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Claim review

A second opinion before you file.

We read a drafted R&D claim as HMRC would, test the projects and the costs, and tell you whether it is ready. Every review is signed off by a Chartered Tax Adviser. We reply the same working day.

Why review a claim

A claim is easier to fix before it is filed.

HMRC's figures for 2023-24 show 17% of claims checked and 77% of checks leading to an adjustment. A claim that has never been read critically by anyone other than its author carries avoidable risk.

A review is useful when:

  • a volume claim firm, or a new adviser, has drafted the claim and you want a view from someone independent;
  • the claim has grown quickly and nobody has re-read the projects;
  • the cost figures were built by a busy finance team;
  • your accountant has asked for a second opinion;
  • a previous adviser began the claim and stopped.

We also defend R&D enquiries on claims prepared by others, so we know what a challenge to a weak claim looks like.

What we check

Six checks.

  1. The R&D definition

    Each project against the Government's guidelines: advance, uncertainty, competent professional and project boundaries.

  2. The evidence

    Whether the technical story can be proved from records, not just asserted.

  3. The costs

    Staff, agency workers, subcontractors, consumables, software and cloud, each traced to a record.

  4. The restrictions

    Grants, connected parties, the PAYE cap and overseas work.

  5. The scheme

    Whether the merged scheme or ERIS was the right choice and whether the numbers work.

  6. Consistency

    Whether the technical report, the cost schedule, the additional information form and the claim tell the same story.

Real example

Seven projects in, five projects out.

An inherited claim had seven possible projects and no narratives. We reviewed them, excluded two and built a defensible claim on the other five.

Next steps

What happens after the review.

The claim is ready, or you fix the points we raised, or you ask us to rebuild it. All three are fine. See R&D claim preparation if you want us to do the work, and our packages for the layers of support. If the claim has already gone in and HMRC has written, go to HMRC enquiry defence.

FAQs

Frequently asked questions

What is a pre-filing R&D claim review?

It is an independent read of a claim that has been drafted but not yet filed. We test the projects against the Government's definition of R&D, check the cost figures against the records, look at how the claim is evidenced and flag anything HMRC is likely to question. You get a straight view of whether the claim is ready, and what to change if it is not.

How early should we ask for a review?

As soon as there is something to read, and certainly before the additional information form and the Company Tax Return go in. A review done after filing can still help, but changes are simpler and cheaper before anything reaches HMRC. If a deadline is close, tell us when you ask so that we can plan the work around it.

Can you review a claim prepared by another firm?

Yes, whoever prepared it. We read it as we would read our own, against the same standard. If the claim is sound, we say so. If it is not, we say that too, explain what is wrong and set out what it would take to fix it. We do not criticise a firm for the sake of it, and we do not hide a problem to be polite.

What exactly do you check in a review?

The project boundaries, the scientific or technological uncertainty and the advance claimed; whether the competent professionals are properly identified; the staff, subcontractor, consumable, software and cloud costs against payroll and invoices; grants, connected parties and overseas work; the choice of scheme; and whether the technical report and the additional information form agree with each other.

What happens if you find problems?

We tell you plainly what the problems are, how serious each one is and what it would take to fix. Some can be put right by clearer evidence. Some mean a project, or part of a cost, should come out of the claim. You decide what to do. We do not change the claim, or contact anyone about it, without your instruction.

Do you review claims that have already been submitted?

Yes. A review of a filed claim can show whether it is likely to stand up if HMRC asks questions, and whether it needs correcting. If it does, our page on correcting past claims sets out the options. Telling HMRC about an error unprompted generally leads to lower penalties than waiting to be found.

Will a review delay our filing?

We agree a timetable before starting and tell you honestly how long the review needs, which depends on the size of the claim and the quality of the papers. If a deadline is tight, we say what can be reviewed properly in the time available. A short, focused review is better than a rushed one, and filing late is not an option you want.

Do you rewrite our technical narrative?

Not unless you ask. A review comments on what you have: where the uncertainty is not clear, where a description reads like a template, where evidence is missing. If you then want us to redraft some or all of the narrative, that is a separate piece of work we can quote for, or we can move the whole claim onto our preparation service.

What if our current adviser disagrees with your view?

It happens, and it is better to find out before filing. We set out our reasoning against the Government's guidelines and HMRC's published approach, so the point can be discussed on its merits. We are happy to speak to your adviser. In the end the company decides what to file, on the basis of the best-reasoned view.

Do you check the cost calculation as well as the science?

Yes. A claim can be sound technically and wrong on the numbers, and the reverse. We check that each cost is a qualifying category, that time has been apportioned fairly, that unconnected agency and subcontractor costs are taken at 65%, that costs were paid, and that grants and overseas work are treated correctly.

Will you tell us if the claim is too low?

Yes. A review is not only about removing risk. We also look for qualifying costs or projects that were left out, such as staff time not captured or cloud costs not included. If the claim is conservative for good reasons, we say so. If it is too low because something was missed, we show you what and why.

What do we get at the end of a review?

A written summary of what we reviewed, what we found and what we recommend, in plain English, with each point ranked by importance. A Chartered Tax Adviser signs off our view. We also talk it through with you, so you can ask about anything that is unclear before deciding what to do.

Does a review make an HMRC check less likely?

We cannot say that. HMRC chooses which claims to check, and its figures show that 17% of claims were checked in 2023-24. What a review does is make it more likely that, if a claim is checked, it holds up. It finds weak points while you can still fix them, which is where the value lies.

Is our review confidential from our current adviser?

Yes. We act for you, not for them. We do not tell your current adviser that you have asked for a second opinion, and we do not share our findings with them, unless you ask us to. If you want us to work alongside them, we will, and we will agree with you who sees what.

What do we need to send you for a review?

The draft technical report or project descriptions, the cost schedule, the accounting period, whether you have claimed before, and any grant or contractor details. Payroll summaries and a handful of sample invoices help. If you have a draft additional information form, send that too. Send what you have: we tell you what else is needed.

How is a review different from you preparing the claim?

A review checks someone else's work and reports on it. Preparation means we build the claim ourselves: interviews, cost mapping, the technical report and the filing. A review is quicker and narrower. If it shows the claim needs rebuilding, you can move to preparation, and we use what we have already learned about the claim.

Have a draft claim you want read?

Book a call and tell us where it stands. We reply the same working day.

Or write to taxadvisory@aswatax.co.uk

Last reviewed 11 October 2026
Chartered Tax Adviser
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