What is UVT?
The UVT (Unidad de Valor Tributario) is a measure that the DIAN updates annually and that is used to express thresholds, penalties and the withholding tables without depending on peso figures that change with inflation.
The withholding table for salaries is expressed in UVT, so the calculation converts the refined salary into UVT before applying the percentages.
In practice
For withholding, the refined salary base is divided by the value of the UVT for the year and placed in the Art. 383 table to find the applicable percentage.