Selling a gestoría or tax advisory firm: Keys to valuation

Why is there so much demand for gestorías and advisory firms for sale?

The tax advisory and gestoría (administrative and tax services firm) sector in Spain is going through a process of consolidation. Large multidisciplinary groups, firms backed by private equity and accounting technology platforms are actively buying small and medium-sized practices to gain scale, client portfolios and geographical presence.

The reasons are clear: a gestoría with a portfolio of recurring clients is one of the most predictable businesses there is. Monthly income from fixed advisory charges, high client retention and natural exit barriers (changing adviser is inconvenient for the client) make these businesses enormously attractive to sophisticated buyers.

Factors driving consolidation

• Demographics: Many advisers who founded their practices decades ago are approaching retirement without a clear succession plan.
• Mandatory digitalisation: Mandatory electronic invoicing between businesses (Real Decreto 238/2026, implementing Ley 18/2022, the Spanish business creation and growth act), Verifactu (Real Decreto 1007/2023, with adaptation deadlines in 2027 under Real Decreto-ley 15/2025) and other regulatory changes require technology investments that small firms cannot always afford on their own.
• Economies of scale: Large groups can offer more services (employment, corporate, data protection, compliance) to the clients they acquire, increasing revenue per client.
• Growing regulation: Every new tax or corporate obligation creates more work and more need for advice, which reinforces demand for the service.

How much is a gestoría or tax advisory firm worth?

The value of a gestoría depends fundamentally on its monthly recurring revenue, its client retention rate and the practice's level of digitalisation. This is an indicative estimate based on Alcara Partners' valuation model:

Multiples by valuation method

Method	Range	Median
SDE (practices < €1-2M turnover)	2× – 3.5×	2.8×
EBITDA (practices > €1-2M turnover)	3.5× – 6.5×	5×

Alternative method: multiple of recurring turnover

In addition to the standard methods, in the advisory sector it is common to use as a quick reference a multiple of annual recurring turnover (the clients' fixed monthly payments), which varies according to the quality of the portfolio.

Illustrative example

Let us consider a gestoría in Valencia with these characteristics:

• 200 active clients with an average monthly charge of €150
• Annual recurring turnover: €360,000
• Total turnover (including income tax return season work, corporate tax work, one-off jobs): €430,000
• SDE: €155,000
• 3 employees + the owner
• Annual client retention: 93%
• Level of digitalisation: high (cloud accounting, digital signature, client portal)

Applying the median SDE multiple (2.8×):

€155,000 × 2.8 = €434,000

Given the high level of retention and digitalisation, a multiple of 3.2× could be justified, raising the valuation to €496,000.

To find out the estimated value of your practice, request a personalised free valuation.

Which factors increase the multiple?

• High recurrence: The higher the percentage of revenue that comes from fixed monthly payments (vs. one-off jobs), the higher the multiple.
• Client retention above 90%: It shows that clients are satisfied and will not easily change adviser after the sale.
• Advanced digitalisation: Cloud accounting tools (A3, Sage Despachos, Holded, Anfix), process automation, client portal. It reduces dependence on specific people.
• Diversified services: Practices that offer tax, employment, accounting, corporate and data protection services are more attractive than those that only do basic bookkeeping.
• Diversified client base: No individual client accounts for more than 5% of turnover.
• Stable team: Long-serving employees who know the clients and will stay after the sale.

Which factors reduce the multiple?

• Extreme dependence on the owner: If all clients deal exclusively with the owner, the risk of clients leaving after the sale is high.
• Outdated tools: Accounting on local software with no cloud connection, manual processes, paper documentation.
• Client concentration: A client that accounts for more than 15-20% of turnover is a significant risk.
• Mostly seasonal revenue: If most of the turnover comes from the income tax return season rather than monthly payments, predictability is lower.
• No formal contracts: Clients who pay monthly without a signed service contract.

The five value factors every buyer analyses

Buyers of gestorías and advisory firms apply a very specific analysis that goes beyond the accounting figures. These are the five factors that most influence their purchase decision and the price they are willing to pay.

1. Monthly recurring revenue (MRR)

This is the star metric. A buyer calculates the MRR (Monthly Recurring Revenue) and projects it over 12 months. The greater the proportion of revenue that comes from fixed monthly payments relative to total turnover, the higher the valuation. A practice where the vast majority of revenue is recurring tends to sit at the upper end of the multiples range.

2. Client retention rate

In tax advisory, client retention is usually high, so a practice with low retention raises red flags: it may indicate service quality problems, prices out of line with the market or dependence on volatile clients (start-ups, very young self-employed clients, known in Spain as autónomos).

3. Level of digitalisation

Digitalisation is not just a question of efficiency — it is a question of transferability. A practice that works with cloud tools is much easier for a buyer to integrate than one that depends on local software installed on a particular computer. In addition, digitalised accounting makes it possible to scale without adding staff proportionally.

4. Diversification of the client base

The ideal profile: 150-300 clients, none accounting for more than 3-5% of turnover, with a mix of self-employed clients, SMEs and the odd medium-sized company. The worst situation: 30 large clients where the top 5 account for 40% of revenue.

5. Non-compete and transition clauses

The buyer needs guarantees that the owner will not open a practice across the street the day after the sale and take the clients with them. A non-compete clause and a transition period in which the owner introduces the buyer to the clients are standard elements that make the transaction enormously easier.

The transition period: the key to a successful sale

In tax advisory the transition period is especially important. Clients trust their adviser as a personal figure, and an abrupt change can cause clients to leave.

Example of a transition structure

• Months 1-3: The owner and the buyer work together. The owner introduces the new person in charge to all clients, starting with the most important ones.
• Months 4-6: The owner gradually reduces their presence but remains available for questions and to step in if any client shows signs of dissatisfaction.
• Months 7-12 (if applicable): The owner progressively steps away, keeping only occasional contact for residual matters.

Impact on the valuation

An owner willing to carry out an orderly transition can obtain a better sale price than one who wants to step away immediately. Many buyers structure part of the price as a deferred payment linked to client retention during the transition period.

Who buys gestorías and tax advisory firms?

The buyer market is more active and diverse than many owners think.

Expanding advisory groups

Medium-sized and large firms (turnover > €2M) looking to grow through acquisition to gain geographical presence, expand their portfolio and take advantage of economies of scale. They are common buyers and can offer good terms.

Independent professionals who want to scale up

Tax advisers with several years of experience who want to make the leap from self-employed professional to business owner. They prefer to buy a ready-made portfolio rather than win clients one by one. They usually finance the purchase with a combination of personal savings and a bank loan.

Accounting technology platforms

Accounting software companies looking to acquire practices to turn them into service centres based on their technology. It is an emerging trend.

Private equity

Some investment funds have identified the tax advisory sector as an ideal candidate for consolidation strategies (buy-and-build), because of its fragmentation, recurring revenue and potential for improvement through technology.

You can explore more opportunities in professional services and other sectors on our businesses for sale page.

Illustrative example: sale of a gestoría in Valencia

GestVal Asesores (fictitious name) is a tax and employment gestoría founded in 1998 in the centre of Valencia:

• 200 active clients (70% self-employed, 30% SMEs)
• Turnover: €410,000 (88% recurring)
• SDE: €148,000
• 2 full-time employees + 1 part-time
• Annual retention: 92%
• Software: A3 in the cloud, digital signature implemented
• The owner (61 years old) wants to retire within 18-24 months

How the process could unfold:

1. Initial valuation: range of €370,000 – €518,000 (SDE × 2.5-3.5×).
2. A sales memorandum would be prepared highlighting the recurring revenue, the high retention and the advanced digitalisation.
3. If 10 potential buyers were contacted, 6 might sign an NDA and 3 make an offer.
4. Possible buyer: a tax advisory firm with two offices in Valencia that wants to expand its portfolio in the self-employed segment.
5. Price in this example: €440,000 (80% on completion, 20% deferred for 12 months, linked to client retention > 85%).
6. The owner would commit to a 12-month part-time transition period.

Total duration in this example: 7 months from the start of the process.

Steps to prepare your gestoría for sale

1. Formalise the service contracts

If your clients pay monthly without a signed service contract, put this right. A contract with a description of the services, the monthly amount and the termination conditions gives the buyer legal certainty.

2. Digitalise everything you can

Move to the cloud if you have not already done so. Implement digital signatures, a client portal and automation of routine processes. Every technological improvement increases value and makes the transition easier.

3. Delegate the relationship with clients

Introduce your employees as the clients' main point of contact. If a client trusts only you and nobody else in your team, it is a risk that the buyer will deduct from the price.

4. Document processes and the tax calendar

Create an operations manual: what is done each month, what obligations each type of client has, how incidents are handled. A buyer values being able to operate from day one without depending on your tacit knowledge.

5. Put your own accounts in order

Your own accounts must be impeccable. If a tax adviser does not have their own accounts in order, it is a negative signal for any buyer.

Frequently asked questions about selling gestorías

How long does it take to sell a gestoría?

The process usually takes several months. Gestorías with high recurrence, good retention and advanced digitalisation sell faster because the risk perceived by the buyer is lower.

Do clients leave when the owner changes?

With a well-managed transition, client losses are usually limited; without a transition, they can be much higher. That is why the transition period is so crucial.

Can I sell just the client portfolio without the company?

Yes, it is possible to transfer the client portfolio. However, the value obtained is usually lower than for a sale of the whole company, because the operational structure (employees, systems, premises) that supports those clients is lost.

What happens to professional association membership and professional licences?

Membership of a professional association (colegiación) is personal and is not transferred with the business. If the activity requires it (for example, to practise as a gestor administrativo, a licensed administrative agent), the buyer must hold their own professional qualification. This is not a problem if the buyer is another adviser or advisory firm, but it may limit the pool of potential buyers.

How is a gestoría that also does insurance or financial intermediation valued?

Income from insurance mediation or financial intermediation is valued separately, normally as a multiple of recurring commissions. In general, this complementary income increases the total value, especially if it is diversified.

Is it better to sell the whole gestoría or to transfer clients little by little?

A complete sale generates a significantly higher price. Transferring client by client produces smaller one-off income and drags the process out over years. Except in very specific circumstances, we recommend selling the practice as a whole.

Do I need an intermediary to sell my gestoría?

It is not compulsory, but it is highly advisable. An M&A adviser provides an objective valuation, access to qualified buyers, confidentiality, professional negotiation and the legal structure of the transaction.

What non-compete clause is usual?

As a reference, the European Commission considers non-compete clauses justified for up to three years when both the goodwill (client base) and the know-how are transferred, and for up to two years when only the goodwill is transferred, limited to the area where the seller provided its services (European Commission Notice 2005/C 56/03, paragraphs 20 and 22). It is a condition that buyers usually ask for.

Conclusion

Selling a gestoría or tax advisory firm is a transaction that requires planning, but it benefits from a very favourable market context. The combination of recurring revenue, high retention and active demand from buyers means that well-run practices achieve attractive valuations.

If you have a gestoría or tax advisory firm and want to explore your options, request a free, confidential valuation. We will give you a well-founded value range, without obligation.

References

1. Real Decreto 238/2026, de 25 de marzo, por el que se desarrolla el sistema de facturación electrónica obligatoria entre empresarios y profesionales (Royal Decree implementing the system of mandatory electronic invoicing between businesses and professionals) (BOE of 31 March 2026).
2. Real Decreto 1007/2023, de 5 de diciembre, por el que se aprueba el Reglamento que establece los requisitos que deben adoptar los sistemas y programas informáticos o electrónicos que soporten los procesos de facturación de empresarios y profesionales, y la estandarización de formatos de los registros de facturación (Verifactu), with the deadlines amended by Real Decreto-ley 15/2025, de 2 de diciembre (Royal Decree on the requirements for invoicing software and systems; Royal Decree-law amending its deadlines).
3. European Commission. Comunicación sobre las restricciones directamente vinculadas a la realización de una concentración y necesarias a tal fin (European Commission Notice on restrictions directly related and necessary to concentrations) (2005/C 56/03), paragraphs 20 and 22.