VAT one-stop shop in Luxembourg: OSS for e-commerce

What is the VAT one-stop shop in Luxembourg?

The VAT one-stop shop in Luxembourg, known by its acronym OSS for One-Stop Shop, is an electronic system allowing a taxable person to register in a single Member State in order to report and pay there the tax due to consumers in all the other Member States, instead of registering in each of them. Using it is optional.

The mechanism comes down to three steps: one electronic registration in a single Member State covering all eligible transactions, one return for those transactions, one payment. The authority of the Member State of identification then allocates the tax between the Member States of consumption. For a Luxembourg online seller selling into Belgium, France and Germany, that means one registration instead of four.

The one-stop shop does not replace the Luxembourg return. Domestic transactions, purchases and tax due under the reverse charge continue to appear in the VAT return filed through eCDF. OSS is a second, parallel filing channel, reserved for eligible cross-border supplies to consumers. Confusing the two leads to reporting the same sale twice, or to reporting it nowhere.

The EUR 10,000 threshold moves VAT to the customer's country

The EUR 10,000 threshold excluding tax decides the country of taxation: below it, the distance sales of a seller established in Luxembourg remain taxable in Luxembourg; above it, the tax becomes due in the consumer's Member State, at that country's rate.

The threshold has one feature we regularly see missed on engagements: it is not tested country by country, it aggregates. Telecommunications, broadcasting and television services and electronically supplied services are added to intra-Community distance sales of goods, across consumers in all the other Member States. A shop selling EUR 4,000 into Belgium, EUR 4,000 into France and EUR 3,000 into the Netherlands has crossed the threshold, although none of those three countries accounts for a third of it.

The threshold is measured over the current calendar year or the previous one: two years at a time, as for the national exemption. The seller may also opt straight away for taxation in the consumer's Member State, in which case that country's VAT applies from the first sale, whatever the amount. The commitment period attached to that option could not be confirmed on an official source: it is flagged in the last section rather than stated here. On purely national thresholds, our article on the VAT exemption and the EUR 50,000 threshold completes the picture.

The three one-stop shop schemes do not target the same sellers

The one-stop shop comes in three distinct schemes: the Union scheme, the non-Union scheme and the import scheme, known as IOSS. The choice does not follow from the activity carried on but from where the seller is established and where the goods come from.

The Union scheme is the one that concerns almost every seller established in the Grand Duchy. It covers services supplied to consumers resident in the Union where the supplier is not established in the Member State of consumption, intra-Community distance sales of goods, and supplies of goods whose departure and arrival are in the same Member State where they are made by a deemed supplier, that is, by an electronic interface treated as having itself acquired and resold the goods.

The non-Union scheme is reserved for taxable persons with neither the seat of their economic activity nor a fixed establishment in the Union, for the services they supply to consumers in the Union. The import scheme, IOSS, covers distance sales of goods imported from third countries where the intrinsic value of the consignment does not exceed EUR 150; a taxable person may or must appoint an intermediary established in the Community, who becomes liable for the tax and discharges the obligations of the scheme on their behalf. Above EUR 150 per consignment, IOSS is not available.

How do you register for the one-stop shop from Luxembourg?

Registering for the one-stop shop from Luxembourg goes through the VATMOSS portal, a module of the eTVA system run by the Registration Duties, Estates and VAT Authority. Access to eTVA must be obtained beforehand, using a professional LuxTrust certificate.

The order of the steps matters, because none of them can be improvised. The taxable person first applies for access to the eTVA system by professional LuxTrust certificate with the authority, then files the registration application on VATMOSS. A taxable person not established in the Union, who is not and need not be registered for VAT in Luxembourg, starts further upstream: they request a national registration number from the competent office, which then allows them to order their professional LuxTrust certificate and open their eTVA access.

The effective date follows one simple rule and one useful exception. The scheme applies in principle from the first day of the calendar quarter following the registration application. By way of exception, it applies from the first covered transaction if the taxable person informs their Member State of identification by the tenth day of the month following that first transaction. That is precisely where we see files come unstuck: ordering a professional LuxTrust certificate and opening eTVA access are not a forty-eight hour matter, and a seller who opens their shop without having started them discovers the ten-day exception once it has lapsed. Starting those steps at VAT registration, before the first cross-border sale, costs nothing.

What are the one-stop shop filing and payment deadlines?

One-stop shop returns are quarterly under the Union scheme and the non-Union scheme, monthly under IOSS, and must be filed before the end of the month following the end of the period reported. Payment goes with the return.

Three rules govern their content. The return is expressed in euros, including for sales made in a Member State that has not adopted the euro. It must be filed even where there is nothing to report: with no transaction for the period and no correction to make, the taxable person files a nil return. Lastly, corrections relating to an earlier period are not made by reopening the old return, but in a later return, within three years of the legal filing date of the original return.

The price of that filing simplification is documentary: records of the covered transactions are kept for ten years. The audit trail must make it possible to reconstruct, sale by sale, the consumer's country, the rate applied and the period reported. That is as much an accounting software configuration question as a tax one: a shop unable to split its sales by country of destination cannot complete the return, whichever scheme it chooses. On the deadlines of the Luxembourg channel, our article on VAT return frequency sets out the three national regimes.

The one-stop shop does not recover input VAT

The one-stop shop return covers only the tax due: it opens no deduction of the tax paid on inputs. In Luxembourg, only Luxembourg VAT is deductible, and it is deductible in the Luxembourg return.

Tax borne in another Member State is recovered through the intra-Community refund procedure under Directive 2008/9/EC: a taxable person established in Luxembourg files the claim from Luxembourg, and the authority of the Member State concerned rules on it. That is a separate procedure, with its own calendar and its own supporting documents. A seller holding stock in a warehouse located in another Member State, or buying advertising there, bears a local tax that the one-stop shop will never give back.

That limit has a consequence for method. The one-stop shop simplifies the filing obligation, not the bookkeeping: you must still separate the tax collected by country of destination, the deductible Luxembourg tax and the foreign tax to be claimed through another route. We regularly see files where the foreign tax was simply expensed, for want of identifying the refund procedure in time. The amount is rarely spectacular; it is lost through nothing more than a gap in follow-up.

What the ViDA reform changes for the one-stop shop

The ViDA reform widens the one-stop shop beyond e-commerce: Council Directive (EU) 2025/516 of 11 March 2025 provides in particular for a new one-stop shop scheme designed to simplify the obligations attached to certain transfers of a taxable person's own goods to another Member State.

The problem it addresses is familiar to any seller holding stock abroad. Transferring their own goods to another Member State, in particular for the purposes of activities connected with e-commerce, currently requires registration in the Member State of departure as well as in the Member State of destination. The new scheme is meant to absorb that obligation into the one-stop shop. The directive also provides for cases in which Member States may provide that, under the reverse charge mechanism, the recipient of the supply rather than the supplier reports the tax due.

The timetable is staggered, and it reads by article of the directive rather than by measure. Member States adopt and publish by 31 December 2026 at the latest the provisions needed to comply with Article 2, and apply them from 1 January 2027; for Article 3, adoption comes by 30 June 2028 at the latest and application from 1 July 2028, point 1) of that article being applicable at the earliest from 1 July 2028 and at the latest from 1 January 2030. We were unable to read the full text of the directive from our drafting environment: no individual measure is therefore tied here to an individual date, and no Luxembourg transposition has been verified to date.

Sources and verification

Written for Financial Services Luxembourg and reviewed before publication by Mickaël LOC, licensed accountant (authorisation 10077274). The thresholds, schemes, registration steps and deadlines cited here were verified on 17 September 2026 against the official sources listed below.

On the indirect tax portal pfi.public.lu: the page on the one-stop shop (OSS), for the definition of the system, for the optional nature of its use, for electronic registration in a single Member State, the single return and the single payment, and for the EUR 10,000 annual threshold excluding tax aggregating telecommunications, broadcasting and television services, electronically supplied services and intra-Community distance sales of goods, tested over the current or the previous year; the page on the different one-stop shop schemes, for the scope of the Union scheme, the non-Union scheme and the import scheme, for the EUR 150 intrinsic value per consignment, for the intermediary established in the Community, for the quarterly return under the Union and non-Union schemes and the monthly return under the import scheme, for filing before the end of the month following the end of the period, for the nil return, for returns being expressed in euros and for corrections to earlier periods within three years of the legal filing date; the page on Luxembourg as a Member State of identification, for the registration application through the VATMOSS portal, for prior eTVA access by professional LuxTrust certificate, for the national registration number of taxable persons not established in the Union, for the effect on the first day of the calendar quarter following the application and for the exception where the first transaction is notified to the Member State of identification by the 10th of the following month; the page on the extension of the Mini One-Stop Shop to the One-Stop Shop, for the merger of the MOSS and OSS functions into the VATMOSS application; the authority's leaflet on the one-stop shop, for the ten-year retention of records. On guichet.public.lu: the page on supplies of goods, for origin taxation below the threshold, destination taxation above it and the option available from the first sale; the page on deducting input VAT, for the rule that only Luxembourg VAT is deductible in Luxembourg; the page on refunds for intra-EU transactions, for the refund procedure under Directive 2008/9/EC. Council Directive (EU) 2025/516 of 11 March 2025 is cited from EUR-Lex, for the new one-stop shop scheme applicable to certain transfers of own goods, for the reverse charge and for the adoption and application dates of its Articles 2 and 3.

Four limits must be flagged. The primary texts were not read at source: the PDF files on pfi.public.lu and the legilux.public.lu portal are unreachable from our drafting environment, and those sources were consulted through indexed extracts; no article numbering of the amended law of 12 February 1979 on value added tax is therefore cited here. The commitment period attached to the option for taxation in the consumer's Member State was not confirmed and is deliberately not stated. The penalties incurred for late filing of a one-stop shop return, and the conditions for exclusion from a scheme, could not be established on an official source and are not asserted. Lastly, the full text of Directive (EU) 2025/516 could not be read: the dates above hold by article of the directive and tie no specific measure to a specific deadline. Readers can confirm these points on pfi.public.lu, on guichet.public.lu, on legilux.public.lu and on eur-lex.europa.eu.

This article states the law as it stands at the date of publication. Thresholds, schemes and deadlines change, and any decision binding your structure must be checked on the date you rely on it. Report an error to contact@financialservices.lu: the correction is dated in the article.