A married man (born 3 November 1934) died on 8 July 2020. He received a retirement pension of £14,930 between 6 April 2020 and the date of his death. His wife (born 12 August 1940) had no income whilst her husband was alive but received a pension of £19,885 between 8 July 2020 and 5 April 2021. They were married in 1970 and made no elections in relation to the married couple's allowance. 

Calculate their income tax liabilities for 2020-21.