs, implementation work and any managed-service elements.
A software company with significant services, such as implementation, bespoke development or managed services, typically has different economics from a predominantly subscription-based SaaS business. Services revenue usually needs people to deliver each pound of it, whereas subscription revenue can scale with less additional cost. Buyers therefore often analyse gross margin separately for subscription and services revenue.
How Do Buyers Assess SaaS Growth?
Buyers look behind the headline growth rate to understand where growth comes from:
| Source of growth | What a buyer may ask |
|---|---|
| New customers | Is the acquisition engine repeatable, and at what cost? |
| Expansion revenue | Are existing customers adopting more of the product? |
| Price increases | Were they accepted without extra churn, and can they be repeated? |
| Acquisitions | How much growth was bought rather than organic? |
| One-off projects | Is any growth non-recurring? |
| Temporary discounts ending | Is apparent growth simply the end of introductory pricing? |
Buyers may analyse whether growth is repeatable, profitable, dependent on heavy sales and marketing spend, or concentrated in one customer or market. Steady, efficient growth can be more persuasive than rapid growth that requires continual cash investment.
How Do Customer Acquisition Costs Affect Value?
Customer acquisition cost (CAC) is the average cost of winning a new customer over a period, usually calculated as relevant sales and marketing expense divided by the number of new customers won.
CAC payback period is the time it takes for the gross profit from a new customer to recover the cost of acquiring that customer.
Calculation methods vary. Some companies include only marketing spend; others add sales salaries and commissions, implementation costs where relevant, and channel partner commissions. Some separate new-logo acquisition from expansion within existing customers. Buyers will want to understand the method before comparing figures. CAC and payback help a buyer judge whether growth is efficient and how much capital future growth might require.
What Does Customer Lifetime Value Tell a Buyer?
Customer lifetime value (LTV) is an estimate of the total gross profit a business expects to earn from a customer over the whole relationship.
LTV is useful but model-dependent. It is heavily affected by assumptions about churn, gross margin, expansion, pricing and customer lifespan, and small changes in those assumptions can move the result substantially. Buyers therefore tend to treat LTV, and the ratio of LTV to CAC, as a directional indicator of unit economics rather than a hard valuation measure, and will test the underlying assumptions against actual cohort data.
How Do Product and Technology Affect Software Valuation?
Buyers usually carry out technical due diligence alongside financial and legal review. Areas they may assess include product maturity and the roadmap, technical debt, architecture and scalability, uptime and reliability, security processes, documentation, integration capability and APIs, and dependency on individual developers.
None of these needs to be perfect, but buyers price uncertainty. A known, documented backlog of technical debt with a plan to address it is generally easier to assess than one discovered during due diligence. Mergers.co.uk does not provide technical or cybersecurity assurance; buyers normally commission their own specialist review.
How Does Intellectual Property Affect Value?
In a software business, intellectual property is often the core asset. Buyers commonly examine source code ownership, trademarks, patents where relevant, databases, proprietary models, documentation, third-party components, open-source dependencies and their licence terms, and code written by contractors or freelancers.
The commercial question is whether the company can show it owns, or has the right to use, what it sells. Gaps, such as contractor code without clear assignment, can lead to price adjustments, specific protections in the sale agreement or delay while they are resolved. The legal position should be confirmed by your solicitor; see legal considerations when selling a business.
Does AI Increase the Value of a Software Business?
AI capability does not automatically increase value. It can support value where it is genuinely useful to customers, embedded in the product, proprietary, defensible, cost-effective to run, and legally and commercially transferable to a buyer. Where it relies on third-party models or APIs, buyers will consider the cost, contractual terms and risk of that dependency changing.
Using third-party AI tools does not by itself create proprietary intellectual property. What may be proprietary is the company's own data, workflow, integration or model training, and buyers will ask to see evidence of that and of customer adoption.
Does Founder Dependency Reduce Software Valuation?
Founder dependency often affects value. In many software companies a founder designed the architecture, still writes or reviews critical code, holds the major client relationships, leads sales and fundraising, sets the roadmap and manages the team. Reliance on one technical lead or a very small development team raises similar concerns.
Buyers may respond with lower upfront consideration, an earn-out, a longer handover or retention arrangements for key staff. Documented systems and code, shared knowledge across the development team, and a management layer that can run sales, product and delivery make the business easier to transfer.
Why Might Different Buyers Value the Same Software Business Differently?
Different buyers can value the same software business differently because each sees different opportunities. A strategic buyer may see value in:
- Access to the target's customers
- Complementary products that fill a gap in its own offering
- Cross-selling to both customer bases
- Technology it would otherwise need to build
- Data that improves its own products
- Distribution channels or partner networks
- International expansion
- Replacing an internal development project
- Accelerating its product roadmap
- Adding recurring revenue to its own base
This is one reason a well-run, confidential process with several suitable buyers matters. Synergies do not guarantee a higher price: buyers rarely pay away all the value they expect to create, and their appetite depends on their own priorities and funding. See selling to a trade buyer.
How Might Private Equity Assess a Software or SaaS Business?
A private equity investor typically assesses a software business as an investment it will later sell. Its focus is usually on recurring revenue and retention, growth, EBITDA and cash generation, the management team, customer concentration, product strength, acquisition opportunities and future exit potential. Investment criteria vary between funds.
Private equity often involves the founder retaining a stake alongside the investor, which can suit owners who want to realise some value now and share in future growth. See private equity investment and partial business sales.
Enterprise Value and What the Shareholder Actually Receives
Enterprise value is the value of the operating business as a whole, regardless of how it is financed.
Equity value is what the shareholders receive for their shares: enterprise value plus surplus cash, minus debt and debt-like items, adjusted for working capital against an agreed normal level.
In software businesses, a notable item is deferred income: customers who pay annually in advance leave cash in the business for services not yet delivered. Buyers may argue that some of this cash is needed to deliver those services, or treat part of deferred income as debt-like. How it is treated is negotiated and can materially affect what the shareholders receive. See negotiating business sale deal terms.
Hypothetical example (made up for illustration)
| Item | Amount |
|---|---|
| Enterprise value agreed | £12.0m |
| Add cash in the business | + £1.8m |
| Deduct part of deferred income treated as debt-like | − £0.6m |
| Deduct loan | − £0.5m |
| Working capital £0.1m below agreed level | − £0.1m |
| Equity value before costs and tax | £12.6m |
Actual treatment depends on the deal structure and the terms agreed. The tax consequences of any sale should be discussed with a tax adviser.
What Can a Software Owner Improve Before Going to Market?
Not every improvement is achievable in the time available, and not every one will necessarily increase value, but these usually make a software business easier for buyers to assess:
- Reconcile your ARR definition to invoicing and the statutory accounts.
- Analyse recurring versus non-recurring revenue.
- Document gross and net revenue retention, with the method used.
- Understand churn by cohort, product and customer size.
- Reduce excessive customer concentration where feasible.
- Clean up customer contracts and terms.
- Document IP ownership, including contractor assignments and open-source use.
- Reduce founder dependency across product, sales and management.
- Improve management reporting.
- Document the product roadmap.
- Quantify hosting and support costs.
- Identify and document technical debt.
- Prepare security and compliance information.
- Reconcile and evidence EBITDA adjustments, including development capitalisation.
- Create a clean, well-organised data room.
See how to prepare a business for sale and our due diligence checklist. For the sale process as a whole, see sell my business and choosing business sale advisers.
Software and SaaS Valuation FAQs
How much is my SaaS business worth?
There is no universal formula or multiple. Value depends on a combination of recurring revenue quality, retention, growth, profitability, gross margin, customer concentration, product and IP strength, founder dependency and how strongly particular buyers want the business. Two SaaS companies with the same ARR can be worth very different amounts.
Are SaaS businesses valued on ARR or EBITDA?
It depends on the business. Profitable, mature software companies are often assessed mainly on maintainable EBITDA. Faster-growing businesses that reinvest heavily may be assessed with more emphasis on recurring revenue, retention and growth. Buyers usually consider both, and neither measure alone determines value.
What is ARR?
Annual recurring revenue (ARR) is a forward-looking measure of contracted or expected recurring subscription revenue over a 12-month period, based on the company's stated methodology. It normally excludes one-off implementation, consulting and hardware revenue.
What is the difference between ARR and revenue?
Revenue is the statutory accounting figure recognised in the financial statements for a period, including one-off income. ARR is an operating metric that annualises current recurring subscription revenue. ARR is not audited in the same way, definitions vary between companies, and buyers will reconcile it to the accounts.
Does customer churn reduce value?
Usually, yes. Churn reduces the recurring revenue a buyer is acquiring and makes future revenue harder to forecast. Buyers look at churn by cohort, product, customer size and sector to understand why customers leave, rather than relying on a single headline figure.
Why does net revenue retention matter?
Net revenue retention shows whether revenue from existing customers grows or shrinks over time once upsells, cross-sells, churn and downgrades are counted. Strong expansion within existing accounts means the business can grow even before winning new customers, which changes a buyer's view of its growth profile.
Does customer concentration affect valuation?
It can. Dependence on one strategic customer, one reseller or one sector increases the risk a buyer takes on, which may affect price or deal structure. Long tenure and deep product integration reduce the perceived risk but do not remove it.
How does intellectual property affect value?
Buyers want confidence that the company owns its source code and other IP, that contractor-written code has been properly assigned and that open-source and third-party components are used on acceptable terms. Clear, documented ownership supports value; gaps can lead to price adjustments, specific protections or delay.
Does using AI increase software company value?
Not automatically. AI capability can support value where it is genuinely useful to customers, embedded in the product, defensible and cost-effective. Using third-party AI tools does not by itself create proprietary intellectual property, and reliance on external models or APIs is a dependency buyers will assess.
Do I need a formal valuation before selling?
Not necessarily. A formal valuation report is not required to run a sale, and the market ultimately sets the price. An informed view of your metrics, likely buyers and issues that may affect value before going to market helps set realistic expectations and prepare.