Dueradar: frequently asked questions

Monthly filers: GSTR-1 by the 11th and GSTR-3B by the 20th of the next month. QRMP filers (turnover up to ₹5 crore): IFF by the 13th and PMT-06 by the 25th for the first two months of a quarter, then GSTR-1 by the 13th and GSTR-3B by the 22nd or 24th (depending on your state) after the quarter. GSTR-9 is due by 31 December. The calendar shows only the ones that apply to you.

The 22nd for Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Dadra & Nagar Haveli and Daman & Diu, Puducherry, Andaman & Nicobar and Lakshadweep; the 24th for all other states and union territories. It applies only to QRMP (quarterly) filers.

The Income-tax Act, 2025 replaced the 1961 Act from 1 April 2026. 'Tax year' replaces previous year and assessment year, TDS returns and certificates have new numbers (Form 138 for salary TDS, Form 140 for other TDS, Form 143 for TCS, Form 130 instead of Form 16), the due date for non-audit business returns (ITR-3/ITR-4) is 31 August, and revised returns can be filed up to 31 March. Returns for FY 2025-26 and earlier still follow the old Act.

Click 'Add all dates to my phone calendar'. You download one .ics file; open it and your calendar app (Google Calendar, iPhone, Outlook) adds each due date as an all-day event with alerts 3 days and 1 day before. Nothing is stored on our side.

₹50 a day (₹25 CGST + ₹25 SGST), or ₹20 a day for a nil return, up to a cap: ₹500 for nil returns, ₹2,000 if turnover is up to ₹1.5 crore, ₹5,000 for ₹1.5-5 crore and ₹10,000 above ₹5 crore. Interest at 18% a year is charged on the tax paid late in cash. Use the calculator for your numbers.

GSTR-9 is optional if your aggregate turnover for the year is up to ₹2 crore and mandatory above that. GSTR-9C (self-certified reconciliation) is needed above ₹5 crore. Composition taxpayers file GSTR-4 instead, by 30 April.

No. It keeps you on time and answers 'what and when' questions. Your CA still prepares and files returns, reconciles books and handles notices. Many CAs use the CA mode to plan their month and remind clients.

The calendar, phone reminders and late fee calculator are free. One assistant answer a day is free; a 30-day pass is ₹199 and a 1-year pass is cheaper per month. No auto-renewal.

The 24th of the month after the quarter. Uttar Pradesh is in the 24th group with Delhi, Rajasthan, Punjab, Haryana, Bihar, West Bengal and the other northern and eastern states.

No. IFF is optional. Use it if your B2B buyers want the input tax credit in the same month; otherwise invoices can go in the quarterly GSTR-1.

Registered taxpayers with aggregate turnover up to ₹5 crore in the previous year who file GSTR-1 and GSTR-3B. Composition taxpayers are outside QRMP.

No. Late fee and interest must be paid in cash through the electronic cash ledger.

On the net tax paid in cash, provided the ITC used was available in the electronic credit ledger by the due date.

Waivers (amnesty schemes) are announced by notification from time to time. Check the GST portal's news section; don't wait for one before filing.

Under the Income-tax Act, 2025 this is tax year 2026-27. Returns are due on 31 July 2027 for ITR-1/ITR-2, 31 August 2027 for non-audit business returns, 31 October 2027 for audit cases and 30 November 2027 for transfer pricing cases. The government can extend these dates.

The same certificate is now Form 130 under the new Act, for salaries paid from April 2026. Employers issue it by 15 June after the tax year.