Production Accountant: The New CT600P Requirement Most Productions Haven’t Planned For
UK film and high-end television production spend reached £6.8 billion in 2025, a 22% jump on the year before, and the tax incentive underpinning much of that growth — the Audio-Visual Expenditure Credit — has just picked up a new procedural requirement most productions haven’t budgeted time for. From 6 April 2026, any Corporation Tax return claiming AVEC must include a CT600P Creative Industries supplementary page, and HMRC is rejecting claims on this procedural basis alone, regardless of whether the underlying production genuinely qualifies.
This guide covers what a specialist production accountant actually does, how AVEC replaced the old Film Tax Relief system, the new CT600P requirement, and what specialist production accounting typically costs.
Quick Answer
A production accountant manages the tax credit claims, cast and crew payroll, and BFI certification process specific to film, television, and animation production companies. The Audio-Visual Expenditure Credit (AVEC), which replaced Film Tax Relief and related reliefs from January 2024, offers a 34% credit on qualifying UK core expenditure (39% for VFX costs), but from 6 April 2026, every Corporation Tax return claiming it must include a CT600P Creative Industries supplementary page — a genuinely new procedural requirement, separate from BFI cultural certification, that HMRC is already using as grounds to reject otherwise-qualifying claims. Fees typically run £1,500–£5,000 per production depending on budget size and claim complexity.
Key Takeaways
- UK film and high-end TV production spend reached £6.8 billion in 2025, up 22% on 2024, with over 180,000 people working across UK film and television production.
- From 6 April 2026, Corporation Tax returns claiming AVEC must include a CT600P Creative Industries supplementary page — missing it is a common, entirely avoidable reason claims are rejected or delayed.
- AVEC pays 34% on qualifying UK core expenditure, rising to 39% for UK visual effects costs, with the usual 80% cap on qualifying spend lifted specifically for VFX.
- Old Film Tax Relief, HETV, Children’s TV, and Animation Tax Relief closed to new productions from 1 April 2025 and close entirely for all productions on 1 April 2027.
- AVEC and R&D tax relief cannot both be claimed on the same costs — the two schemes are mutually exclusive for overlapping expenditure.
- Typical fees run £1,500–£5,000 per production, scaling with budget size and the complexity of the AVEC claim.
Table of Contents
- What Does a Production Accountant Actually Do?
- AVEC: What Replaced Film Tax Relief
- The New CT600P Requirement from April 2026
- The VFX Enhanced Rate and the 80% Cap
- BFI Certification: The Non-Negotiable Gateway
- AVEC vs R&D Relief: Why You Can’t Claim Both
- Cast and Crew: Payroll, Loan-Out Companies and IR35
- Production Accounting in London: What We See
- A Worked Example: The CT600P Rejection
- How Much Does It Cost?
- Common Mistakes People Make
- Accountant Insights: What We See in Practice
- Do You Need a Specialist Production Accountant? (Decision Framework)
- General Accountant vs Production Specialist
- Checklists
- FAQs
- Sources
- Final Thoughts
What Does a Production Accountant Actually Do?
Beyond standard company accounts, a production accountant manages production-specific cost tracking against AVEC-qualifying categories, coordinates the BFI cultural certification process, prepares and files the Corporation Tax return with the correct supplementary pages, manages cast and crew payroll including loan-out company arrangements, and tracks the completion-period timing that governs when certain claims — particularly the VFX enhanced rate — can actually be made.
AVEC: What Replaced Film Tax Relief
The Audio-Visual Expenditure Credit represents the most significant reform to UK screen tax incentives in over a decade. Announced in the Spring 2023 Budget and live from 1 January 2024, AVEC replaced four separate legacy reliefs — Film Tax Relief, High-End Television Relief, Children’s Television Relief, and Animation Tax Relief — with a single, simplified expenditure credit. Unlike the old reliefs, which worked as additional tax deductions, AVEC is a taxable credit calculated directly on qualifying UK core expenditure, claimed through the company’s Corporation Tax return.
The transition has a firm timeline: productions where principal photography began on or after 1 April 2025 must use AVEC exclusively. Productions that started before that date can continue under the old regime until it closes entirely on 1 April 2027. For productions straddling the transition, expenditure can sometimes be split — old rules for spend up to 31 December 2023, AVEC rules from 1 January 2024 onward — a nuance worth getting right given how it affects the total claim.
The New CT600P Requirement from April 2026
This is the change most production companies and their existing accountants haven’t fully absorbed yet. For Corporation Tax returns submitted on or after 6 April 2026 that include an AVEC claim, HMRC now requires the CT600P Creative Industries supplementary page to be attached alongside the standard CT600 return. This is a distinct, additional procedural requirement from BFI cultural certification — you can hold a valid BFI certificate and still have a claim rejected or delayed simply because the CT600P wasn’t included or wasn’t completed correctly.
The practical risk here is genuinely avoidable: missing certification or the required supplementary page has become a common reason claims stall on first submission, entirely separate from whether the underlying production actually qualifies for the credit. For a production team focused on creative and budget pressures, this is exactly the kind of compliance detail that benefits from a specialist accountant tracking it proactively, rather than discovering the gap only once HMRC has already rejected the return.
The VFX Enhanced Rate and the 80% Cap
AVEC’s standard rate is 34% of qualifying UK core expenditure. For UK visual effects costs specifically, an enhanced rate of 39% applies, following the Finance Bill 2024–25 reforms — a genuinely higher rate reflecting the government’s specific push to keep VFX work in the UK. Alongside the higher rate, the usual 80% cap on qualifying costs (relative to total global production spend) is lifted specifically for UK VFX expenditure, removing a limit that would otherwise restrict how much of a heavily VFX-driven budget could qualify. Crucially, the enhanced VFX rate can only be claimed once a production has received its final BFI certificate for the completion period — an interim claim during production still uses the standard 34% rate, with any enhanced-rate uplift only available once the production has genuinely finished.
BFI Certification: The Non-Negotiable Gateway
No AVEC claim proceeds without British Film Institute cultural certification confirming the production meets the relevant cultural test for its category. This sits alongside, not instead of, the CT600P requirement from April 2026 — both are independent gateways a claim must pass. Getting BFI certification underway early in a production’s life, rather than treating it as a late-stage administrative task, avoids it becoming the bottleneck holding up an otherwise-ready tax credit claim.
AVEC vs R&D Relief: Why You Can’t Claim Both
Production companies sometimes ask whether genuinely innovative technical work — a novel VFX pipeline, for instance — could qualify for both AVEC and R&D tax relief simultaneously. It can’t, on the same costs: the two schemes are mutually exclusive where expenditure overlaps, so a production company needs to determine which relief genuinely produces the better outcome for specific cost categories rather than assuming both can be layered together.
Cast and Crew: Payroll, Loan-Out Companies and IR35
Production payroll carries its own genuine complexity: cast and crew are frequently engaged through a mix of PAYE, self-employment, and loan-out companies (personal service companies through which an actor or senior crew member is paid), each with different tax and National Insurance treatment. Engagements structured through loan-out companies need reviewing against IR35/off-payroll working rules, since a genuinely disguised employment arrangement carries the same reclassification risk in production as in any other sector. Getting this structured correctly at the point of engagement avoids a much larger correction exercise once a production has wrapped and cast and crew have moved on to other projects.
Production Accounting in London: What We See
London and its surrounding studio belt remain the centre of gravity for UK screen production, with London-based visual effects roles growing by around 30% since 2021 alone, reflecting the concentration of major VFX houses, post-production facilities, and studio infrastructure in and around the capital. With over 180,000 people working across UK film and television production nationally, and inward investment productions from major US studios routinely basing in and around London, production accountants here handle a disproportionate share of the highest-value, most complex AVEC claims in the country — including the VFX-heavy productions the enhanced 39% rate was specifically designed to support.
A Worked Example: The CT600P Rejection
Illustrative Example: Say a production company completes principal photography in early 2026, secures BFI cultural certification without issue, and submits its Corporation Tax return with an AVEC claim in June 2026. The production genuinely qualifies on every substantive test — but the return omits the CT600P Creative Industries supplementary page, since the company’s existing accountant wasn’t yet aware of the April 2026 requirement. HMRC rejects the claim on submission, not because the production doesn’t qualify, but purely because a required form wasn’t attached — creating a delay in receiving the credit that proper awareness of the new requirement would have avoided entirely.
How Much Does It Cost?
£1,500 – £3,000
£3,000 – £5,000+
£4,000 – £8,000+
£800 – £2,500
£500 – £1,500, on top
Common Mistakes People Make
1. Assuming a qualifying production automatically means a successful claim
Why it happens: BFI certification feels like the main hurdle, so procedural filing requirements get less attention.
Consequence: A rejected or delayed claim purely because the CT600P wasn’t attached, despite genuine eligibility.
How to avoid it: Confirm your accountant is aware of and preparing the CT600P for any return submitted after 6 April 2026.
2. Claiming the enhanced VFX rate before the completion period
Why it happens: It’s tempting to apply the higher rate as soon as VFX costs are known.
Consequence: An incorrect interim claim, since the 39% rate only applies once BFI’s final certificate for the completion period has been received.
How to avoid it: Apply the standard 34% rate for interim claims, reserving the enhanced rate for the completion-period claim.
3. Assuming AVEC and R&D relief can be layered on the same costs
Why it happens: Genuinely innovative technical work can feel like it should qualify for both.
Consequence: An invalid claim structure, since the two reliefs are mutually exclusive on overlapping expenditure.
How to avoid it: Determine which relief applies to which cost category before submitting either claim.
4. Treating loan-out company arrangements as automatically outside IR35
Why it happens: Loan-out structures are industry-standard, so their tax treatment can be assumed rather than checked.
Consequence: Reclassification risk if a genuinely disguised employment arrangement is later challenged.
How to avoid it: Review loan-out engagements against IR35/off-payroll rules at the point of contracting, not after the production wraps.
5. Leaving BFI certification until late in the production schedule
Why it happens: It can feel like a background administrative task compared to creative and budget pressures.
Consequence: Certification becomes the bottleneck delaying an otherwise-ready tax credit claim.
How to avoid it: Start the BFI certification process early, in parallel with production rather than after it wraps.
Accountant Insights: What We See in Practice
- The CT600P requirement is, in our experience, still genuinely unknown to many production companies and even some general accountants — it’s recent enough to catch out otherwise well-prepared claims.
- VFX-heavy productions benefit disproportionately from proper enhanced-rate timing, since claiming too early at the standard rate leaves value on the table unnecessarily.
- Loan-out company arrangements reviewed at the contracting stage consistently avoid the reclassification issues we see in productions that only check IR35 status retrospectively.
- Productions that start BFI certification early rarely experience it as a bottleneck — the ones that leave it late routinely do.
- London-based VFX-heavy productions represent some of the most complex, highest-value AVEC claims we handle, given the enhanced rate and lifted cap specifically apply to this cost category.
Do You Need a Specialist Production Accountant?
Step 1: Confirm your CT600P readiness. Any AVEC claim filed after 6 April 2026 needs this supplementary page.
Step 2: Start BFI certification early. Don’t leave it as a late-stage task.
Step 3: Plan your VFX claim timing. Standard rate for interim claims, enhanced rate only at completion.
Step 4: Review cast/crew engagement structures. Confirm loan-out and IR35 treatment at the point of contracting.
Step 5: Choose based on genuine production-sector experience. AVEC, CT600P, and BFI certification all need current, specialist knowledge.
General Accountant vs Production Specialist
| Option | Advantages | Disadvantages | Best For |
|---|---|---|---|
| General accountant | Often cheaper; fine for a production company with no active AVEC claim | May not know the CT600P requirement or VFX rate timing rules | A dormant production company between projects with no current claim |
| Production accounting specialist | Tracks CT600P, BFI certification, VFX timing, and cast/crew structuring properly | Higher fee than a generalist | Any actively producing company claiming AVEC |
Checklists
Checklist 1: Before Filing an AVEC Claim
- ✓ Confirm BFI cultural certification is secured or in progress
- ✓ Prepare the CT600P Creative Industries supplementary page (mandatory from 6 April 2026)
- ✓ Confirm whether the claim is interim (standard rate) or completion-period (enhanced VFX rate eligible)
- ✓ Check for any overlap with R&D relief claims on the same costs
Checklist 2: Cast and Crew Setup
- ✓ Confirm engagement type (PAYE, self-employed, loan-out) for each role
- ✓ Review loan-out company arrangements against IR35 at contracting stage
- ✓ Set up payroll correctly before production begins, not retrospectively
FAQs
What is AVEC?
The Audio-Visual Expenditure Credit, a UK Corporation Tax credit for qualifying film, high-end TV, children’s TV, and animation productions, which replaced Film Tax Relief and related reliefs from January 2024.
What is the new CT600P requirement?
From 6 April 2026, Corporation Tax returns claiming AVEC must include a CT600P Creative Industries supplementary page — a separate procedural requirement from BFI certification, and a common reason claims are rejected if missed.
What rate does AVEC pay?
34% on qualifying UK core expenditure, rising to 39% for UK visual effects costs, with the usual 80% qualifying-cost cap lifted specifically for VFX.
When can I claim the enhanced VFX rate?
Only once the production has received its final BFI certificate for the completion period — interim claims during production use the standard 34% rate.
Can I claim both AVEC and R&D tax relief?
Not on the same costs — the two reliefs are mutually exclusive where expenditure overlaps.
When does Film Tax Relief close completely?
New productions have needed to use AVEC since 1 April 2025; the old reliefs close entirely for all remaining productions on 1 April 2027.
Do I need BFI certification for AVEC?
Yes — cultural certification from the British Film Institute is a non-negotiable gateway requirement, independent of the CT600P filing requirement.
How much does a production accountant cost?
Typically £1,500–£5,000 per production depending on budget size and claim complexity, with VFX-heavy productions often at the higher end.
Are loan-out companies subject to IR35?
They can be — engagements need reviewing against off-payroll working rules to confirm the arrangement is genuinely self-employed rather than disguised employment.
What happens if my AVEC claim is rejected for a missing CT600P?
The claim can typically be resubmitted with the correct supplementary page attached, but this causes a delay entirely avoidable with proper preparation from the outset.
Sources
- GOV.UK — Audio-Visual Expenditure Credit for Corporation Tax
- British Film Institute — Certification and tax relief guidance
- GOV.UK — CT600P Creative Industries supplementary page guidance
- HMRC — Finance Bill 2024–25: creative sector tax reliefs
- British Film Commission — Accessing UK tax reliefs
AVEC rates, BFI certification requirements, and CT600 filing rules are set by HMRC and the British Film Institute and subject to change — always confirm current requirements on GOV.UK and with the BFI before relying on this information.
Final Thoughts
AVEC has genuinely simplified the substance of UK screen tax relief compared to the old four-scheme system, but the April 2026 CT600P requirement is a reminder that procedural compliance can undo an otherwise perfectly valid claim. A specialist production accountant should be tracking BFI certification, correct VFX rate timing, and the CT600P requirement as standard practice, not leaving a production to discover a rejected claim after the fact.
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