Factuza for accountancy practices — run the invoicing for your whole client base

01 Start at home

Start with your own practice. Free.

If your practice is a limited company, from 1 January 2027 it has to issue invoices through VeriFactu. Just like any of your clients.

Your Factuza licence for your practice's own invoicing is free for as long as you work with us. No cap on invoices and no set-up fee. Try it on your own invoices before you recommend it to anybody.

Create my practice account

A client's dashboard in read-only mode: an amber band warns you and the buttons to issue an invoice and upload an expense are disabled.

Read-only mode: you go in to look without being able to issue anything by mistake.

02 How we work together

You buy your client bundle. And whoever wants their own account gets it from you, cheaper.

The client bundle is your tool: you add your clients inside it and do their invoicing yourself. And if one of them wants to log in and invoice for themselves, you sell them an account at 30 % off and charge whatever you decide. There is no need to choose: almost every practice ends up with both.

Your tool

The client bundle: you add your clients and do the work yourself

You buy the bundle you need, add your clients inside it and invoice for them at whatever price you decide. In exchange, you provide first-line support. This is what every practice buys: it is the tool you work with.

Your practice gets the whole of Factuza. The practice licence lets you invoice your own work like any sole trader or company: quotes, invoices, expenses, numbering series, recurring invoices and your own tax returns. The client bundle sits on top of that, not instead of it.

And those clients do not need an account: you run them. They send you their invoices and expenses, you enter them and Factuza works out each one's position. The bundle is your working capacity, not a login for them.

If one of them wants to log in and invoice for themselves, they need their own sole-trader licence —and you can sell it to them at 30 % off, which is what follows below. They still keep you inside: they invite you into their account and you go on doing their tax work exactly as before.

Clients in the bundle	Cost per month	Per client
5	79 €	15,80 €
10	129 €	12,90 €
20	199 €	9,95 €
25	224 €	8,96 €
50	349 €	6,98 €
100	599 €	5,99 €
150	849 €	5,66 €
More than 150	Let us talk	—

You choose your bundle size when you sign up.

Beyond 20 clients, each extra one costs €5. At the smaller sizes you are paying for what the bundle brings —the client dashboard, 10 users, tax returns per client and 8-hour support— not for a saving per licence. Start with the bundle that fits you today: when you fill it, you move up to the next one.

€5.66 per client

Example with 150 clients: it costs you €849 a month. What you charge them is up to you: we do not set your selling price.

And on top of that

Any client who wants their own account gets it from you at 30 % off

There is always someone who wants to log in and invoice for themselves. Rather than lose them, you buy it for them at a discount and charge whatever you decide: the margin is yours and you set it. And they still keep you inside their account, so you do their tax work just the same.

Autónomo plan	Price	What you pay
With your practice discount	12 €	€8.40 a month

A flat 30 % off the list price, with no tiers and no minimum: the same from your very first client. And they do not take up a slot in your bundle: because they have their own account, they invite you into theirs instead of sitting inside your client base, so you can have as many of these as you like. Requires a signed reseller agreement — that is what clause 6 bis asks for.

€8.40 a month

What each client costs you. What you charge them is your decision, and the difference is entirely yours: we settle nothing with you because there is nothing to settle.

03 How the two fit together

Each client wherever they fit.

You buy the bundle either way. What you decide, client by client, is whether you do the work or they would rather log in themselves.

	You do the work inside your bundle	They log in with their own account at 30 % off
Who uses Factuza?	You, on their behalf	Your client
Does your client have an account?	Not needed	Yes, their own
Who invoices the client?	You	You
Who answers the first question?	You	You
Who sets the client's price?	You	You
Do you still do their tax work?	Yes	Yes, they invite you into their account
Whatever you set	€5.99/client on 100 clients	€8.40/client
What you make	whatever you decide to charge less that cost	whatever you decide to charge less that cost

The question is never “which one do I buy”, it is who is going to do the work for this client. If they send you the paperwork and you handle it, they go in your bundle, which gets cheaper with volume —at 100 clients, each one costs you €5.99 a month. If they want to log in and invoice themselves, you buy it for them at €8.40 and charge whatever you like. Having some of each is normal, and so is moving someone from one to the other when they change their mind.

04 Your tool

The practice dashboard, with every one of your clients inside it.

A single dashboard for your whole client base
10 users from your practice
Tax returns per client (Modelo 303, 130, 390, 347) and bulk export
Bank reconciliation in Norma 43 format
Signed Facturae 3.2.2 for clients who invoice the public sector
Support within 8 hours and a direct telephone line
No lock-in. Your data leaves whenever you like, in open formats

Access to each client is granted by that client.

Having them in your bundle does not make them yours. Each one grants you a permission —administrator, issuer or read-only— from their own settings, and can change it or end the relationship whenever they want. The permission each person in your practice gets is the lower of the two: theirs and the one the client granted. It never goes up along the way.

And if a client ends up buying their own account, they do not drop out of your list: they stay there, with whatever work you have inside, and you go in with the permission they leave you. They also free up their slot in your allowance, because from then on they run on their own licence — whether they pay for it or you sell it to them at 30 % off.

On the way: direct export to your accounting software (ContaSol). It is in development and we will tell you the day it works, not before.

The tax screen for a client in the bundle, with the return and period selector.

See the whole dashboard, screen by screen →

05 What makes it different

It is the awkward cases that stop you dead at seven on a Tuesday.

You see them every day; almost any program can issue an ordinary invoice and then gets stuck on these. They are solved, with the legislation behind them.

S2

Reverse charge

Construction, scrap metal, intra-Community: no output VAT and the exact legal wording.

RE

Equivalence surcharge

5.2 · 1.4 · 0.5 % applied automatically when the recipient is on that scheme.

key 07

Cash accounting scheme

VAT falls due when you are paid, with the hard cut-off of 31 December the following year.

N1

Disbursements

Fees and costs paid on the client's behalf: outside the net amount, outside the withholding.

IRPF

Withholding at 7 % / 15 %

Only for recipients with a Spanish NIF, and outside the VeriFactu hash, exactly as the rules require.

EU / non-EU

Overseas clients

Business or consumer, goods or services: every combination has its own treatment. Including the trap — an EU consumer is charged Spanish VAT.

art. 20

Exempt supplies

Healthcare, training, insurance… with the correct exemption reason in the record, not a generic “exempt”.

FACe

Signed Facturae 3.2.2

XAdES-EPES validated against the official schema, for invoicing the public sector.

Is one of yours missing? Tell us and we will say whether it is solved, on the way or out of scope. Ask about a case →

06 The deadline

Your corporate clients have a date: 1 January 2027.

Until 31 December 2026, companies issue invoices in Factuza free of charge. The trial ends on exactly the day the law starts to require it.

The self-employed come in on 1 July 2027. If you start with the companies now, you reach that second wave with the process already running smoothly.

Half an hour and we go through it with your figures

07 What you ask us

The ones that always come up.

My clients already have invoicing software

From 12 January 2027, the European Data Act forbids charging anyone for switching software provider. Your clients can take their data away at no cost and within a maximum of 30 days. Switching has never been so cheap.

What if I stop working with you?

There is no lock-in. You export everything in open formats whenever you like. We apply the same rule we have just described.

Do you use AI to calculate the tax?

No. The tax calculation is done by written, auditable rules: you can see where every box comes from. AI does not decide a VAT rate.

Where is the data held?

In Spain. Azure, Spain Central region. The database, the backups and the signing keys: all three there.

Do you comply with the invoicing regulations?

Factuza is the producer of the invoicing software system and, as such, takes on the responsible declaration required by Royal Decree 1007/2023. It is signed and published: you can read it and download it right now, without asking us for it.

What about the foral territories?

The Basque Country and Navarre run their own systems, not VeriFactu. Sign-up tells you so before you pay, not after.

Your clients have to be on VeriFactu. You decide whether that costs you money or earns you some.