Fourteen payments. Six IRPF brackets. Thirty percent employer cost. Spain payroll, owned.
Spain’s payroll is not a configuration exercise. It demands a live SS contribution engine with contingencias comunes, desempleo, FOGASA, formación profesional, and MEI calculated in parallel, convenio colectivo awareness, 14-payment statutory logic, regional IRPF tables, and in-country people with direct authority relationships. Most providers deliver two of these. Mercans delivers all of them – on a single proprietary stack with no intermediaries.
native payroll
vs nearest peer
since inception
- Employer SS
- ≈ 30.6% (cap EUR 5,101.20/mo)
- Employee SS
- ≈ 6.5% (cap EUR 5,101.20/mo)
- IRPF (Income Tax)
- 19–47% progressive
- MEI (Intergenerational)
- 0.90% (ER 0.75% + EE 0.15%)
- Solidarity Quota
- 0.92–1.17% above cap
- Corporate Tax
- 25%
- SMI (Min. Wage)
- EUR 1,184/mo (14 pagas)
- Annual Leave
- 22 working days
- Working Hours
- 40h / week
- Overtime Rate
- 175%
- Sick Pay
- From day 4 (ER days 4–15)
- Notice Period
- 15 days minimum
- SS Max Base
- EUR 5,101.20/mo
- RED Filing
- Monthly via SILTRA
- Pagas Extraordinarias
- 14 payments / year statutory
Payroll compliance: the details that can’t be missed
Spain’s regulators don’t grade on a curve. The TGSS levies retroactive surcharges on every month of under-remittance. Inspección de Trabajo fines false autónomo arrangements up to EUR 10,000. Mandatory time recording violations carry fines from EUR 751 to EUR 7,500. Temporary contract abuse triggers automatic conversion to permanent status. None of these failures announce themselves – they accumulate silently until an inspection makes them very visible.
SS misreporting – 20% surcharge
Underreported contribution bases trigger retroactive assessment with a 20% surcharge on the unpaid difference. The TGSS reconciles RED filings against IRPF declarations – discrepancies surface automatically.
False autónomo – EUR 10,000 fine
Misclassifying dependent workers as autónomos triggers forced regularisation into Régimen General, back-payment of employer SS contributions, and fines up to EUR 10,000 per worker under the LISOS framework.
Time recording violations – EUR 751–7,500
Since the 2019 mandate, all employers must maintain daily working time records. Inspección de Trabajo audits these routinely. Missing or non-compliant records carry fines from EUR 751 to EUR 7,500 per infraction.
Temporary contract abuse – auto-conversion
Spain’s 2022 labour reform severely restricts temporary contracts. Exceeding duration limits or chaining contracts triggers automatic conversion to indefinido status with full severance rights – no employer consent required.
The three types of providers who struggle with Spain
Global Aggregator Platforms
Platforms like Deel, Remote, and Rippling operate through a partner network in Spain — they don’t own the entity, don’t directly manage RED filings, and don’t control the compliance relationship. When regulations change, the instruction travels: platform → partner → your payroll. Each handoff introduces delay and interpretation risk.
- ×No convenio colectivo mapping — sector-specific pay tables ignored
- ×14-paga logic absent or misconfigured — proration errors on exit
- ×RED/SILTRA filing not managed directly — partner-dependent
- ×Regional IRPF tables (Navarra, País Vasco) not supported
Large Global Payroll Incumbents
ADP, Ceridian, and similar incumbents have Spain coverage — in name. In practice, their Spanish coverage is often delivered through regional partners or legacy systems that weren’t built for Spain’s convenio colectivo architecture, 14-paga statutory logic, or the latest labour reform requirements.
- ×Convenio updates lag months behind Boletín Oficial publication
- ×Solidarity quota and MEI calculations require manual workarounds
- ×Long implementation timelines — Spain not a core engineering market
- ×No integrated SILTRA/RED submission capability
Local Spanish Firms
Local Spanish asesorías and gestorías know the market — but they can’t scale with you. No payroll technology platform, no HCM integration, no multi-country consolidation, and no data security certifications that multinationals require. Fine for 10 employees. Inadequate at 100.
- ×No proprietary payroll technology — manual spreadsheet-based processing
- ×No HCM connector — Workday, SAP, Oracle feeds require custom work
- ×No data security certifications (SOC 1/2, ISO 27701, BCR)
- ×No EU consolidation — cannot report across Spain + other European entities
The only provider that closes every gap
Mercans is the only Spain payroll provider that combines a proprietary payroll technology stack, full-time in-country compliance teams, direct authority relationships, and enterprise-grade data security – simultaneously, on one contract, with no intermediaries.
The only engine built for Spain’s actual payroll architecture
G2N Nova™ is the world’s only API-first gross-to-net payroll engine. It natively models Spain’s 14-paga statutory structure, applies convenio colectivo pay tables per sector and province, handles progressive IRPF withholding across six brackets with regional variants for Navarra and País Vasco, and auto-generates RED/SILTRA compliance outputs. This isn’t configuration. It’s engineering.
Full-time Spain team – not a partner you phone when things break
Mercans employs full-time payroll and compliance professionals in Spain. They maintain active relationships with AEAT and TGSS – not through a contact directory, but through ongoing regulatory engagement. When the Boletín Oficial publishes a new convenio, when TGSS updates RED specifications, when AEAT modifies IRPF tables – we know before it reaches your inbox.
The security posture multinationals require – and the EU now mandates
Spain’s LOPDGDD (Ley Orgánica 3/2018), layered on top of the GDPR, requires payroll processors handling employee personal data to maintain documented privacy controls and data protection officer appointments. Mercans holds BCR approval, ISO 27701 certification, SOC 1 & 2 certifications, and ISO 27017/27018 – the only payroll provider in the EU with this complete certification stack. Zero security breaches since inception.
Where Mercans wins on every Spain-specific capability
Each row is a Spain-specific capability. Each cell shows native coverage as a fill bar – full = native in-platform, half = partial / manual workaround, empty = gap.
Spain Capability Coverage · 11 dimensions
Pagas extraordinarias + proration
Navarra · País Vasco · all CCAA
Workday · SAP · Oracle
Every rate. Every cap. Every obligation.
Spain payroll operates on exact numbers with hard deadlines. Mercans builds every figure below into G2N Nova™ and monitors them proactively – so you’re never discovering a rate change from a penalty notice.
Spain · Rate & Compliance Dashboard
Live 2025–2614 Pagas Are Statutory – Not a Benefit
Spain’s Estatuto de los Trabajadores mandates a minimum of 14 annual payments – 12 monthly plus two pagas extraordinarias. The timing of extra payments (typically June and December) and whether they’re prorated monthly depend on the applicable convenio colectivo. Mercans’ G2N Nova™ handles both models natively.
→ Modelled natively in G2N Nova™Convenio Colectivo Supersedes Statutory Minimums
Over 5,000 active convenios colectivos in Spain set sector-specific minimums for pay, working hours, overtime, and leave that override the Estatuto de los Trabajadores. Applying statutory minimums when a binding convenio exists is a compliance violation – not a conservative choice.
→ Convenio mapping updated on BOE publicationSolidarity Quota Is Uncapped – Unlike Standard SS
Introduced in 2025, the solidarity quota (cuota de solidaridad) applies to salary above the SS maximum base at rates of 0.92% to 1.17%. Unlike standard contributions, this quota has no ceiling. It requires a parallel calculation layer that most payroll systems do not model.
→ Parallel calculation engine in G2N Nova™GDPR + LOPDGDD Is a Payroll Processor Obligation
Spain’s LOPDGDD (Ley Orgánica 3/2018) supplements the GDPR with additional requirements for payroll processors, including mandatory DPO appointment for entities processing employee data at scale. Non-compliant processors create direct liability for the employers they serve.
→ BCR · ISO 27701 · GDPR + LOPDGDD agreements standardRun a Spain payroll. Right here, right now.
Switch contract type. Move the slider. Every number you see is the same calculation G2N Nova™ runs in production – SS multi-concept logic, IRPF progressive withholding, 14-paga proration, and true cost of employment exposed live.
Spain Payroll Sample · Live
G2N Nova™ engineEight things only Spain experts know to handle
These are the compliance details that don’t appear in standard payroll setup guides – but appear in every TGSS audit, Inspección de Trabajo inspection, and labour court case we’ve encountered in Spain over 20 years.
14 Pagas Are Not a Benefit – They Are Statutory
Spain’s Estatuto de los Trabajadores mandates a minimum of 14 annual payments. The two pagas extraordinarias can be paid in June and December or prorated monthly – but the choice depends on the applicable convenio colectivo, not employer preference. Incorrect proration on termination is the most common finiquito error.
Convenio Colectivo Overrides the Estatuto
Over 5,000 active convenios colectivos in Spain set sector-specific and provincial minimums for pay, hours, overtime supplements, and leave that supersede statutory minimums. Applying the Estatuto when a binding convenio exists is not conservative – it’s non-compliant. Convenio updates publish in the Boletín Oficial and take effect immediately.
Autónomo RETA Contributions Are Not Like Régimen General
Self-employed workers under RETA (Régimen Especial de Trabajadores Autónomos) contribute ≈ 31.2% of their chosen base – not calculated on actual earnings. The 2023 reform introduced income-linked base brackets, but the system operates fundamentally differently from employed workers. Misclassifying a dependent worker as autónomo is the most penalised labour violation in Spain.
MEI Is a New Permanent Contribution – Not a Surcharge
The Mecanismo de Equidad Intergeneracional (MEI), introduced in 2023, adds 0.90% (ER 0.75% + EE 0.15%) to social security contributions. It’s permanent, applies to all Régimen General workers, and will increase through 2029. Most international payroll platforms haven’t incorporated it – creating systematic under-remittance.
Reducción de Jornada Changes the Entire Payroll Calculation
Spain’s upcoming working time reduction (from 40 to 37.5 hours) changes SS contribution bases, overtime thresholds, and hourly rate calculations simultaneously. Employees also have individual rights to reduced hours for care responsibilities – each requiring a separate SS notification and recalculated contribution base.
2022 Labour Reform Made Temporary Contracts Near-Impossible
Real Decreto-ley 32/2021 eliminated most temporary contract types. Only two survive: por circunstancias de la producción (max 6 months) and por sustitución. Exceeding limits or chaining contracts triggers automatic conversion to indefinido with full severance rights. The reform carries the highest penalty escalation in Spanish labour law.
ERE/ERTE Requires Parallel Payroll Processing
Expedientes de regulación de empleo (ERE) and their temporary variant (ERTE) require employers to process partial or full suspensions alongside active payroll. During ERTE, SS contributions are partially subsidised, but the subsidy rates change by period and company size. Running two parallel calculation tracks – active and suspended – on the same payroll cycle is a requirement most platforms can’t meet.
Complemento de Brecha de Género Is a Mandatory Supplement
Parents who can demonstrate a career interruption due to childbirth or care receive a gender gap supplement on their pension – but the employer must correctly report the contributing periods that qualify for this complement. Incorrect SS reporting during maternity or paternity leave directly impacts the employee’s future pension entitlement.
One workforce. Two entirely different compliance tracks.
The foundational split in Spain payroll – employed workers on Régimen General vs. self-employed on RETA – is not a configuration toggle. It requires two distinct calculation engines, two sets of filing obligations, and two different contribution architectures. Mercans runs both simultaneously on every pay cycle.
Parallel Compliance Engines
SS registration via RED is mandatory from Day 1. Employer ≈ 30.6%, employee ≈ 6.5% on the contribution base, capped at EUR 5,101.20/month. Monthly filing via SILTRA with RNT and RLC reconciliation reports.
The contribution base includes all regular remuneration. Base salary, complementos salariales, pagas extraordinarias (prorated), and in-kind benefits all form part of the SS base. Excluding any component is systematic under-remittance.
IRPF withholding is progressive across six brackets. The rate applied depends on annual projected income, personal circumstances (family situation, disability), and autonomous community. Navarra and País Vasco operate entirely separate tax regimes.
Convenio colectivo determines the real minimums. Sector-specific and provincial collective agreements override statutory minimums for pay, hours, overtime, leave, and notice periods. Over 5,000 active convenios require continuous monitoring.
RETA operates on a completely different contribution model. Autónomos pay ≈ 31.2% of a chosen contribution base (income-linked since 2023), covering all contingencies in a single payment. No employer/employee split exists.
Misclassification carries the highest penalties in Spanish labour law. A false autónomo (falso autónomo) determination forces retroactive Régimen General enrolment, back-payment of all employer SS contributions, and fines up to EUR 10,000 per worker.
Quarterly and annual declarations to AEAT are mandatory. Autónomos file Modelo 130 (quarterly IRPF), Modelo 303 (VAT), and annual income declarations. Missing any filing triggers automatic penalty assessments.
The TRADE category creates a hybrid obligation. Trabajadores autónomos económicamente dependientes (TRADE) – those deriving 75%+ of income from one client – must be registered as such, with written contracts and specific termination protections that blur the line with employment.
Every obligation. Every authority. Mercans owns the calendar.
Spain compliance runs across TGSS, AEAT, and Inspección de Trabajo on monthly, quarterly, annual, and event-triggered cadences. Mercans’ managed payroll absorbs every filing as standard scope – you don’t track deadlines. We do.
SS Contribution Filing (SILTRA)
All social security contributions – contingencias comunes, desempleo, FOGASA, formación profesional, and MEI – filed electronically via RED/SILTRA for all Régimen General employees. RNT and RLC reconciliation reports generated per cycle.
Modelo 111 – IRPF Withholding Return
Quarterly declaration of all IRPF amounts withheld from employee salaries, professional fees, and other subject income. Filed by the 20th of April, July, October, and January. Late filing triggers automatic penalty plus interest.
Modelo 190 – Annual IRPF Summary
Comprehensive annual summary of all IRPF withholdings by recipient. Must reconcile exactly with the four quarterly M111 filings. Discrepancies trigger automatic cross-referencing with employee Renta declarations and penalty assessments.
Modelo 390 – Annual VAT Summary
Annual VAT declaration summarising all quarterly M303 filings. Must reconcile with quarterly returns. Required for entities with VAT obligations alongside payroll processing.
Alta / Baja – SS Registration Events
Every hire (alta) and termination (baja) must be communicated to TGSS via RED within statutory deadlines. Late alta filings result in retroactive SS liability from the actual start date. Baja filings trigger finiquito obligations.
Certificado de Estar al Corriente
Certificate of good standing with TGSS, required for public tenders, grants, and inter-company transactions. Mercans maintains continuous compliance to ensure this certificate is always obtainable on demand.
Modelo 303 – Quarterly VAT Return
Periodic VAT return filed quarterly for entities with Spanish VAT obligations. Must reconcile with invoicing records and annual M390 summary. Cross-referenced by AEAT with supplier declarations.
Modelo 347 – Annual Operations Informativa
Annual declaration of all transactions exceeding EUR 3,005.06 with any single counterparty. Cross-referenced by AEAT against the counterparty’s own declaration – discrepancies trigger automatic investigation.
Spain is one market. Mercans covers all of Europe.
For companies running payroll across multiple European states, complexity multiplies – not adds. Each EU country runs its own labour authority, social insurance body, and tax regime. Mercans covers them all on a single platform with country-specific compliance engines running in parallel.
covered
1 contract
consolidation
EU
Every filing. Every format. Submission-ready.
Mercans generates the exact file types that TGSS, AEAT, and Inspección de Trabajo expect to receive — not formatted summaries that need reformatting before you can submit them.
