Hi Gordon.
We too struggled with this until Mark came up with this solution.
Enter a separate purchase from the invoice received from the courier company. These normally contain an amount for VAT and ‘handling charge’
I’ll give an example where £20 VAT has been charged
On the purchase enter 5 x the VAT charged with VAT Code for UK supplier (SS) = £100 + £20 VAT
on the next line enter - (minus) 5 x the VAT charge with a 0% code (NT) = -£100
Enter the handling fee on a separate line, these are normally zero rated.
Enter any Duty charged again with a 0% code.
Note, this works as long as VAT is @20%, if it changes then a new calculation will need to be done.
We have a recurring purchase setup for doing these and we just alter the figures to suit the invoice received.
Hope this helps,
Barry