Comment fonctionne le Code Fiscal
Découvrez l'algorithme de calcul du Code Fiscal italien
Structure du Code Fiscal
RSS
MRA
85
C
15
H501
S
RSS3 lettres du nom de famille
MRA3 lettres du prénom
852 chiffres de l'année de naissance
C1 lettre du mois
152 chiffres du jour (+40 pour femmes)
H5014 caractères du code cadastral
S1 caractère de contrôle (CIN)
Month Codes
JanuaryA
FebruaryB
MarchC
AprilD
MayE
JuneH
JulyL
AugustM
SeptemberP
OctoberR
NovemberS
DecemberT
Day Rule
👨 Males
Birth day from 01 to 31
15 → 15
👩 Females
Birth day + 40 (from 41 to 71)
15 → 55
What is Omocodia?
Omocodia occurs when two people have the same calculated Tax Code. The Revenue Agency resolves this by replacing some digits with letters.
Substitution table:
0→L1→M2→N3→P4→Q5→R6→S7→T8→U9→V
Control Character (CIN)
The last character is calculated with an algorithm that verifies the correctness of all previous characters. It is a letter from A to Z calculated using odd and even value tables.