New Delhi, Sept. 1 -- September has several important income tax compliance deadlines for taxpayers, businesses, and other entities.

The month also brings a series of 30 September deadlines, mainly related to tax audits and audit reports. Taxpayers covered by these requirements should ensure that the relevant audit reports and forms are filed on time, especially where the income tax return is due on 31 October 2026.

Here are the key tax deadlines to watch out for in September 2026.

Tax deducted or collected during August 2026 needs to be deposited with the government by 7 September.

The final day of September has several compliance requirements, largely meant for businesses, companies, trusts, specified funds, and other taxpayers subj...