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Glossary

Forty-five words that turn up in your invoices and your tax forms

Each with its one-sentence definition, a worked example with numbers, the mistake that comes up most and the legislation cited with its article. Type above and they filter themselves.

With a link to the ruleNo sign-upThe search runs in your browser

45 terms

Invoicing

9

The documents you get paid with and what each of them really means.

VAT

11

The tax collected on Hacienda's behalf and everything that hangs off it.

VAT charged (cuota repercutida)The VAT you add to the taxable base of your invoice and charge the client, to pay over to Hacienda afterwards.Input VATThe VAT you pay your suppliers on purchases and expenses, deductible only if the goods or the service are used in your activity and you have the full invoice.VAT accrued (IVA devengado)The VAT generated by the period's transactions, regardless of whether the client has paid or not.Devengo (the chargeable event)The moment a transaction is treated as having taken place and the tax obligation arises, regardless of when it is paid for.ProrrataThe percentage of your input VAT you can deduct when your activity combines transactions carrying a right to deduct with exempt transactions.The special prorrata ruleThe method that lets you deduct in full the VAT on expenses used only for transactions carrying a right to deduct, instead of applying a single percentage to everything.Capital goodsTangible goods intended to be used for more than a year as a tool of the trade or means of production, subject to a multi-year adjustment of the VAT deducted.Reverse chargeThe mechanism by which the customer of a transaction, and not the person carrying it out, is the one liable to declare the VAT.Recargo de equivalenciaThe special VAT regime for retailers: they pay a surcharge on their purchases and in exchange they neither file self-assessments nor deduct VAT.Cash basis regimeThe special regime that delays the chargeable event for VAT until payment is received, and the deduction of input VAT until payment is made.Filing periodThe interval each self-assessment is worked out and filed for: quarterly as a general rule, monthly in a defined set of cases.

IRPF and withholdings

5

How an autónomo's earnings are worked out and what they pay Hacienda in advance.

Accounting

6

Books, journal entries, depreciation and the year-end close.

Non-profit bodies

5

What only comes up in associations, foundations and cooperatives.

Regulations

3

Registers, records and checks that have to be done before you invoice.

Payments and banking

6

Direct debits, batches, payment periods and matching the bank statement.

How this glossary is written

A tax glossary is easy to fill and hard to make useful. Most of them repeat the legal definition, which is already in the BOE and which almost nobody understands first time. This one follows three rules.

One: the definition fits in one sentence. It is right at the top of every entry, on the blue background. If you have to read three paragraphs to find out what a prorrata is, the entry is no use.

Two: if the concept is arithmetic, it comes with euros. A percentage with no number beside it means nothing. The examples are worked out and you can follow them with a calculator.

Three: the common mistake is the important part. When somebody searches for “what is a suplido” it is usually because they already have a problem with one. The definition answers the question; the common mistake solves the problem.

And one more rule, which does not show but tells: what cannot be verified does not get written. The self-employed contribution bands, the módulos limits or the amount of the reduced cuota change every January and depend on rules that are sometimes not even approved yet. When one of those figures comes up, this site says so and links to the body, rather than risk someone taking a decision on an old number.

If you are after longer explanations — how to register, how to close a quarter, how to set up an association — they are in the guides. And if what you are looking for is a specific form, in Hacienda's forms.

Questions about the glossary

From the legislation, cited with its article in every entry: the VAT Act and Regulations, the IRPF Act and Regulations, the invoicing regulations, the Código de Comercio, the Plan General de Contabilidad and the acts governing associations, foundations and cooperatives. At the foot of every term are the links to the BOE.
Because they change every year and an out-of-date figure is worse than none. The contribution bands are set by a ministerial order each year and the módulos limits are carried over by a transitional provision. When something depends on the current year, we say so and link to the body that publishes it.
No. All 45 terms are in this page's own HTML and the filter runs in your browser. There are no requests to the server, no analytics on what you type and no third-party suggestions.
Yes. The glossary grows with what people ask about. Write to us at hola@cairos.es with the term and, if it is in our field — invoicing, VAT, IRPF, accounting or non-profit bodies — we will write it.
No. A glossary explains concepts; an adviser applies the rules to your case, which almost always has details no general page can anticipate. What this page does do is start the conversation with your adviser a step higher up.
When the legislation it cites changes. Dated figures — such as the VeriFactu ones, 1 January 2027 for Corporation Tax payers and 1 July 2027 for everyone else — are updated as soon as the amendment is published in the BOE.

From the definition to having it done

Cairos invoices, keeps the record books and works out the tax forms from the same data. Half the terms on this page stop being a problem as soon as the software handles them.

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