Operations & compliance
Verifactu is coming. What really changes for a small business.
Your invoicing software must seal every invoice, chain it to the previous one and register it with the AEAT. Many companies will pay a platform for that. Others will use the moment to fix everything else at the same time.
Key points
- 1Verifactu is not a recommendation — it is the condition for your invoicing software to remain legal.
- 2Odoo complies, and access to FACe for invoicing public administrations is included at no extra cost, with no credits to buy and no per-document charge.
- 3The exact date depends on your tax regime — the first one falls on 1 January 2027. It is not the same for a company as for a self-employed professional.
There are two ways to live with this obligation. The first is to pick a platform, pay for it every year, and go on juggling an invoicing program, a stock spreadsheet and a client file that exists in three versions.
The second is to decide that, since something has to change anyway, that change may as well fix the rest too.
What the law demands, and of whom
Verifactu requires your invoicing software to seal every invoice, chain it to the previous one and register it with the AEAT. It is not a recommendation: it is the condition for your software to remain legal.
The exact date depends on your tax regime, and the first one falls on 1 January 2027. We check it during the audit, before setting the project schedule: it is one of the first things we look at, because it decides when you need to be ready.
The Spanish calendar
Verifactu — the exact date depends on your tax regime
Now
en vigueurYour software must comply — every invoice sealed, chained to the previous one and registered with the AEAT.
01.01.2027
à venirFirst deadline — invoices sent through FACe and Verifactu. Not the same for a company as for a self-employed professional.
The real cost, and the one nobody mentions
Most platforms on the market sell credits or charge per document. It is the model that surprises our clients most when we explain it: you pay per invoice issued, every year, for a legal obligation.
Odoo complies, and access to FACe for invoicing public administrations is included at no extra cost. Where other platforms sell credits or charge per document, there is nothing to pay here for that service. Moving to Odoo settles the obligation and the rest at the same time, for the price of a single setup.
An owner's month, before and after
A property holding company in Valencia rents about ten commercial units. Before, invoicing, contracts and bank reconciliation took two days a month. We installed Odoo and built on top of it the AIOS that runs it.
2 days a month spent on invoicing, contracts and bank reconciliation.
Two days swallowed, every month
Issuing invoices, checking which leases have expired, reconciling transfers. Work that produces nothing, has to be redone every month, and happens whenever the owner has time — which often means late.
Invoicing goes out on its own
Every tenant receives their invoice on the 1st, with the tax treatment calculated from the property and the tenant. Nobody types an invoice. The calendar no longer depends on anyone's availability.
Only the decisions are left
The owner now only handles move-ins and move-outs: a new lease, a lease ending, a call on a deposit. The rest runs.
Time spent on invoicing, per month
Property holding company · about ten commercial leases · Valencia
Source: anonymised client data, August 2026. The remainder covers tenant move-ins and move-outs, handled manually by choice.
« Today everything goes out on the 1st without depending on my availability. I only handle move-ins and move-outs now. I gain two to three days a month, I gain on cash flow, and nobody chases me over a late invoice. »
On the 1st
invoicing goes out on its own. Nobody types an invoice.
5
risks closed: overlapping leases, unlodged deposit, invoice issued after a departure…
2–3 days
reclaimed every month from invoicing, contracts and bank reconciliation.
Spain and France: two regimes, two calendars
It is the mistake we see most often in companies working on both sides of the border: applying the Spanish calendar to a French company, or the other way round. The two regimes share neither their deadlines nor their mechanism.
| Spain | France | |
|---|---|---|
| Mechanism | Verifactu — every invoice sealed, chained to the previous one, registered with the AEAT | Approved platforms, registered with the DGFiP |
| First deadline | 1 January 2027 — depending on tax regime | 1 September 2026 — receiving |
| Issuing | The exact date depends on the type of company and the regime | 1 September 2027 for small businesses |
| With Odoo | Compliant, FACe access included at no extra cost | Approved platform, included at no extra cost |
We work with companies in both countries, and we systematically check which regime applies during the audit, before setting any schedule. This is a statement about a legal obligation: it does not get simplified.
Where to start, concretely
If you invoice five clients a month and your stock fits on a shelf, an ERP is out of proportion: a good invoicing program that complies with Verifactu will do, and will cost you less.
If on the other hand you retype the same information three times a day, if nobody can state the real cash position, and if the accountant asks for the same documents every quarter, then the legal obligation is above all a good opportunity:
- Check which date applies to your company — type of company and tax regime, not a generic date.
- Add up, over a year, what you pay today: invoicing program, quoting tool, stock spreadsheet.
- Decide whether you want one more platform, or a single tool that settles the obligation and the rest. Our Odoo page details what a setup covers.
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Article prepared by WEDOOALL from anonymised client data and the texts in force, checked on 31 August 2026. The amounts and deadlines quoted are tax rules, not client data.