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Automated OSS (One Stop Shop) returns for sellers

All your marketplaces, one single OSS return

Amazon, Temu, eBay, TikTok Shop and Oceges, consolidated into one OSS return ready to file with the Spanish Tax Agency (AEAT). Upload your exports, download it in minutes and forget the spreadsheet.

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No commitment Free plan, no card Encrypted data

OSS return

One Stop Shop · AEAT

Ready to file

Works with the exports from the channels you already sell on

Amazon
Temu
eBay
TikTok Shop
Oceges
5

marketplaces in 1 file

1

consolidated OSS return

OSS

classified by VAT rate

0

commitment · cancel anytime

The result

This is exactly what you get

Your OSS return ready to file with the AEAT, plus a multichannel spreadsheet that backs every figure.

DR_UN_B12345678_2026_2T.txt AEAT-valid
# OSS return · Union scheme · Q2 2026
36901B12345678SOPNEZ SL          2026 2T
36905ES FR 20,00   1.250,00      250,00
36905ES DE 19,00     980,00      186,20
36905ES IT 22,00     640,00      140,80
36905ES BE 21,00     410,00       86,10
# 4 marketplaces consolidated · reconciled OK
informe_ventas_2026_2T.xlsx Summary by regime
Channel Regime Base VAT
Amazon OSS 1.250,00 250,00
Temu OSS 980,00 186,20
eBay Domestic ES 2.100,00 441,00
TikTok OSS 640,00 140,80
Consolidated total 4.970,00 1.018,00

Illustrative example of the format. Your figures come from your own exports.

The problem

Selling on several marketplaces is easy. Filing everyone's VAT isn't.

Every platform exports its sales its own way. And at quarter-end, the problem is always yours.

Export chaos

Amazon one way, Temu another, eBay and TikTok with their own formats, your ERP with its own. Five different files you reconcile by hand in a spreadsheet that grows every quarter.

EU VAT is unforgiving

The One Stop Shop (OSS) classifies by VAT rate, not by country. A single mistake turns your OSS return into a problem with the tax office you only notice when the penalty arrives.

Hours you don't get back

Every OSS filing eats up days of copy, paste and filter. Time you spend not selling, with the nagging doubt: am I even filing this right?

How it works

From your exports to your OSS return in three steps

Nothing to install. No formulas. No copy-paste.

Upload your exports

Drag in the reports from Amazon, Temu, eBay, TikTok Shop or Oceges exactly as they come. We understand each format.

We classify your OSS

We detect your intra-EU sales, ask whether you are registered for OSS, and classify each sale by VAT rate.

Download OSS return + Excel

You get the OSS return file ready to file with the AEAT plus a multichannel spreadsheet. Review it, file it, back to selling.

The change you'll feel in your first quarter

By hand

  • A different spreadsheet for each marketplace
  • Classifying OSS sale by sale
  • Reconciling totals and hoping it adds up
  • Lost hours and doubts with the tax office

With MyTaxEU

  • Upload every export in one place
  • OSS is classified for you by VAT rate
  • One single OSS return that reconciles
  • Ready to file with the AEAT in minutes

All your marketplaces, one single OSS return

It's not a template or a calculator. OSS is classified the way the tax office requires —by VAT rate— and you get a file ready to submit, with its backing spreadsheet.

OSS return ready to file

A file in the format the Spanish Tax Agency expects. Download it, review it, submit it.

Multichannel sales spreadsheet

A traceable report to see where every figure comes from and keep as backup.

OSS by VAT rate

Correct classification of your intra-EU sales, not a crude grouping by country.

No commitment

Monthly plan you cancel anytime. Annual with two months free if you would rather save.

Grow at your pace

Start with one marketplace and add the rest for €5/mo when you need them.

Your data, encrypted

Used only to generate your returns. We don't sell or share it.

Pricing

Pay only for the marketplaces you use

Compra créditos cuando los necesites. Sin suscripciones. Cada crédito procesa un mes de un marketplace. Caducan a los 12 meses.

Crédito individual

desde 20 €/crédito

desde 25 €/crédito

+ 5 € por marketplace extra

Start free

Free trial plan · No card · No commitment

Pack 5 créditos

−10%

desde 18 €/crédito

desde 22,50 €/crédito

+ 5 € por marketplace extra

Start free

Free trial plan · No card · No commitment

Pack 12 créditos

−15%

desde 17 €/crédito

desde 21,25 €/crédito

+ 5 € por marketplace extra

Start free

Free trial plan · No card · No commitment

Normal cubre Amazon. Pro cubre Amazon + los marketplaces que elijas.

Why trust it

Built to comply with the tax office

No filler testimonials. These are the real reasons:

AEAT-valid file

The OSS return is generated in the format the Spanish Tax Agency expects for submission.

OSS done right

We ask whether you are registered for OSS and classify by VAT rate, as the One Stop Shop requires.

Encrypted data, under your control

Your files are handled with encryption and used only for your returns. You decide what you upload and when you delete it.

Frequently asked questions

Answers about the OSS return

What sellers ask us most before getting started.

Can't find your answer? Write to us and we'll help →

Your next OSS return, without spreadsheets or surprises

Try it free with your own sales. No card, no commitment, and the OSS return included from the very first plan.

Start free

You'll upload your first export in under a minute.

Start free · no card