What does outsourced finance and bookkeeping cost?

Our pricing is published — you can build your package on the pricing page and see an indicative monthly fee and any one-off costs in about two minutes, without giving us your email address. The figure comes from your numbers: transaction volumes, how many people you pay, how tidy the records are, and which services you want. Prices shown are plus VAT. The figure on the pricing page is indicative, based on the information you give us: we verify the scope on your Discovery Call and confirm your fee in a written proposal before any work begins.

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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.

Last updated 2 October 2026

What drives the price

Volume first: how many transactions run through the business each month, and across how many bank accounts and payment platforms.

Then scope: bookkeeping alone is one thing; bookkeeping with payroll, VAT, management accounts and a monthly conversation is another.

Then condition: records that are current cost less to run than records that need bringing back from months behind, which is usually a one-off piece of work rather than an ongoing cost.

Then people: employees and directors on payroll, and whether pensions and auto-enrolment duties sit with us.

Where to find your figure

The pricing page asks the same questions we would ask on a call — invoices raised, bank accounts to reconcile, people on payroll, the services you want — and prices them with the same engine our own team uses. There is no separate website price list, which is why the figure you see is one we recognise.

You will see an indicative monthly fee and any one-off costs, including the one-off New Client Onboarding Fee, before you give us anything. No email address, no call, no waiting for a proposal to land. All prices are plus VAT.

What we commit to: we verify the scope on your Discovery Call and confirm the fee in a written proposal before work begins. The monthly fee is fixed for the scope we agree — a busier month inside that scope does not change it, and a material change in scope is an agreed fee review, not a surprise invoice.

Worth comparing against

Compare it against the true cost of in-house — salary plus employer's National Insurance, pension, holiday, software, and the cover you don't have when that person is away.

And compare it against the cost of not knowing: a pricing decision made blind, or a cash squeeze spotted a month too late, is usually the more expensive line.

Related questions

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