You issue an invoice for €1,000 plus VAT and €1,060 lands in your account. You did not get it wrong and your client did not underpay: they kept €150 and paid it to the Spanish tax agency in your name. That is income tax withholding, and it is probably the concept that creates the strongest "my money is missing" feeling in a freelancer's first year. The good news is that the money has not gone anywhere: it is yours, it is already paid on account of your income tax, and it comes back later. This guide covers when it shows up on your invoices, who pays it in, and how it finds its way back.
What withholding actually is
It is an advance on your income tax, paid by your client on your behalf. It works exactly like an employee's payslip: the employer does not hand over the gross salary, it holds back a share and pays it to the tax agency each quarter. When you invoice with withholding, your client does the same with you. The difference is that you see the full amount on paper and only part of it in the bank, so the advance is far more visible.
Worth internalising early: withholding is not a cost. It does not change how much income tax you end up paying — only when you pay it.
When your invoice carries withholding (and when it does not)
It is not optional and does not depend on preference. Two conditions decide it, and both must hold.
- What activity you carry out. Professional activities (design, law, consulting, translation, photography, freelance development…) carry withholding. Business activities (a shop, a bar, a workshop, an online store) do not.
- Who your client is. Invoicing a company, another freelancer or an entity required to withhold in Spain means the invoice carries withholding. Invoicing a private individual does not: individuals are not required to withhold anything.
| Case | Withholding? |
|---|---|
| Professional invoicing a company or another freelancer | Yes |
| Professional invoicing a private individual | No |
| Business activity (retail, hospitality, workshop…) | No |
| Invoicing a client outside Spain | Generally no |
Which rate applies
The general reference rate is 15 % on the taxable base (not on the VAT-inclusive total). There is a reduced 7 % rate during your first year registered as a professional and the two following tax years. Both are reference figures: check the rate in force for your case and tax year before issuing.
A detail that often slips: the reduced rate does not apply by itself. You have to notify your client in writing, because they are the one paying it in and the one answerable if they withhold too little. And it stops applying once those three tax years are over, with nobody there to remind you.
Other withholdings exist with their own rates and rules — renting business premises, or certain activities under the objective assessment regime. If one applies to you, check its current rate separately: it does not share a percentage with professional withholding.
For where it goes on the document alongside VAT and the other mandatory fields, see the guide on invoice requirements.
Who pays that money in (spoiler: not you)
Your client does. They report the withholdings they have applied each quarter (Modelo 111) and file an annual summary broken down by recipient (Modelo 190). For the withholdings applied to you, you file nothing: you simply record them, because you will need them later.
The mirror image catches many people out: if you are the one paying a professional — your accountant, a designer you subcontract — then you are the one withholding, and you do have to declare and pay it in. It gets discovered late, and with a surcharge, more often than it should.
How the money comes back
It comes back at two separate moments, which is why it can feel like it never does.
- Every quarter, in form 130. Withholdings and payments on account for the period are subtracted directly from the instalment. If enough has been withheld, form 130 comes out at zero: you already advanced through your invoices what the form would have made you advance.
- In the annual return. The sum of the year's withholdings is subtracted from your final tax bill. If withholdings plus instalments added up to more than you owed, the return comes back in your favour.
You can see the effect on your quarter in the form 130 calculator, and the deadlines for each filing in the tax calendar.
The 70 % rule: when withholding frees you from form 130
If you are a professional and at least 70 % of your income in the previous year carried withholding, you may be exempt from filing form 130. The logic is straightforward: if your clients are already advancing your income tax invoice by invoice, also requiring an instalment would mean advancing the same thing twice. This is the usual situation for anyone invoicing almost entirely to companies. How that instalment is calculated, and what happens if you fall below the threshold, is covered in the form 130 guide.
Common mistakes
- Treating withholding as a client discount and inflating the invoice to "make up" for it.
- Forgetting withholding as a professional invoicing a company: the invoice is incorrectly issued and the client can send it back.
- Applying the 7 % without notifying the client, or keeping it past the three tax years.
- Not recording withholdings borne and not subtracting them in form 130 — you would pay the same advance twice.
- Paying a professional without withholding when you are the one required to do so.
- Treating the gross invoice amount as available money instead of what you actually collect.
