With exactly a month left until the September 15 deadline for filing your income tax return for the assessment year 2025-26 (financial year 2024-25), those sticking with the old tax regime still have one advantage over the default new regime, i.e., a wider menu of exemptions and deductions. These can make a real difference to your final tax outgo, but only if you remember to claim them and have the right paperwork in place.