Turn Engineering Prototypes & Technical Risk Into Cash
Claim maximum R&D tax relief on physical prototyping, tooling iterations, and shop-floor engineering challenges.
Are you experiencing? ↴
Unrecognised Project Scope
Assuming everyday client problem-solving, custom fabrications, or failed physical prototypes don't qualify for HMRC R&D relief.
Missed Consumables & Materials
Overlooking the cost of raw materials, power, software, and specialised tooling destroyed or used during testing phases.
HMRC Inquiry Anxiety
Fearing that claiming relief on complex technical engineering will trigger time-consuming HMRC audits.
The Seeder Heights Approach ↴
Shop-Floor R&D Audits
Our technical experts evaluate your physical processes, tooling, and materials to isolate every qualifying expense.
100% Audit-Ready Compliance
Fully documented, defensible technical narratives structured and tailored to HMRC.
Subcontractor Optimisation
Accurately separating internal vs. external engineering spend to maximise your eligible claim under current HMRC rules.
What qualifies for Engineering R&D?
If your technical team has faced any of these challenges, you likely have an eligible R&D claim.
Bespoke Tooling & Jig Design
Designing custom machinery, specialised moulds, or automated production line jigs to manufacture components with ultra-tight tolerances.
Material Substitution & Stress Testing
Testing high-performance composites, recycled alloys, or new structural coatings to improve product durability, weight, or environmental resilience.
Overcoming Manufacturing Bottlenecks
Re-engineering physical assembly processes or cycle times when standard off-the-shelf machinery fails to deliver the required output.
Scale-Up & Prototyping Risk
Taking a working laboratory concept or initial 3D model and translating it into a full-scale, functional physical prototype.
How We File Your Claim Without Stopping Production
Discussion & Screening
We review your current physical projects over a quick call—no paperwork required from your end.
Technical Narrative Construction
Eligible? After a call with our technical specialists, we map out the engineering uncertainties, write the full HMRC technical report, and extract cost data.
Audit-Ready Submission
We file your claim directly alongside HMRC's Additional Information Form (AIF) to ensure smooth approval.
Why SeederHeights?
Sector-Specific Experts
Our team understands complex technical risks, tooling, and manufacturing processes.
100% HMRC Inquiry Defense
Every claim is built to withstand strict HMRC scrutiny, supported by detailed technical narratives prepared under current UK tax guidelines.
Zero Disruption to Your Team
We handle the heavy lifting, cost extraction, and report writing so your engineers stay focused on production and client deliverables.

Frequently Asked Questions
Yes. If fulfilling a client contract required overcoming genuine technological uncertainty, creating custom tooling, or testing new fabrications, those technical efforts qualify under current contracted-out R&D rules.
Failed projects are fully eligible. HMRC rewards the attempt to resolve technical uncertainty—unsuccessful trials often demonstrate clear technological risk.
From our initial discovery call to submitting your final claim alongside HMRC’s Additional Information Form (AIF), the average turnaround is just 14 days.
Ready to Turn Your Engineering Risks Into Capital?
Book a free eligibility review with our R&D specialists. No paperwork, no commitment, just clear advice on what you can claim.