If the system shows an error about an incorrect VAT registration date when sending an ESF, it means that the reference book or the VAT payer certificate in 1C actually contains an incorrect date — even if the accountant is sure that everything is specified correctly.
How to fix it:
You should not rely solely on statements that the date is supposedly correct — you need to personally open the VAT payer certificate card and check the actually entered registration date. In the described case, the client insisted that the date was correct, but when the certificate was opened, a discrepancy was found. After the correct registration date was entered into the certificate, the ESF was sent without errors.
The main conclusion: with such errors, always check the data yourself, without trusting the claim that "everything is specified correctly." Often the cause is precisely a mismatch between the date in the certificate and the date actually registered with the state revenue authorities.
Frequently Asked Questions
Where can I see the VAT registration date in 1C? It is specified in the VAT payer certificate card, which is linked to the organization or counterparty in the system.
Why does the system show this error if the date visually matches the document? The discrepancy may not be noticeable at first glance — it is important to check exactly the date that is physically entered in the certificate field, not what the accountant remembers.
What should be done after correcting the date? Simply resend the ESF — with the correct registration date, it should go through without errors.