Missing these 4 deadlines in December will result in hefty fines. Note the dates today.

4 Deadlines In December: December brings a multitude of tax-related tasks, and failing to complete them on time can increase your hassles and penalties later on. Make a note of these 4 deadlines in advance.

4 Deadlines In December: The month of December has begun. As the last month of the year, this month holds a significant number of important tasks that must be completed. This month it's the busiest month for taxpayers. ITR, TDS, advance tax, and many other important filings are due. Missing even one deadline can lead to penalties, interest, and delayed refunds.

Therefore, it would be a mistake to take the December deadlines lightly. This December also brings four important deadlines, missing which could be costly. Let's take you through the four top deadlines this month, which could cause you trouble.

December 10th is the most important day for those with audited accounts.

If your business is subject to audit or you are a partner in an audited firm, December 10th is an important date for you. Previously, the deadline was October 31st, but it has been extended to December 10th to provide some time to file your ITR after the audit. This includes spouses covered under Section 5A.

This is the last opportunity for the assessment year 2025-26. Missing it could result in penalties, interest, and subsequent notices. If the audit report is ready, it's best to file your ITR by that day. Delays can result in penalties and delays in filing further filings.

Forms, TDS, and Advance Tax by December 15th

Many tax tasks fall together on December 15th. Therefore, it's considered the busiest day in the tax calendar. Form 27C for the month of November must be uploaded on this day. Government departments are required to report TDS or TCS without invoices for November through Form 24G. The third installment of advance tax is also required to be deposited on this day, applicable to individuals, professionals, and businesses.

TDS certificates for October deducted under sections 194IA, 194IB, 194M, and 194S are also required to be issued on this day. Stock exchanges are also required to upload Form 3BB, related to client code changes. Missing this date can cause a series of disruptions. Therefore, it's important to mark it in advance on your calendar.

TDS and Client Code Statements by December 30th

December 30th is no easy day. Recognized associations are required to submit their client code modification statements for November on this day. Delays in this process often compromise compliance records. The challan-cum-statement for November's TDS is required to be submitted on this date so that the entire month is updated in the system. Skipping this date could lead to problems later, such as payment errors, non-reflection of credit, or delayed certificate issuance.

December 1st: The Last, but Most Important Cutoff

The last day of the year is crucial in another respect. This is the deadline for submitting a belated or updated ITR for the assessment year 2025-26. You can file this return only if the Income Tax Department has not already completed your assessment. Missing this date leaves you with no recourse but to appeal, and you could face penalties, interest, and long refund delays. Before the end of the year, check whether your filing status is complete.