Readers' forum: Invoice uneasiness

My client trades through a limited company. Some of the company costs are paid from the business bank account but the client often makes purchases using his own credit card.

The company is VAT registered and I have started to worry about the claims for input tax. I have included the VAT on these purchases in the quarterly returns because I am satisfied that they do relate to corporate costs but is this correct? I don’t have an invoice in the company name and am concerned that this input tax might be disallowed should HMRC investigate.

Am I worrying unnecessarily? Are there any steps I could take to mitigate matters – for example should there be a minute or note recording that the director will make purchases as say agent for the company? Some suppliers may be willing to provide an invoice in the company...