To avoid these negative effects and to increase the liquidity of companies, the deadline for investment deductions, whose three-year investment period expires in 2020, is extended by one year to four years (§ 52 para. 16 EStG, inserted by the "Second Corona Tax Assistance Act" of 29.6.2020). This gives taxpayers who want to invest in 2020 but cannot due to the Corona crisis the opportunity to make the investment in 2021 without negative tax consequences (reversal, interest on the tax demand).
Currently, the investment periods according to § 7g EStG are being extended again: For investment deductions whose three-year or four-year extended investment period expires in 2021, the investment period is extended by one year to four or five years. This means: If the deduction was made in 2017 or 2018, the investment period now ends on 31.12.2022 (§ 52 para. 16 sentence 4 EStG, amended by the "Act to Modernise Corporate Tax Law").
The investment periods according to § 7g EStG are being extended again: If the three-year or already extended investment periods expire in 2022, they will be extended by another year to four, five or six years (§ 52 para. 16 sentences 3, 4 EStG, amended by the "Fourth Corona Tax Assistance Act" of 19.6.2022).