Luxembourg is a leading European location for holding companies, funds and regional headquarters, and its compliance regime is detailed. Annual accounts are approved within six months and filed with the Luxembourg Business Registers within seven. Beneficial owners are recorded in a separate register. The corporate tax return follows a different timetable that runs to the end of the following year, and late filings carry both surcharges and interest.

This guide covers the private limited liability company (société à responsabilité limitée, S.à r.l.), the usual vehicle for a foreign-owned subsidiary, and notes where the public limited company (société anonyme, S.A.) and a branch differ. It is written for founders and for legal, finance and operations teams.

Updated November 9, 2026. Luxembourg adjusts rates, thresholds and filing systems from time to time, so confirm the current figures with the Luxembourg Business Registers (LBR) and the direct tax administration (ACD).

Entity compliance Luxembourg: the quick answer

• Approve the annual accounts at the shareholders' meeting within six months after the year-end, and file them with the commercial register within one month of approval, so within seven months in total.

• File the corporate tax return, which professional sources give as 31 December of the year following the tax year, together with municipal business tax and net wealth tax returns.

• Keep the register of beneficial owners (RBE) current, file VAT returns and payroll declarations, and meet any Pillar Two reporting that applies to your group.

What determines a Luxembourg company's compliance requirements?

The legal form, size and activity decide the work. All S.à r.l. and S.A. companies prepare and file annual accounts, but micro and small companies can file in a simplified format, and larger companies are audited. Professional sources give the audit trigger as exceeding at least two of three criteria, which they put at turnover of EUR 8.8 million, a balance sheet total of EUR 4.4 million and 50 employees. Confirm the current figures, because the thresholds are updated from time to time.

Activity matters too. A commercial or craft business needs a business licence before it starts. Holding and financing vehicles must be able to show substance, and groups in scope of the global minimum tax rules have additional reporting duties.

Annual entity requirements in Luxembourg: the core checklist

1. Approval of annual accounts

The board or the managers prepare the accounts and the shareholders approve them within six months after the year-end. A general meeting is mandatory for S.A. companies and for S.à r.l. companies with 60 or more shareholders, while smaller S.à r.l. companies can approve by written resolution, according to law firm guidance. Directors and managers can face sanctions if the accounts are not submitted to the meeting on time.

2. Filing with the commercial register

Accounts must be filed with the register within one month after approval and no later than seven months after the year-end, according to Grant Thornton and other professional sources. Filing is electronic through the LBR. Late filing triggers surcharges, which professional sources describe as EUR 50 in the eighth month, EUR 200 from the ninth to the eleventh month and EUR 500 from the twelfth month. Temporary three-month extensions were granted during the pandemic, but they were exceptional and are not the standard rule.

3. Corporate tax return

The tax return covers corporate income tax, municipal business tax and net wealth tax, and professional sources place the deadline at 31 December of the year following the tax year. Late returns can bring surcharges of up to 10 percent of the tax and fines of up to EUR 25,000, and late payment interest is described as 0.6 percent a month. The combined corporate income and municipal business tax rate is about 24 percent in Luxembourg City according to commonly published rates, so confirm the rate for your municipality.

4. Register of beneficial owners

Companies register their beneficial owners in the RBE, which the LBR maintains, and update it after any change. Professional sources describe penalties for failures, so keep the register aligned with the shareholder records and the group chart.

5. Pillar Two and other reporting

Groups in scope of the global minimum tax rules file a top-up tax and GloBE information return, which professional sources place at 30 June 2026 for the first round of calendar-year groups. Check whether your group is in scope and which entity files.

Tax and indirect tax obligations

The standard VAT rate is 17 percent, which is among the lowest in the EU, and VAT returns are filed monthly, quarterly or annually depending on turnover. Intra-EU transactions require recapitulative statements. Employers withhold wage tax and pay social security contributions to the national social security centre.

Dividends, interest and royalties paid to non-residents may carry withholding tax, with participation exemptions and treaty relief available when conditions are met. Related-party transactions need arm's-length pricing and documentation, and financing arrangements require care because circulars set expectations for the return on intra-group loans.

Foreign-owned subsidiaries

Foreign ownership is open. An S.à r.l. needs a registered office, at least one manager, a notarial deed and minimum share capital, which professional sources describe as EUR 12,000, so confirm the current figure. Foreign corporate shareholders provide apostilled documents. Many groups appoint a resident manager or a professional management company to support substance and tax residence.

Banks and the registers apply due diligence and ask for beneficial owner evidence. Intercompany loans, services and royalties need contracts and pricing support, and the entity's decision-making should happen in Luxembourg where residency is claimed.

First-year and event-triggered obligations

In the first year, the company is incorporated by notarial deed, registered with the LBR, registers with the tax authorities and the social security centre, obtains its business licence if needed, records its beneficial owners and opens a bank account. The first financial year can be longer than twelve months.

Events that trigger filings include a change of managers, a share transfer, a capital change, a change of registered office, a change of articles, a merger and a liquidation. Many changes require a notarial deed and publication in the register's electronic gazette, and ownership changes need an RBE update.

Employment and local requirements

Luxembourg employers register employees with the social security centre, pay contributions and give written contracts. Employees have statutory annual leave, notice periods tied to service, an automatic wage indexation mechanism and, in larger companies, staff delegations. Social security and tax issues for cross-border workers living in neighbouring countries need attention. Many foreign-owned subsidiaries use a local payroll provider.

Record-keeping and governance in Luxembourg

Luxembourg commercial law requires companies to keep accounting records and supporting documents for ten years, according to commonly cited rules, so confirm with your accountant. Keep the statutory registers, the minutes of the board and the shareholders, the signed accounts and the filing receipts. Where a professional management company supports the company, define in writing who prepares the accounts, who files them and who tracks the tax return, because the seven-month register deadline and the end-of-year tax deadline are handled by different people in many groups.

Build a compliance calendar for Luxembourg

A compliance calendar turns the rules above into dated tasks with named owners. Start from the financial year-end and the incorporation anniversary, then add the recurring monthly and quarterly items. Review it each quarter, because deadlines, extensions and registry systems change.

• January to March: close the books and prepare the accounts.

• Within six months of year-end: approve the accounts by meeting or written resolution.

• Within one month of approval and seven months of year-end: file with the register.

• By 31 December of the following year: file the tax return, earlier where the adviser sets a target.

• Monthly, quarterly or annually: VAT returns and payroll declarations.

• After any change: file the register and RBE updates.

Common mistakes

• Missing the seven-month register deadline and paying surcharges.

• Thinking that the six-month approval period can be stretched without consequence.

• Treating the tax return date as the date for the accounts.

• Leaving the RBE out of date after a group reorganisation.

• Underestimating Pillar Two reporting.

• Appointing managers without substance.

Entity compliance Luxembourg: frequently asked questions

When must Luxembourg accounts be approved?

Within six months after the end of the financial year.

When must accounts be filed with the register?

Within one month of approval and no later than seven months after year-end.

When is the corporate tax return due?

Professional sources give 31 December of the year following the tax year.

What are the late filing surcharges?

Professional sources describe EUR 50, EUR 200 and EUR 500 depending on how late the filing is.

What is the standard VAT rate?

17 percent.

What is the RBE?

The register of beneficial owners kept by the Luxembourg Business Registers.

How CoverPin can help

CoverPin helps finance, legal and operations teams track entity obligations across countries. See our international entities overview, learn about compliance advisory, or browse more guides in our legal and compliance resources.

This article is general information, not legal, tax or accounting advice. Confirm current requirements with the relevant authority or a qualified local adviser before acting.