Is it possible to not show cis deductions on invoices because one contractor I work for has the habit of deducting cis off my already deducted figure?

I can help share some insights, @customfits.

The item you entered on your invoice must be shown when sending it. Hiding the CIS deduction isn't possible. 

This can only be done if you don't deduct the CIS when sending the invoice and once paid you can edit the invoice manually by adding the CIS deduction.

For other information about CIS, you can check this article: CIS in QuickBooks.

If you have other questions about CIS, feel free to update this thread. I’m always here to help.