New Delhi, Aug. 20 -- With the 31 August deadline for filing income tax returns for non-audit taxpayers approaching, individuals earning income from a business or profession need to ensure they are using the correct ITR form and have the necessary tax records in place.

Here are the key forms taxpayers should know before filing their returns.

ITR-3 is applicable to individuals and Hindu Undivided Families (HUFs) earning income from business or profession who do not qualify to file ITR-1, ITR-2 or ITR-4. It can cover income from salary or pension, house property, capital gains, and other sources in addition to business or professional income.

ITR-4 is a simplified return available to eligible resident individuals, HUFs, and firms other t...