The sum of your income from all sources, earned and unearned, less any reliefs and deductions which you are entitled to claim, but before deducting personal allowances (these are deducted later).
All income received during a year including taxable income and tax-exempt income. It does not include tax-deferred income.
refers to annual income from all sources. " Other income" refers to income garnered from any other source, such as private investments or pensions.