Field help: (2020) Income from agriculture and forestry in 2018 This text refers to the Steuererklärung 2020 online. You can find the version for the Steuererklärung 2025 at: (2025): Income from agriculture and forestry in 2018 Entries are to be made only if there was a compulsory membership in the year 2020 under the law on pension provision for farmers.The income from agriculture and forestry as shown in the income tax assessment notice for the previous year is decisive.