How much does it cost to outsource an accounting practice's bookkeeping in Spain?

If you are considering outsource your accounting practice's bookkeeping, the price can be known from the start. At ContaFlow, the Accounting Analyst service has two commitment options: 4 hours a day for €1,199 + VAT per month and 8 hours a day for €1,999 + VAT per month.

The difference compared with hiring an employee should not be calculated by comparing the outsourcing fee alone with an accountant's net salary. To establish which option suits your practice, compare the full employer cost, the level of commitment you actually need, the tasks you want to delegate, and the impact of freeing your internal team from day-to-day operations.

How much it costs to outsource an accounting practice's bookkeeping

With ContaFlow, there is no need to rely on a generic market price range to find out how much ongoing accounting support costs. The published fee depends on the daily commitment contracted.

This means you know the base cost of your outsourced accounting resource from the outset. The right option does not depend solely on the number of clients at the practice: two firms with the same client portfolio may generate completely different volumes of invoices, reconciliations and adjustments.

What the Accounting Analyst price includes

The value of outsourcing lies not only in having working hours available, but in the tasks the professional can take on within the practice's operations.

Daily posting and invoice management

The analyst can take on daily bookkeeping and management of the invoice documentation that the practice chooses to include within the service scope.

Delegating this work frees the internal team from one of the highest-volume tasks when an accounting practice manages multiple companies and self-employed clients.

Bank reconciliations

Reconciliation makes it possible to check that posted transactions match the bank information and identify outstanding items, duplicates or discrepancies requiring review.

Outsourcing this is especially useful when the practice manages numerous accounts and needs to keep the books ready for closing.

Payroll journal entries

The service includes payroll journal entries. This should be distinguished from payroll preparation: the Accounting Analyst posts salary and Social Security information in the relevant accounts.

Posting accounting adjustments

The published scope includes posting accounting adjustments, an important task for ensuring that relevant transactions are correctly accrued and recorded.

Filing and documentation

Document organisation is part of the service. In a practice with many clients, setting consistent filing criteria reduces time wasted searching for receipts, invoices or supporting documentation.

Support with the accounting close

ContaFlow includes support with the accounting close. The specific scope must be coordinated with the practice, which retains oversight and any professional decisions it has kept in-house.

Audit support

The service provides audit support, particularly in preparing and organising accounting information that must be supplied during the process.

4 or 8 hours a day: which option does your practice need?

The decision should be based on the actual workload you want to remove from the internal team.

When it makes sense to hire 4 hours a day

The €1,199 + VAT per month option may be suitable when:

• The current team can oversee the client portfolio but needs to free up several hours of daily operations.
• Invoices or reconciliations are building up for certain clients.
• You want to start outsourcing without yet delegating the entire back office.
• You need additional capacity, but not a commitment equivalent to a full working day.
• You want in-house advisers to spend more time on closing, reviews and client service.

When it makes sense to hire 8 hours a day

The €1,999 + VAT per month may be more suitable when:

• There is sufficient volume to maintain a high daily accounting commitment.
• The practice wants to outsource a large part of its recurring operations.
• An employee's absence or departure has left a significant operational gap.
• Client growth is constrained by a lack of internal capacity.
• You want to build a stable external back office instead of immediately increasing headcount.

How much does it cost per year?

If the monthly fee remains unchanged for twelve months, the base cost of the service would be:

This figure enables a far more useful internal comparison than using a generic salary found online. Each practice can compare it with the actual employer cost of the hire it is considering and calculate the difference using its own data.

Accounting outsourcing vs hiring an in-house accountant

To compare the two alternatives properly, all relevant costs must be included.

It would not be accurate to say that outsourcing will always be cheaper. It may be in many situations, but the decision depends on the salary and collective agreement for the profile you would hire, employer contributions, recruitment costs, the need for cover, and the value to the practice of recovering internal capacity.

Why the hourly price is not the only variable

Two providers may offer a similar level of commitment yet deliver very different operational outcomes. Before choosing, it is advisable to analyse which tasks are included, how communication is organised, and what happens when an issue arises.

A professional practice should review at least:

• Exact scope of tasks.
• Software the external team will work in.
• Permissions and access.
• Internal person responsible for overseeing the work.
• Accounting policies to be followed for each client.
• Channel for resolving issues.
• How completed and outstanding tasks are documented.
• Data protection terms.

Do I need to change software to work with ContaFlow?

The aim is to integrate into existing processes and avoid outsourcing alone making it necessary to change the practice's entire technology infrastructure.

Before contracting the service, it is best to confirm the specific software and version used by the practice and define how users, permissions and access will be managed.

If a practice works with several software packages because each client uses a different solution, this must be included from the initial service-definition stage.

What to review before granting access

Before enabling the external team, it is advisable to establish:

• Individual user accounts where possible.
• Permissions limited to the contracted tasks.
• Confidentiality obligations.
• Procedure for granting and removing access.
• How copies or information downloads are handled.
• Response to security incidents.

Can the payroll department also be outsourced?

Yes. ContaFlow also offers a Payroll Specialist with the same two published commitment options:

Published tasks for this service include monthly payroll preparation, Social Security procedures, management of social security contributions through SILTRA/RED, and adaptation to the practice's software.

Therefore, a practice can assess separately whether its bottleneck lies in accounting, payroll, or both areas.

How to know whether outsourcing is cost-effective for you

The most useful approach is to calculate the cost of capacity, not just the cost of the role.

1. Calculate how much operational work you want to take from the team

Estimate how many actual hours are spent each week on posting, reconciliation, filing, payroll entries, adjustments and support with closing.

2. Identify who currently does that work

If this work is carried out by professionals who should be spending more time on advisory work, tax reviews or clients, there is also an opportunity cost.

3. Compare €1,199 and €1,999 with your real alternative

Use the employer cost for the profile you would hire, not a national average that may not reflect your collective agreement, city or experience level.

4. Assess the capacity you recover

If freeing up operational work allows you to take on more clients with your existing structure, that additional capacity forms part of the return on the decision.

5. Start with the commitment you can use consistently

If there is not yet enough workload for eight hours a day, starting with four may make more sense. If the internal team is fully stretched and there is recurring volume, the eight-hour option may reduce the bottleneck more effectively.

Tasks you should not outsource without defining responsibilities

Outsourcing execution does not mean indiscriminately handing over every decision made by the practice.

Before starting the service, it is advisable to define who:

• Approves uncertain accounting treatments.
• Decides how exceptional transactions are treated.
• Reviews and approves closes.
• Communicates with the end client.
• Authorises changes to procedures.
• Manage credentials and permissions.

The model works best when the external team knows what it can resolve independently and what it must escalate to the internal person responsible.

A fixed price does not mean an identical service for every practice

The fee defines the contracted commitment, but how those hours are used must be adapted to the specific operations.

One practice may prioritise reconciliations and daily posting; another may need more support with closing; a third may spread the commitment across different client portfolios.

For this reason, before starting it is useful to define an order of priorities and a clear process for allocating tasks.

ContaFlow as an external accounting department for practices

ContaFlow specialises in accounting and payroll outsourcing for practices and businesses. Its service enables you to delegate operational processes while the practice retains oversight of its clients and its professional decisions.

The Accounting Analyst offering is structured around two clear fees:

For a growing practice, one with an operational backlog, or one that does not want to add another in-house role immediately, knowing the cost from the outset makes it much easier to assess whether outsourcing fits its model.