Tessera

Factual R&D tax claim documentation — delivered in days

We extract the relevant insights from your project data, identify your qualifying R&D activity, and produce the documentation to support your claim — in days, not months, with a fraction of the time commitment from your team.

Your project data Qualifying R&D identified & filtered R&D claim documentation
What sets us apart
Days
Not months

Claim documentation produced quickly — without lengthy interview cycles or pulling your team away from their work.

Factual
Data-driven by design

Built from your actual project data — not recalled conversations. Consistent, evidence-backed, and defensible.

Minimal
Required from your team

We absorb the documentation work. Your engineers and project leads stay focused on what they do best.

Honest
Transparent pricing

We price to be comparable to — and often below — most commercial alternatives. We will always tell you plainly if that is not the case.

Your team's time is better spent on the work itself

We have absorbed the hard part. Here is what you no longer need to manage.

How it works
Step 01
You provide your project data
A straightforward export from your existing project tools. No integrations, no IT involvement, no lengthy setup. We tell you exactly what we need.
Project data export
Task IDSummaryStatusAssignee
PRJ-142API auth refactorDoneJ. Chen
PRJ-143ML pipeline v2DoneS. Patel
PRJ-144Edge caching layerDoneR. Kim
PRJ-145Dashboard updateDoneL. Roy
PRJ-146Data sync moduleDoneA. Ngo
Qualifying projects
API auth refactor
ML pipeline v2
Edge caching layer
Dashboard update
Data sync module
Step 02
We identify your R&D and produce the documentation
We extract the relevant insights from your data — identifying qualifying activity, mapping time, and building the narratives that explain your R&D to HMRC. Delivered in days.
Step 03
You review, refine & submit
Review the output with your team and refine as needed. Our accounting firm partner can manage costs and submission end-to-end, or we work alongside your existing accountant.
R&D Claim Documentation
Final project list & qualification basis
API auth refactor
ML pipeline v2
Edge caching layer
R&D project narratives
Time allocations
What you receive

Project summaries

Each qualifying project documented with its technical objectives, challenges faced, and the work undertaken — structured for claim submission.

Time allocations

Built from time mapped to qualifying activity — derived from your data, not estimates.

Supporting narratives

Clear explanations of the technical advance sought, the uncertainties encountered, and how the work went beyond routine practice in the relevant field.

Evidence package

Supporting data and documentation compiled into a structured package — ready for review, submission, or retention in the event of an HMRC enquiry.

End-to-end capability

Tessera works in partnership with a top 30 UK accounting firm to review claim proposals, process qualifying costs, and manage submission. A complete service — from project data to submitted claim — designed to deliver a better quality outcome at a price that is comparable to, and in many cases below, most commercial alternatives. We will always be transparent if that is not the case.

Built by practitioners
10+
Years in R&D tax
HMRC
Enquiry experience
UK
SME, RDEC, merged scheme & ERIS

See it built from your own data

Request a demo and we will walk you through a live claim build — no commitment, no jargon.

Request a pilot