Shareholder approval, the form of the deed, updating the beneficial-owner register and the tax on the seller's gain: what really happens when SARL shares change hands.
In short. Selling the shares of a Luxembourg SARL to an outsider requires approval from shareholders holding at least 3/4 of the capital, unless the articles lower that threshold to one half. Between existing shareholders, a transfer is generally free. The deed can be notarised or signed privately. After the sale, two registers must follow: the trade register and the register of beneficial owners, the latter within one month. For the seller, the capital gain is taxable only in certain cases, and Luxembourg exempts the sale of a non-substantial holding kept for more than six months.
One shareholder wants out, a buyer wants in, a parent passes the business to their children. In all three cases it is the same operation: a transfer of shares. It looks simple, a seller, a buyer, a price. In practice it brings in the other shareholders' consent, a precise set of formalities, two registers to update, and a tax treatment that swings completely depending on your percentage and how long you have held the shares. Here is the real path in Luxembourg, so you do not discover a rule once the deed is signed.
How do you transfer shares in a Luxembourg SARL?
Transferring shares in a Luxembourg SARL requires, for a sale to an outsider, approval from shareholders holding at least three quarters of the capital, a written deed (notarised or private), an update of the trade register and of the register of beneficial owners, and then, for the seller, the tax treatment of any capital gain. Between existing shareholders, approval is not required by default.
Approval: who has to say yes
A SARL share is not a listed stock you can sell to anyone. The law starts from a simple idea: shareholders choose who they work with. That is why a transfer to someone outside the company is subject to approval.
In concrete terms, shares can be transferred to non-shareholders only with the consent of shareholders representing at least three quarters of the share capital. The articles of association can soften this rule, but not remove it: they may lower the threshold to half the shares, no further. Between existing shareholders, by contrast, a transfer is free in principle, unless the articles restrict it. This is the first thing to check before quoting a price to a buyer: reread your articles, because they may add a right of first refusal or specific conditions.
This approval mechanism is why a transfer does not close in an afternoon. The shareholders have to be convened or consulted, their consent recorded, and only then can the deed be signed. Skipping this step weakens the transfer, which can be challenged.
The form of the deed and its registration
Good news for the timeline and the budget: in Luxembourg, transferring SARL shares does not require a notary. The deed can be notarised or signed privately, meaning a straightforward written contract between seller and buyer. Many transfers are done this way, with a carefully drafted deed setting the price, the warranties and the conditions.
For the transfer to be enforceable against the company, then against third parties, it must be brought to the company's knowledge and given the required publicity. In practice, the new split of shares is reflected in the trade and companies register (RCS). Registering the deed with the Registration Duties, Estates and VAT Authority gives rise to a fixed registration duty for an ordinary transfer. One case deserves particular care: transferring shares in a company that is mainly real-estate-based (its assets consisting largely of property) falls under a specific regime, to be reviewed case by case with the authority.
Do not treat the drafting of the deed itself as a formality. This is where the price clause, the payment terms, and above all the asset and liability warranty are decided, the warranty by which the seller covers the buyer against debts or risks that arose before the sale but surface afterwards. A deed rushed out on a generic template is a classic source of disputes two years later.
Preparing a shareholder coming in or going out? We frame the operation, the figures and the registers with you, before signing.
Talk about your transferHow the seller's capital gain is taxed
This is the point most sellers discover too late, and it is where Luxembourg stands clearly apart from its neighbours. When a resident individual sells shares for more than they paid, the capital gain is not automatically taxed. It all depends on two things: the size of the holding and how long it was held.
A holding is called substantial when the seller has held, alone or together with their spouse and minor children, directly or indirectly, more than 10% of the capital at any point in the five years before the sale. Below that level, the holding is not substantial. The second criterion is the gap between purchase and sale: six months.
| Seller's situation (resident individual) | Capital gain treatment |
|---|---|
| Substantial holding (over 10% across the 5 years), shares sold more than 6 months after purchase | Taxed at the half-global rate (half the average rate) |
| Shares sold within 6 months of purchase (speculation) | Taxed at the normal rate, under miscellaneous net income; not taxed if the gain stays under 500 € |
| Non-substantial holding (10% or less), shares held more than 6 months | Capital gain not taxable |
In other words, a minority shareholder who has kept their shares for a few years can often sell them with no tax on the gain. A substantial shareholder benefits from a reduced rate rather than the full rate, provided they have passed the six-month mark. The law also provides an allowance against this type of gain; whether it applies and how much depend on your situation, and are confirmed with the Direct Tax Administration. For non-residents, only speculative gains are in principle taxable in Luxembourg, barring a specific situation linked to prior residence and subject to tax treaties.
A useful reminder: these rules concern a sale by an individual holding the shares as private wealth. When the shares sit inside a company, for instance a SOPARFI holding, a different regime applies, with its own exemption conditions. And the tax on the sale should not overshadow the company's own tax, which we cover in our article on corporate tax in Luxembourg.
What changes for the company after the transfer
Signing is not the end of the story. A share transfer changes the ownership, and several obligations are triggered straight away.
The register of beneficial owners must be updated. As soon as the transfer takes a person above or below the 25% threshold, or changes who controls the company, the entity has one month to declare the change. That deadline is short and often forgotten, because the original filing made it look like a closed matter. The penalties, though, are very real now that the register has moved into an enforcement phase. We cover the mechanism and the fines in our guide to the register of beneficial owners in Luxembourg.
The split of shares at the RCS follows as well, and the company updates its own internal shareholder records. One last point that is often missed: the shareholder current account. If the seller had lent money to the company, that claim does not leave automatically with the shares. Its fate (repayment, takeover by the buyer, waiver) has to be settled in the deed, otherwise it becomes a later dispute. This is the kind of detail that costs nothing to handle before the sale and a lot to untangle after.
What are the shares worth? The real question before the price
Between a seller thinking about what they put in and a buyer looking at what the company will earn, the price does not come out of thin air. It is built from the accounts: recent results, cash position, debts, dependence on the departing owner. A very profitable company carried entirely by its founder does not command the same multiple as one that runs without them.
We will not hand you a magic formula here, because no honest one exists. What we do is produce accounts that are up to date and readable, so the negotiation starts from figures both sides recognise rather than a contestable estimate. When bookkeeping is kept in real time, the seller does not have to reconstruct two years of history in a rush, and the buyer runs their review on a clean base. Half the work of a transfer is won there, upstream.
Who this path holds surprises for
Let us be plain about the deals that go wrong. A transfer rushed on a template found online, without shareholder approval where it was needed, without an asset and liability warranty, and without updating the register of beneficial owners, is an operation that exposes both sides: the seller to a claim, the buyer to a bad discovery. Likewise, a company whose assets are mainly property, or an ownership chain several layers deep, falls outside the scope of this article and calls for dedicated legal and tax analysis. In those cases we would rather point you to the right adviser than decide in their place. Our job is to produce accurate accounts and keep the registers current, not to stand in for a notary or a lawyer when the operation requires one.
Accounts ready to negotiate on, registers filed on time, a fee agreed in advance from 325 € per month.
Request your packageFrequently asked questions
Do you need a notary to transfer SARL shares in Luxembourg?
No. A transfer of shares in a Luxembourg SARL can be done by private deed, without a notary. A notarised deed is still possible and sometimes advisable for legal certainty, but it is not mandatory. The deed must, however, be brought to the company's knowledge and reflected in the trade register.
What consent is needed to sell shares to an outsider?
A transfer to a non-shareholder requires approval from shareholders representing at least three quarters of the share capital. The articles of association can lower this threshold to half the shares, no further. Between existing shareholders, a transfer is free in principle, unless the articles say otherwise.
Is the capital gain taxed in Luxembourg?
Not always. For a resident individual, the gain on a non-substantial holding (10% or less) held for more than six months is not taxable. A substantial holding held for more than six months is taxed at the half-global rate. A sale within six months of purchase is treated as a speculative gain, taxed at the normal rate above 500 euros of gain.
What is a substantial holding?
It is a holding of more than 10% of the capital, held by the seller, alone or together with their spouse and minor children, directly or indirectly, at any point in the five years before the sale. This threshold determines how the capital gain is taxed.
What has to be declared after a share transfer?
The change of ownership must be reflected in the trade register, and the register of beneficial owners updated within one month when the transfer changes a person controlling more than 25% of the company. The fate of the seller's shareholder current account must also be settled in the deed.
Read more
- Setting up a SARL in Luxembourg: steps, capital and procedures
- The register of beneficial owners (RBE) in Luxembourg: duties, deadlines and penalties
- Corporate tax in Luxembourg: CIT, municipal business tax and net wealth tax
- Accounting firm in Luxembourg: the complete guide for an SME
- What an accounting firm costs in Luxembourg: fixed fee, hourly rates and hidden extras
Why Advena?
A share transfer is won on the quality of the accounts and on keeping the registers in order, not on a deed signed in haste. We keep the books of Luxembourg SMEs inside the management tool we deploy ourselves, which means figures that stay current and readable the day a negotiation opens. We also follow the obligations around the operation, the register of beneficial owners included. A fee agreed in advance from 325 € per month, a named file manager, no invoice outside the monthly fee. And when the operation calls for a notary or a lawyer, we tell you so plainly.
A shareholder coming in or going out? Let's talk about your accounts and your timeline.
Talk about your caseInformation up to date in October 2026, based on the Guichet.lu factsheets Société à responsabilité limitée (SARL) and Cession de parts d'une société de capitaux, and on the amended law of 10 August 1915 on commercial companies. Tax and company law change over time: check the official source before acting. This article is for information and does not replace advice on your own situation.
