For Amazon sellers filing a Union OSS return

Your VAT Calculation Report, turned into the numbers you actually type into the portal.

Drop in the CSV, enter the ECB rates for the quarter end, and get taxable amount and VAT per country and per rate — with the ambiguous rows flagged. About two minutes a quarter.

See it with sample data
✓Runs in your browser — nothing uploaded.
✓Every country and rate, flags included.
✓Print-ready PDF for the file.
see the difference→
Taxable EUR
176,258.16
VAT EUR
38,004.19
Countries
18
17 more countries 2 flags to check
2 min
Done before your coffee
What used to be an afternoon of pivot tables is now three screens and a PDF.
27
Every member state covered
All EU countries and their standard and reduced rates, including the ones easy to miss.
0
Bytes of your data uploaded
The CSV is read on your own machine. No account, no server, nothing retained.
€39
Once, then never again
No subscription, no per-return fee. Every quarter after this one is free.
How it works

Three screens, no account, no upload.

1Drop the CSV

VAT number, quarter, file. Non-OSS rows are set aside straight away.

1,856 rows read · 14 excluded
2Confirm the rates

One line per non-euro currency. Blanks are flagged, never guessed.

SEK · PLN · CZK · HUF
3Read and export

Taxable and VAT per country and rate, flags to check, then a PDF.

18 countries · 24 rate lines
What you get
∑
Grouped as the portal asks

Country of consumption, then one line per rate — including the reduced-rate lines that are easy to lose.

!
Flags before you file

Multiple dispatch countries, a missing rate, VAT that disagrees with Amazon’s, a country gone negative. In plain language.

−
Refunds stay visible

Negative lines stay negative and marked, so a quarter of heavy returns still reconciles.

⤓
A document, not a screenshot

PDF with VAT number, period and source file in the header, and page breaks that hold.

One-time fee
€39once · no subscription

Pay once, keep the tool. Every quarter after that costs nothing — there is no per-return charge, no seat count and nothing to cancel.

✓Unlimited returns, every quarter, forever
✓All 27 member states and their rates
✓PDF export with a full audit header
✓VAT invoice for your bookkeeping

Buy access

Checkout is handled by Stripe. The moment payment clears you get your private tool URL on screen, and the same link plus your access code by email.

Card · Apple Pay · Google PayVAT invoice issued14-day refund
Already paid?

Your sales data never leaves your browser.

The CSV is parsed locally by JavaScript on your own machine. There is no upload endpoint, no database of your transactions and no analytics on the file. Payment goes to Stripe; the only thing stored on our side is the email address your access code was issued to.

Sales CSVstays on device
Transaction storagenone
PaymentStripe
Stored by usemail + access code
Questions
Which report does it read?

The VAT Calculation Report from Seller Central, as downloaded. Union OSS rows are grouped; everything else is excluded and counted separately.

Does it file the return for me?

No. It gives you the figures and a PDF. Filing stays with you — nothing to authorise, no credentials to share.

Where do the exchange rates come from?

You enter them. The tool asks for the ECB reference rate at the quarter end for each non-euro currency and tells you which ones it needs.

What happens to my sales data?

It stays in your browser. There is no upload endpoint and no copy of your transactions on our side.

Are you affiliated with Amazon?

No. Independent tool, no Amazon branding, not endorsed by them.

Next OSS deadline is the end of the month.
€39 once. Two minutes per quarter after that.