If you wish to claim tax relief in writing: To do so, go to the website of the Directorate General of Customs and call up either the complete "Application for tax relief for agricultural and forestry businesses" (Form 1140) or the "Simplified application for tax relief for agricultural and forestry businesses" (Form 1142). Form 1140 can be used by all claimants. You can only use form 1142 if you have made a full claim (Form 1140) or a short claim (Form 1142) in the past year which has not been refused, There have been no changes in the type of business, number of persons, or number of colonies since your last complete application (Form 1140), and your company is not in difficulty within the meaning of European state aid law at the time of application and use of the energy products. Complete the application (Form 1140 or 1142) in full. If you are applying for the first time: Attach all required documents. If you are submitting a subsequent application, you only need to submit the documents if the Main Customs Office asks you to do so. Send the application by post to the relevant main customs office. The main customs office will check your tax application and send you a tax relief notice if the assessment differs. If you wish to apply for tax relief electronically: From 4 January 2021, it will be possible to submit an application completely electronically via the Citizen and Business Customer (BuG) portal, without the need to additionally send the printed compressed application as before. For legitimation, please use your ELSTER certificate from the state tax authorities or your new ID card with the additional function "electronic proof of identity (eID)". A one-time registration is required to apply for agricultural diesel relief via the BuG portal. To register, please go to our website and follow the link "Create a new account here". Then select the "Business customer account" and have your Elster certificate ready for the rest of the registration process. Simplified registration: With the provision of the "Agricultural diesel relief" service, you will receive a link by e-mail on 4 January 2021, which you can use for simplified registration in the BuG portal. A prerequisite for the simplified registration is that your e-mail address is available to the main customs office responsible for you. IMPORTANT: You can only use one agricultural diesel number per e-mail address to register in the BuG portal. Within the BuG portal, you will be asked a series of questions to decide whether the short application or full application is offered. The BuG portal opens up the possibility for you, as the applicant, to track the status of your submitted applications. In the BuG portal, it will be possible to contact the customs administration online in a convenient manner - for example, to submit required documents subsequently - and to receive discharge notices digitally in the event of a different assessment.