Personal Finance Income tax returns deadline today: Here's a quick checklist to file ITR Updated : August 31, 2018 09:58 AM IST As per the new tax law, there’s a penalty of Rs 5,000 if the returns are filed after the deadline but before December 31. After December 31st, the penalty is Rs 10,000. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.