How many clients or businesses can I add?
There is no limit to how many businesses that are not paying their invoices you can add.
However, you can not list the same business more than once. For example, don’t list the same client as a ‘freelancer’ not paying invoices, and then also under their trading name (if they have one).
You can, however, add businesses as separate listings if they use more than one trading name – which would appear on your invoices.