The form is filled out correctly. The changes that raised questions are related to innovations in VAT reporting that took effect in 2026, not to an error in the form itself.
What you need to know
When working with the updated form 300.00, accountants often notice that the structure or individual lines differ from the forms they are used to from previous periods. This is normal — the form has been updated to reflect new requirements, and upon reviewing the client's specific declaration, no discrepancies with the accounting data were found.
If you have similar doubts about your form 300.00:
- Check the declaration figures against the accounting and tax records for the reporting period.
- Note that some lines or sections of the form may have changed compared to previous periods — this is due to the form update, not an error in the program.
- If figures don't match, first check the accuracy of how transactions are reflected in the records, rather than the form itself.
Frequently asked questions
Why does form 300.00 look different from last quarter?
The form has been updated to reflect the innovations in effect since 2026, so visual and structural differences are an expected occurrence, not a sign of an error.
Do I need to adjust anything in 1C before filling out the form?
In the case reviewed, no additional settings were required — after verification, the form was generated correctly in accordance with the new requirements.
How can I make sure my form 300.00 is filled out correctly?
Compare the total VAT amounts in the declaration with the turnover on the VAT accounting accounts and the purchase/sales data for the quarter. If the amounts match and the discrepancies only concern the appearance or arrangement of the lines, this is related to the form update.