R&D tax credit statistics

HMRC R&D tax credit statistics 2026: September release (tax year 2024-25)

HMRC's September 2026 release, published on 29 September 2026, shows that £8.2 billion of R&D tax relief was claimed across 40,325 claims in the tax year 2024-25.

The statistics show fewer claims being made, with fewer new claimants, but more money being paid out across the various R&D tax schemes. This is the first release to include the merged RDEC scheme and ERIS, and it shows the relief is being concentrated in fewer, larger claims.

Figures from HMRC's September 2026 release, published 29 September 2026.

Share this page

Key figures for 2024-25 Provisional

HMRC calls 2024-25 "provisional" because companies can still claim for that year, so it includes an estimate for claims not yet received. These are still HMRC's latest and best estimates, and they will stand until HMRC's next set of R&D statistics, planned for autumn 2027.

  • Claims 40,325 Down 17% on 2023-24
  • Companies claiming 37,545 Down 16% on 2023-24
  • Relief claimed £8.2bn Up 5% on 2023-24
  • Average relief per claim about £200,000 Up 27% on 2023-24 Worked out from HMRC's rounded totals.
  • R&D spending behind the claims £51.0bn Up 7% on 2023-24
  • Relief, SME and ERIS schemes £2.3bn Down 29% on 2023-24 (as stated by HMRC) HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.
  • Relief, RDEC and merged RDEC schemes £5.9bn Up 29% on 2023-24 (as stated by HMRC) HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.
  • Claims by large companies, RDEC and merged RDEC 3,800 Up 4% on 2023-24 (as stated by HMRC)
  • First-time claimants, 2023-24 43% fewer SME scheme 3,405 (down 53%); RDEC scheme 1,845 (down 8%). As stated by HMRC. HMRC reports first-time claimants a year behind the rest, because its data for the latest year is partial.
Claims by scheme, UK, 2024-25
Scheme Claims Relief claimed Average per claim
SME scheme (excluding R&D intensive claims)HMRC's own SME total includes R&D intensive claims (the SME intensive rate in 2023-24, ERIS from 2024-25). They have their own line here, so the lines add up to the all-schemes total. 19,605 £1,420m £72,000
R&D intensive SMEs (SME intensive rate, then ERIS)Loss-making SMEs that spend a large share of their costs on R&D. In 2023-24 they claimed the SME scheme's higher intensive rate; from 2024-25 that was replaced by ERIS, enhanced R&D intensive support. HMRC reports both as one series. 4,965 £855m £170,000
RDEC, large companies 3,180 £3,600m £1,100,000
SMEs under large company scheme or RDECSMEs that cannot use the SME scheme, for example because they are subcontractors or their R&D is subsidised. They claimed under the large company scheme until RDEC began in April 2013, and HMRC reports both periods as one series. 5,740 £900m £160,000
Merged scheme, large companies 625 £1,005m £1,600,000
Merged scheme, SMEsHMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead. 6,215 £420m £68,000
All schemes 40,325 £8,200m £200,000

Comparing years: HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

HMRC's September 2026 release includes claims for accounting periods ending in 2024-25. It is the first to include the merged RDEC scheme and enhanced R&D intensive support (ERIS), and the first year in which the April 2023 rate changes apply in full. The result is fewer claims again, but more money: relief is up, and it is concentrating in fewer, larger claims.

Relief rose to £8.2bn

HMRC estimates that £8.2bn of relief was claimed for 2024-25, which is 5% more than the £7.8bn (revised figure) for 2023-24. The qualifying R&D spending behind those claims was £51bn, up 7%. On HMRC's revised figures, relief has now risen every year since 2020-21.

Last year HMRC estimated the relief for 2023-24 at £7.6bn. Late claims have lifted the 2023-24 claim figure to £7.8bn, and the number of claims for that year has been revised up from 46,950 to 48,610. Our September 2025 edition keeps the figures as first published.

Fewer claims again

There were 40,325 claims, 17% fewer than in 2023-24 and the lowest number since 2014-15. Claims peaked at 87,180 in 2020-21, so the number has more than halved in four years.

HMRC says a key driver "is believed to be the continuing impact of the additional information form", compulsory for every claim since 8 August 2023. It is unusual for HMRC to point to one of its own compliance measures in its statistics.

I spent 32 years at HMRC and I understand why compliance had to tighten. The test now is whether the pendulum has swung too far and the net is catching some claims it should not.

Jonathan Yeomans

Large companies made 3,800 claims across RDEC and merged RDEC, 4% more than a year earlier. Across all schemes, SME claims fell by 19%.

The new schemes

For accounting periods beginning on or after 1 April 2024, most companies claim under the merged RDEC scheme. Only loss-making SMEs that meet the R&D intensity test can claim under ERIS. The old SME and RDEC schemes closed to new periods from that date, so 2024-25 includes claims under both old and new rules.

Relief through RDEC and merged RDEC rose by 29% to £5.9bn, on 15,760 claims. 91% of merged RDEC claims came from SMEs. Relief through the SME scheme and ERIS fell by 29% to £2.3bn, on 24,570 claims, of which 4,965 were R&D intensive or ERIS claims. The scheme table at the top of this page shows each scheme separately.

HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead. The number of claims by large companies can still be compared.

The merged scheme also changes who claims for contracted out R&D. The company that decides to carry out the R&D now claims, not the contractor doing the work. HMRC says some SMEs that claimed RDEC as contractors may now make smaller or fewer claims.

Where the money goes

Large companies received £4.6bn of relief and SMEs £3.6bn. Large company R&D spending rose by 14% to £30.2bn. SME spending fell by 3% to £20.7bn, while SME claims fell by 19%. The SMEs leaving the relief are mainly small claimants, not the largest spenders.

The average claim rose by 27%. Claims over £2m rose by 14% in number and 21% in value. 58% of claims were for £50,000 or less and took 6% of the relief. 6% of claims were for £500,000 or more and took 69% of it, up from 62% a year earlier. You can see where a claim of your own would sit in Compare your own claim, further down this page.

R&D tax relief is still providing a significant return to some UK companies. It's just flowing to fewer, larger claims. Six per cent of claims now take 69% of the relief.

Jonathan Yeomans

New claimants

HMRC's first-time figures run a year behind. In 2023-24 there were 3,405 first-time SME claimants, 53% fewer than the year before, and 1,845 first-time RDEC claimants, down 8%. First-time claimants overall fell by 43%, the fifth fall in a row. Before 2019-20 the number had risen every year.

HMRC's figures show first-time SME claimants more than halved in 2023-24. Whatever the right number of claims is, a relief that new innovators stop finding isn't doing the job it was designed for.

Jonathan Yeomans

One group cannot appear in these figures at all. For accounting periods beginning on or after 1 April 2023, a company claiming for the first time, or that has not claimed in the previous three years, must notify HMRC within six months of the end of its accounting period. If it misses that deadline, it cannot claim. Those companies never make a claim, so HMRC's tables never count them.

Because the rule starts with periods beginning on or after 1 April 2023, it barely touches the 2023-24 figures, and HMRC's first-time data for 2024-25 is not yet complete. Next year's release will be the first real measure of its effect.

Which sectors claim

Information and communication, manufacturing and professional, scientific and technical activities made 75% of claims and received 71% of the relief, up from 72% of claims a year earlier. Manufacturing made 27% of claims and received 27% of the relief. Information and communication made 27% of claims and received 20%. Professional, scientific and technical activities made 20% and received 24%. The sector table has every sector.

Claims have fallen in every sector since 2021-22. In five they are down by more than 75%: accommodation and food, wholesale and retail, health and social work, real estate and education. These are smaller sectors, but the pattern is the same as last year: the more a sector relied on small claims, the faster it fell away.

Where claimants are based

Companies registered in London made 24% of claims and received 30% of the relief. The South East made 15% of claims and received 19%, and the East of England 10% and 14%. The figures follow the registered address, which is not always where the R&D is done. The region map and table show every region.

Error and fraud

These statistics do not measure error or fraud. HMRC's latest estimate, for 2023-24, is in its 2025-26 annual report, with an illustrative view of 2024-25 and 2025-26. We will look at it separately.

What the next release will show

The 2024-25 figures are provisional and will be revised next year. HMRC's next release, planned for autumn 2027, will cover 2025-26: the first full year of the merged scheme and ERIS, and the first with complete first-time claimant figures for 2024-25. This edition will keep showing the September 2026 figures as published.

Claims by region and sector over time

The chart shows the latest year first. Press play to watch each region or sector change from one year to the next, or move the slider to stop on any year. The same figures are in the table under the chart.

Number of claims by region, 2024-25. Regions are by the company's registered address. HMRC's unknown row is in the table, not the chart.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Number of claims by region, 2021-22 to 2024-25
Region 2021-222022-23p2023-24p2024-25p
North East 2,5951,9151,3701,120
North West 8,5456,2854,4703,720
Yorkshire and The Humber 6,3104,4603,2452,620
East Midlands 5,4004,0552,9552,520
West Midlands 6,8504,9953,6502,835
East of England 8,1806,3854,6403,900
London 18,83514,82511,7459,800
South East 12,2259,6907,1305,980
South West 6,4004,8803,6353,040
Wales 2,5001,9651,5001,205
Scotland 4,4353,6652,8552,415
Northern Ireland 2,1701,7301,3501,125
UnknownNot allocated by HMRC. Kept so the totals add up. 85756055

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Value of relief claimed by region, 2021-22 to 2024-25
Region 2021-222022-23p2023-24p2024-25p
North East £150m£140m£130m£115m
North West £570m£540m£505m£575m
Yorkshire and The Humber £375m£330m£285m£275m
East Midlands £345m£340m£320m£355m
West Midlands £495m£470m£545m£665m
East of England £845m£895m£1,020m£1,140m
London £2,465m£2,570m£2,465m£2,470m
South East £1,350m£1,395m£1,455m£1,560m
South West £395m£375m£395m£350m
Wales £160m£155m£125m£130m
Scotland £350m£370m£365m£365m
Northern Ireland £150m£155m£150m£165m
UnknownNot allocated by HMRC. Kept so the totals add up. £20m£30m£30m£35m

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Number of claims by sector, 2021-22 to 2024-25
Sector 2021-222022-23p2023-24p2024-25p
Agriculture, forestry and fishing 1,4451,2651,025770
Mining and quarrying 295240225190
Manufacturing 19,37015,87512,61011,090
Electricity, gas, steam and air conditioning 320250205175
Water, sewerage and waste 690550385290
Construction 8,1405,8153,5852,405
Wholesale and retail trade, repairs 7,1903,7202,2701,375
Transport and storage 835585350270
Accommodation and food 94544517575
Information and communication 18,51015,69512,48010,920
Financial and insurance 1,4651,180970805
Real estate 43023512040
Professional, scientific and technical 13,37011,1608,9808,195
Administrative and support services 5,9204,2402,9152,180
Public administration, defence and social security 90704545
Education 790440230125
Health and social work 1,8151,145615405
Arts, entertainment and recreation 845670490320
Other service activities 1,8551,200810550
Other or unknownNot allocated by HMRC. Kept so the totals add up. 22014513095

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Value of relief claimed by sector, 2021-22 to 2024-25
Sector 2021-222022-23p2023-24p2024-25p
Agriculture, forestry and fishing £95m£100m£90m£110m
Mining and quarrying £115m£120m£150m£150m
Manufacturing £1,770m£1,800m£2,045m£2,235m
Electricity, gas, steam and air conditioning £40m£45m£40m£30m
Water, sewerage and waste £50m£45m£35m£30m
Construction £530m£445m£375m£390m
Wholesale and retail trade, repairs £390m£265m£230m£220m
Transport and storage £65m£55m£50m£50m
Accommodation and food £30m£20m£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.
Information and communication £1,725m£1,830m£1,635m£1,630m
Financial and insurance £370m£370m£420m£500m
Real estate £15m£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.withheldHMRC shows "<10": under £10 million, withheld as too small to publish.
Professional, scientific and technical £1,535m£1,740m£1,805m£1,960m
Administrative and support services £555m£530m£565m£550m
Public administration, defence and social security £15m£15m£15m£15m
Education £30m£20m£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.
Health and social work £95m£80m£55m£45m
Arts, entertainment and recreation £110m£135m£115m£130m
Other service activities £130m£115m£110m£115m
Other or unknownNot allocated by HMRC. Kept so the totals add up. £25m£20m£25m£20m

Not applicable: scheme did not exist that year. Withheld: HMRC did not publish the figure. n/a: average not calculated.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Claims by region, 2024-25

HMRC places each claim in the region of the company's registered address, which is not always where the R&D is done. A group that registers in London but runs its labs elsewhere counts as London.

Claims, relief and average claim by region, 2024-25
Region Claims Relief claimed Average per claim
North East 1,120 £115m £100,000
North West 3,720 £575m £150,000
Yorkshire and The Humber 2,620 £275m £100,000
East Midlands 2,520 £355m £140,000
West Midlands 2,835 £665m £230,000
East of England 3,900 £1,140m £290,000
London 9,800 £2,470m £250,000
South East 5,980 £1,560m £260,000
South West 3,040 £350m £120,000
Wales 1,205 £130m £110,000
Scotland 2,415 £365m £150,000
Northern Ireland 1,125 £165m £150,000
Unknown Not allocated by HMRC. Kept so the totals add up. 55 £35m £640,000*
United Kingdom 40,325 £8,200m £200,000

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Claims by sector, 2024-25

Sectors follow the main industry code (SIC 2007) the company is registered under, which may differ from the field its R&D is in.

Claims, relief and average claim by sector, 2024-25
Sector Claims Relief claimed Average per claim
Agriculture, forestry and fishing 770 £110m £140,000
Mining and quarrying 190 £150m £790,000
Manufacturing 11,090 £2,235m £200,000
Electricity, gas, steam and air conditioning 175 £30m £170,000
Water, sewerage and waste 290 £30m £100,000
Construction 2,405 £390m £160,000
Wholesale and retail trade, repairs 1,375 £220m £160,000
Transport and storage 270 £50m £190,000
Accommodation and food 75 withheldHMRC shows "<10": under £10 million, withheld as too small to publish. n/a
Information and communication 10,920 £1,630m £150,000
Financial and insurance 805 £500m £620,000
Real estate 40 withheldHMRC shows "<10": under £10 million, withheld as too small to publish. n/a
Professional, scientific and technical 8,195 £1,960m £240,000
Administrative and support services 2,180 £550m £250,000
Public administration, defence and social security 45 £15m £330,000*
Education 125 withheldHMRC shows "<10": under £10 million, withheld as too small to publish. n/a
Health and social work 405 £45m £110,000
Arts, entertainment and recreation 320 £130m £410,000
Other service activities 550 £115m £210,000
Other or unknown Not allocated by HMRC. Kept so the totals add up. 95 £20m £210,000*
United Kingdom 40,325 £8,200m £200,000

Not applicable: scheme did not exist that year. Withheld: HMRC did not publish the figure. n/a: average not calculated.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Every year since 2000-01

UK totals by scheme for every year in this release.

Number of claims by scheme, UK, 2000-01 to 2024-25
Number of claims by scheme, UK
Tax year SME scheme (excluding R&D intensive claims)HMRC's own SME total includes R&D intensive claims (the SME intensive rate in 2023-24, ERIS from 2024-25). They have their own line here, so the lines add up to the all-schemes total. R&D intensive SMEs (SME intensive rate, then ERIS)Loss-making SMEs that spend a large share of their costs on R&D. In 2023-24 they claimed the SME scheme's higher intensive rate; from 2024-25 that was replaced by ERIS, enhanced R&D intensive support. HMRC reports both as one series. Large company scheme RDEC, large companies SMEs under large company scheme or RDECSMEs that cannot use the SME scheme, for example because they are subcontractors or their R&D is subsidised. They claimed under the large company scheme until RDEC began in April 2013, and HMRC reports both periods as one series. Merged scheme, large companies Merged scheme, SMEsHMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead. Vaccines research relief All schemes
2000-01 1,860not applicablenot applicablenot applicablenot applicable1,860
2001-02 3,410not applicablenot applicablenot applicablenot applicable3,410
2002-03 4,640630not applicable60not applicable5,320
2003-04 5,160920not applicable120106,210
2004-05 5,3101,090not applicable220106,620
2005-06 4,9601,200not applicable290106,450
2006-07 5,2701,320not applicable350106,940
2007-08 5,9901,640not applicable400108,020
2008-09 6,6701,810not applicable440108,920
2009-10 7,4701,830not applicable490109,770
2010-11 8,2801,960not applicable5301010,750
2011-12 10,0302,150not applicable5101012,670
2012-13 13,1402,380not applicable5801016,070
2013-14 15,5851,6751,115955withheldHMRC shows "<10": fewer than 10 claims, withheld as too small to publish.19,335
2014-15 29,7751,3352,4601,990withheldHMRC shows "<10": fewer than 10 claims, withheld as too small to publish.35,565
2015-16 37,1059152,9502,700withheldHMRC shows "<10": fewer than 10 claims, withheld as too small to publish.43,665
2016-17 45,4403,9353,64053,015
2017-18 53,9104,0104,37062,290
2018-19 65,9404,0354,56074,535
2019-20 74,1904,3855,43084,005
2020-21 76,1354,2506,79587,180
2021-22 73,1154,1507,27084,535
2022-23p 54,2853,7806,86064,925
2023-24p 34,0804,0303,6656,84048,610
2024-25p 19,6054,9653,1805,7406256,21540,325

Not applicable: scheme did not exist that year. Withheld: HMRC did not publish the figure. n/a: average not calculated.

2000-01 to 2015-16 are from HMRC's September 2025 release. HMRC's September 2026 tables start later, and it does not revise years this old, so they are carried over unchanged.

Comparing years: HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Value of relief claimed by scheme, UK, 2000-01 to 2024-25
Value of relief claimed by scheme, UK
Tax year SME scheme (excluding R&D intensive claims)HMRC's own SME total includes R&D intensive claims (the SME intensive rate in 2023-24, ERIS from 2024-25). They have their own line here, so the lines add up to the all-schemes total. R&D intensive SMEs (SME intensive rate, then ERIS)Loss-making SMEs that spend a large share of their costs on R&D. In 2023-24 they claimed the SME scheme's higher intensive rate; from 2024-25 that was replaced by ERIS, enhanced R&D intensive support. HMRC reports both as one series. Large company scheme RDEC, large companies SMEs under large company scheme or RDECSMEs that cannot use the SME scheme, for example because they are subcontractors or their R&D is subsidised. They claimed under the large company scheme until RDEC began in April 2013, and HMRC reports both periods as one series. Merged scheme, large companies Merged scheme, SMEsHMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead. Vaccines research relief All schemes
2000-01 £70mnot applicablenot applicablenot applicablenot applicable£70m
2001-02 £170mnot applicablenot applicablenot applicablenot applicable£170m
2002-03 £210m£200mnot applicablewithheldHMRC shows "<10": under £10 million, withheld as too small to publish.not applicable£410m
2003-04 £195m£340mnot applicablewithheldHMRC shows "<10": under £10 million, withheld as too small to publish.withheldHMRC shows "<10": under £10 million, withheld as too small to publish.£540m
2004-05 £190m£390mnot applicablewithheldHMRC shows "<10": under £10 million, withheld as too small to publish.withheldHMRC shows "<10": under £10 million, withheld as too small to publish.£590m
2005-06 £185m£450mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£640m
2006-07 £200m£480mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£690m
2007-08 £245m£550mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£810m
2008-09 £265m£730mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,000m
2009-10 £320m£670mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,010m
2010-11 £355m£750mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,110m
2011-12 £435m£780mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,220m
2012-13 £615m£760mnot applicable£10mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,370m
2013-14 £705m£280m£625m£30mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£1,640m
2014-15 £1,315m£120m£1,490m£100mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£3,025m
2015-16 £1,760m£70m£1,985m£155mwithheldHMRC shows "<10": under £10 million, withheld as too small to publish.£3,975m
2016-17 £2,265m£2,010m£215m£4,490m
2017-18 £2,740m£2,135m£275m£5,150m
2018-19 £3,510m£2,480m£320m£6,310m
2019-20 £4,185m£2,290m£420m£6,890m
2020-21 £4,200m£2,250m£405m£6,855m
2021-22 £4,695m£2,495m£485m£7,680m
2022-23p £4,515m£2,655m£590m£7,760m
2023-24p £2,395m£795m£3,725m£880m£7,795m
2024-25p £1,420m£855m£3,600m£900m£1,005m£420m£8,200m

Not applicable: scheme did not exist that year. Withheld: HMRC did not publish the figure. n/a: average not calculated.

2000-01 to 2015-16 are from HMRC's September 2025 release. HMRC's September 2026 tables start later, and it does not revise years this old, so they are carried over unchanged.

Comparing years: HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

Charts to download

The key findings from the September 2026 HMRC R&D statistics as images, free to share or use in reporting. Please keep the source line on each image.

Source: HMRC, Research and Development Tax Credits Statistics, September 2026 release. HMRC publication on GOV.UK

About these figures

  • Source. HMRC, Research and Development Tax Credits Statistics, September 2026 release, published 29 September 2026. Read HMRC's publication on GOV.UK, or download HMRC's tables.
  • Rounding. HMRC rounds every figure separately: claim counts to the nearest 5 and money to the nearest £5 million. Parts may not add up exactly to the totals shown. Where HMRC withholds a figure, because it is very small or could identify individual companies, it appears as "withheld"; the information button beside it gives HMRC's own marker ("<10" or "disclosive"). A dash (–) means the scheme did not exist that year.
  • Provisional years. 2022-23, 2023-24 and 2024-25 are provisional, marked p in the tables. Companies have up to two years after the end of an accounting period to claim, so HMRC revises these figures in later releases, and the latest year includes HMRC's estimate of claims not yet received.
  • Value of relief. The money figures are the relief or credit claimed, which HMRC calls the cost of support. They are not the amount companies spent on R&D, which is shown separately where HMRC publishes it.
  • Regions. Claims are placed by the postcode of the company's registered address, not where the R&D takes place. HMRC's "Unknown" row is shown in the tables so the totals add up, but it is not on the map or in the chart.
  • Sectors. Sectors follow the company's main registered industry code (SIC 2007), which may not match the industry its R&D serves.
  • Averages. HMRC does not publish averages. We work them out by dividing the rounded value of relief by the rounded number of claims, and round the result to two significant figures so it does not look more exact than it is. Where rounding could move an average by more than 10%, it is marked * as a rough guide. Where either figure is withheld, no average is given (n/a).
  • Comparing years. HMRC says SME figures for 2024-25 are not comparable with earlier years, because some SMEs now claim under the new merged scheme instead.
  • Licence. Contains public sector information licensed under the Open Government Licence v3.0. Map based on Office for National Statistics boundaries, licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2025.
  • Independence. Adviser Radar presents these figures as HMRC publishes them.

Sources

  1. HMRC, Research and Development Tax Credits Statistics: September 2026, published 29 September 2026. HMRC's release page, including the figures HMRC states in its text.
  2. HMRC, Research and Development Tax Credits: main tables, September 2026. Tables RD1, RD2 and RD4 to RD8.
  3. HMRC, Research and Development Tax Credits Statistics: September 2025, main tables RD1, RD2 and RD4. The UK figures for 2000-01 to 2015-16, which the September 2026 tables no longer cover.
  4. Office for National Statistics, ITL1 region boundaries, for the region map.