When do you have to file your 2026 income tax return? Check your exact date using your ID number

The August 12, 2026 income tax filing season for individuals (taxable year 2025) begins, and like every year, the DIAN distributes the deadlines into 50 turns based on the last two digits of your ID or NIT. The difference between the first turn and the last is more than two months — and getting your date wrong is expensive.

That is why we launched a free tool that answers the three questions of the season in one place: when is my turn, am I required to file, and who will remind me?

Your exact date in seconds

Enter the last two digits of your ID (or paste the full number — it is only read in your browser, nothing is sent or saved) and the tool shows you your exact date from the official 2026 DIAN calendar, the group you belong to, and how many days you have left.

→ Check your 2026 income tax filing date

Key dates of the 2026 calendar

The season runs from August 12 (IDs ending in 01 and 02) to October 26, 2026 (ending in 99 and 00). Between those extremes are 50 business days — the calendar skips weekends and holidays like August 17 and October 12, so don't try to deduce your turn by "counting by twos": check it.

Are you required to file? The 2025 thresholds

You must file if during 2025 you met at least one of these conditions (2025 UVT = $49,799):

• Gross assets of $224,095,500 or more (4,500 UVT) as of December 31.
• Gross income of $69,718,600 or more (1,400 UVT) for the year.
• Credit card consumption of $69,718,600 or more.
• Total purchases and consumption of $69,718,600 or more.
• Bank deposits, investments, or consignments of $69,718,600 or more.
• Being VAT responsible at the end of the year.

Note: filing does not always mean paying. Many salaried employees file the declaration and do not pay an additional peso because the year's withholdings already covered the tax — sometimes there is even a balance in your favor. The tool includes a checker where you mark what you exceeded and it tells you if you are required to file.

The penalty for missing it

Filing late costs 5% of the tax due for each month (or fraction) of delay, with a minimum penalty of $523,740 (10 UVT of 2026) which applies even if your tax is low. Added to that are late payment interest charges. It is one of the easiest fines to avoid in the system: you just have to know the date.

Activate the free reminder

Within the same tool, you can leave your email and we will write to you one week before and one day before your exact date — nothing else, no spam, and you can cancel with one tap from any email. It is a double confirmation: nothing is activated until you click the link that arrives.

→ Check my date and activate the reminder

To learn more

If you want the complete step-by-step guide — form 210, RUT, electronic signature, deductions, and how to calculate what you pay — we have the complete 2026 income tax filing guide for individuals. And if you are a salaried employee and want to understand how much is withheld each month, use the net salary calculator.

Figures verified against the 2026 DIAN Tax Calendar and DIAN Resolution 000238 of 2025 (UVT). This is general information, not tax advice — for cases with mixed income or assets abroad, an accountant pays for themselves.