What the sheet actually proves
A foreign bank does not know who may bind your company. It wants a public record naming the directors and the powers they hold, dated recently enough to be worth reading. In Italy that record comes out of the business register kept by the Chamber of Commerce. Anyone asking how to legalize a Certificate of Incumbency is asking about that sheet.
The class of paper sets the route
Italy sorts papers by who signed them, not by what they say. A register extract is an administrative record, so it goes to the Prefettura, the state's local office in the province. Deeds and statements made in front of a notary are notarial acts and go to the Procura della Repubblica at the tribunal. This sheet reads like law but travels as an ordinary public record.
That surprises people, and the surprise costs them a morning. Nothing about company law pulls the file towards the courts, because no judge or notary put a name on it. The signature on the page belongs to the register itself. So the Prefettura is the door, and the Procura is not.
The Turin counters, in order
To legalize a Certificate of Incumbency in Turin you carry the fresh extract and a tax stamp to the Prefettura. A clerk there matches the register's signature to a sample the office holds and stamps beside it. Only after that mark is on the page can a consulate in Italy add its own. Nothing in the chain can be done out of order.
The embassy legalization of a Certificate of Incumbency in Turin then depends on which country you are dealing with. Consulates set their own days, their own paperwork and their own tariff. Some want the company's founding deed in the same bundle. Ask what they expect to receive before you turn up with one sheet.
Cost and days
The consular legalization of a Certificate of Incumbency in Italy is cheap on the home leg and unpredictable on the far one. Cost splits in two: a €16 marca da bollo here, and a consular fee set abroad. The register charges its own small amount for the extract. Ask the consulate for its current tariff rather than trusting last year's figure.
Ten to fifteen business days is the usual span, counted from the day the extract is pulled. Where a closing or an account opening has a date on it, an express run of 3–5 business days can be used. Since the sheet ages fast, this is a chain you want to run in one go. Pull the extract only when the rest is ready.
Before you order anything
Two questions decide whether this goes smoothly. The first is whether the consular step is needed at all, which rests on the destination and can only be answered by the receiving authority. The second is the language the reader works in. Ask both in the same email and keep the reply with the file.
The embassy attestation of a Certificate of Incumbency in Turin is often ordered in a rush, which is where mistakes creep in. Check the officers' names against their passports before the chain starts, because a spelling that differs will stop a bank cold. Confirm the required language with the receiving office in writing, then order the translation once. Fixing a name after the stamps are on means starting again.