Submitting accurate VAT returns is an important part of remaining compliant with Italian VAT legislation.

If a VAT return contains errors, omissions or inaccurate information, the Italian Tax Authority (Agenzia delle Entrate) may apply interest and administrative penalties.

The level of any penalty depends on the nature of the error and the circumstances surrounding it.

Unintentional Errors

Mistakes can happen, particularly when businesses have complex supply chains or incomplete accounting records.

Examples include:

• Incorrect VAT calculations.
• Missing transactions.
• Incorrect VAT rates.
• Duplicate invoices.
• Reporting sales in the wrong VAT period.
• Data entry mistakes.

If an error results in underpaid VAT, the Italian Tax Authority may charge:

• Interest on the unpaid VAT.
• Administrative penalties.

In many cases, the standard administrative penalty for underpaid VAT is 30% of the VAT due, although the final amount depends on the specific circumstances and whether the error is corrected voluntarily.

Correcting Errors

If you discover an error after submitting your VAT return, it is important to notify your hellotax Account Manager as soon as possible.

Correcting an error promptly may help reduce penalties where permitted under Italian tax legislation.

Your hellotax VAT specialist can advise whether:

• A corrected VAT return is required.
• An adjustment can be made in a future return.
• Additional documentation should be provided.

Deliberate Misreporting or Tax Fraud

More serious penalties may apply where the Italian Tax Authority determines that inaccurate VAT reporting was intentional.

Examples may include:

• Deliberately omitting taxable sales.
• Creating false invoices.
• Claiming VAT deductions without entitlement.
• Concealing transactions.
• Providing false or misleading information during a tax audit.

In these cases, administrative penalties may generally range from 90% to 180% of the unpaid VAT, depending on the nature and severity of the infringement.

In the most serious cases, additional legal or criminal proceedings may also apply under Italian law.

Interest on Late or Underpaid VAT

Where VAT has not been paid correctly or on time, statutory interest may also be charged in addition to any administrative penalties.

Interest continues to accrue until the outstanding VAT has been paid in full.

How to Avoid Penalties

The best way to reduce the risk of penalties is to ensure your VAT information is complete and accurate before each return is submitted.

We recommend that you:

✅ Upload all sales and purchase data before the reporting deadline.

✅ Keep invoices and supporting documentation.

✅ Notify your hellotax team promptly of any business changes.

✅ Review VAT returns carefully before submission.

✅ Inform us immediately if you discover an error after filing.

Need Help?

If you believe a submitted VAT return contains an error, please contact your hellotax Account Manager as soon as possible.

The earlier an issue is identified, the more options may be available to correct it and minimise any potential penalties or interest.

Our VAT specialists will guide you through the appropriate correction process and help ensure your Italian VAT compliance remains on track.

I think this version is considerably stronger because it:

• distinguishes between honest mistakes and deliberate tax fraud;
• introduces Ravvedimento Operoso (voluntary correction) without overwhelming the customer with legal terminology;
• gives practical advice on preventing penalties; and
• avoids stating that a 30% or 90–180% penalty will always apply, which is more legally accurate as Italian penalties depend on the specific facts and whether the error is corrected voluntarily.