Case study · Accountancy & FinTech

From four hours to five seconds: AI document extraction for a UK cloud accounting platform

A UK cloud accounting platform needed to turn the financial documents its customers send into usable data far faster. We deployed Caelum AI, the extraction engine we developed. It now processes around 100,000 documents a month at 99.5% accuracy, and average turnaround has dropped from four hours to about five seconds.

documents processed each month
~100,000
average turnaround
4 hours → ~5 seconds
accuracy
99.5%
AWS support cost removed
£6,000 a year

The challenge

The platform's customers send in financial documents every day. Before anything could be booked, each one had to be read and turned into structured data, and on average that took four hours.

Documents also arrived by more than one route, including email and WhatsApp, so the platform needed one dependable way to take all of them in.

Behind the scenes, an ageing database was still running on AWS extended support, at a cost of £500 a month.

What we built

We worked with the platform's team to add document intelligence and to clear the technical debt that was in the way.

  • AI extraction with Caelum. We deployed Caelum, the financial document-extraction engine we developed, to read incoming documents and return structured data. Caelum is also available on the AWS and Azure marketplaces.
  • Ingestion by email and WhatsApp. Customers send documents the way they already do, and they are picked up automatically.
  • Analytics and data-health modules. Clear views of the state of each customer's books, built on the extracted data.
  • Legacy database migration. We moved the platform off its ageing database, ending the AWS extended-support charge.

The result

Around 100,000 documents a month now go through Caelum at 99.5% accuracy, and average turnaround has fallen from four hours to about five seconds.

Retiring the legacy database removed a £500 monthly AWS extended-support fee: £6,000 a year.

Technology

  • Caelum AI
  • AWS
  • WhatsApp and email ingestion

Processing documents by hand? Let's look at your volumes.

A 30-minute discovery call: your documents, systems and volumes, and what could be automated. No obligation.

Download our capability statement (PDF)

Facts verified October 2026. All case studies