Tax code verification: check if it's correct

With the tax code verification you check format and control character and see precisely which part is wrong. The tax code verification is free and the data stays in your browser.

What the tool checks

The tax code verification checks that the 16 characters respect the format (letters and numbers in the correct positions), that month and day are plausible and that the last character matches the one calculated with the official algorithm. The erroneous segment is highlighted in red.

Official validity

A formally correct code may still not be the one assigned to a person. For validity, consult the official service of the Revenue Agency.

Other tools

To read a code use the inverse tax code; for the variants see homocodes.

Privacy: the calculation takes place in your browser and no data is sent or saved. Unofficial tool: for validity use the official service of the Revenue Agency.