Which ITR forms can taxpayers still file before the August 31 deadline?

The August 31 deadline covers taxpayers with business or professional income who aren't subject to tax audit. The deadline applies to taxpayers filing ITR-3, ITR-4, ITR-5 and ITR-7 who have business or professional income, according to CNBC-TV18. Taxpayers should select their ITR form based on the nature and amount of income, sources of income and their taxpayer category.