Como funciona o Código Fiscal
Descubra o algoritmo de cálculo do Código Fiscal italiano
Estrutura do Código Fiscal
RSS
MRA
85
C
15
H501
S
RSS3 letras do sobrenome
MRA3 letras do nome
852 dígitos do ano de nascimento
C1 letra do mês
152 dígitos do dia (+40 para mulheres)
H5014 caracteres do código cadastral
S1 caractere de controle (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.