RMS will calculate Full GST on any transaction excluding Sundry Charges setup as GST Free using the divisor entered in Setup > Accounting > Accounting Options > GST.
In this example, GST is 10% making the charge dividable by 11.
When posting to the account, the total charge will be divided by 11 and the resulting value will be the GST portion for that charge.
Formula: (100 / 11) = 9.09
RMS will calculate Concessional GST on any transaction excluding Sundry Charges setup as GST Free using the Concessional GST reduction percentage, criteria and Discount GST values entered in Setup > Accounting Options > GST.
Continuing with the example where Full GST is 10% and Concessional GST is 5.5%.
For the purpose of RMS calculations, Full GST is reduced by 5.21327% after 27 nights making the Concessional GST 4.0901%.
RMS will only calculate Concessional GST for each accommodation portion above 27 nights or where 'Reduced GST from Day 1' has been selected on the reservation.
When posting to the account, the total charge will be divided by 11 and the GST Amount reduced by 5.21327 % with the resulting value being the 5.5% Concessional GST portion for that charge.
Formula: (100 / 11) =9.09 - 4.0901 = 5 + (100 - 9.09) = 90.9 + 5 = 95.9099 or $95.91