Luxembourg's 2026 Tax Package: The 20% Start-Up Credit, Higher Pension Bills, and the VAT Bar You Operate Under

If you run a micro-business in Luxembourg, invest in local start-ups, or employ even one person there, your 2026 numbers look different from last year's. A euro you put into a qualifying young company can now come back to you as a 20% income tax credit. Every payroll run costs a little more, because pension contributions rose on 1 January. And the VAT exemption line you plan your turnover around sits at 50,000 euros a year — high enough to matter, low enough to trip over if you are growing fast.

This guide walks through the measures that actually touch small businesses, freelancers, and individual investors: the new start-up credit, the pension and social security changes, the VAT small-enterprise scheme as it stands in 2026, and the smaller items worth a line in your books.

The 20% Start-Up Tax Credit: Luxembourg Pays You to Be an Angel​

The headline measure for investors is a brand-new income tax credit for individuals who put money into young, innovative companies. Enacted as Bill 8526 in December 2025, it applies to qualifying investments made from the 2026 tax year onward.

What investors get​

The mechanics are simple on the surface:

• Credit rate: 20% of the eligible investment.
• Annual cap: the credit cannot exceed 100,000 euros per tax year. If the credit is bigger than the tax you owe, the unused portion of the cap can be carried forward.
• Minimum ticket: 10,000 euros per start-up entity per tax year.
• Maximum exposure per company: eligible investment is capped at a 30% ownership stake and 1.5 million euros per start-up entity.
• Holding period: you must hold the investment for at least three years.
• Form: only investments in share capital and share premium count, made by acquiring new, fully paid-up, registered (nominative) shares or units — either at incorporation or during a capital increase. The investment must be held directly, or proportionally through tax-transparent vehicles.

Put concretely: a 50,000-euro investment in a qualifying capital increase earns a 10,000-euro credit against your Luxembourg income tax. A 500,000-euro investment earns the maximum 100,000-euro credit.

Which start-ups qualify​

Not every young company counts. An eligible entity must meet all of these conditions:

• It is a capital company or a cooperative company.
• It was established fewer than five years ago.
• It employs at least two people and fewer than 50.
• Its annual turnover or balance sheet total is below 10 million euros.
• It is fully taxable and resident in Luxembourg or elsewhere in the European Economic Area (extra conditions apply to EEA companies outside Luxembourg).
• At least 15% of its total operating expenses went to research and development in at least one of the three fiscal years before the tax year of the credit claim.

And several categories are explicitly excluded: law firms, audit firms, and accounting firms; companies principally engaged in real estate; investment companies in risk capital (SICARs); listed entities; companies formed by merger or demerger; entities that have distributed dividends or reduced capital (except to offset losses); entities subject to unresolved EU state-aid recovery orders; and companies classified as undertakings in difficulty under EU Regulation 651/2014.

If the start-up belongs to a group, an approved auditor or chartered accountant must certify the headcount and turnover or balance-sheet figures.

Who can claim it — and who cannot​

Eligible investors are Luxembourg resident individuals, plus non-resident individuals who qualify for assimilation to residents under article 157ter of the income tax law. Two groups are carved out: employees and founders of the start-up cannot claim the credit on their own company. The government has said a separate draft bill on start-up stock options would go to Parliament in early 2026, aimed at that gap.

The paperwork both sides must handle​

This is not a credit you claim on trust. The start-up must issue you a certificate confirming the ownership cap and minimum investment threshold within two months, plus a second certificate after year-end confirming the eligibility conditions held for the full tax year. The 15% R&D spending test must be certified by an approved auditor or chartered accountant. If you run a start-up planning to raise from angels, build these certificates into your closing checklist — your investors' credits depend on your paperwork.

Pension Contributions Rose on 1 January — Budget for It​

The pension reform (Bills 8634 and 8640, adopted December 2025) raised the money every employer and employee pays into the system:

• Contribution rate: up from 24.0% to 25.5% in total, i.e. from 8.0% to 8.5% each for the employee, the employer, and the state. The higher rate applies from 2026 through 2032, with another review of the pension system scheduled for 2030.
• Statutory retirement age: unchanged at 65.
• Early retirement at 60: from 1 July 2026, the mandatory contribution period gets gradually longer — one extra month in 2026 and 2027, then two extra months per year from 2028 to 2030, for a total of eight additional months. Early retirement terms from age 57 are retained.
• Reward for staying on: if you are eligible for early retirement but keep working until 65, a new employment-retention allowance cuts your taxable income by up to 9,000 euros a year (750 euros a month).
• Third-pillar savings: the annual tax-deductible ceiling for private old-age pension contributions rises from 3,200 to 4,500 euros — extra room worth using if you are self-employed and building your own retirement provision.

For employers, the practical step is unglamorous but urgent: confirm your payroll calculations reflect the 8.5% employer share from the first 2026 pay run, and reconcile any January payroll processed under the old rate. The profit-sharing bonus got a small administrative break too — the list of employees who received it now goes to the tax authorities once a year before 1 March, instead of after every payment.

The VAT Line Micro-Businesses Operate Under in 2026​

Here is where precision matters. Luxembourg did not raise its VAT registration threshold in 2026 — it raised it the year before, and 2026 is the year you live with the consequences. Under the EU small-business VAT reform in force since 1 January 2025, businesses established in Luxembourg with domestic annual turnover at or below 50,000 euros can opt for the special scheme for small enterprises: no VAT charged on sales, no input VAT recovered, and far simpler filings. Cross that line and you must register, charge VAT, and file returns on the applicable rhythm.

Three details that catch growing businesses out:

1. The threshold is domestic turnover. Only turnover generated in Luxembourg counts toward the 50,000-euro national limit.
2. There is a 10% tolerance. A modest overshoot does not instantly eject you from the scheme — but track turnover monthly anyway, because sustained growth past the buffer means registration.
3. Selling into other EU countries has its own scheme. Under the cross-border SME scheme, a Luxembourg business can also claim small-enterprise VAT exemption in another Member State, provided total EU turnover stays at or below 100,000 euros and turnover in that state stays below its national threshold. The mirror rule lets EU businesses claim the exemption in Luxembourg if their Luxembourg turnover is under 50,000 euros.

Looking ahead, the EU's VAT in the Digital Age (ViDA) package will require structured e-invoices for intra-EU B2B transactions from 1 July 2030, with digital platforms becoming deemed suppliers for short-term rentals and passenger transport from July 2028. Luxembourg may set an earlier date for domestic B2B e-invoicing. If your invoicing process is still PDFs attached to emails, 2026 is the year to start planning the upgrade — not 2029.

Smaller 2026 Items Worth a Line in Your Books​

• Defense-bond interest exemption. Interest earned by Luxembourg resident individuals on qualifying highly rated euro-denominated sovereign bonds is exempt from income tax, including the 20% RELIBI withholding regime — but only for bonds issued and subscribed between 15 January and 15 February 2026 with a three-year maturity. The subscription window has closed; if you bought in, the exemption runs with the bond.
• New carried-interest regime is live. Parliament adopted Bill 8590 on 22 January 2026 with effect from 1 January 2026. Contractual carried interest is taxed at roughly a quarter of the standard global rate (an effective rate of about 11.5%), while participation-linked carry tied to a fund stake can be fully exempt if the conditions are met. Relevant if you manage or advise alternative funds.
• Green incentives. The CO2 tax credit rises from 192 to 216 euros, and the depreciation rate for eligible sustainable-energy renovations of rental property jumps from 6% to 10%, where the renovation was completed fewer than nine years ago.
• On the horizon. The government announced a further 1-point corporate income tax cut planned for 2027, and a move to a single individual tax class targeted for the 2028 tax year, with a draft bill expected during 2026. Neither changes your 2026 return, but both belong in multi-year planning.

Your 2026 Luxembourg Checklist​

Turn the package into action items and diary dates:

1. Payroll: verify the 8.5% employer pension share is applied from January 2026 and true up any early runs processed at 8.0%.
2. Turnover watch: if you use the VAT SME exemption, reconcile turnover against the 50,000-euro domestic threshold every month — growing past it mid-year without registering is the classic micro-business VAT error.
3. Angel paperwork: investing in a start-up? Confirm the company meets the eligibility tests before you wire funds, diary the three-year holding period, and chase the two certificates. Raising as a start-up? Line up your auditor for the R&D certification early.
4. Retirement top-up: revisit third-pillar contributions against the new 4,500-euro ceiling before year-end.
5. E-invoicing roadmap: map how your current invoicing would move to structured e-invoices, especially if you trade across borders.

Keep Your Cross-Border Books Organized from Day One​

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