Equivalence Surcharge: What It Is, Who Applies It and Why Retailers Don’t File Form 303

If you run a shop, a newsstand or any other business that sells to the public, and your supplier invoices you an extra percentage of VAT that you don’t understand, you are dealing with the equivalence surcharge (recargo de equivalencia). It is a special VAT scheme designed to simplify the tax life of small retail businesses. This guide explains how it works, who it affects and what obligations it carries in 2026.

What the equivalence surcharge is and who is required to apply it

The equivalence surcharge is a special VAT scheme under which the retailer does not settle VAT on their own account: the supplier pays it in their place, charging on the invoice the usual VAT plus an additional surcharge. This way, the tax authorities collect the tax at an earlier stage and avoid having to monitor thousands of small sellers.

It is mandatory (you can’t opt in) when the following conditions are met:

• You are a natural person (self-employed), or an entity under the income attribution regime, such as a community of property owners or a civil partnership with certain characteristics. Commercial companies (S.L., S.A.) are excluded.
• Your activity is retail trade: you buy products and sell them to the final consumer without substantially transforming them.
• At least 80% of your sales are made to customers who are neither businesses nor professionals.
• You are not under another scheme that is incompatible with this one (for example, the flat-rate “modules” scheme for that same activity, or an express waiver).

If, besides selling, you transform the product (a workshop that repairs and sells parts, a restaurant), or you regularly sell to other businesses, this scheme does not apply to you. Nor does it apply to every product: VAT regulations list the retail activities that are covered, so it is worth checking your IAE (business activity tax) heading before taking anything for granted.

How the supplier invoices and which rates apply

Your supplier adds to the invoice, on top of the taxable base, the VAT rate that applies to the product plus the equivalence surcharge, which varies depending on the VAT rate applied to the product. The surcharge rates in force are set by the VAT Act; always confirm them in the legislation or with your advisor, as they may change.

An example with round numbers and purely illustrative assumptions: you buy goods with a taxable base of €1,000 subject to the standard 21% rate.

• Taxable base: €1,000
• VAT at 21%: €210
• Equivalence surcharge at 5.2%: €52
• Invoice total: €1,262

That €262 (VAT plus surcharge) is a final cost to you: you can neither deduct it nor recover it later. And when you sell, you do not charge VAT to your customers: your receipts and simplified invoices show no VAT breakdown, and the price you set already includes that cost. That is why, in your margins, input VAT and the surcharge behave as part of the purchase price.

Why you don’t file Form 303 (and what you do have to do)

The most convenient practical consequence of the scheme is that a retailer under the equivalence surcharge does not file quarterly VAT returns (Form 303) for that activity, nor the annual summary return (Form 390), nor do they keep VAT record books. The reasoning is simple: since you neither charge VAT nor can deduct input VAT, there is nothing to settle with the tax authorities.

That doesn’t mean you have no obligations. You must still:

• Be registered in the census (Form 036 or 037) with the scheme correctly reflected.
• Keep your purchase invoices, which must show the surcharge itemised.
• File your income tax return and, if you are self-employed under the direct assessment method, the quarterly personal income tax instalments (Form 130, or whichever applies to your case).
• Keep the accounts or the income and expense books required under your income tax scheme.

Watch out for the most common mistakes:

• Trying to deduct the surcharge or input VAT: it is not deductible for VAT purposes (though it does form part of the expense for income tax).
• Not checking the invoice: if the supplier doesn’t itemise the surcharge, something is wrong and you should ask for a corrected invoice.
• Forgetting mixed activities: if, besides retail, you carry out an activity under the general scheme (for example, you provide services), you will have VAT obligations for that part, and the operations will need to be kept separate.
• Intra-EU purchases or purchases from private individuals: these have specific treatment and do not fit the “supplier who charges the surcharge” model.

At Zythos Business we help self-employed professionals and SMEs get their VAT scheme right from registration, check that supplier invoices carry the surcharge correctly applied, and spot when a mixed activity requires filing Form 303 for part of the business. If you have doubts about which scheme applies to you in 2026, we will review it with you using your real figures.