Bonus water discount and Supplementary water bonus discount

Bonus water discount

This bonus is established and regulated by ARERA (Regulatory Authority for Energy, Networks and the Environment) by Decision 227/2018/R/idr.

Who is entitled?

Direct or indirect users of the aqueduct, sewage system and water treatment service suffering from financial hardship have the right to this bonus, i.e. who are members of the family nucleus:

  • with ISEE (equivalent financial situation index) which does not exceed EUR 8,265;
  • with ISEE (equivalent financial situation index) which does not exceed EUR 20.000 with at least 4 dependent children;
  • Basic Income or Basic Pension.

Where do I send my application?

Send your application for the water bonus with self-certification to your home Municipality or to another body appointed by the Municipality (CAF).

What documents are required to apply?

To apply, send the following documents with your completed application form together with your personal data and water supply identification numbers:

  • identity document
  • any authorisation of signature
  • currently valid ISEE certificate
  • certificate containing the personal data of all the members of the ISEE family nucleus (name-surname and tax code)
  • certification for recognition as a large family (at least 4 dependent children), if your ISEE exceeds EUR 8,265 (but is less than EUR 20,000)

Users with a Basic Income or Basic Pension will also need to provide:

  • The reference number assigned to their Income/Pension or a valid certificate that proves they are entitled to Basic Income/Pension.

To download the documentation you need to apply and for any further information, go to
the water bonus discount page on Authority's website.

Due to the COVID-19 emergency, with Deliberation 140/2020/R/COM, ARERA has extended the validity of the dispositions previously adopted, with Deliberation 7676/2020/R/COM, in favor of customers who benefit from social bonuses and who may find it difficult to meet the deadlines to submit their renewal application. Specifically:

  • Beneficiaries of the bonus expiring between March 1 and May 31, may submit their renewal application by July 31, 2020. Once the application has been accepted, after running the usual checks, the continuity of the bonus will be guaranteed retroactively, starting from the original expiry date, for 12 months.
  • From March 1 to May 31, 2020, the communication flow aimed at providing eligible citizens with information on the compensation system and the need to renew their bonus application via the online system, has been suspended.

Supplementary water bonus discount

This water supply bonus is offered by ATO2 Lazio Centrale Roma to residential domestic users in economic difficulty, pursuant to art. 8 of AEEGSI Deliberation 897/2017/R/IDR.
The bonus is regulated by the Governing Body of the area - Technical-Operational Office - Lazio Centrale Roma, which sets the entitlement rules.

Who is entitled to the water bonus?

The bonus is intended for direct customers with a residential domestic supply contract in their own name and indirect users who use a water supply registered in the name of a Condominium, who meet the following requirements:

  • ISEE indicator up to €13,939.11 and family of up to 3 members
  • ISEE indicator up to € 15,989.46 and family of 4 members
  • ISEE indicator up to € 18,120.63 and family of 5 or more members

Additionally, Municipal Administrations have the power, based on special certificates issued by the competent offices, to offer the Supplementary Water Bonus to individual customers who find themselves in a situation of proven economic and/or social difficulty, by extending the ISEE entitlement criteria on an ad hoc basis.

Where can entitled users apply?

Applications for the bonus must be submitted, preferably via e-mail, to or, alternatively, by regular mail to: “STO ATO 2 Lazio Centrale Roma Via Cesare Pascarella, 31 – 00153 Roma”.

What documents are required to apply?

The documents required are:

  • form completed with the customer’s personal details and water supply reference numbers;
  • copy of the applicant’s ID;
  • 2020 ISEE certificate;
  • first page of a 2020 or 2019 bill. indirect customers should provide a bill addressed to the Condominium.

For all the details, please download the applicable regulation and forms or refer to the website of the Governing Body of the area

Please be reminded that, as required by the applicable regulation, applications must be sent by December 31, 2020.

How is the bonus issued?

The 2020 Supplementary Water Bonus is valid for one year and is issued as a single amount in the bill. Normally, it is issued within 6 months from submitting the application. In the case of indirect users, the provider will send a communication to the user and the Condominium representative to inform them that the bonus has been issued. 

Applications submitted on forms other than those specified in the applicable regulation will not be accepted. Customers who have already submitted their applications using old forms must resubmit them using the new forms.

Customers from Municipalities acquired in 2020, who therefore do not have Acea ATO 2 bills, may attach the 2020 bills received from their previous water Provider.