For which year does the app create the tax declaration? Gizem Kilin May 15, 2023 15:18 Updated Taxfix supports you with your tax declarations for the previous 4 years. Related articles How much does it cost to use Taxfix? Do I get confirmation after filing my tax return with Taxfix? Why don’t I get a refund? The prefilled tax return: Can I change the retrieved data? As an heir, can I do the tax return with Taxfix?