Luxembourg's tax administration has clarified the VAT treatment of photovoltaic installations, outlining how VAT registration, deduction rights and tax obligations vary depending on whether electricity is sold to the grid, consumed privately, shared through energy communities or covered by the small business scheme.
Luxembourg’s tax administration has issued a circular on 1 June 2026, clarifying the VAT treatment of photovoltaic (PV) installations, setting out how VAT obligations and deduction rights apply depending on how the electricity generated by the systems is used.
The circular confirms that PV installations are treated as immovable property for VAT purposes because they must be integrated into a building’s infrastructure. As a result, the VAT position of an operator depends on whether the electricity produced is sold, consumed privately, or shared with others.
Under the guidance, operators who sell all electricity generated by their PV installation to a grid manager are considered taxable persons because they carry out a permanent economic activity. Sales of electricity to the grid are subject to the reduced VAT rate, and operators are entitled to fully deduct VAT incurred on the installation of the system as well as on related maintenance and operating expenses.
By contrast, operators who use all electricity produced for their own household consumption are not regarded as taxable persons. They are therefore not entitled to recover VAT paid on investment, maintenance or operating costs and are exempt from VAT registration, filing and payment obligations. The circular also notes that operators who previously sold electricity but later switch to full self-consumption must deregister for VAT purposes. If the installation is less than 10 years old, part of the VAT previously deducted may need to be repaid under the adjustment rules.
The tax administration also addressed situations involving partial self-consumption, where an operator uses part of the electricity generated and sells the surplus. In these cases, the operator remains a taxable person and retains the right to deduct VAT on the installation and related costs. However, the electricity consumed privately is treated as taxable private use and must be declared at the reduced VAT rate. The taxable amount is based on the current market price of comparable green electricity.
The circular further explains the application of the small business scheme, or franchise, to PV operators. Those with annual turnover of EUR 50,000 or less may opt for the scheme, under which they are not required to charge VAT on their sales or submit periodic VAT returns. They must nevertheless report their annual turnover to the tax administration. Operators choosing this regime cannot deduct or recover VAT paid on the purchase, operation or maintenance of their PV installations.
In addition, the guidance covers electricity-sharing arrangements. Operators who participate in an Energy Community (CE) or a collective self-consumption group (AC) and sell electricity to the group or its members are considered VAT-taxable persons, bringing those transactions within the VAT framework.
The circular provides greater clarity for households and businesses investing in solar energy, particularly on the VAT consequences of different operating models and the conditions under which VAT recovery is available.
