What category would i put rental charges for a credit card terminal

Hello, hegs1-hotmail-co. 

I'll give some ideas on how to categorise your rental charges in Self-Employed. 

You can categorise the rental charges under rent or business expense. Although, it depends on how you would handle those charges. 

For a guide about the SA103F categories, you can check this article: About SA103F Categories.

I would also recommend consulting with an accountant. They can guide you in handling the rental charges and ensure it appears on the correct box on the SA103F form. 

Need help managing your tax returns? This article can give more ideas about the process: How to use QuickBooks Self-Employed reports to fill in your tax return.

Happy to help you out again if you have more questions about managing your transactions. You can also add any other concerns for your Self-Employed account.