Equity-Linked Savings Scheme (ELSS) is one of the most popular instruments covered under Section 80C of the Income Tax Act, 1961. You can avail tax deductions of a maximum of Rs 1,50,000 a year. ELSS is the only mutual funds that offer tax deductions. As the name suggests, ELSS mutual funds majorly invest in equity instruments. Also, investing in ELSS offers the twin benefit of tax deductions and wealth accumulation. ELSS mutual funds offer the highest returns and have the shortest lock-in period among all Section 80C instruments. Such funds usually have a lock-in period of 3 years.