Rental income, savings income and pensioner issues
The links from this page to the Low Incomes Tax Reform Group (LITRG) website will tell you more about renting out property, how savings income is taxed and tax issues for pensioners.
Taxation of savings:
http://www.litrg.org.uk/tax-guides/tax-basics/what-tax-rates-apply-me
Pensioners:
http://www.litrg.org.uk/tax-guides/pensioners-and-tax
Rental income:
http://www.litrg.org.uk/tax-guides/other-tax-issues/property-income/renting-out-property