Synopsis Deduction under section 80C of the Income-tax Act, 1961 can reduce up to Rs 1.5 lakh from the gross total income in a financial year. Here is how this section works and can help you save tax in a financial year. Getty Images Eligible investment instruments include Employees' Provident Fund (EPF), Public Provident Fund (PPF) etc. One of the most common deductions available under the Income-tax Act, 1961 is section 80C. The deduction under this section can be claimed only if an individual opts for the old/existing tax regime in a financial year. On the other hand, if an individual opts for the new concessional tax regime, then the individual will not be able to claim deduction under this section.