Source of Funds Requests: What They Mean and How to Respond

"Source of funds" simply means where the money in your account comes from.

Providers ask for this to comply with financial regulations and prevent money laundering.

They may request:

Business bank statements
Personal statements for new businesses
Explanation of large deposits

This usually happens for new businesses or when volumes change. Different providers have varying requirements — understanding how Stripe, Square, and PayPal assess risk can help you prepare.

Having clean separation between personal and business finances helps a lot here. Choosing the right payment processor in the UK from the start can reduce these friction points.

If you want to avoid these issues before choosing a payment provider, you can start a short assessment.