Research and Development (R&D) tax relief for small and medium-sized enterprises
Find
How outto aboutclaim Corporation Tax relief you can claim for costs on R&D if you're a small and medium-sized enterprise with an accounting period that starts before 1 April 2024.
(SME).
- From:
-
HM Revenue & Customs - Published
- 23 December 2015
- Last updated
-
13
8OctoberMay20252024— See all updates
Contents
-
What
Smalltheandreliefmedium-sizedisenterprise(SME)R&Dtaxrelief -
Projects
Companiesthat docannot qualifyclaim -
Who
Whencanyoucannotclaim -
Linked
Checkandwhenpartnercostsenterprisesqualify -
How
Whichtocostsmeet the intensity conditionqualify -
If
Calculateyour credit exceeds the PAYEenhancedcapexpenditure -
What
Beforeyou needclaim Howto do nextclaim
There may be other steps you must complete before working out which relief you can claim. Check the steps you need to take to correctly claim R&D tax relief.
What the relief is
Research and Development (R&D) tax relief issupports availablecompanies forthat smallwork andon medium-sizedinnovative enterprisesprojects (SMEs)in withscience anand accounting period that starts before 1 April 2024. technology.
IfYou yourcannot accountingclaim periodif beginsthe onadvance oris afterin:
the1artshumanitiessocialAprilsciences,2024,includingyoueconomics
Small can claim under the Research and Developmentmedium-sized mergedenterprise scheme.
The(SME) R&D tax relief
This fortax SMEsrelief allows your company to: to:
- deduct an extra 86% of your qualifying costs
expenditurefrom your trading profit for tax purposes, as well as the normal 100% deduction, to make a total of 186% deductiondeduction - claim a payable tax credit if the company has claimed relief and made a loss
loss
The payable tax credit is worth up to:
- 10% of the surrenderable loss
loss - 14.5% of the surrenderable loss if the company meets the intensity condition
Unless foryou’re expenditureexempt onfrom orthe afterPAYE 1(Pay AprilAs 2023 (readYou howEarn) tocap, meetyour thetax intensitycredit conditionclaim sectioncannot ofbe thisover guide)
the cap.
IfTo you’reclaim makingthe yourrelief, first claim, you mayneed be able to applybe for advance assurance. This is a voluntarySME schemeand youshow canhow use as a guarantee (if your applicationproject ismeets accepted)the thatdefinition anyof R&D claim for tax reliefpurposes.
If willyou’re bemaking acceptedyour infirst lineclaim, withyou whatmay wasbe discussedable andto agreedapply infor youradvance application.assurance.
ProjectsTo thatmeet dothe notintensity qualify
YouYour cannotrelevant R&D expenditure claim(plus thisthat taxof reliefthe forrelevant R&D expenditure aof projectany if:
- it’s
connectedincompanies),themustarts,behumanitiesatorleastsocial40%sciencesof(includingyoureconomics) - you’ve
totalreceivedrelevantR&Dexpenditurerelief,(plusvaccinesthatresearchofreliefanyorconnectedboth,companies).Onlytotallingtradingmorecompaniesthanchargeable7.5tomillionUKeurosCorporationforTaxit - you’ve
(orreceivedcompaniesanyeligibleothertoStateclaimaidrelief(excludingforthepre-tradingSMEexpendituretaxunderrelief)sectionfor1045it - it’s
offorCorporationworkTaxsubcontractedActto2009)canyou - it’s
havesubsidisedrelevantR&Dexpenditure.Forinaccountingsomeperiodsotherbeginningway,onfororexampleafterby1aAprilgrant,2024ThebutSMEyouschememaywillbe ablereplacedtobyclaimenhancedonR&Dtheintensivepartsupport.thatThisis notonlysubsidised
Findavailable outto ifloss-making you can claim R&D expenditureintensive credit insteadSMEs.
WhoCompanies that can claim claim
ToYou can claim R&D tax relief forif SMEs,you’re youra companySME must have: with:
- less than 500 staff
staff - a turnover of under 100 million euros or a balance sheet total under 86 million euros
- an
If accountingyour periodcompany beginninghas beforeexternal 1investors, Aprilthis 2024
Youcan mustaffect includeyour theSME staff,status. turnoverYou andwill balanceneed sheetsto ofinclude anythe figures of linked orand partner companiesenterprises in your total when you work out if youyou’re cana claim R&DSME tax relief for SMEs.
Linked and partner enterprises
You’llThe need to include a proportion of the staff, turnover and balance sheets of partnerany or linked enterprises.or Thispartner enterprises should be basedincluded onin theyour percentage of voting rights and capital that connects the enterprises. total.
For example, if you own 30% of another enterprise you should include 30% of its staff, turnover and balance sheets when calculating if you’re a SME.
Linked enterprises enterprises
Your company is linked to another one if: if:
- it holds over 50% of the voting rights in another enterprise
enterprise - another enterprise holds over 50% of the voting rights in your company
company - it has other rights which allow it to control another enterprise
enterprise - another company has other rights which allow it to control your company
company - your company and another enterprise are both controlled by another party
party
Partner enterprises enterprises
You have a partner enterprise if: if:
- another company holds 25% or more of your voting rights or capital
capital - you hold 25% or more of another enterprise’s
company’svoting rights or capital
How
You will need to meetinclude a proportion of the intensitystaff, condition turnover and balance sheets of partner companies. This should be based on the percentage of voting rights and capital that connects the 2 companies.
AFor example, if you own 30% of another company meetsyou should include 30% of its staff, turnover and balance sheets when calculating if you’re a SME.
When you cannot claim
You cannot claim the intensitytax conditionrelief if: for a project if:
- it’s
you’veclaimingreceivedforStateanaidaccountingtotallingperiodmorebeginningthanbefore7.51millionAprileuros2024forandtheendingproject you’veonreceivedoranyafterother1StateAprilaid2023(excludingtheSMEtaxrelief)fortheproject- its
it’srelevantforR&Dworkexpendituresubcontractedistoatyou it’sleastsubsidised30%inofsomeitsothertotalway,expenditurefor(includingexamplethatbyofaanygrant,connectedbutcompanies)
Youyou willmay needbe able to meetclaim on the conditionpart forthat theis periodnot forsubsidised
Find whichout theif you can claim isR&D made.expenditure credit instead.
The
Check periodswhen costs qualify
Before you needmake a claim for R&D costs to considerget are: tax relief or a payable tax credit, check that the costs:
- the
areaccountingpartperiodofforawhichspecificprojecttomakeanadvanceinscienceortechnology,itcannotbeanadvanceinthe claimarts,ishumanitiesmadeorsocialsciences,includingeconomics - any
meetperiodstheofdefinitionaccount of connected personsR&D qualify(worldwide)forwhichtaxoverlaprelief,withlistedinthe claimant’ssectionaccounting‘Whichperiodcostsqualify’
You’ll
Which needcosts toqualify
You identifycan claim the coststax thatrelief relateon tosome of the periodscosts underyou consideration.incur Forfrom accountingthe periodsstart alignedto with the accountingend period of the claimant,project.
R&D usestarts thewhen exactwork figuresbegins forto thatresolve accountingthe period.
Youscientific mustor usetechnological auncertainty reasonableand methodends towhen allocatethat costsuncertainty ofis theresolved, connectedor companythe work to theresolve periodit ofstops.
The timefollowing coveredinformation bywill thetell accountingyou periodwhich ofcosts theyou claimantcan companyand wherecannot either: claim for.
- there
YouiscanaalsomismatchfindoffurtheraccountingguidanceperiodsinbetweenCIRD82000ofthe claimantCorporateIntangiblesResearchand oneDevelopmentorManual.ConsumablemoreitemsYouconnectedcancompany - a
claimconnectedforcompanytheisrelevantoverseasproportion(andofsoconsumablehasitemsnousedaccountingupperiodinfortheUKR&D,taxthispurposes)includes:fuelmaterialspowerwater
In
Youcertaincannotcircumstancesclaimitthemaycostsbeifappropriateyoutosellsplitorcoststransferonownershipaoftimethe(day)consumablebasis.itemsInusedotherupcasesinitthewillR&D.ClinicalbetrialsnecessaryvolunteersFortoR&Dconsiderprojectswhenincoststhewerepharmaceuticalincurredindustry,youcanclaimforpaymentsmadeto givetheasubjectsfairofresult,clinicalfortrials.Dataexample,licencewhereandR&DcloudexpenditurecomputingForisaccountingincurredperiodsunevenlybeginningthroughonaorperiod.afterAny1basisAprilyou2023,choosequalifyingshouldexpenditurebeisusedextendedconsistentlytoincludedatalicencecostsand youcloudshouldcomputingbecosts.Aabledatalicenceisalicenceto explainaccesseffectivelyandwhyuseyou’veausedcollectionit.ofdigitaldata.Relevant
CloudR&Dcomputingexpenditureincludes:datameansstoragehardwarecostsfacilitiesoperatingonsystemssoftwarewhichplatforms
YouR&Dcanreliefclaimcouldforbemostclaimeddataforandthecloudperiod,computingwhethercostsorspentnotonaR&D.ExternallyclaimprovidedisworkeractuallycostsWorkersmade.suppliedGenerally,byitamuststaffalsoproviderformsuchpartasofantheemploymenttotalagency,relevantarecosts.classedasexternallyprovidedworkers.Total
Yourelevant expenditure includes:can:- costs
claimthat100%areofbroughttheintorelevantaccountpayments,underifGenerallyyourAcceptedcompanyAccountingandPracticethe(GAAP)staffinprovidercalculatingaretheconnected claimprofits65%oftherelevantpaymentsmadetoa tradestaff—provider,ifwhichisnotconnectedtoyour accountscompany,areifpreparedtheycorrectlysupplyunderexternallyGAAP,providedthisworkerswillforbetheproject
StaffcostsForthatstafffeedworkingintodirectlyonthe profitR&Dbeforeproject,taxyouincanyourclaimprofitforandthelossfollowingaccountcosts,orasincomelongstatementastheyrelatetoR&D:bonuses- any
salaries wagespensionpre-tradingfundcostscontributionssecondaryonClasswhich1reliefNationalwouldInsurancebecontributionsavailablepaidunderbys1045theCTAcompany
In2009specificSMEcircumstancesscheme - any
youamountsmaydeductedalsoinclaimthefortaxancomputationelementunderofs1308administrativeCTAor2009supportConditionsstaffwhoworkto bedirectlysatisfiedsupport—aallowableproject,asforexample:humanresourcesusedtorecruita deductionspecificinpersoncomputingtoworkonthe profitprojectspecialistcleaningstaff
It
Thesedoesarenotknowninclude:asqualifyingindirectactivities.Thefollowingaresomeexamplesofstaffcoststhatyoucannotclaimfor:- any
redundancyamountpayments staffofcostsamortisationforaddedclericalbackorinmaintenancetheworktaxthatcomputationwouldunderhaves1308beenCTAdone2009anyway,Conditionsliketomanagingbepayroll
SoftwareYousatisfiedcan—claimallowableforassoftwarelicencefeesforR&Danda deductionreasonableinsharecomputingofthe profit - any
costsforsoftwarepartlyusedinyourR&Dactivities.SubcontractorcostsYouwhichcanconsistclaim:65%oftherelevantR&Dcostsmadetoa payment,subcontractortheorrelevantotherR&Dtransfercostsofifvalue,thetosubcontractoranotherisconnectedtoyourcompany
If
ExamplesyourofcreditcostsexceedsthatthedoPAYEnotcapqualifyThe tax
followingcreditareotherexamplesofcoststhatyou receivecannotinclaimfor:capitalexpenditure- the accounting
costperiodofcannotland theexceedcostofpatentsandtrademarksrentorrates
Calculatethe PAYEenhancedcap,expenditureFollowunlesstheseyou’restepsexempttofromcalculatethe cap.enhancedexpenditure.The
WorkPAYEoutcaptheamountcostsisthat£20,000areplusdirectly300%attributabletoR&D.Reduceanyrelevantsubcontractororexternalstaffproviderpaymentsto65%of the company’soriginalrelevantcost.AddPAYEallandcostsNationaltogether.MultiplyInsurancethecontributionsfigureliabilities.by86%.For
Addmorethisinformation,toreadtheCIRD90600-PAYEoriginalcap.R&Dexpenditurefigure.What
Ifyou needmakeatradingloss,youcanchooseto dosurrendernextthisandclaimapayabletaxcredit.If
Youyourcancompanyfindandmoreprojectinformationareoneligiblehowto claimconvertR&D tax relief forintosmallpayabletaxcreditsinCIRD90500oftheCorporateIntangiblesResearchand medium-sizedDevelopmententerprises,Manual.Beforeyou canclaimYouapplymustforfollowadvancetheseassurancestepstobeforefindyououtclaimifthetaxrelief,oryour claim willmaynotbe accepted.valid.You
Formustaccountingalsoperiodsbeginningorafter1April2023,check if you need tosubmitaclaimnotificationformtonotifyHMRCinadvanceofyourclaim.Findoutwhatyouneedtosendtotell HMRC that you’re planning to claim thisR&Drelief.taxrelief.From8August2023youmustsubmitanadditionalinformationformtosupportyourclaim.FindouthowtosendtheinformationandwhattosendwhenyousubmitdetailedinformationbeforeyouclaimR&Dtaxrelief.
How to claim
Updates
Claim or make an amendment using the Company Tax Return and:
completethesingleiXBRLcomputationsfileputan‘X’inbox656to thistellpagePublishedLastus23thatDecemberyou’ve2015submittedupdatedthe13claimOctobernotification2025inhref="#full-history">+boxshow657alltoupdatestellusthatyou’vesubmittedtheadditionalinformationformcompletethesupplementaryformCT600L-
Information
you’reaboutclaiminghowapayabletaxcreditorR&Dexpenditurecredit
Guidanceisavailableto meethelpyoucompleteyourCompanyTaxReturn.Ifyourtaxreliefclaimcoversmorethan12months,submitaseparateclaimforeachaccountingperiod.Youcanmakeaclaimfortaxreliefupto2yearsafterthe intensityendconditionofhasthebeenaccountingupdated.perioditrelatesto.Checkthe‘Beforeyouclaim’sectiontomakesurethatyourtaxreliefclaimwillbevalid.-
-
18 March 2024 Information about how to meet the Research and Development (R&D) intensity condition for loss-making SMEs has been added.
-
20 July 2023 The 'Staff costs' section has been updated to include the treatment of bonuses and clarify that in some specific circumstances, you can claim for an element of administrative or support staff if they relate to an R&D project. The 'Subcontractor costs' section, second bullet point has been updated to tell you that you can claim for the relevant R&D costs if the subcontractor is connected to your company. The information on when you must submit an additional information form has been updated from '1 August 2023' to '8 August 2023', and the text regarding voluntary submission of the additional information form before the mandatory date has been removed in step 2 of section 'Before you claim'.
-
14 April 2023 Added translation
-
1 April 2023 More information has been added about small and medium-sized company R&D tax relief, the companies that can claim, when you cannot claim and which costs qualify for tax relief. How to calculate the enhanced expenditure and how to claim have been updated. A new section has been added to tell you what you need to do before you claim the tax relief for accounting periods beginning on or after 1 April 2023 and for claims from 1 August 2023.
-
5 August 2022 Information about how to claim relief, including what you need to complete before using the online service to send details to support your claim has been updated in the 'How to claim R&D relief' and 'How to support your claim' section. The 'Making of the R&D easier for small companies guide' has now been removed from the 'Overview' section.
-
13 June 2019 The email address to send details for more than 10 research and development projects has been updated.
-
11 February 2019 Information about how you can now use the online service to support your Research and Development tax relief claim has been added.
-
15 February 2018 The date to make amended claims for reimbursed expenses has been changed from 31 January 2018 to 30 April 2018.
-
19 October 2016 Guidance updated to advise companies if they receive more than €500,000 a year in state aid, certain details will be published on the European Commission website.
-
23 December 2015 First published.
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Explore the topic
Update history
2025-10-15 09:47
Information has been updated to confirm that a company meets the intensity condition if its relevant Research and Development (R&D) expenditure is at least 40% of its total expenditure.
2025-10-13 15:44
Information about how to meet the intensity condition has been updated.
2024-05-08 13:13
Added translation
2024-03-18 13:22
Information about how to meet the Research and Development (R&D) intensity condition for loss-making SMEs has been added.
2023-07-20 16:02
The ‘Staff costs’ section has been updated to include the treatment of bonuses and clarify that in some specific circumstances, you can claim for an element of administrative or support staff if they relate to an R&D project. The ‘Subcontractor costs’ section, second bullet point has been updated to tell you that you can claim for the relevant R&D costs if the subcontractor is connected to your company. The information on when you must submit an additional information form has been updated from ‘1 August 2023’ to ‘8 August 2023’, and the text regarding voluntary submission of the additional information form before the mandatory date has been removed in step 2 of section ‘Before you claim’.
2023-04-14 08:45
Added translation
2023-04-01 00:15
More information has been added about small and medium-sized company R&D tax relief, the companies that can claim, when you cannot claim and which costs qualify for tax relief. How to calculate the enhanced expenditure and how to claim have been updated. A new section has been added to tell you what you need to do before you claim the tax relief for accounting periods beginning on or after 1 April 2023 and for claims from 1 August 2023.
2022-08-05 17:57
Information about how to claim relief, including what you need to complete before using the online service to send details to support your claim has been updated in the ‘How to claim R&D relief’ and ‘How to support your claim’ section. The ‘Making of the R&D easier for small companies guide’ has now been removed from the ‘Overview’ section.
Explore the topic
Update history
2025-10-15 09:47
Information has been updated to confirm that a company meets the intensity condition if its relevant Research and Development (R&D) expenditure is at least 40% of its total expenditure.
2025-10-13 15:44
Information about how to meet the intensity condition has been updated.
2024-05-08 13:13
Added translation
2024-03-18 13:22
Information about how to meet the Research and Development (R&D) intensity condition for loss-making SMEs has been added.
2023-07-20 16:02
The ‘Staff costs’ section has been updated to include the treatment of bonuses and clarify that in some specific circumstances, you can claim for an element of administrative or support staff if they relate to an R&D project. The ‘Subcontractor costs’ section, second bullet point has been updated to tell you that you can claim for the relevant R&D costs if the subcontractor is connected to your company. The information on when you must submit an additional information form has been updated from ‘1 August 2023’ to ‘8 August 2023’, and the text regarding voluntary submission of the additional information form before the mandatory date has been removed in step 2 of section ‘Before you claim’.
2023-04-14 08:45
Added translation
2023-04-01 00:15
More information has been added about small and medium-sized company R&D tax relief, the companies that can claim, when you cannot claim and which costs qualify for tax relief. How to calculate the enhanced expenditure and how to claim have been updated. A new section has been added to tell you what you need to do before you claim the tax relief for accounting periods beginning on or after 1 April 2023 and for claims from 1 August 2023.
2022-08-05 17:57
Information about how to claim relief, including what you need to complete before using the online service to send details to support your claim has been updated in the ‘How to claim R&D relief’ and ‘How to support your claim’ section. The ‘Making of the R&D easier for small companies guide’ has now been removed from the ‘Overview’ section.