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Amounts Include Tax Check box .png)
Once an account has been selected in Quotes, Order or Bill, tick or un-tick Tax Inclusive will not affect the input data in the form field, only the Subtotal, Total Tax and Total will be adjusted accordingly.
a.If this check-box is ticked
Formula: Subtotal = Ship quantity * Price / (1+ Tax Rate)
Sample Data: if Quantity is 1, price is 10 Tax is GST (10%)
Subtotal = 1 * 10 / (1+10%) = 9.09
Tax = Quantity * price – subtotal = 0.91
b.If the Check-box is un-ticked
Subtotal = quantity * price
Sample data: if Quantity 1, price is 10, Tax is GST (10%)
Subtotal = price * quantity = 1 * 10 = 10
Tax = subtotal * Tax rate = 10 * 10% = 1
Total = subtotal + tax = 10 + 1 = 11
c.If a user inputs a quote with tax inclusive ticked, then un-tick the tax inclusive check-box after data inputting.
Item 1, quantity 1, unit price 10, Tax is GST (10%)
Subtotal = 1 * 10 (1 + 10%) = 9.09
Tax = quantity * price – subtotal = 0.91
Now, user un-ticks tax inclusive check-box.
Unit price is still 10
Total = 10 * (1 + tax rate) = 10 * (1+10%) = 11.
d.If a user inputs a quote with tax inclusive ticked, then tick the tax inclusive check-box after data inputting.
Item 1 quantity 1, unit price is 10, Tax GST 10%
Subtotal = quantity * price
Sample data: if Quantity 1, price is 10, Tax is GST (10%)
Then, user ticks tax inclusive check-box,
Unit price 10 will not change, but the Subtotal = 1 * 10 (1+10%) = 9.09
Tax = quantity * price – subtotal = 0.91
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