Not letting the filing period slip past
- Author
- CRYPTO PORT Editorial
- Published
- Updated
- Reading time
- 5 min
In short
A return is filed during a set period in the following year. The exact dates vary from year to year, so take them from the National Tax Agency's guidance. Because crypto history takes time to collect and calculate, starting once the period opens can be too late — begin preparing while the year is still running.
Key points
- Exact dates differ year to year — take them from the National Tax Agency
- Crypto preparation is slow; starting when the period opens is often too late
- Export history periodically while the year is still current
- The consequences of being late are set by the rules — do not simply leave it
Definition
Knowing when the filing period falls and working backwards from the volume of work required.
Returns are filed during a set period in the year following the one being reported. The exact dates move from year to year, including for reasons as mundane as which day of the week they fall on, so this site states none — take them from that year's National Tax Agency guidance. Note also that payment and certain other procedures can carry their own separate dates.
What causes trouble with crypto is not the length of the period but the volume of work before it. Collecting history from several exchanges and wallets, normalising formats, calculating and checking can run from days to weeks depending on activity. If you then discover history you cannot retrieve, you add the time it takes to contact an exchange and wait for a reply. Starting after the period opens and only then discovering a missing file leaves you stuck.
So the real preparation starts during the year itself: exporting CSVs quarterly, keeping the list of exchanges and wallets current, writing a note when you do something significant. Those habits alone transform how much work the following spring holds. Trying to reconstruct a whole year from memory in January is the slowest possible approach.
Once the new year starts, get the calculation moving first — you cannot even judge whether you need to file without a result. When the calculation is done and checked, move on to entering and submitting, which is not a long job once the figures exist. Since e-Tax gets busy towards the end of the period, finishing early is simply more comfortable.
If you do miss the deadline, the consequences are set by the rules. Being late does not mean there is nothing to file, and leaving it tends to make the position worse. See tax-late-filing, and speak to the tax office or a tax accountant early.
Watch out for
- · This page is a general orientation, not tax advice
- · This site states no specific dates — take them from National Tax Agency guidance
- · If you are late, do not leave it: contact the tax office or a tax accountant
Frequently asked questions
What if the calculation will not be finished in time?
Speak to a tax accountant early. Depending on the volume, some of the work can be handed over, and what options exist in relation to the deadline depends on your circumstances. The one outcome to avoid is letting the date pass with nothing done.