Solar Tax Credits in Europe 2026: VAT Relief and Deductions by Country

Europe has no single solar tax credit. Germany and the Netherlands apply 0% VAT (value-added tax, a sales tax) to qualifying home solar. France applies 5.5% up to 9 kWp, and the UK applies 0% until 31 March 2027. Italy, Spain and Poland use income-tax deductions, which lower your tax bill. Italy gives 50% or 36%. Spain gives 10% or 20% for 2026. Poland allows up to PLN 53,000 of spend.

This page covers Europe. For the US federal credit, see the investment tax credit glossary entry.

Compare the benefit type before comparing the percentage

A zero VAT rate changes the tax charged on an eligible supply. A deduction from taxable income changes the amount that is taxed. A credit or deduction from tax liability lowers the tax you owe, under its own conditions. A grant pays approved support. Export remuneration pays for electricity you sell. These are different cash flows. So adding their headline percentages gives no net installation cost.

This guide covers selected home solar (photovoltaic) measures in Germany, Italy, France, Spain, the Netherlands, the United Kingdom and Poland, with Slovakia added for comparison. It does not cover tax for commercial projects. Check the customer’s installation, payment and filing dates against the rule before you issue a proposal.

Selected country rules at a glance

A rate in this table does not on its own entitle a customer to the benefit. The sections below give the rules behind each row.

Germany: 0% VAT for qualifying supplies

§ 12 (3) of the German VAT Act (UStG) sets the VAT rate at 0% for the supply of solar modules to the operator of a PV system. This includes the components the system needs to run, and storage for the electricity the modules produce. The system must be installed on or near private homes, flats, or public and other buildings used for common-good activities. Installing the PV system and storage is also zero-rated when the supplied components qualify.

30 kWp is a deemed-qualifying size, not a maximum. The statute treats the conditions as met when the gross output listed in the Marktstammdatenregister (Germany’s official energy plant register) is 30 kWp or less. A larger system has to meet the building and use conditions on its own merits.

The VAT rule covers the supply and installation only. Income-tax treatment, depreciation and feed-in remuneration follow separate rules.

Italy: renovation deduction with stepped rates

The Agenzia delle Entrate guide of February 2026 lists installation of photovoltaic systems and storage among the works eligible for the building-recovery deduction. Agenzia delle Entrate is Italy’s tax agency. The rate and cap depend on when the spend is paid:

You claim the deduction in ten equal annual instalments. The higher rate needs ownership or a real right at the start of works. A real right is a legal right over a property, such as usufruct, use or habitation. So a cohabiting relative or a tenant gets the lower rate. For example, take EUR 10,000 of eligible spend on a principal residence, paid in 2026 by its owner. That gives a EUR 5,000 deduction (10,000 × 50%), or EUR 500 a year over ten years. At 36% the same spend gives EUR 3,600, or EUR 360 a year.

The guide lists a photovoltaic system as eligible when it is installed to meet the home’s energy needs and serves the home directly. See also our Italy solar ROI guide for project cash flows.

France: 5.5% VAT with equipment conditions

Service-Public says that since 1 October 2025 a 5.5% VAT rate applies. The rate was 10% before that date. It applies if the installation is 9 kWp or less (about 25 panels). The panels’ carbon footprint must be under 530 kgCO2e/kWp (kilograms of CO2 equivalent per kWp), silver under 14 mg/W, lead under 0.1% and cadmium under 0.01%. The installation must include an energy-management system (EMS) that matches consumption to solar production.

Ask for equipment evidence and name the EMS in the quote. Take a EUR 10,000 installation before VAT. With 5.5% VAT, the invoice is EUR 10,550 (10,000 × 1.055). At the earlier 10% rate it was EUR 11,000. That is a difference of EUR 450.

Spain: a 2026 self-consumption deduction

The AEAT bulletin on Royal Decree-law 7/2026 describes a new income-tax deduction for renewable self-consumption systems installed, finished and paid in 2026. AEAT is Spain’s tax agency. The consolidated legislation, article 36, sets the conditions.

• Rates: 10% for an installation on a property the taxpayer owns, 20% for a home in a predominantly residential building. One installation cannot take both.
• Base: amounts paid between 1 January and 31 December 2026, storage included, up to EUR 5,000 a year. The base is the cost the deduction is worked out on. Equipment, installation costs and the necessary works count.
• Subsidies: publicly subsidised amounts come off the base.
• Payment and permits: cash is excluded. All permits and the electrical installation certificate (CIE) must be in place.
• Exclusions: systems tied to an economic activity.
• Compatibility: the deduction cannot be used for the same installation as the housing energy-efficiency deductions.

For example, take an installation costing EUR 7,000 on a home in a residential building. The deduction base is capped at EUR 5,000. So the 20% deduction is EUR 1,000 (5,000 × 20%). On an owned property outside that category, the 10% rate on a EUR 5,000 base gives EUR 500. Export compensation is a separate cash flow. See the Spanish residential solar explanation.

Netherlands: 0% VAT on or near a home

The Belastingdienst (the Dutch tax authority) states that the VAT rate for supply and installation of solar panels on or near a home is 0%. “On or near” includes a garage or shed next to a home, a holiday home, and an owners’ association buying panels for an apartment block. The 0% rate covers cables, mounting material, optimizers and inverters. Integrated panels on a new-build home are taxed at 21%.

United Kingdom: a deadline on the zero rate

HMRC VAT Notice 708/6 says it covers installations of energy-saving materials made between 1 May 2023 and 31 March 2027 under its zero-rate rules. HMRC is the UK tax authority. The notice also says that from 1 April 2027 these supplies revert to the reduced 5% rate. Check the premises, the installation and the supply conditions in the notice. The relief covers installed supplies. So a materials-only retail purchase needs its own check.

Take a UK project with GBP 10,000 before VAT. The invoice is GBP 10,000 at the zero rate and GBP 10,500 at 5% (10,000 × 1.05). The GBP 500 difference is 5% of the pre-tax price and 4.8% of the taxed invoice (500 ÷ 10,500). Recheck any project whose tax point (the date the sale counts for VAT) falls after the deadline.

Poland: a deduction base, not a grant

The Polish tax administration’s thermal-modernisation page lists installing a photovoltaic system among eligible works for owners or co-owners of single-family homes. Thermal modernisation means work that cuts a building’s energy use. The deduction limit is PLN 53,000 across all of a taxpayer’s thermal-modernisation projects. VAT can be included if the taxpayer did not recover it. The project must finish within 3 consecutive years of the end of the tax year of the first expense. If it does not, the relief is repaid. A refund of deducted spend is added back to income. Unused relief carries forward for up to 6 years from the end of the year of first expense. You claim the deduction against scale-taxed income (the 12% and 32% bands), 19% flat-tax income or flat-rate revenue.

The tax saving depends on the taxpayer’s rate. The PIT scale (PIT is personal income tax) is 12% up to PLN 120,000 of tax base and 32% above it. It comes with a PLN 3,600 tax-reducing amount. Business income can be taxed at a 19% flat rate if the taxpayer chose it. For example, PLN 30,000 of eligible spend deducted from income taxed at 12% lowers tax by up to PLN 3,600 (30,000 × 12%). At 32% it lowers tax by up to PLN 9,600 (30,000 × 32%). The maximum PLN 53,000 at 12% is PLN 6,360. These are upper bounds. They come before the PLN 3,600 tax-reducing amount and the taxpayer’s other deductions.

Slovakia: no PV-specific relief on the rate page

The Slovak Financial Administration’s VAT rate page says the standard rate has been 23% since 1 January 2025, with reduced rates of 19% and 5%. The 19% rate applies to the supply of electricity, certain foods and restaurant drinks. The page lists no photovoltaic-specific rate.

A proposal checklist that keeps the numbers traceable

Before including tax relief in a customer proposal, keep:

• The official rule, the version used, the country and any region with its own rules.
• Property use, ownership and taxpayer assumptions behind eligibility.
• Equipment, installation scope and capacity where the measure sets them.
• Invoice, payment, completion and filing dates, with the deadlines.
• The eligible cost base, exclusions, public support and compatibility.
• Whether the benefit changes the invoice, a later tax return or a separate payment.
• The evidence still outstanding and who confirms it.

Model later tax benefits in the year you can use them. Keep a scenario with the full, unreduced cost until entitlement is confirmed. Compare outcomes with net present value (today’s value of future cash flows). Use payback (the time to earn back the cost) with a stated cash-flow basis. For wider incentive context, see the European solar incentives guide and the EU solar subsidies tracker. Commercial buyers should read commercial solar tax incentives.

SurgePV’s proposal workflow can present the agreed cost, tax and energy assumptions. Rates and dates above come from the linked public authorities. The worked examples are our own arithmetic.

Frequently Asked Questions

Is there a solar tax credit in Europe?

No single one. Each country sets its own rules. Germany, the Netherlands and the UK use zero-rate VAT. France uses 5.5% VAT. Italy, Spain and Poland use income-tax deductions. Slovakia has no PV-specific relief on the Financial Administration’s rate page.

Which countries in Europe have 0% VAT on solar panels?

Germany and the Netherlands apply 0%. Germany’s rule is § 12 (3) UStG, for qualifying PV on or near homes and public-benefit buildings. The Dutch rule covers panels on or near a home. The UK applies 0% to qualifying installed energy-saving materials until 31 March 2027, then 5%.

Which European countries give an income-tax deduction for solar?

Italy gives 50% (principal residence, owners and real-right holders) or 36% (other cases). This is for 2025 and 2026 spend, on up to EUR 96,000 per unit. Spain gives 10% or 20% for installations finished and paid in 2026, on a base of up to EUR 5,000. Poland lets owners of single-family homes deduct up to PLN 53,000 of eligible spend.

What is the VAT rate on solar panels in Slovakia?

Slovakia has had a 23% standard rate since 1 January 2025. It also has reduced rates of 19% and 5%. The 19% rate covers the supply of electricity. The Financial Administration’s rate page lists no PV-specific rate.

Can I combine a VAT cut with an income-tax deduction?

They are separate measures, and each has its own conditions. Spain’s 2026 self-consumption deduction cannot be used for the same installation as its housing energy-efficiency deductions. One installation also cannot take both the 10% and the 20% rate.

Does the United States solar tax credit apply in Europe?

No. The US federal investment tax credit is a US measure. Our glossary entry on the investment tax credit explains it.