If you're filing under the old tax regime, there's a specific deduction worth knowing about: investments and certain expenses up to ₹1.5 lakh a year, under section 80C, can reduce your taxable income — meaning real tax savings for money you might already be setting aside anyway.
Here's what typically counts toward that ₹1.5 lakh. PPF contributions, EPF (often already happening automatically through your salary), ELSS mutual funds, life insurance premiums, and the principal portion of a home loan EMI can all be claimed, in combination, up to the ₹1.5 lakh ceiling. If you're already contributing to several of these without tracking the total, you might be sitting on unused room — or, just as commonly, you might have already filled the ₹1.5 lakh and not realised any further 80C-eligible spending wouldn't add further benefit.
Why checking this matters: many salaried individuals have EPF and a home loan principal already covering a meaningful chunk of the ₹1.5 lakh limit without any extra effort. Knowing exactly how much of the limit is already used tells you whether it's worth adding a PPF contribution or an ELSS investment before the financial year closes, or whether you've already maxed it out and further 80C investment wouldn't bring any additional tax benefit.
The practical habit: once a year, before tax season, add up what you've already contributed toward 80C-eligible items, and compare it to the ₹1.5 lakh ceiling. The gap, if any, is room worth considering filling — but only if the old regime is actually the better choice for your numbers (see "old vs new tax regime").