How much does it cost to legalize a document at the Prefettura in Italy?
Legalizing a document at an Italian Prefettura is free in most cases: you only pay a EUR 16 stamp duty when the document was issued by a non-EU foreign embassy or consulate and must be valid in Italy.
Verifiable answer
Legalizing a document at an Italian Prefettura is free in most cases: you only pay a EUR 16 stamp duty when the document was issued by a non-EU foreign embassy or consulate and must be valid in Italy.
- How much does it cost to legalize a document at the Prefettura in Italy?
- €16 / application
- €0 – €16
- Italy
- 29 July 2026
- Confidence: High
- EUR 16 stamp duty, only for non-EU consular documents that must be valid in Italy; Signature verification and the Prefettura's legalization stamp; The legalization service itself, free whenever the stamp duty does not apply
- A sworn translation of the document, if the receiving body requires one; Postal costs for submitting the request, if you do not go in person; Any stamp duty already owed on the original document before legalization; Fees charged by agencies that offer to handle the procedure on your behalf
- Whether the document was drawn up in Italy or issued by a foreign diplomatic or consular representation; Whether that foreign representation belongs to an EU country or is covered by an international convention; Whether you apply in person or send the request by post; Whether a sworn translation is also required, which has a separate cost; How many documents need legalizing in the same visit
- 2 sources
Short answer
The Prefettura legalizes both Italian documents that must be valid abroad and foreign consular documents that must be valid in Italy — only the second direction, and not always, carries a EUR 16 stamp duty.
Legalization is the act by which a public office certifies that a signature on a document is genuine, so the document can be used outside the context in which it was issued. In Italy this service is provided by the Prefettura, and it runs in two opposite directions: it legalizes documents drawn up in Italy so they are valid abroad, and it legalizes documents issued by a foreign embassy or consulate based in Italy so they are valid here. Anyone searching for the cost of this procedure usually expects a flat fee, the way a passport or an ID card has one, but here the price depends on the direction and on where the document comes from. For Italian documents headed abroad, the Prefettura applies no extra charge for the legalization act itself. For foreign consular documents headed into Italy, a EUR 16 stamp duty kicks in instead, unless the document comes from a European Union country's representation or is covered by an international convention that exempts it. This guide keeps the two situations apart, because mixing them up leads to overestimating or underestimating the real cost of the procedure, and it also explains why you need to book an appointment before showing up at the counter.
What is included
- EUR 16 stamp duty, only for non-EU consular documents that must be valid in Italy
- Signature verification and the Prefettura's legalization stamp
- The legalization service itself, free whenever the stamp duty does not apply
What is not included
- A sworn translation of the document, if the receiving body requires one
- Postal costs for submitting the request, if you do not go in person
- Any stamp duty already owed on the original document before legalization
- Fees charged by agencies that offer to handle the procedure on your behalf
How the price breaks down
| Item | Type | Frequency | Typical |
|---|---|---|---|
| Stamp duty on consular documentsOwed only when the document to be legalized was issued by a foreign embassy or consulate in Italy and must be valid in Italy. It does not apply to EU-country representations or where an international convention exempts the document. | Optional | one-off | €16 |
| Legalizing Italian documents for use abroadWhen the direction is reversed — an Italian-issued document that must be valid abroad — the Prefecture does not apply any additional stamp duty for the legalization act itself. | Optional | one-off | €0 |
What the price depends on
- Whether the document was drawn up in Italy or issued by a foreign diplomatic or consular representation
- Whether that foreign representation belongs to an EU country or is covered by an international convention
- Whether you apply in person or send the request by post
- Whether a sworn translation is also required, which has a separate cost
- How many documents need legalizing in the same visit
Hidden costs
- A day of leave from work for the appointment, since online booking rarely lets you pick the time
- A second trip to the Prefettura if the document you bring is not in the required form and has to be resubmitted
- The cost of a sworn translation when the destination country requires one alongside the legalization
- Paying an agency for a procedure that, for Italian documents headed abroad, the Prefettura already performs free of charge
Three realistic scenarios
Economy scenario
€0
You need an Italian-issued certificate or public deed to be valid abroad: the Prefettura legalizes it without any additional stamp duty.
Typical scenario
€16
A non-EU embassy or consulate based in Italy issued you a document that must be valid here: you pay the EUR 16 stamp duty set for this case.
Premium scenario
€32
You need two non-EU consular documents legalized in the same visit, for instance for a file with several certificates: the stamp duty applies once per document, for a total of EUR 32.
How to spend less
- Before contacting an agency, check whether your case is one of the free ones: legalizing Italian documents for use abroad carries no extra duty.
- Check whether the consular document's country of origin is an EU member or covered by an exempting international convention: if so, the EUR 16 stamp is not owed.
- Book the online appointment well ahead, since some Prefetture only complete the procedure on the spot for applicants who arrive with a confirmed booking.
- Ask the receiving body in advance whether a sworn translation is also required, so you avoid a second round trip between the Prefettura and a translator.
- If you have a choice, apply in person rather than by post: you avoid the postal costs, which fall on you.
Frequently asked questions
Why does legalization sometimes cost EUR 16 and sometimes nothing?
Because the Prefettura offers two different services under one name. Legalizing a document drawn up in Italy so it is valid abroad carries no extra duty. Legalizing a document issued by a foreign embassy or consulate so it is valid in Italy carries a EUR 16 stamp duty instead, unless the representation belongs to an EU country or is covered by an exempting international convention.
Which documents are subject to the EUR 16 stamp duty?
The duty applies to acts and documents issued by a foreign diplomatic or consular representation based in Italy, when they need to be valid in this country. Documents from EU member states' representations and those covered by exempting international conventions are excluded.
Do I need to book an appointment for legalization at the Prefettura?
Yes. The Prefetture checked for this guide require booking through their online portal before you show up at the counter. Applicants who arrive with a confirmed appointment generally get the legalized document on the spot, during the same visit.
How long does document legalization take?
In most cases the procedure is completed on the spot, during the same appointment. The sources consulted state a maximum of thirty days for situations that need closer checks, for example when the signature's authenticity has to be verified with the foreign representation that issued the document.
Can I request legalization by post instead of in person?
Yes, some Prefetture accept requests by post, but the postal costs are yours to cover and are not included in any stamp duty owed. Applying in person remains the fastest way to get the legalized document during the same visit.
Does the Prefettura charge anything even when the stamp duty does not apply?
No. The sources consulted list no administrative fee or other charge for the legalization service itself: when the EUR 16 stamp is not owed — for Italian documents headed abroad, or for documents from EU representations — the procedure is free.
Sources and methodology
How we worked it out
The central figure — the EUR 16 stamp duty on non-EU consular documents only — was checked against two institutional pages from different Prefetture, Rome and Genoa, to confirm this is a national rule tied to Italy's stamp duty law rather than a practice set by a single office. Both sources report the same exemption for EU member states' diplomatic representations and for cases covered by international conventions, and neither lists any additional administrative fee for the legalization service itself. For the opposite direction — Italian documents legalized for use abroad — neither Prefettura lists any specific charge tied to the legalization act, which is why that direction's cost is treated as zero rather than as missing data. No postal costs were estimated, because none of the sources consulted state a figure for them.
Why this confidence level
High confidence on the EUR 16 stamp duty for non-EU consular documents: it is verified against two different Prefetture, both level-5 institutional sources, reporting the same amount and the same EU exemption. Confidence is slightly lower for Italian documents headed abroad, where the sources do not list a cost but also do not explicitly rule one out in every circumstance — which is why the lower end of the range is shown as zero rather than presented as an absolute certainty.
Confirms the EUR 16 stamp duty applies only to consular documents and that the legalization service itself is free
Legalizzazione documenti (opens in a new tab)
Ministero dell'Interno — Prefettura di Roma · Public authority · Verified on 29 July 2026
Official page of the Prefecture of Rome, checked on 29 July 2026: distinguishes legalizing Italian documents for use abroad from legalizing foreign consular documents for use in Italy, and states the stamp is owed only in the second case.
Authority5/5
A second prefecture checked to confirm the amount and exemptions are national rather than a local practice
Legalizzazione documenti (opens in a new tab)
Ministero dell'Interno — Prefettura di Genova · Public authority · Verified on 29 July 2026
Reports the same EUR 16 stamp duty on consular documents, the same exemption for EU representations or international conventions, and states that any postal costs for submitting the request by mail are borne by the applicant.
Authority5/5
Revision history
First published on 29 July 2026, with the EUR 16 stamp duty on non-EU consular documents verified against two independent Prefetture, Rome and Genoa.
- 29 July 2026
- 29 July 2026
- 29 October 2026
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