Monthly payroll closing in large companies in Barcelona

Properly organizing the monthly payroll closing in a company with hundreds of employees requires much more than simply running a payroll program and generating payslips. We have to consolidate payroll discrepancies, apply collective bargaining agreements, review contribution bases, calculate withholdings, validate variables, coordinate payments, and then reconcile the information with Social Security, the Tax Office, and accounting.

When a workforce reaches several hundred people, a small parameterization error can affect dozens or even hundreds of payrolls. Therefore, the process requires a schedule, designated personnel, controls, traceability, and a review methodology that allows for the detection of deviations before payment is processed.

At MGI Àmbit we are a law and economics firm in Barcelona specializing in labor consulting and payroll management for companies. We work with organizations that need to professionalize, strengthen, or fully or partially outsource their payroll to maintain control even when the workforce increases, multiple collective bargaining agreements are in place, or complex labor issues arise.

Why monthly payroll closing is critical in large companies

The larger the workforce, the greater the number of variables that can affect the monthly calculation.

We don't just manage base salaries.

We can have simultaneously:

• Personal or job-related accessories.
• Variable compensation.
• Extra payments.
• Overtime.
• Additional hours.
• Temporary disability.
• Permits.
• Reductions in working hours.
• Seizures.
• Advances.
• Flexible compensation.
• Compensation in kind.
• New arrivals and departures during the month.
• Changes in work schedule or category.
• Settlements.
• Bonus.

The difficulty increases even more when we have different work centers, collective agreements, companies within a business group or teams distributed across several autonomous communities.

One mistake can have repercussions across the entire staff

If we incorrectly configure a supplement applicable to 400 employees, the problem does not affect a single payroll.

We may have to recalculate hundreds of payslips, modify contributions, correct accounting entries, and explain the differences individually to employees.

That's why we recommend detecting errors before the final closure and not relying solely on the software having performed the calculation correctly.

We no longer use TC1 as the main reference for the process

Quotation terminology has evolved and it is advisable to update it.

In the current environment of the Direct Settlement System (SLD) we work, among other documents, with the Contribution Settlement Receipt (RLC) and the Nominal List of Workers (RNT).

What is RLC

The Contribution Settlement Receipt reflects the economic result of the settlement of contributions.

What is the RNT?

The Nominal List of Workers contains information on the workers included in the settlement.

What role does SILTRA play?

SILTRA is the application provided by Social Security for the exchange of files within the RED System environment and the Direct Settlement System.

We should not use SLD and SILTRA as if they were exactly the same: SLD is the settlement system and SILTRA is one of the tools used to communicate with it.

Structure of the monthly payroll closing: the phases we recommend

In a company with hundreds of employees, we cannot organize the payroll solely around payday.

We need a recurring monthly procedure.

Phase 1: We collect the incidents

Before the calculation, we consolidate all the information that can modify the payroll.

Sources may include:

• HRIS.
• ERP.
• Timekeeping.
• Employee Portal.
• Department heads.
• Social Security Information.
• Compensation and benefits information.

In large companies, we recommend avoiding sending unstructured incident reports via email.

The more automated the workflow, the lower the risk of a salary variation being missed in the closing.

Phase 2: We validate the information received

We do not automatically enter any data received.

We need to check:

• Effective date.
• Applicable agreement.
• Economic impact.
• Impact on stock price.
• Fiscal impact.
• Consistency with employment contract or agreement.

Phase 3: We run the precalculation

The first calculation should not be considered the final result.

We generate a pre-calculation on which we perform massive and individual checks.

Phase 4: We analyze variations

We compared the results with the previous month and with expected values.

We can configure alerts to detect:

• Significant variations in net salary.
• Unexpected increases in gross income.
• Negative payrolls.
• Anomalous contribution bases.
• Unusual retentions.
• Duplicate concepts.
• Variables paid twice.

Phase 5: We approve the payroll

Once the deviations have been reviewed, the authorized person approves the closure.

In large organizations, we recommend separating the functions of calculation, validation, and authorization.

Phase 6: We execute the payment

We generate the bank remittance and coordinate the payment date in accordance with the contract, collective agreement or applicable practice.

The Workers' Statute requires that wages be settled and paid promptly and in writing on the date and place agreed or in accordance with customs and practices.

The cut-off date is one of the most important payroll decisions

A company with 500 employees cannot receive incidents indefinitely until a few minutes before executing the transfers.

We need to establish a cut-off date.

What happens to incidents reported before the outage?

They are incorporated, provided they are validated, in the ordinary closing.

What happens with late incidents?

We need to have a protocol.

Depending on the nature of the incident, we can:

• Reopen the calculation exceptionally.
• Prepare a supplementary payroll.
• Regularize in the following period when legally appropriate.
• Make a separate payment.

Not all incidents can simply be moved to the next month.

The decision depends on the concept, its accrual, and the corresponding labor and contribution obligations.

Indicative calendar for the monthly closing of payrolls

There is no universal calendar. Each company must adapt it to its payment date, collective agreement, internal organization, and volume of incidents.

As an example, we can structure it like this:

Moment	Action	Responsible
Days 1-10	Updates on new hires, terminations, contractual changes, and known incidents	HR / Internal Managers
Days 11-14	Validation of variables and ordinary cut-off date	HR + payroll
Days 15-18	Payroll pre-calculation	Payroll team / labor consulting
Days 19-21	Variance, reconciliation and correction reports	Payroll + validation manager
Days 22-24	Final approval and remittance generation	Management / Finance / HR.
Agreed payment date	Payroll payment and delivery of the salary receipt	Treasury / Banking
Month following accrual	Management and payment of contributions within the regulatory period	Payroll / Authorized Network

The schedule is for guidance only.

The important thing is that all departments know when to report an incident and who can authorize exceptions after the cut-off.

The payment of social security contributions should not be confused with the payroll payment day

Social Security contributions for a given period are generally paid within the month following the month in which they accrue.

Therefore, payroll and social security contribution settlement are connected, but do not necessarily share the same operating date.

What happens if we pay late?

The surcharge system also depends on whether we have fulfilled the corresponding settlement obligations within the deadline.

When those obligations have been fulfilled correctly, the surcharge is:

• 10 % if we pay the installments during the first calendar month following the due date.
• 20 % if we pay them starting from the second calendar month following.

When we also fail to meet the settlement obligations within the deadline, the regime can impose surcharges of 20% or 35% depending on the time of payment.

That's why we don't recommend describing surcharges simply as "10% or 20%" without explaining the specific situation.

Timekeeping records: a critical source for payroll closing

Article 34.9 of the Workers' Statute obliges the company to guarantee the daily recording of working hours.

The record must include the specific start and end times and be kept for four years.

Why we should integrate it with payroll

The record may directly affect the calculation of:

• Overtime.
• Additional hours.
• Absences.
• Delays.
• Certain bonuses.
• Night work.
• Shift work.

Automation does not mean absence of review

We can integrate time tracking with payroll software, but we still need clear rules on who validates an incident before converting it into a financial concept.

Collective agreements: there is no single “Collective Agreement for Catalonia”

When managing payroll in Barcelona or Catalonia, we must identify exactly which agreement is applicable to each company, center, or activity.

We may encounter agreements:

• State-owned.
• Autonomous.
• Provincials.
• Sectoral.
• From the company.

Each one can set salaries, supplements, seniority, working hours, extra pay, allowances, bonuses, holidays and other conditions with a direct impact on the payroll.

At MGI Àmbit we manage the monthly payroll closing from Barcelona, ​​taking into account the specific labor reality of each company, instead of applying general parameters that do not reflect the corresponding agreement.

Income tax withholdings on payroll

Calculating withholdings requires keeping personal and financial data that affect the applicable percentage up to date.

Changes during the year

Certain modifications may require us to adjust the withholding tax rate.

For example:

• Salary variation.
• Bonus.
• Contractual change.
• Change in expected duration.
• Personal or family changes communicated by the employee.

We do not apply a fixed percentage to the entire workforce

Each worker may have a different type.

The software makes the calculation easier, but we must ensure that it uses correct data and that adjustments are made when appropriate.

Model 111: monthly or quarterly

Withholdings made on salaries are paid using form 111.

Quarterly presentation

Generally speaking, when there is no monthly obligation, the form is submitted during the first twenty calendar days of April, July, October and January for the withholdings of the previous quarter.

Monthly presentations at large companies

Among other cases, the periodicity is monthly when we have the tax status of a large company.

In general, this condition is related to having exceeded 6,010,121.04 euros in transaction volume during the immediately preceding calendar year.

It doesn't simply depend on whether we have many employees or whether the monthly amount of withholdings is high.

Form 190 and withholding certificates

Form 190 summarizes annually certain withholdings and payments on account declared during the year.

We need to align it with the 111 models

Before submitting it, we performed checks between:

• Payroll accumulations.
• Withholdings recorded.
• Model 111 submitted.
• Data that we will incorporate into 190.

A discrepancy should not be resolved simply by modifying the annual summary: we need to identify where it originates.

Withholding certificates

The company must make the corresponding certificate available to each recipient before the period for filing personal income tax returns opens.

Temporary disability: how it affects the closure

Situations of temporary incapacity require specific treatment in payroll.

We must determine:

• Type of contingency.
• Dates.
• Applicable benefit.
• Delegated payment where applicable.
• Supplements provided for in agreement or contract.
• Impact on stock price.

The employee no longer has to submit the medical report to the company on paper

Since April 2023, the general obligation of the worker to provide the company with a copy of the medical report of sick leave, confirmation or discharge was eliminated.

The information is articulated through the communication mechanisms with the INSS.

Therefore, internal processes must be adapted to this system and not depend on the worker physically sending a document that he is no longer obliged to deliver.

However, this does not exempt the worker from their obligation to inform the company of their medical leave or discharge status.

Birth and care of a minor

We must also use up-to-date terminology.

Since 2019, the former maternity and paternity benefits have been integrated into the birth and childcare, the regulation of which has continued to be modified subsequently.

In payroll we need to coordinate:

• Start date of the periods.
• Company certificate.
• Contractual suspension.
• Possible fractional periods.
• Part-time situations where appropriate.

Wage garnishments

When we receive a garnishment order, we must properly incorporate it into the monthly process.

Article 607 of the Civil Procedure Law establishes limits and scales of seizure linked to the minimum wage.

We do not apply a flat percentage

We must calculate the withholding according to the legal scale and take into account the circumstances of the order received.

Traceability is essential

We need to preserve:

• Order received.
• Calculation performed.
• Amounts withheld.
• Income received.
• Subsequent communications.

Multiple employment and multiple contribution situations

Multiple employment may require specific actions related to the distribution of certain maximum bases among companies.

We do not recommend that two payroll departments unilaterally modify the terms and conditions simply because the employee reports having another job.

We must apply the relevant instructions and data within the Social Security procedure.

Payroll software for large companies

The tool should adapt to the process, not the other way around.

Rather than recommending a platform solely based on its brand, we analyze whether it can meet the specific needs of the organization.

What do we demand from a corporate payroll system?

• Ability to handle large volumes.
• Regulatory updates.
• Multi-agreement management.
• Management of several companies or centers.
• ERP integration.
• Integration with time tracking.
• Employee Portal.
• Authorization flows.
• Variance reports.
• Traceability of changes.
• Accounting export.
• Compatibility with Social Security processes.

We can work with solutions such as A3, Sage, SAP, Cegid and other platforms, but the final choice depends on the volume, integrations and complexity of the client.

Checks we perform before closing a mass payroll

The monthly payroll closing process must incorporate preventative controls.

Headcount calculation

We checked how many employees were due to be paid and how many payrolls were generated.

Ups and downs

We verify that all additions and departures are reflected.

Variation in wage bill

We compare total gross, business cost and net with previous periods.

Individual payrolls outside of tolerance

We set up internal thresholds to detect relevant changes that require explanation.

Extraordinary concepts

We review bonuses, arrears, compensation, extraordinary supplements and non-recurring payments.

Withholdings

We check for particularly anomalous personal income tax rates and relevant regularizations.

Contribution bases

We review the consistency of the bases and any potential issues before settlement.

Outsourcing payroll management in companies with hundreds of employees

Outsourcing can cover the entire payroll cycle or only the more technical areas.

Complete outsourcing

The consultancy may assume:

• Incident reception.
• Calculation.
• Revision.
• Pay stubs.
• Social security.
• Withholdings.
• Job support.
• Reports for finance.

Hybrid model

In large companies, it is common for HR to handle people management internally and for us to outsource the technical aspects of payroll.

For example, the client can control additions, variables and approvals while we take care of calculation, review, quoting and regulatory support.

There is no magic number of employees to outsource

A company with 80 employees may have a more complex payroll than one with 500 if it works with multiple agreements, shifts, variables, and incidents.

We analyze complexity, not just headcount.

Signs that our internal payroll model needs strengthening

• The closure depends on a single person.
• We make corrections every month.
• Incidents are reported through multiple channels.
• We don't have a cut-off schedule.
• HR and finance work with different figures.
• There are no reports of variations.
• We have recurring discrepancies in pricing.
• Employees detect errors before the payroll team itself.
• Knowledge of the process is not documented.
• The growth of the squad is overwhelming the team.

When several of these signs appear, outsourcing or redesigning the process may be more efficient than continuing to increase manual controls.

Segregation of duties

In organizations of a certain size, we recommend that the person who calculates should not be the only one who validates and orders the payment.

Three-level model

We can separate:

• Preparation: payroll team.
• Validation: Labor manager or HR.
• Execution: treasury or finance.

This structure reduces the risk of errors and also strengthens internal control against unauthorized modifications.

Traceability: we must be able to reconstruct any payroll

A company should be able to answer questions like these several months later:

• Who reported this variable?
• Who approved it?
• When was it introduced?
• What calculation did the system perform?
• Who validated the payroll?
• What modification was subsequently made?

That's why we recommend keeping logs, authorizations, and sufficient documentation to reconstruct the process.

Data protection and payroll confidentiality

The payroll contains a large amount of personal information.

Therefore, we must apply strict access controls and prevent massive files from circulating unprotected between departments.

Principle of minimum access

Each person should only have access to the data they need to perform their job.

Outsourcing

When a consultancy processes personal data on behalf of the company, we must correctly structure that relationship and the obligations regarding data protection.

Secure information transfer

For large teams, we recommend portals, integrations, or secure mechanisms rather than the recurring exchange of spreadsheets with salary information via email.

Payroll accounting

The payroll process doesn't end when we pay the worker.

Finance needs to record correctly:

• Wages and salaries.
• Social Security contributions paid by the company.
• Withholdings.
• Advances.
• Social benefits.
• Compensation in kind.
• Provisions where applicable.

ERP integration

In large companies we seek to avoid the manual entry of thousands of notes.

Proper integration between payroll and ERP allows generating entries by company, cost center, department, project, or other analytical dimensions.

Monthly payroll-accounting reconciliation

We recommend verifying that the total payroll, Social Security, IRPF and accounting entries match before considering the period definitively closed.

Periodic payroll audit

Even if the monthly payroll closing is working correctly, we recommend performing periodic reviews of the entire system.

What we audit

• Agreements applied.
• Salary tables.
• Remuneration concepts.
• Price.
• IRPF.
• Contracts.
• Conferences.
• Accessories.
• Registration and deregistration processes.
• Internal controls.
• Traceability.

We do not promise “zero contingencies”

An audit reduces risks and allows for the detection of errors, but we do not consider it appropriate to state that a company is completely free of future contingencies.

Regulations change, agreements are updated, and the circumstances of the workforce are constantly evolving.

How do we measure the quality of a payroll closing?

We shouldn't measure payroll solely by whether it was paid on time.

Useful indicators

We can analyze:

• Percentage of payrolls corrected after closing.
• Incidents received after the deadline.
• Average resolution time.
• Number of retroactive adjustments.
• Discrepancies detected by employees.
• Payroll-accounting differences.
• Incidents in SLD.
• Number of manual processes.
• Total time spent on closing.

These indicators allow us to know if we are really improving the process.

How we approach payroll management at MGI Àmbit

At MGI Àmbit we specialize in labor management and payroll for medium and large companies from Barcelona.

We do not apply the same procedure to all clients.

We analyze the current situation

We reviewed:

• Number of employees.
• Agreements.
• Work centers.
• Societies.
• Software.
• Calendar.
• Volume of incidents.
• Manual processes.
• Integrations.
• Internal equipment available.

We define responsibilities

We establish what information the client maintains and what tasks we can take on.

We documented the process

We created a clear flow so that closing doesn't depend on the informal knowledge of a single person.

We establish controls

We design validations for payroll, headcount, incidents, and differences.

We support growth

The system must be able to accommodate new hires, centers, companies, or agreements without each growth requiring the payroll to be rebuilt from scratch.

Conclusion: Professionalizing the monthly payroll closing process allows for scalability without losing control

The monthly payroll closing of a large company should not depend on rushing during the last days of the month.

We need a repeatable system comprised of cut-off dates, defined information sources, responsible parties, pre-calculation, variation analysis, approval, and traceability.

In addition, we must properly coordinate subsequent obligations related to Social Security, withholdings, accounting, and labor documentation.

The larger the workforce, the more important it is that knowledge of the process belongs to the organization and not just to one or two people.

At MGI Àmbit we help companies in Barcelona and other parts of Spain to organize, review and outsource their labor and payroll management, both through a comprehensive model and by working alongside the internal HR department.

A successful monthly payroll closing isn't just about everyone getting paid on time. It's about being able to explain, validate, and reconstruct every figure, and scale the process without proportionally increasing the risk of error.

Frequently Asked Questions about the monthly payroll closing

If you manage a large workforce and want to ensure timely, compliant, and smooth payroll processing, MGI Àmbit is your strategic partner. Tell us about your situation, and we'll propose the most suitable solution for your company.

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How do we organize the monthly payroll closing for a large company?+

We recommend establishing a fixed schedule with a cutoff date for incidents, pre-validation, pre-calculation, variance analysis, approval, and payment processing. Additionally, we need a specific protocol for handling late incidents and to separate the calculation, validation, and payment functions when the company structure allows.

Are the TC1 and TC2 forms still used for social security?+

To describe the current ordinary operation of the Direct Settlement System, we use documents such as the Contribution Settlement Receipt (RLC) and the Nominal List of Workers (RNT). SILTRA is an application used within the RED System and the SLD environment for information exchange.

When are Social Security contributions paid?+

As a general rule, fees are paid within the month following the period to which they correspond. We must manage the Direct Settlement System well in advance to resolve any discrepancies before the end of the regulatory payment period.

Is form 111 a monthly form for any company with many employees?+

No. The number of employees does not, by itself, determine the filing frequency. Among other factors, large companies file Form 111 monthly, and the status of a large company is generally linked to exceeding €6,010,121.04 in turnover in the previous calendar year. When there is no monthly obligation, filing is usually quarterly.

What checks should we perform before approving payroll?+

We recommend, at a minimum, reconciling the number of employees, new hires and terminations, total payroll, month-over-month variations, extraordinary items, social security contributions, income tax rates, and payrolls with amounts outside expected ranges. In large workforces, these controls should be automated whenever possible.

When is it worthwhile to outsource payroll?+

There is no specific number of employees at which outsourcing is necessary. It usually makes sense when closing depends on only a few people, there are recurring corrections, multiple collective bargaining agreements, a high volume of manual work, issues with Social Security, or when staff growth exceeds the operational capacity of the internal department.

CanMGI Àmbit handle only part of the payroll management?+

Yes. We can work with a hybrid model where the internal department maintains contact with staff and handles incident reporting, while we take over calculation, review, quoting, regulatory support, and other critical phases. We can also manage the entire process when the company wants to fully outsource payroll.

Can we manage payroll for companies with multiple agreements and work centers?+

Yes. It is precisely in these structures that correctly configuring agreements, categories, centers, schedules, and salary concepts is especially important. At MGI Àmbit we design the process according to the actual structure of each company and can work with organizations in Barcelona, ​​Catalonia, and other regions.