Filing deadlines can be extended – but remember to ask for an extension before your deadline

Any charity that needs to file annual returns during the coronavirus outbreak can contact the Charity Commission for an extension to time limits

https://www.gov.uk/government/news/filing-charity-annual-returns-during-the-coronavirus-pandemic

If Coronavirus (COVID-19) has affected your company and you need more time to file your accounts, you should act before your filing deadline.

https://www.gov.uk/government/news/coronavirus-if-your-company-cannot-file-accounts-with-companies-house-on-time