Keep Using Xero or QuickBooks in Spain — We Make Them VeriFactu-Compliant for 2026
🇪🇸 Operate in Spain Without Changing Your Accounting System
Spain’s new VeriFactu law (Real Decreto 1007/2023) makes it mandatory for all businesses to use certified invoicing software.
QuickBooks and Xero, though excellent international invoicing and accounting tools, are not compliant with the Spanish market — and invoices issued directly from them will not meet the legal requirements starting in 2026.
That doesn’t mean you have to give them up.
At Strong Abogados, we have developed our internal software solution, Tempo , which makes QuickBooks and Xero fully functional in Spain, adapting them to the VeriFactu and AEAT reporting standards — without changing your workflow.
How It Work
Keep your system. We make it Spanish-compliant.
- You continue using QuickBooks or Xero as usual.
- Tempo , our software, automatically retrieves your invoice data in real time.
- We finish your new VeriFactu compliant invoice by adding a QR code and CSV hash (Código Seguro de Verificación).
- Your invoice is sent and verified by the Spanish tax agency, according to AEAT requirements.
- The compliant invoice replaces the original invoice in your system so you can send it to your clients directly, or choose our automated email system.
100% compatible with VeriFactu.
No software migration.
No interruption to your accounting or billing process.
Special Offer — For New Clients
We already hold all your accounting information, with invoices received and issued. We can save you time of exporting data from QBO or Xero, and go ahead with your bank reconciliation and tax filing process. To incentivize your change, we are offering:
Free VeriFactu Integration for 6 Months
When you start with our standard accounting and tax filing service (ask for our price!), we include a free 6-month integration of QuickBooks or Xero with the Spanish tax environment, including:
- VeriFactu QR and CSV generation
- Automated invoice synchronization
- Legal archiving under SIF
- Compatibility with Spanish tax models (303, 349, 390, etc.)
No technical setup or compliance risk. There is only a cost for changing to our accounting service if your current “asesor” has not done bank reconciliations and processed your accounting for the year in course.
We can also start your accounting and tax filing in January of 2026, and let your current accountant finish this year. In this case, you will also get 6 months of free integration, and we guarantee 0 cost when transferring, as long as everything is submitted.
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Why QuickBooks and Xero Don’t Comply Alone
QuickBooks and Xero were built for the U.S., U.K., and other English-speaking markets. Spanish fiscal rules go beyond accounting: they regulate how invoices are created, signed, transmitted, and stored. Spain also has different tax systems and banks that QBO and Xero are not adapted to. Making sure you get help to stay on top of this is essential.
Under the VeriFactu system, invoices must:
- Include a unique QR code and CSV hash (to verify authenticity)
- Be generated by certified invoicing software
- Follow strict tamper-proof and archiving standards
- Be reportable to AEAT in real time when requested
QuickBooks and Xero lack these features, so their invoices will not be valid in Spain after 2026.
The Tempo Solution
At Tempo, we bridge your accounting system with Spain’s legal framework.
Our system:
- IWorks directly withQuickBooks Online and Xero
- Automatically applies all VeriFactu requirements
- Maintains synchronization with your books, VAT ledgers, and filings
- Integrates with our accounting team for tax model preparation and filing
Strong Abogados | Tempo is a Spanish law and technology firm with 25 years of experience in: We are the only international accounting platform in Spain that fully automates VeriFactu compliance for QuickBooks, Xero, and foreign ERPs Our system is developed in Spain and certified under the Régimen de Sistemas Informáticos de Facturación (SIF). Our solution is ideal for: What You Gain
About Us
Who It’s For
Frequently Asked Questions
No. They are not currently developing any plan, so without our integration, both systems remain unusable in Spain. Invoices from those platforms will not meet Spanish legal standards.
No. You can continue invoicing inside QuickBooks or Xero. We handle the VeriFactu process automatically. You will simply have to wait a few minutes from the time that you create the invoice until we can process it, notify it and send it back to your platform. Expect a 5-10 minute delay at most.
Yes. Our system follows all technical and legal requirements from Real Decreto 1007/2023 and RD 1619/2012.
Yes. All invoices — within or outside Spain — will include the required QR and CSV codes and will be reported to AEAT in real-time. The only case when you wouldn’t have to notify the tax agency is if you create an invoice from a non-Spanish entity.
No. They are not currently developing any plan, so without our integration, both systems remain unusable in Spain. Invoices from those platforms will not meet Spanish legal standards.About QuickBooks & Xero Compatibility
Because they were developed for English-speaking markets where invoices don’t require real-time reporting or certified generation. In Spain, invoices must include a QR code, a secure verification code (CSV), and meet the technical standards defined by Real Decreto 1007/2023 — features that QuickBooks and Xero currently lack.
Unlikely. Both companies serve global markets and have no plans to adapt their systems to Spain’s VeriFactu or SIF regulations. That’s why integration with a certified Spanish platform like Tempo Zis essential.
Yes. You can continue using them for accounting, bank reconciliations, and financial analysis. We only replace the invoicing output layer, so all data remains consistent across your systems. However, Quickbooks or Xero cannot present any tax forms in Spain, so we recommend having us help you with bank reconciliations and tax preparations, as we already have all your data and this will solve all your issues.About the Integration Process
Usually 1-2 minutes for the connection. Once you give us access to your QuickBooks or Xero account, our system connects, verifies the data structure, and starts generating compliant invoices automatically. Then, it will start sending them back to you
Yes. After setup, new invoices from QuickBooks or Xero are automatically read, converted, and stored in the VeriFactu-compliant format. You don’t have to upload or modify anything manually.
No. Your invoices will look the same — we simply add the legally required QR and CSV codes, plus the timestamp and signature metadata hidden in the digital layer.
Yes. Our system supports multi-company environments. You can connect multiple QuickBooks or Xero organizations under one Tempo account, even across different tax IDs or regions..About Accounting & Compliance
Yes. Our software meets all requirements of the Régimen de Sistemas Informáticos de Facturación (SIF), including security logging, sequential invoice numbering, and traceability standards required by AEAT.
After VeriFactu becomes mandatory in 2026, those invoices could be considered non-compliant — meaning they might be rejected in audits, disallowed as deductible expenses, or subject to fines of up to €50,000.
bsolutely. The integration includes automatic generation of Spanish tax forms (Modelo 303, 349, 390, 111, 190, etc.) using the same invoice data, ensuring full consistency between your books and AEAT submissions.
Yes. Our system supports multi-company environments. You can connect multiple QuickBooks or Xero organizations under one Tempo account, even across different tax IDs or regions..
We handle cross-border invoicing too. Our system distinguishes domestic, intra-EU, and export transactions, adapting VAT logic automatically and ensuring all your OSS/IOSS or EU reporting stays accurate.
About Security & Data Protection
- Q: Where is my data stored?
All data is stored on secure servers located in Spain and the EU, in full compliance with GDPR and Spanish data protection law (LOPDGDD). - Q: Can my accountant or team access the same data?
Yes. You can create multiple user accounts with different access levels — for your in-house team, external accountants, or management — ensuring transparency and control. - Q: What happens after the 6-month free integration period?
After 6 months, you can continue using the integration at a low monthly cost as part of your accounting and tax plan. Most clients remain with us long-term because all compliance and filings are handled in one place. - Q: Does this integration also work with my payroll and HR system?
Yes. Our system supports multi-company environments. You can connect multiple QuickBooks or Xero organizations under one Tempo account, even across different tax IDs or regions. - Q: What happens if I stop using the platform or switch from QuickBooks to Xero, or viceversa, later on?
No problem — we support both. You can change systems at any time. We will support you with VeriFactu compliance from our own platform, or handle your integration switch from one platform to another, with no extra setup fee. - Q: What if I don’t yet have a Spanish entity?
We can form your Spanish S.L. company for free when you sign up for six months of accounting and tax filing service. You’ll be fully operational in Spain — and already compliant from day one. Then, you will also get 6 months of free invoicing. This is the best offer in Spain!
About Legal and Fiscal Support
- Q: Is your firm recognized by the Spanish authorities?Yes. Strong Abogados is a Punto PAE, officially recognized by the Kingdom of Spain for company formation and compliance services. We also act as legal fiscal representatives for international entities.
- Q: Can you also act as our tax representative (representante fiscal)?
Yes. For all our companies, we include tax representation and official communication management and reception of notifications from AEAT. - Q: What kind of companies do you typically help?
We usually work with international SMEs, tech startups, and remote-first companies. Many of which already use QuickBooks or Xero in their home country and want to enter the Spanish market legally, without changing systems. - Q: Do you provide legal defense or audit assistance if AEAT reviews our invoices?
Yes. As a law firm, we can represent you before AEAT and handle any tax inspection on your behalf. However, with our VeriFactu integration, every invoice will already meet the legal technical criteria, minimizing that risk.
About International Operations
- Q: Does this system also cover subsidiaries or parent companies abroad?Yes. We can centralize your Spanish operations and connect them to your parent company’s accounting system abroad, ensuring consolidated reporting while keeping Spanish compliance intact. If your parent company is taking care.
- Q: Can I issue invoices in multiple languages and currencies?
Yes. You can issue invoices in English, Spanish, or bilingual format, with automatic currency conversion and VAT handling in EUR or foreign currencies.
Compliance, Simplified.
You don’t need to change your accounting software — just make it compliant.
With Tempo, your QuickBooks or Xero setup becomes a legally valid Spanish invoicing system, ready for VeriFactu 2026. If you are interested in using a different international software that doesn’t comply with VeriFactu rules, let us know and we can do an automatic connection.
Operate in Spain with Confidence
Keep using Xero or QuickBooks. We make them fully compliant with Spain’s VeriFactu law.
Start today and get 6 months of free integration when you begin our accounting and tax filing service.
Start Free Integration, Talk to Our Compliance Team
Internal Link Recommendations.
- Cross-link to /verifactu (“Learn more about the VeriFactu system in Spain”)
- Mention on /company-formation page (“Already using QuickBooks or Xero? We make them fully compliant”)
- Optionally, create /quickbooks-spain and /xero-spain URLs that redirect to this main page.
Questions? We're here to help!
Contact UsFAQs:
What are the rules about how an invoice needs to look?
What is the VAT tax rate in Spain?
Does my Spanish company always need to include VAT tax when billing our clients?
What tax forms need to be filed for a Spanish company?
With an SL, when do I get a refund of the VAT tax I've paid?
Can I deduct expenses related to the sales department of my company (gastos de representación)?
Does my company need to report our invoices electronically to the tax office?