Sreeram Viswanath
Expert
Published on: Aug 6, 2025
Interest on Securities
In income-tax parlance, security is a document possessed by the creditor as a guarantee for the payment indebted to him. Interest on securities refers to any of the following types of income:- Interest on any security which has been issued by the Central Government or State Government.
- Interest on debentures or other securities for money issued by on or behalf of a local authority or a company/co-operation established by a Central, State or Provincial Act.
Basis of Charge
If the assessee maintains books of account on a cash basis, interest by way of interest on securities is taxable on receipt basis. If the books are being maintained on the mercantile system, it is taxable on due basis. It is again taxable on receipt basis if such interest had not been charged to tax on the due basis for any earlier previous year.Due Date of Interest
Interest on securities does not accrue on a daily basis or according to the period on which investment is held. It becomes due on the due dates specified on securities.Interest Exempt from Tax
Interest on notified securities, as well as notified bonds and certificates, are fully exempt from tax. Also, interest on Post Office savings bank account is exempt up to an amount of Rs 3,500 with respect to an individual, and Rs 7,000 in the case of a joint account.Grossing up of Interest
Grossing up mechanism specifies that the payer must ensure complete payment of the amount due to the recipient, which precisely means that the payer must cover the tax deduction costs of the payee. Gross interest, which is derived after adding net interest with tax deducted at source, is taxable. Net interest is grossed up in the hands of the recipient if the payer deducts tax at source. Net interest is grossed up by using the following formula:100/ (100 – Rate of tax deduction at source)

