Bookinglayer calculates the VAT excluding it from the gross sum.

Here you can see a VAT formula explanation and an example from the website vatcalconline:

  • Excluding VAT from gross sum:
    The VAT calculation formula for VAT exclusion is the following:

    To calculate VAT having the gross amount you should divide the gross amount by 1 + VAT percentage (i.e. if it is 15%, then you should divide by 1.15), then subtract the gross amount, multiply by -1 and round to the closest value (including Euro cents). The last two operations are not mandatory since you see the VAT value even before you do them.


  • €90 is the gross nightly rate of a room and the VAT rate is set to 10%.

  • In the booking's invoice, you will see the VAT breakdown.

  • According to the VAT exclusion formula, the correct VAT amount for a total of €90 is €8.18.

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