Practical guides on electricity excise, AD-1 declarations and ADM compliance.
How Italy implements D.Lgs. 43/2025: plant declarations, monthly down-payments, semi-annual AD-1, conguaglio, 15% bond, sellers' reports. Deadlines and operator-by-operator rules.
Hub of declarant-category deep-dives for the Italian AD-1 declaration under arts. 52-54 TUA: self-producer, professional user, photovoltaic, total grid injection, net metering, cogeneration and CER - with dedicated deep-dives and quadri mapping.
High-efficiency cogeneration (CAR) is governed by D.Lgs. 20/2007 and DM 4/8/2011 + 5/9/2011 (directive 2012/27/EU). The art. 52 c.3 lett. b excise exemption applies only to electricity used to produce more electricity, not to heat or general services (Italian Supreme Court order 21/02/2025). AD-1 quadri, natural-gas relief and common errors.
Italian net metering (scambio sul posto - SSP) has been closed to new entries since 26 September 2025 (ARERA 78/2025 and 213/2025). Operators with active contracts remain self-producers for excise: AD-1 quadri, art. 52 c.3 lett. b exemption, and the transition to Ritiro Dedicato or to a Renewable Energy Community.
The total-grid-injection producer (cessione totale - Art. 53-bis c.1 TUA) injects 100% of its electricity into the grid and is not liable for excise, but must file a plant notice by 31 March 2026 (DM 10 March 2026 art. 22 c.5) and a semi-annual AD-1 flow declaration. Procedure, quadri and grey areas.
The professional user (utente professionale - buyer of electricity for own use, Art. 53 c.2 lett. c TUA) is a liable person without a production plant. Which AD-1 quadri to file, how the 15% bond is calculated, and the 2026 semi-annual deadlines.
Who qualifies as a self-producer (autoproduttore) under the Italian electricity excise regime, why the Art. 52 c.3 lett. b exemption is not the same as being out of scope, which AD-1 quadri to file, and the 2026 semi-annual deadlines for renewable and non-renewable self-consumption plants.
How to submit the AD-1 electricity excise declaration to the Italian Agenzia delle Dogane e dei Monopoli in 2026: U2S and S2S channels, Sottoscrittore profile, XAdES-BES signing, first- and second-level receipts, ravvedimento operoso.
What to look for in software for the Italian AD-1 electricity excise declaration after the D.Lgs. 43/2025 reform: XSD validation, S2S submission, multi-power-plant view, Sottoscrittore profile, ten-year retention.
When does Italian electricity excise apply to photovoltaic output? 20 kW threshold, self-consumption, mixed use (art. 52 TUA), AD-1 quadri and 2026 semi-annual deadlines under D.Lgs. 43/2025.
South Tyrol falls under Italy's electricity excise regime — AD-1 is filed with national ADM in Rome. Exemption thresholds, German-language support and 2026 deadlines for photovoltaic operators in Bolzano province.
From 2026 the AD-1 declaration is semi-annual: H1 (January-June) by 30 September, H2 (July-December) by 31 March. Guide to new deadlines, monthly down-payments and transitional rules under D.Lgs. 43/2025.
All AD-1 deadlines for 2026: H1 (January-June) by 30 September, H2 (July-December) by 31 March 2027, monthly down-payments by the 16th of each following month. Complete calendar with D.Lgs. 43/2025 and DM 10 March 2026 references.
Italy's excise reform introduces semi-annual AD-1 declarations. New deadlines (September 2026 and March 2027), monthly payments on actual consumption, 15% bond requirement, and the SOAC status - a practical guide with checklist.
What the AD-1 consumption declaration is, who must file it, which quadri to complete and how electricity excise tax is calculated under the Italian TUA.
The 8 declarants under Arts. 52-54 TUA: exempt photovoltaic, excise-liable production, BESS, RIU and other configurations. Which ADM licence is required and which AD-1 quadri apply to each.
Italian Renewable Energy Communities (CER) are liable persons under Art. 53 TUA. Guide to AD-1 declaration obligations for CERs: who signs, which quadri to complete, semi-annual deadlines 2026.
From 1 April 2026, the surety bond for Italian power plants is calculated as 15% of estimated annual excise. How to comply, who is affected and the transitional rules under DM 10 March 2026.