On 6 July 2020, Federal Public Service (SPF) Finance has issued a notice declaring that Biztax is available for the 2020 tax year. The notice indicates that the Minister of Finance granted an extension of the due date for filing the corporate tax return to 29 October 2020 from 24 September 2020 in response to Covid-19 pandemic.

The extended due date also applies to the tax returns of legal entities and non-resident corporations. Tax returns to be filed between 24 September and 29 October 2020 can also benefit from the extension. Taxpayers that intend to apply the loss carryback need to file their tax return before 1 October 2020 for a faster refund.