The LuxTrust App is listed from €50 for 3 years, and the App card in LuxTrust's ordering catalogue carries a badge saying the product is active within 48 hours. What takes the real time sits in front of that: LuxTrust requires a compulsory legal identity check before the digital identity is issued, done either in person at LuxTrust, at a partner or at a notary, or online by video.
Once a certificate exists you can open a MyGuichet business eSpace, which also needs the company's 13-digit matricule. Nearly everything else in a Luxembourg company's administrative life sits behind those two things: the tax return, the beneficial-owner declaration, the register filings.
Which LuxTrust product to order
LuxTrust sells a private range and a professional range, and founders usually get the choice wrong in the expensive direction. The private App is software on a phone. The professional products are hardware that has to be delivered or collected. The prices below were read off LuxTrust's own ordering pages on 7 August 2026: the individual catalogue, the App page and the professional catalogue.
| Product | Listed price | Validity | What it means in practice |
|---|---|---|---|
| LuxTrust App (private) | from €50 | 3 years | Software on your phone; the catalogue card badges it active within 48 hours |
| Scan (professional) | from €130 | 3 years | A physical device, so there is a delivery step before you can use it |
| SmartCard (professional) | from €160 | 3 years | A card reader and the LuxTrust Middleware are bought separately |
| SmartCard, collected in person | €320 | 3 years | Picked up at LuxTrust's offices instead of delivered; twice the price of the standard SmartCard |
The word "from" is doing work on the App. The catalogue heads that card à partir de, and a separate pass over the same order flow in July 2026 recorded €115 for the App, on the same 3-year term. Budget the higher figure. Treat €50 as the floor rather than the price.
The overspending happens one step later. A private LuxTrust product is accepted in the places founders assume need a professional one: Guichet.lu lists the credentials for creating a business eSpace as a private or professional LuxTrust product, a Luxembourg electronic identity card, or an eIDAS device from another European country, and the Administration des contributions directes states that a LuxTrust product (private or pro) is required both to use MyGuichet and to sign the return.
A €160 SmartCard, plus reader, plus middleware, to do what a phone app already covers is the most common avoidable cost in this whole sequence.
The identity check is the actual lead time
The certificate is not sold like software. It is issued only after the check described above, and those four routes are not interchangeable once a date is in play. An appointment at LuxTrust, at a partner or at a notary depends on someone else's diary.
The online-by-video route depends only on yours, which is why it is the one to pick when a deadline is already visible. LuxTrust also flags that identification at a notary may carry additional costs borne by the applicant, a cost that appears nowhere in the product price.
The 48-hour badge applies to the App specifically. It sits on that card in the catalogue and not on the Scan or SmartCard cards, which are physical objects with a delivery step of their own. So plan in that order: identification first, on a date you control, then activation, then MyGuichet.
MyGuichet: personal space, business eSpace, certified eSpace
MyGuichet.lu is the transactional side of the state. It has three tiers, and founders routinely collapse them into one. Your personal space is opened with your own certificate and runs your founder-side procedures. The business eSpace is a separate space for the company, open to legal persons, the self-employed and associations, and creating it needs the company's 13-digit matricule alongside an accepted credential. Guichet.lu's business eSpace help page, last updated in January 2026, sets out both prerequisites.
Two properties of the business eSpace are worth knowing before you build habits around it. It is collaborative — the administrator can invite other people to join the eSpace and handle procedures inside it, which is the reason never to share a login: delegation is built in, and a shared certificate puts one person's legal signature in somebody else's hands.
There is also a tier above the ordinary eSpace, because some sector services, such as food safety and social elections, are reachable only through a certified business eSpace. Check that before the procedure is in front of you.
The third useful habit is passive: filed procedures show their status inside the space, so the answer to "did that go through?" is a login rather than a phone call.
Without a working certificate, nobody signs the tax return
Filing the corporate return electronically is mandatory via MyGuichet.lu since tax year 2017 for resident capital companies, including the s.à r.l. and the s.à r.l.-S.
It is a single return (modèle 500) covering corporate income tax, municipal business tax and net wealth tax, due by 31 December of the year following the tax year, so the 2026 return falls due on 31 December 2027. The ACD's electronic exchanges page is explicit that a LuxTrust product (private or pro) is required both to use MyGuichet and to sign the return.
That is two separate dependencies wearing one name. The certificate gets you into the portal and it is what signs the return. A manager whose certificate has lapsed does not have a login problem — they have an unsigned return. Filing late carries a supplement of up to 10% of the tax assessed, and the expiry date of a 3-year product is knowable from the day it is issued.
The register layer, and the deadlines behind it
Alongside MyGuichet sits Luxembourg Business Registers for the trade register and the beneficial-owner register. At the RCS, filings are made electronically, and the RBE declaration is made online on the LBR portal using a LuxTrust product, a Luxembourg eID card, or an eIDAS electronic certificate offering at least a substantial level of security. That is the same family of credentials, with the eIDAS route qualified: it must offer at least a substantial level of security.
| Step | Deadline | Official fee | Note |
|---|---|---|---|
| Deposit the articles at the RCS | within 1 month of signature | €10–106, depending on legal form | the RCS tariffs set by grand-ducal regulation are stated exclusive of VAT and are subject to VAT at 17% |
| Declare beneficial owners to the RBE | 1 month | €15 excluding VAT | The law gives LBR 3 working days to register the declaration |
| Register for VAT | 15 days | — | Applies to taxable persons who are not exempt from registration |
| Register as an employer with the CCSS | 8 days | — | This is what obtains the matricule-employeur |
| Declare each new employee to the CCSS | 8 days | — | Same deadline for resident and non-resident staff |
| File the corporate return (modèle 500) | 31 December of the year following the tax year | — | MyGuichet only, signed with a LuxTrust product |
Two practitioner notes on that table. The RBE month does not run from the event: the month runs from the moment the entity became aware, or should have become aware, of the event making the entry or its amendment necessary — not from the date of the event itself.
And the declaration form itself accepts French, German or Luxembourgish only — English is not accepted on the RBE declaration form, so an English-speaking founder who has done every other step in English hits that wall on the last one.
The business permit adds a sequencing trap of its own. The ministry acknowledges an application within 15 days and has 3 months to decide, and the absence of a ministerial reply before the end of the 3-month period counts as a tacit authorisation.
The chancellery duty is €50, payable by card on MyGuichet among other routes. But the articles of association must be registered with the Trade and Companies Register before the permit is definitively granted. The permit file and the register file are not independent queues: a delayed RCS deposit quietly holds up the permit.
Hiring adds one more: every employer wishing to hire staff must declare the vacant post to ADEM, before the job offer is published. The declaration comes first, not after the shortlist.
Common questions
Four things the sequence above tends to leave open.
How much does LuxTrust cost?
The App is listed from €50 for 3 years, with €115 recorded for the same product on the same term in a July 2026 check. Professional products start at €130 for the Scan and €160 for the SmartCard, both for 3 years, with the SmartCard's reader and middleware bought separately.
How long does it take to get one?
The App card is badged active within 48 hours. That clock starts after identification, and identification is a compulsory legal identity check before the digital identity is issued, done either in person at LuxTrust, at a partner or at a notary, or online by video, so the date you can get identified sets the whole timeline.
Can I do this without being in Luxembourg?
The identity check has an online-by-video option, which is the route that does not require a trip. For the MyGuichet side, the accepted credentials are a private or professional LuxTrust product, a Luxembourg electronic identity card, or an eIDAS device from another European country. A founder who already holds a national eID from another European country may not need a Luxembourg certificate at all to reach the eSpace.
How do I activate LuxTrust Mobile?
Activation comes after identification, not before. Order the product, complete the identity check — the online video route is the one whose date you control — and the LuxTrust App then activates; LuxTrust's own catalogue puts a 48-hour badge on that step. The Scan and SmartCard products add a physical delivery step first.
What happens when the certificate expires?
Products in both ranges run 3 years, so the expiry date is known on day one. An expired certificate does not merely lock you out of MyGuichet. It removes the thing that signs the modèle 500, whose deadline is 31 December of the year following the tax year and whose late-filing supplement reaches 10%.
The order to do this in
- Book the identity check first. Everything else queues behind it, and it is the only step whose timing depends on a third party. LuxTrust offers in-person, partner, notary and online-by-video routes; the notary route may carry extra cost.
- Order the private App, from €50 for 3 years, unless a specific tool in your sector demands hardware. It is accepted both for the business eSpace and for signing the corporate return.
- Open your personal MyGuichet space as soon as the certificate is active. The App card's badge says 48 hours.
- Create the business eSpace once the company holds its 13-digit matricule, then invite the people who file for you rather than passing the certificate around. Check early whether your sector needs the certified tier.
- Put the expiry date in the calendar the day the product is issued, 3 years out, next to the 31 December of the year following the tax year return deadline and the rest of the annual cycle.
Luxembourg's digital administration is genuinely good, and it is unforgiving in exactly one way: it assumes the human behind the company holds a valid certificate. Get that in hand before anything else has a date attached to it.