I am using the API to input invoice data into Quickfile. There seems to be a discrepancy between the two systems; the VAT total is out by 1p in some cases. I believe this is down to the way VAT is rounded?
My external system says the VAT in this case should be 1.24. I make it right:
2.53 x 1.2 (VAT 0.506 ) = 3.036
3.68 x 1.2 (VAT 0.736 ) = 4.416
Sum total of the VAT on each line: 1.242
I always thought VAT should be rounded down to the nearest 0.5p on the total ?
Am I wrong?
Thanks for your help