Working with CASS

What it costs and what moves the price, how switching works, onboarding and the first 90 days, and who does the work.

These answers provide general information, not advice tailored to your circumstances. Rules can change and exceptions may apply — speak to the CASS team before making a tax, accounting or financial decision.

Yes. We can assess whether the Flat Rate Scheme is available and whether it is likely to be beneficial for your business.

Last updated 29 September 2026

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