Outsourced accounting that delivers 99.8% accuracy — closed by the 15th

Outsourced accounting in Spain involves delegating bookkeeping, financial reporting, and statutory compliance to an external professional firm. Every Spanish limited company (SL/SA) is legally required to maintain accounts in accordance with the Spanish General Accounting Plan (PGC, Royal Decree 1514/2007) and file annual accounts with the Commercial Registry within seven months of the fiscal year-end. Companies subject to the Immediate Supply of Information system (SII) must additionally submit VAT transaction data to the AEAT within four days of each operation.

Outsourced accounting is today the most efficient decision for businesses that want reliable financial information without the cost of an internal department. Our team combines technical rigour with business insight: we go beyond recording transactions — we analyse your financial data to deliver perspectives that drive growth and efficiency.

Accounting is not a bureaucratic formality: it is the nervous system of any well-run business. Up-to-date, correctly classified accounts reconciled monthly let you know at any moment whether your business is making money, where it is losing it, and how your cash position is evolving. Without that information, management decisions are made blind. With it, you can anticipate problems, negotiate with banks from a position of strength, and plan investments with confidence.

We work with businesses across all sectors and sizes, from growth-stage startups to multi-entity groups requiring consolidation. Our service model is built around rigorous monthly closes delivered before the 15th of the following month, with permanent access to dashboards that reflect financial reality in real time. We do not wait for you to ask — we send reports proactively and alert you whenever we detect significant variances from budget or historical trend.

Technology is a means, not an end. We work with leading accounting platforms — Holded, Sage, A3, SAP Business One — and integrate with your invoicing, POS, and ERP systems to automate data capture and minimise manual entry. This reduces errors, accelerates closes, and lets us focus on what creates real value: analysis and interpretation. If you are thinking about coordinated tax optimisation or a company valuation ahead of a corporate transaction, the solid accounting base we build together is the indispensable starting point.

For businesses that want to go further, our outsourced CFO service builds directly on the monthly accounts to provide financial planning, scenario modelling, and support in negotiations with financial institutions. Well-executed accounting is not a cost — it is the foundation on which a resilient, growth-oriented business is built.

Why outsourced accounting matters for your business

Many SMEs reach the end of a quarter without knowing precisely whether they made or lost money that period. Accounting accumulates unreconciled, bank statements do not match the ledger, and VAT or withholding declarations are calculated from incomplete data. The result is a chain of compounding errors: the VAT return does not match the accounts, corporate tax is settled on an incorrect taxable base, and when an AEAT information request arrives the company has no organised supporting documentation. Penalties for discrepancies between accounts and tax filings can reach 150% of the unpaid amount. Businesses that manage their payroll alongside outsourced accounting eliminate these gaps entirely.

Our outsourced accounting process

Our professionals assume the complete accounting cycle with an industrial-precision approach: every invoice posted to the correct account code, every expense classified according to its tax deductibility, every monthly close validated against bank movements before it is finalised. We use Holded, Sage, A3, and SAP Business One depending on each client’s profile, and integrate automatically with invoicing, POS, and ERP data sources to reduce manual input to a minimum. If we detect a discrepancy, we flag it and propose a correction before the month closes. For businesses needing integrated tax filing, our accounting and tax teams work in full coordination.

What our outsourced accounting service includes

The service covers complete monthly bookkeeping (invoices, bank statements, depreciation, provisions), bank reconciliation, monthly close with balance sheet and income statement, quarterly VAT calculation and filing (form 303), withholding returns (forms 115 and 111), corporate tax instalments (form 202), and the annual corporate tax return (form 200). For multi-entity groups the service includes consolidated financial statements with intercompany eliminations. Management reports are delivered before the 15th of the following month via a digital platform with permanent access.

Real results in outsourced accounting

Our clients receive their monthly close before the 15th with 99.8% accuracy verified over three years of service. The rate of AEAT information requests for discrepancies between accounts and tax returns is zero across our active client base. Time that directors spend resolving accounting problems falls by more than 80% from the first quarter. And the ability to present current financial information to banks or investors — previously requiring weeks of preparation — becomes available within 48 hours at any point in the year. If you need a full financial leadership function to complement the accounting service, our outsourced CFO integrates directly with the monthly close to support strategic decisions, financing, and investor reporting.

Accounting in Spain: the regulatory framework

Accounting for Spanish businesses is governed by the Plan General de Contable (PGC, Royal Decree 1514/2007 and subsequent modifications), which establishes Spanish GAAP for all companies incorporated and operating in Spain. The PGC is structured around the obligatory application framework (mandatory principles, valuation standards, and accounting standards) and the optional Chart of Accounts (catálogo de cuentas), which is widely followed in practice as the standard account structure for Spanish entities.

For groups required to present consolidated accounts under IFRS (public interest entities as defined in EU Regulation 1606/2002 and Spanish Ley de Auditoría), the PGC framework is supplemented or replaced by IFRS. The progressive expansion of CSRD reporting obligations also introduces sustainability reporting requirements that must be integrated with financial reporting processes.

Monthly accounting services: what the service includes

Our accounting service for Spanish businesses covers the full monthly accounting cycle:

Transaction recording and ledger maintenance: processing of bank statements, supplier invoices, customer invoices, and payroll entries into the accounting ledger using the applicable PGC accounts. For SII-enrolled companies (mandatory for grandes empresas, voluntary for others), this includes timely submission of invoice records to the AEAT.

Bank reconciliation: monthly reconciliation of the accounting ledger cash position against bank statements, resolving timing differences, and identifying and investigating unexplained items.

Accounts payable and receivable management: supplier invoice processing and payment scheduling, customer invoice generation (where not handled by the client’s operations team), and debtor ageing management.

Monthly close and reporting: production of monthly P&L, balance sheet, and cash flow statement in the agreed format — whether PGC standard, management accounts format, or a format specified by the group’s parent company or investors.

IVA (VAT) reporting: monthly or quarterly Modelo 303 preparation and filing, annual Modelo 390 summary, and Modelo 349 recapitulative statement for intra-EU transactions.

Annual accounts and statutory filing

Spanish companies are required to file annual accounts (cuentas anuales) with the Registro Mercantil within six months of the financial year end (30 June for December year-end companies). The annual accounts comprise: balance sheet, profit and loss account, statement of changes in equity, cash flow statement (for companies above applicable thresholds), and the memory (notes to the accounts).

For companies subject to statutory audit, the accounts must be signed by the auditor before filing. Our audit readiness team supports the preparation of accounts to audit-quality standard in cases where first-time or ad hoc audits are required.

Accounting integration with tax compliance

In Spain, the accounting records are the primary input to the IS (Corporate Tax) calculation — the IS base begins with accounting profit and applies specific adjustments. The quality of the accounting records therefore directly affects the quality and defensibility of the IS filing. Our accounting team works in close coordination with our tax compliance team to ensure that the two functions are fully aligned.

Contact our accounting team to discuss outsourced or co-sourced accounting services for your Spanish entity.