Online Estimate or Expert Valuation Report: Which to Choose for Your Project?

Online estimate or expert valuation report? The decisive criterion.

Introduction: online estimate or expert report, the right choice depends on who will read the number

The online estimate is sufficient when the number serves only you: personal reflection, periodic monitoring of value, preparation of a first discussion. The expert report becomes necessary as soon as a third party must rely on the number: buyer, shareholder, bank or tax authorities. The former costs from zero to around 500 CHF; the latter, from 5,000 to 40,000 CHF in Switzerland and from 3,000 to 30,000 EUR in France.

These two levels are not opposed, they follow one another. One produces an immediate order of magnitude, the other a defensible document in which every assumption is justified. The question is therefore not which one is "better", but which one matches the use of the number, in the sense that international standards give to value:

"Market value is the estimated amount for which an asset should exchange on the valuation date between a willing buyer and a willing seller, acting knowledgeably, in an arm's length transaction.", definition from the International Valuation Standards (IVS), International Valuation Standards Council.

The subject took on a new dimension in 2026: artificial intelligence has put estimation within reach of every business owner, free of charge and in a few minutes. This accessibility creates its own confusion, with three questions recurring constantly in framing interviews: is an online estimate reliable? can it replace a report? and what are the numbers produced by a general-purpose AI worth? Choosing the wrong level costs money in both directions: too early, you buy depth of analysis with no purpose; too late, you walk into a bank with a number it cannot retain.

This article compares the two options criterion by criterion, details what should tip the scales, describes the two paths and their timelines, sets out the five most costly mistakes, illustrates the sequence with a real Swiss succession case, then answers the ten most frequent questions.

The match at a glance: six criteria compared

Criterion	Online estimate	Expert valuation report
Cost	Free to ~500 CHF	5,000 to 40,000 CHF (Switzerland), 3,000 to 30,000 EUR (France)
Timeline	A few minutes	Two to six weeks
Depth	Declared data, sector references	Adjustments, documented assumptions, sensitivities
Defensibility	None: internal use	Defensible: bank, tax, negotiation, court depending on level
Signature	None	Identifiable professional who commits their responsibility
Right use	Order of magnitude, monitoring, preparation	Transaction, financing, taxation, governance

Cost ranges drawn from Hectelion's market observations of its competitors' practices in France and Switzerland, 2026. Excluding VAT and disbursements. Detailed prices are presented in our article How much does a business valuation cost?

Clarify your need before choosing

In doubt about the right level for your project? Book a free and confidential thirty-minute call: we qualify the use of the number and the timeline, and we tell you frankly whether an online estimate is sufficient at this stage. There is no interest, for you or for us, in selling a full report to someone who has no use for it.

Acontos: estimate the value of your company online, free of charge

Before going into detail, note that Hectelion has developed Acontos, an online tool for audit, due diligence and business valuation, powered by Anthropic's Claude Sonnet 5 artificial intelligence and calibrated by Hectelion's methodology. From your financial statements, it produces a first estimate of the value of your shares in a few minutes, free of charge and without retaining any document. Launch the valuation simulator to obtain an order of magnitude, then read on to locate precisely the boundary between the two levels.

What tips the scales: the use of the number above all

First, the existence of a third party. This is the decisive criterion. As long as the number stays in your office, the online estimate fulfils its function. As soon as a buyer, an incoming or outgoing shareholder, a bank or the tax authorities must rely on the value, a signed document with justified and auditable assumptions is required: that is the very definition of the expert report.

Second, the horizon of the project. More than eighteen months away from a contemplated succession or sale, the online estimate is enough to frame the reflection and track the evolution of value. Less than twelve months from a transaction, the documented report becomes the working tool: time is needed to correct what it reveals, owner dependency, earnings to normalise, structure to adjust.

Third, the complexity of the company. A single-activity business with clean accounts lends itself well to automated estimation. A group with subsidiaries, assets mixing operations and real estate, significant EBITDA adjustments or major intangible assets exceed what declared data can capture: human analysis becomes the condition of the number's reliability.

Fourth, the financial stakes of the decision. Incurring report fees to settle a low-stakes decision makes no sense; conversely, negotiating a sale of several MCHF on the sole basis of a declarative estimate means betting the essential on the accessory. A simple rule of experience: the more the decision commits, the more the number must be documented.

Fifth, confidentiality. Serious simulators process data without retaining it and say so expressly; an expert report is covered by the engagement letter and professional secrecy. The point of vigilance lies elsewhere: pouring your accounts into consumer tools that retain and reuse data for training. Always check a tool's data policy before depositing sensitive information.

Finally, the available budget is a criterion in appearance only: sound reasoning starts from the use of the number and derives the spending from it, never the reverse. The free estimate exists precisely so that budget constraints deprive no one of a serious first order of magnitude.

The 30-second decision grid: five questions before choosing

Five closed questions settle the matter in the vast majority of situations. A single "yes" points to the expert report; five "no" answers mean the online estimate covers the current need.

Question	If yes
Must a third party (bank, buyer, shareholder, administration) rely on the number?	Expert report
Is a capital event planned within twelve months?	Expert report
Does bank financing depend on the retained value?	Expert report
Is a tax matter involved (gift, inheritance, advance ruling)?	Expert report
Does the file include complex assets (group, real estate, major intangibles)?	Expert report

Five "no" answers: the online estimate is sufficient at this stage, to be updated periodically. And to understand how the prices of these two steps are evolving, see the "2026 trends" section of our article How much does a business valuation cost?

What an online estimate will never see

A simulator, however good, works on declared data: accounts, revenue, profitability, debt. Yet part of the value, and above all of the risks, appears in no standard declared data. Off-balance-sheet commitments first: guarantees given, pension commitments, ongoing or latent disputes, warranties granted in past transactions. Then owner dependency, the first discount factor in SMEs: a network of relationships and know-how that leave with the seller can be read in no balance sheet.

Add to this the actual quality of the order book and customer concentration, intragroup arrangements and atypical remuneration that distort apparent profitability, real estate mixed with operations, and latent tax and social liabilities. These elements are discovered through interviews, documentary analysis and professional judgment; they explain why two companies with identical accounts can be worth twice as much as one another, and why the expert report step retains its full function in the age of simulators. The online estimate frames the order of magnitude; human analysis establishes what the number owes to context.

Process and timelines: two complementary paths

The online path takes three steps and a few minutes: enter the key data or upload your accounts, let the engine apply the recognised methods, multiples, earnings value, DCF, the practitioners' method as the case may be, then receive an indicative range and a summary report. The result is worth what the input data is worth: reliable accounts produce a serious order of magnitude, approximate data an approximate number.

The expert report path follows the classic sequence of an engagement: free framing, fixed-fee engagement letter, document collection, analyses and adjustments, draft report discussed with the client, final presentation. Allow two to three weeks on a well-prepared file, four to six weeks when a forecast must be built. The deliverable documents the value range, its assumptions and its sensitivities, and carries its author's signature.

The most effective articulation is to sequence the two: the online estimate first, to objectify the order of magnitude and structure the framing discussion; the report afterwards, if and only if the use of the number requires it. The estimate does not duplicate the report, it reduces its cost: an owner who arrives at the framing meeting with structured accounts and a first range in mind saves analysis time, and therefore fees.

Comparing the options: a ladder, not a duel

Presenting the online estimate and the expert report as competitors is an error of perspective: they occupy two steps of the same ladder. The first step, free or nearly so, answers the question "what order of magnitude are we talking about?". The second, paid, answers the question "does this number hold up before a third party?". Between the two, the crossing criterion is always the same: the appearance of an external stake.

On the first step, not all tools are equal. A general-purpose AI, queried without method, produces a fluent but uncalibrated answer: it is neither trained on real transactions nor constrained by a valuer's methodology, and its number varies with the phrasing of the question. A dedicated simulator backed by a firm, built on proprietary models and real sector references, produces a reproducible and methodologically traceable range. That is the positioning of Acontos: the tool applies Hectelion's methodology, the very one that then structures the firm's full reports.

On the second step, the expert report comes in different levels depending on the stakes, as detailed in our article on the price of valuations: a fully documented valuation by an independent firm for successions, financings and shareholder agreements; reinforced expertise, Big Four or court-appointed expert, for regulatory and litigation contexts. Hectelion works on the intermediate step, for companies and transactions of 2 to 500 MCHF, with a multi-method approach aligned with IVSC standards and a dual Franco-Swiss reading; the firm is not FINMA-licensed and does not act on listed-company transactions. The continuity between the steps is the point of the arrangement: starting free of charge commits you to nothing, and climbing one step never means starting from scratch.

The 5 mistakes that cost money

Mistake 1: Opposing the two options instead of sequencing them

Choosing "forever" between online estimate and expert report is a false dilemma. The rational path sequences them: free order of magnitude first, paid documentation when the stakes justify it. Owners who lock themselves into a single option pay either in unnecessary fees, or in missing credibility the day a third party examines the number.

Mistake 2: Presenting an online estimate to a third party

Before a bank, a buyer or the tax authorities, a declarative estimate has no probative value: nobody signs its assumptions. Using it in that context weakens the position of the person presenting it, as the third party concludes that the file has not been prepared seriously. This is the most frequent and most costly mistake in negotiations.

Mistake 3: Confusing a general-purpose AI with a dedicated simulator

Asking a generic conversational AI for a valuation and using a dedicated valuation simulator are two exercises of a different nature. The first produces plausible text without an auditable method; the second applies proprietary models calibrated on real references. The first number does not reproduce from one session to the next; the second does. Before retaining a number, always ask: which method produced it, and who stands behind it?

Mistake 4: Commissioning a full report with no defined project

A valuation report has a shelf life: its parameters, rates, multiples, earnings, expire within twelve to twenty-four months. Commissioning it "just to know", with no deadline and no identified use, means buying a document that will be obsolete by the time it could serve. As long as the project is not dated, a periodically updated online estimate fulfils the same function for a fraction of the cost.

Mistake 5: Depositing your accounts in tools that retain the data

The accounts of an unlisted company are sensitive information. Before pouring them into an online tool, check three points: is the data retained, is it reused to train models, and who can access it? Serious professional simulators commit to retaining nothing; free consumer tools financed by data generally do the opposite. Free of charge is sometimes paid for in confidentiality.

Case study: from free estimate to bankable report, a Swiss succession at 15,000 CHF

The owner of a Swiss industrial SME preparing the transfer of the capital to the next generation started with the online simulator: half an hour to structure the data, an immediate indicative range, and above all a first objective reading of what was pulling the value down, insufficiently normalised profitability and poorly defined net debt. This free step framed the family discussion and triggered the decision to commission the full engagement.

The engagement conducted by Hectelion then produced the documented report required by the context: practitioners' method, DCF built on a full business plan, forecast income statement, projected balance sheets and five-year cash flow statement, and multiples from comparable transactions, all addressing the file's triple stakes, family succession, Franco-Swiss taxation and bank financing of the non-succeeding heirs. Fees: 15,000 CHF excluding VAT for a five-week engagement. The online estimate cost nothing and prepared the ground; the report turned the order of magnitude into a document the bank retained. That is the typical sequence of the two levels, each in its place.

The executive's perspective

"When an owner asks me whether they should pay for a report, my first question is always the same: who will read the number? If the answer is 'nobody but me', I recommend the simulator. If a banker, a buyer or the tax authorities appear in the answer, the report is no longer an option, it is the working tool."

"The online estimate has changed our profession for the better: owners arrive at the framing meeting with an order of magnitude and precise questions. We spend less time explaining what a multiple is, and more time working on what actually creates the value of their company."

"The one practice I advise against without nuance: pouring your accounts into tools whose data practices you do not know. Confidentiality is the first asset of a succession process."

Aristide Ruot, Ph.D., founder of Hectelion

FAQ: the 10 essential questions for choosing between online estimate and expert report

Introduction: what to keep in mind before the questions

The choice depends neither on the size of the company nor on the budget, but on the use of the number: internal, the estimate is enough; external, the report is required. The ten questions below are those business owners ask most often, with direct answers based on the Franco-Swiss practice observed in 2026.

Q1: Is an online estimate reliable?

Yes, for what it is: an order of magnitude built on the data you enter and on sector references. Its reliability depends on the tool, a dedicated simulator with proprietary models being markedly more robust than a general-purpose AI, and on the quality of your data. It never replaces a defensible document.

Q2: What does each option cost?

The online estimate ranges from free to around 500 CHF. The expert report ranges from 5,000 to 40,000 CHF in Switzerland and from 3,000 to 30,000 EUR in France for a fully documented valuation, more in regulatory or litigation contexts. These ranges are drawn from Hectelion's market observations, detailed in our article dedicated to prices.

Q3: Can an online estimate be used in a negotiation?

As a personal preparation tool, yes: it gives you a reference point before receiving an offer. As a document presented to the other side, no: without a signature or auditable assumptions, it carries no adversarial weight and can even harm your credibility. In a negotiation, only a documented report anchors the discussion.

Q4: When should you move from the estimate to the report?

At the precise moment a third party enters the project: a contemplated sale mandate, a bank discussion, a shareholder entering or leaving, a tax procedure. In practice, as soon as a deadline within twelve months takes shape, the report becomes the working tool, because time is needed to correct what it reveals.

Q5: Do banks accept an online estimate?

No. A credit committee requires a document signed by an identifiable professional, with justified assumptions, often accompanied by full forecast statements. The online estimate can prepare the file upstream, but the credit is decided on the report.

Q6: Is my data safe in an online simulator?

It depends entirely on the tool. Check three points before any upload: data retention, reuse for model training, and access. Serious professional simulators, including Acontos, process the accounts without retaining them and say so expressly. The European (GDPR) and Swiss (FADP) regulations govern these processing activities.

Q7: What is the difference between a general-purpose AI and a dedicated simulator?

The method. The general-purpose AI produces a conversational answer with no constrained valuation model and no verified transaction references; its number varies from one session to the next. The dedicated simulator applies proprietary models calibrated by a firm, on real sector multiples: its range is reproducible and methodologically traceable.

Q8: Does the expert report start from scratch after an online estimate?

No, and that is one of the benefits of the sequence. The data structured for the simulator directly serves the framing of the engagement, and the indicative range guides the analysis work. A file that arrives prepared reduces the report's fees and timeline.

Q9: How long does each option take?

A few minutes for the online estimate, with an immediate result. Two to six weeks for an expert report depending on the preparation of the file and the need to build a forecast. This differential explains the right order of the steps: the estimate first, the report when the deadline approaches.

Q10: Can you commission a report without going through the online estimate?

Of course: the estimate is not a prerequisite, it is an accelerator. If the deadline is close or the file complex, entering directly into an engagement with a firm is the shortest path. The free estimate then keeps another use: the periodic monitoring of value between two formal valuations.

Estimate the value of your company with Acontos, Hectelion's online simulator

To extend this reading with a concrete figure, Hectelion provides Acontos, its online tool for audit, due diligence and business valuation. Powered by Anthropic's Claude Sonnet 5 artificial intelligence and calibrated by Hectelion's methodology, it reads your accounts, normalises EBITDA, applies real sector multiples and rebuilds a net debt bridge to estimate the value of your shares in a few minutes. Launch the free valuation simulator: the tool is confidential, retains no document and does not replace a formal valuation, but it is precisely the first step described in this article.

Conclusion: start free of charge, document when the stakes require it

The choice between online estimate and expert report obeys a simple rule: the use of the number commands the level of proof, and the level of proof commands the spending. A number for yourself is built free of charge in a few minutes; a number for a third party requires a signed document, from 5,000 to 40,000 CHF in Switzerland and from 3,000 to 30,000 EUR in France depending on the case. Between the two, no antagonism: the case presented shows it, the free estimate prepared and improved the 15,000 CHF engagement that followed.

The winning sequence therefore remains the same for all profiles: estimate first, qualify the use of the number next, document last, at the right level. That is the ladder Hectelion has built, from the free valuation simulator to the full report of its business valuation offering, in France as in Switzerland.

Summary of the article

The online estimate and the expert valuation report are not competitors but two steps of the same ladder. The first, free to around 500 CHF, produces in a few minutes an order of magnitude for internal use: reflection, value monitoring, preparation. The second, from 5,000 to 40,000 CHF in Switzerland and 3,000 to 30,000 EUR in France according to Hectelion's market observations, produces in two to six weeks a signed and defensible document, required as soon as a third party, bank, buyer, shareholder or administration, must rely on the number.

The decisive criterion is neither the size of the company nor the budget, but the use of the number, supplemented by the horizon of the project, the complexity of the file, the financial stakes and the confidentiality of the data. The five costly mistakes all stem from the same misunderstanding: using one step for the function of the other, an estimate presented to a third party or a report commissioned with no project.

Artificial intelligence has made the first step accessible to everyone, provided you distinguish dedicated simulators, with calibrated proprietary models and reproducible ranges, from general-purpose AIs with no auditable method, and check the data policy of any tool before depositing your accounts. The rational approach is sequential: estimate free of charge, then document exactly at the level the stakes require.