Answer five questions about the work and your customer. They are the checks HMRC gives suppliers, and any one of them can rule the reverse charge out, so the answer says which one decided it.
If the reverse charge applies, show the VAT rate and the VAT figure and say the customer accounts for the VAT to HMRC. Don’t add that VAT to what they pay you. If it doesn’t, the invoice charges VAT as normal, or 0% on zero-rated work such as building a new home.
Read the worked reverse charge invoice example, including CIS and end-user cases.
Sendinvo shows reverse-charge wording and the VAT the contractor accounts for without adding it to what they pay you.