INPC Update and Surcharges Calculation Sheet

This Excel sheet facilitates the automatic calculation of surcharges and updates on amounts owed, using the INPC (National Consumer Price Index) indices. Simply enter the amount before surcharges in the indicated cell and select the corresponding INPC months and years through drop-down lists. Surcharges will be automatically calculated according to the information provided.

Furthermore, unlike the calculations performed by the SAT on provisional payments, which take into account the total tax due and not just the difference, our tool helps taxpayers avoid suggesting higher amounts, providing an accurate calculation that complies with tax regulations.

Characteristics:

• Automatic calculation of surcharges and updates.
• INPC selection using drop-down lists.
• Cells clearly differentiated between editable and non-editable.
• Possibility of manually adding missing INPC indexes.

It is ideal for taxpayers who wish to avoid errors in tax calculations and ensure proper handling of surcharges and updates.