IGI = taxable amount × rate
Calculate IGI using the selected rate, then add it to the taxable amount to obtain the total. Round monetary results to cents.
01 · Free toolFiscal authority: Govern d'Andorra — Departament de Tributs i de Fronteres
IGI Calculator
Enter an amount, choose the rate and view the breakdown. The calculator works in either direction: from the taxable amount or from the final total.
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How it works
It applies the selected rate to the amount entered and rounds to the nearest cent. If the amount already includes IGI, it calculates the taxable amount by dividing by the corresponding factor instead of subtracting the percentage—the most common calculation error.
When it helps
- To check an amount before sending an invoice, especially when the customer gave you a tax-inclusive price and you need to extract the taxable amount.
- To review a supplier invoice that does not quite reconcile. If the IGI amount does not match the taxable amount and rate, the cause is often rounding the total instead of each line.
- To prepare a quick quote over the phone without opening your accounting software or risking a figure that does not add up later.
When it's not enough
- If you issue more than a couple of invoices a month, calculating them separately stops making sense: the amount must be calculated where it is recorded, or you will end up with two versions of the truth.
- The calculator does not update any register. You still have to add the quarter’s invoices by hand, which is precisely what the full product avoids.
What it does not do
It does not decide which rate applies to your transaction. That is determined by law and depends on what you sell and to whom. It also does not account for exemptions, pro rata deduction rules or reverse charge. For a specific case, check the official source or ask your accounting firm.
02 · Calculation guideTax source: Govern d'Andorra — Departament de Tributs i de Fronteres
Andorran IGI: calculate and check it
The three figures must describe the same transaction: taxable amount, IGI amount and total. These formulas let you repeat the calculation and find an input or rounding error.
Taxable amount = total ÷ (1 + rate)
Do not subtract the percentage from the total. Divide by the rate factor, then subtract the resulting taxable amount from the total to obtain IGI.
Taxable amount + IGI = total
For an invoice containing several rates, check each line or rate group separately before adding the document total.
Direct answers about IGI
What is IGI in Andorra?
IGI is Andorra’s general indirect tax. If you searched for “Andorra VAT,” IGI is the Andorran tax you need to check. This tool performs only the arithmetic calculation.
How is IGI calculated from the taxable amount?
Multiply the taxable amount by the applicable rate to obtain IGI. Then add IGI to the taxable amount to obtain the total.
How do I extract IGI from a tax-inclusive price?
Divide the total by one plus the rate expressed as a decimal. The difference between the total and the resulting taxable amount is IGI.
Which IGI rate should I apply?
The calculator cannot decide this. It depends on the transaction, the goods or services, the parties and any special rules. Confirm the treatment in the current official source or with your accounting firm.
The calculator performs arithmetic; it does not interpret your case. Always confirm the applicable rate, exemption and treatment before issuing or recording an invoice.
What if you never had to do it by hand again?
In AndCompta, every invoice line carries its own rate and the quarterly IGI register is updated automatically.