Can someone please tell me how I add a credit line to an invoice? So I have one line with for example £100 and then the second line with a credit off -£12.34

Hi dawnie81 As you're using the self employed product you will add the work item for £100 and then select add work again, in the description enter credit, or something similar, then enter the -£12.34 in the amount field, once added this will reduce the amount on the invoice to £87.46.