Wastewater levy; submission of a declaration to determine or apply for offsetting for large-scale discharges and precipitation water

The discharge of treated wastewater and precipitation water is subject to a levy. If the charge is not determined via the limit values specified in the water law notice, the party liable to pay the charge can declare this to the responsible authority.



The declarations for the assessment of the wastewater levy must be submitted by the operator of a wastewater treatment plant (large-scale discharger) (e.g. companies or municipalities).

An application for offsetting requires that the party liable to pay the levy has to pay or has already paid a levy in the offsetting period and has incurred expenses.


The declarations and applications in accordance with the Administrative Regulation on the Wastewater Charges Act and the Bavarian Act on the Implementation of the Wastewater Charges Act (VwVBayAbwAG) can be submitted by the operator of the wastewater treatment plant using the forms provided or via the DABay internet application (see "Online procedure").

The district administrative authority sends the forms or requests the operator of the wastewater treatment plant to submit a declaration via DABay.

The competent district administrative authority then determines the wastewater levy according to the data submitted and issues a decision. This is sent to the applicant in writing.

If necessary, the district administrative authority consults the responsible water management authority (or the DABay Internet application) and asks it to monitor compliance with the declared values and to report any findings.


In the case of a declaration of compliance with lower values compared to the assessment notice, the declaration must be submitted by November 30 before the start of the assessment period (= next calendar year).

In the case of a declaration period of less than one year or in the current year, the declaration must be submitted to the competent district administrative authority at least 2 weeks before the declaration period.

Required documents

  • The information in the declaration must be substantiated, if necessary.

    For the purpose of verification, the district administrative authority may require the submission of expert opinions and confirmations by an auditor.


  • Form, Bavaria-wide: Anträge und Erklärungen nach VwVBayAbwAG
    Please note

    This form has to be signed and sent to the responsible authority. You can sign the form manually and send it by email/fax or sign the form electronically with your qualified electronic signature an send it by (secure) email. If the responsible authority has set up a De-Mail account, you can also send the form by De-Mail using an sender-confirmed message.

Online procedures

  • Datenverbund Abwasser Bayern (DABay)

    Via the Datenverbund Abwasser Bayern (DABay), those liable to pay the levy can transmit all installations in accordance with VwVBayAbwAG for the large discharger and stormwater levy to the district administration authority online. Registration is required to use the digital process.


  • none


An appeal may be lodged against the wastewater levy notice within one month of notification. The appeal has no suspensive effect.


Responsible for editing:Bayerisches Staatsministerium für Umwelt und Verbraucherschutz

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  • Online transactions, Bavaria-wide
  • Online transactions, locally limited
  • Form, Bavaria-wide
  • Form, locally limited
  • Prefillable Form, Bavaria-wide
  • Legal bases, Bavaria-wide
  • Legal bases, locally limited
  • Fees, Bavaria-wide
  • Fees, locally limited
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