| Subject | English | Italian |
| law, fin. | Code of income tax | codice delle imposte sul reddito |
| comp., MS | sales tax code | codice IVA (A user-defined code that uniquely identifies a specific sales tax and defines its characteristics, such as the percentage or amount, tax authority, terms of payment, and ledger accounts used for posting) |
| tax. | tax code | codice tributario |
| tax. | tax identification code | codice fiscale |