Last updated: October 2026. Reviewed by the BespokeCRMs team, subject matter experts in CRM systems for regulated UK businesses. Sources: HM Revenue and Customs (HMRC) and GOV.UK guidance on the Construction Industry Scheme and the VAT domestic reverse charge, the Department for Business and Trade, the Office for National Statistics, the Royal Institution of Chartered Surveyors, legislation.gov.uk, and published UK software pricing. Full citations appear at the end of this article. Part of our CRM by Industry series.
TL;DR: Most UK construction firms do not need a bespoke CRM. They need systems that handle the Construction Industry Scheme, the VAT reverse charge, retention and job costing, which generic sales CRMs do not do out of the box. Start with accounting software plus a job-costing tool, and build custom only when your project workflows outgrow packaged software.
Construction has more small and medium-sized enterprises (SMEs) than any other sector in the United Kingdom: around 885,000 construction SMEs were operating at the start of 2025, roughly 16% of all UK SMEs.[1] Digital adoption across the industry remains patchy. In the Royal Institution of Chartered Surveyors' 2024 digitalisation report, a global survey in which the UK and Ireland made up 9% of responses, only 12% of respondents used digital tools on all of their projects, averaged across six areas of work, and 43% used no digital technologies on any of their projects in those areas.[2] If you run a contracting business and you are still reconciling job costs in spreadsheets, you are far from alone. This guide explains what a construction Customer Relationship Management (CRM) system actually has to do in the UK, where generic platforms fall short, and how to decide between off-the-shelf software and a bespoke build.
This article belongs to our CRM by Industry pillar. For the broader decision framework that applies across every sector, read our guide to whether you should build or buy a CRM.
Why construction CRM is a different problem
A CRM for a construction company has to span two very different worlds. The front office runs on leads, tenders, client relationships and pre-contract communications, which is the classic territory of a sales CRM. The back office runs on project financials: job costing, subcontractor payments, valuations, retention and statutory compliance. Generic CRM platforms were built for the first world and know little about the second.
That gap matters because construction money does not move like sales money. A contractor commits cost the moment a purchase order or subcontract order is approved, not when the invoice arrives. Revenue is usually certified through periodic valuations rather than invoiced in one go. Most construction contracts let the paying party hold back a percentage of each payment as retention, typically around 5%, with half usually released at completion and the rest after a defects liability period of typically 12 to 24 months.[3] And every payment to a subcontractor may carry a statutory tax deduction. A system that cannot model these flows will give you a confident but wrong picture of whether a project is making money.
The UK construction sector is large enough that this is a well-understood, well-served niche. The Office for National Statistics recorded 370,770 VAT and PAYE registered construction firms in Great Britain in the third quarter of 2024, with around 1.4 million employees (a figure that excludes the self-employed), and construction new work reached a record £140.7 billion in 2024 in current prices.[4] Software vendors have built for this market, which is exactly why bespoke is not the automatic answer.
What the Construction Industry Scheme means for your systems
The Construction Industry Scheme (CIS) is the single biggest reason a generic CRM cannot run a UK contracting business on its own. Under CIS, a contractor usually deducts money from payments to subcontractors for construction work and pays it to HMRC, where it counts as an advance payment towards the subcontractor's tax and National Insurance.[5]
The deduction rate depends on the subcontractor's status, and HMRC tells the contractor which rate to use when it verifies the subcontractor. The rates are set out below.[5]
| Subcontractor status | CIS deduction rate | Applies to |
|---|---|---|
| Gross payment status | 0% | Subcontractors HMRC has granted gross payment status after business, turnover and compliance tests |
| Registered, without gross payment status | 20% | Subcontractors registered for CIS |
| Unregistered | 30% | Subcontractors not registered for CIS |
Gross payment status requires a subcontractor to pass a business test, a turnover test and a compliance test.[6] Deductions are not taken from the whole invoice: the contractor starts from the gross amount, takes away VAT and amounts the subcontractor paid for materials, consumable stores, fuel (other than for travelling) and plant hired for the job, and applies the CIS rate to what is left.[5] Before paying a new subcontractor, the contractor must verify them with HMRC, and must also verify subcontractors used before if they have not been included on a CIS return in the current or last two tax years.[7]
The compliance calendar is unforgiving. Monthly CIS returns must reach HMRC by the 19th of the month following the end of each tax month.[8] A contractor that makes deductions must also give each subcontractor a payment and deduction statement within 14 days of the end of each tax month.[5] Late returns attract penalties of £100 at one day late and £200 at two months, rising to £300 or 5% of the CIS deductions on the return, whichever is higher, at six and twelve months, with a possible additional penalty of up to £3,000 or 100% of the deductions beyond that.[8] A system that does not track verification status, calculate deductions and prompt the monthly return is a compliance risk, not a convenience.
The 2026 CIS changes you need to plan for
Two sets of CIS changes took effect on 6 April 2026, and they pull in different directions. Construction businesses choosing software in 2026 should make sure whatever they buy can cope with both.
The first set is administrative. Contractors must once again file a nil return for any month in which they pay no subcontractors, unless they have told HMRC in advance that they will not be making payments; the requirement had been removed in 2015.[9] Separately, payments to local authorities and certain public bodies now fall outside the scope of CIS.[9] The reinstated nil return matters for system design: your CRM or accounting tool needs to know when a nil return is due, because a month with no payments now still needs either a nil return or an inactivity request, and late returns attract the penalties above.[8]
The second set is about fraud, and it raises the stakes considerably. The Finance Act 2026, which received Royal Assent on 18 March 2026, contains the CIS amendments.[10] From 6 April 2026, where it can be shown that a business knew or should have known that a transaction it entered into was connected with the fraudulent evasion of tax, HMRC can cancel its gross payment status immediately, make it liable for the lost tax, and charge a penalty of up to 30% of the lost tax to the business and to its directors or other connected persons.[11] A business whose gross payment status is cancelled on these grounds cannot reapply for five years, up from one year.[11] HMRC says the measures are aimed at the small minority of businesses that knowingly engage with fraudulent operators, and that they are modelled on countermeasures already used against VAT supply chain fraud. The government puts the Exchequer impact at £205 million in 2026 to 2027.[11]
The practical consequence is that supply chain due diligence is no longer just good housekeeping, it is a way to protect your cash flow and your gross status. A system that keeps a clean, auditable record of who you paid, what you verified and when, is now part of your defence. This is also a reminder to take qualified advice: the "knew or should have known" test is new to CIS, and how HMRC applies it will develop over time.
One point of confusion is worth clearing up. Compliance with VAT obligations was added to the gross payment status compliance test with effect from 6 April 2024.[12] That requirement is already in force and is separate from the 2026 fraud powers above.
The VAT domestic reverse charge and your invoicing
The VAT domestic reverse charge (DRC) for building and construction services must be used for most supplies of building and construction services, and it changes who accounts for VAT. It applies to standard-rated and reduced-rated services supplied between businesses registered for VAT in the UK and reported within CIS.[13] Under the DRC, the supplier does not account for output tax on the sale. Instead, the customer adds the VAT to the output tax on its own VAT Return and can reclaim it as input tax, subject to the normal rules. The charge has applied since 1 March 2021.[14]
The charge does not apply where the customer has given written confirmation that it is an end user or an intermediary supplier, and suppliers are expected to check their customer's VAT number and CIS registration first.[15] The distinction has to be made customer by customer and supply by supply, which is precisely the kind of conditional logic generic CRM invoicing does not handle.
HMRC tells businesses to make sure their accounting systems and software can deal with the reverse charge.[13] Invoices must make it clear that the domestic reverse charge applies and that the customer is required to account for the VAT, and must include the reference "reverse charge"; HMRC gives example wording such as "Customer to pay the VAT to HMRC".[14] A construction-aware system flags DRC-applicable supplies and generates a compliant invoice. A generic CRM that treats every invoice identically risks producing invoices that are simply wrong.
Retention: tracking money you are owed
Retention is money your business has earned but cannot yet collect, and tracking it is a core construction-software requirement. The government's 2017 consultation on retentions described the usual pattern: the paying party holds back a percentage of each payment, typically 5%, releases the first half at completion and the second half after a defects liability period of typically 12 to 24 months. The survey data in that consultation put the average retention held from contractors by clients at 4.8% of contract value.[3]
For a subcontractor running several projects at once, retention balances can add up to a serious sum of working capital sitting outside the business. Lose track of release dates across a portfolio and you leave cash on the table. Job-costing systems built for construction track withheld amounts, expected release dates and cumulative balances per contract, so nothing is forgotten when a defects period ends.
Reform is on its way. In March 2026 the government confirmed, in its response to its late payment consultation, that it would ban the deduction and withholding of retention payments under construction contracts, alongside maximum payment terms of 60 days; the consultation had proposed delivering the change by amending Part 2 of the Housing Grants, Construction and Regeneration Act 1996.[16] The Commercial Payments Bill, introduced to Parliament in May 2026, includes the retention ban. The government has said it will consult further on the timing for implementation, will provide a transition period, and will not apply the measures retrospectively.[17] Until a ban is in force, retention remains legal and widespread, and any system you buy must still track retention on contracts agreed under the current rules, so retention tracking is not a feature you can safely skip.
Job costing and CVR: the capability generic CRMs lack
Job costing is the function that separates real construction software from a rebadged sales CRM. Job costing tracks every cost attributable to a specific project, including labour, materials, plant, subcontractor payments and overheads, against the original estimate and current budget. It works at project level, so you can see in close to real time whether each job is profitable.
Cost-value reconciliation (CVR) is the discipline built on top of job costing. CVR is the regular comparison, usually monthly, of the actual cost of construction against the value of work completed to date, to confirm whether a project is over or under budget and still on course for its expected margin.[18] A meaningful CVR tracks the original budget broken down by cost code, approved variations, committed costs, actual costs to date, the value of work done and the forecast cost to complete.
Committed cost tracking is the detail that trips up generic tools. A construction system brings committed costs, such as approved orders that have not yet been invoiced, into the cost picture.[18] Standard bookkeeping records a cost when the supplier's bill is entered, so a tool that does not also track approved orders understates your true exposure on a live project and flatters your margin until it is too late to act.
The capabilities a UK construction firm needs, and that generic CRM platforms such as HubSpot, Salesforce, Pipedrive and Zoho do not provide out of the box, are:
- Project-level cost allocation and job costing
- Committed cost tracking before invoices arrive
- CVR reporting with a budget, actual and forecast view
- Retention tracking with release dates and balances
- Applications for payment and payment certificate generation
- CIS deduction calculation and per-subcontractor verification status
- DRC-compliant invoice generation for qualifying supplies
- Subcontract order management and valuation assessment
Some generic platforms can be extended with add-ons or custom development, but at that point you are building a construction system on top of a sales platform. These capabilities are not nice-to-haves bolted onto a sales pipeline. They are the core of how a contracting business understands its own profitability.
CRM, job-costing software or ERP: which do you actually need?
Most construction SMEs need elements of more than one system, and the honest answer to "CRM or ERP?" is usually "both, in proportion to your size". The table below sets out what each layer does.
| System type | What it handles | Best for |
|---|---|---|
| Generic CRM | Leads, tenders, client relationships, communications | Front-office sales and marketing only |
| Accounting software with CIS features | Bookkeeping, VAT, CIS calculation and returns | Micro and small firms with simple subcontracting |
| Construction job-costing tool | Job costing, CVR, retention, applications for payment | Contractors who need project profitability control |
| Construction ERP | Financials, procurement, payroll, project control, CIS | Larger contractors with complex project portfolios |
| Bespoke CRM | Whatever your specific workflows require, unified | Firms whose processes do not fit packaged tools |
A small contractor winning work through relationships and referrals may get most of the value from accounting software with CIS features plus a lightweight job-costing tool. A growing contractor managing dozens of live subcontract orders, multiple valuations and retention across a portfolio needs a dedicated job-costing platform or ERP. Only when those packaged tools force your processes into the wrong shape does a bespoke CRM build start to pay for itself.
What construction CRM software costs in the UK
Pricing spans a wide range, from a few pounds per user per month to six-figure custom builds, so it pays to map cost to need. The figures below are indicative; vendors change pricing regularly and several quote only on request, so verify directly before you buy.
| Option | Indicative UK price (2026) | Notes |
|---|---|---|
| Salesforce Starter Suite | From £20 per user per month[19] | Generic CRM, no construction features out of the box |
| Xero accounting | Plans from under £20 per month, plus £5 per month to submit contractor CIS returns (excluding VAT)[20] | CIS calculations and returns; not built for subcontract valuations |
| Construction finance or ERP platform (for example Eque2) | No price list on its website; pricing through a demo[21] | Job costing, variations, retention and applications for payment[21] |
| Construction project management platform (for example Procore) | Custom quote on an annual contract[22] | Project collaboration with unlimited users[22] |
| Bespoke CRM build | Project-based investment | Justified when packaged tools cannot fit your workflows |
Generic CRM pricing looks cheap, but the sticker price hides the fact that it does not do the construction-specific work out of the box, so you end up paying for a second system regardless. For a full breakdown of what a tailored system involves, see our guide to how much a bespoke CRM costs. If your accounting tool already files CIS but cannot manage subcontract valuations, the right next step may be integrating your existing tools rather than replacing them.
When off-the-shelf is the right call
Custom is not the answer for most contractors, and a good CRM partner will tell you so. Off-the-shelf construction software is the sensible choice when your workflows are standard, your project structures are conventional, and a packaged tool covers your CIS, retention and job-costing needs without heavy workarounds. Buying proven software gets you live faster, spreads cost over a subscription, and means someone else maintains the HMRC integrations as rules change.
Packaged tools are also the pragmatic choice when speed and budget are tight. If you are choosing between an imperfect off-the-shelf fit available now and a perfect custom build in nine months, the off-the-shelf tool usually wins, because the cost of running blind on job costs for nine months is real.
When a bespoke CRM makes sense
A bespoke build earns its keep when packaged software forces your business to work the wrong way. The clearest signals that you have outgrown off-the-shelf are unusual project or contract structures that no vendor models cleanly, the need to unify front-office relationship management with back-office job costing in one system rather than stitching several tools together, and integrations with HMRC, accounting and project tools that off-the-shelf products cannot deliver. Our guide to the seven signs you have outgrown off-the-shelf covers these triggers in detail.
A bespoke system also lets you bake compliance into the workflow rather than relying on staff discipline. Given the 2026 fraud powers, a contractor running a complex supply chain may decide that an auditable, integrated record of verification and payment is worth building precisely so it can demonstrate the due diligence HMRC now expects. That is a sound reason to talk to a CRM consultation team about a tailored approach.
A real-world scenario
Consider an illustrative scenario, a composite drawn from common patterns rather than a single client. A regional groundworks contractor with 40 staff was running its pipeline in a generic CRM, its job costs in spreadsheets, and its CIS through its accountant's separate software. Costs were only ever recorded once invoices arrived, so committed subcontract spend was invisible until month-end. On one £1.2 million scheme, the team believed they were on margin until a CVR exercise, run late because the data lived in three places, revealed committed costs had already eaten the contingency.
The fix was not a bespoke build. It was a construction job-costing tool integrated with their existing accounting software, so committed costs, retention and CIS sat in one reconciled view. The firm only revisited a custom approach two years later, when it began running framework contracts whose payment structures the packaged tool could not represent. That sequence, packaged first and bespoke only when genuinely outgrown, is the right order for most contractors. For a sector-specific view of how this plays out, see our construction industry page.
Frequently asked questions
Does a CRM handle CIS deductions?
Generic CRMs such as HubSpot, Salesforce and Pipedrive do not handle CIS deductions out of the box. You need construction-specific software, accounting software with CIS features, or a bespoke CRM integrated with HMRC's CIS service to verify subcontractors, apply the correct 0%, 20% or 30% deduction and file monthly returns.
Do construction companies need a CRM or an ERP?
Most construction SMEs need elements of both. A CRM manages leads, tenders and client relationships, while an ERP or job-costing system manages project financials, procurement and compliance. Smaller firms often combine a light CRM with accounting software; larger contractors move to an integrated ERP or a unified bespoke system.
What is the difference between a construction CRM and job-costing software?
A construction CRM focuses on the front office: lead generation, tender pipelines, client management and communications. Job-costing software focuses on the back office: tracking project costs, cost-value reconciliation, retention, subcontract orders and applications for payment. Many contractors need both layers, which is why construction ERPs and bespoke systems aim to unify them.
What is the CIS deduction rate for unregistered subcontractors?
The CIS deduction rate for unregistered subcontractors is 30%. Registered subcontractors without gross payment status are deducted at 20%, and those with gross payment status are paid with no deduction. The rate is applied after taking away VAT and costs the subcontractor paid directly, such as materials, fuel and plant hire.
What is CVR in construction?
CVR, or cost-value reconciliation, is the regular comparison of the actual cost of work on a project against the value of the work completed. Usually carried out monthly, it shows whether a project is over or under budget and on track for its expected margin. Generic CRM software does not support CVR without significant customisation.
Will the government ban retention in construction contracts?
The government intends to. In March 2026 it confirmed it would ban the deduction and withholding of retention payments under construction contracts, and the Commercial Payments Bill introduced in May 2026 includes the ban. Implementation timing is still to be consulted on, with a transition period, so retention remains legal for now.
How much does construction CRM software cost in the UK?
Generic CRMs such as Salesforce Starter Suite start from around £20 per user per month but lack construction features. Construction finance, ERP and project management platforms are usually priced on request, often on annual contracts. A bespoke construction CRM is a project-based investment, justified when packaged tools cannot fit your workflows.
Choosing well
The right system for a UK construction company is the one that matches how your business actually works, not the most expensive or the most bespoke. For most contractors that means accounting software with CIS features, paired with a construction job-costing tool that tracks committed costs, CVR and retention, and generates compliant CIS and reverse-charge documents. A bespoke CRM becomes the right answer when your workflows, contract structures or integration needs genuinely outgrow what packaged software can do, and not before.
If you are weighing that decision and want an honest assessment rather than a sales pitch, talk to our team. We design, build and maintain bespoke CRM systems for regulated and workflow-intensive UK businesses, and we will tell you plainly when off-the-shelf is the better choice; our honest comparison of bespoke and off-the-shelf CRM sets out how we make that call. Book a discovery call to talk through your construction CRM requirements.
The information in this article is general guidance on UK regulation and market practice. It is not legal, tax, financial or accounting advice, and it is not a substitute for advice specific to your business. Construction firms should consult a qualified accountant, tax adviser or solicitor before making decisions with CIS, VAT or contractual implications.
Sources
- Department for Business and Trade (GOV.UK), Business population estimates for the UK and regions 2025: statistical release (published 2 October 2025). Accessed 15 October 2026.
- Royal Institution of Chartered Surveyors, Digitalisation in construction report 2024 (published 15 November 2024; global survey, pages 5, 8 and 9). Accessed 15 October 2026.
- Department for Business, Energy and Industrial Strategy (GOV.UK), Retention payments in the construction industry: consultation (October 2017, pages 10 and 11). Accessed 15 October 2026.
- Office for National Statistics, Construction statistics, Great Britain: 2024 (released 19 February 2026). Accessed 15 October 2026.
- HMRC (GOV.UK), What you must do as a CIS contractor: make deductions and pay subcontractors. Accessed 15 October 2026.
- HMRC (GOV.UK), What you must do as a CIS subcontractor: gross payment status. Accessed 15 October 2026.
- HMRC (GOV.UK), What you must do as a CIS contractor: verify subcontractors. Accessed 15 October 2026.
- HMRC (GOV.UK), What you must do as a CIS contractor: file your monthly returns. Accessed 15 October 2026.
- HMRC (GOV.UK), Simplification and administrative improvements to the Construction Industry Scheme (published 13 March 2026, effective 6 April 2026). Accessed 15 October 2026.
- legislation.gov.uk, Finance Act 2026 (2026 c. 11, Royal Assent 18 March 2026; sections 220 to 222 amend the Construction Industry Scheme). Accessed 15 October 2026.
- HMRC (GOV.UK), Tackling Construction Industry Scheme fraud (published 26 November 2025, effective 6 April 2026). Accessed 15 October 2026.
- HMRC (GOV.UK), Strengthening the tests for gross payment status for the Construction Industry Scheme (published 22 November 2023, effective 6 April 2024). Accessed 15 October 2026.
- HMRC (GOV.UK), Check when you must use the VAT domestic reverse charge for building and construction services. Accessed 15 October 2026.
- HMRC (GOV.UK), VAT domestic reverse charge technical guide (last updated 18 September 2024). Accessed 15 October 2026.
- HMRC (GOV.UK), How to use the VAT domestic reverse charge if you supply building and construction services. Accessed 15 October 2026.
- Department for Business and Trade (GOV.UK), Late payment consultation: time to pay up, government response (published 24 March 2026). Accessed 15 October 2026.
- Department for Business and Trade (GOV.UK), Commercial Payments Bill: overview (published 19 May 2026). Accessed 15 October 2026.
- The Access Group, What is cost value reconciliation (CVR) in construction? (vendor explainer, posted 21 August 2025). Accessed 15 October 2026.
- Salesforce UK, Small business pricing (vendor pricing page). Accessed 15 October 2026.
- Xero UK, Pricing plans (vendor pricing page; prices exclude VAT). Accessed 15 October 2026.
- Eque2, Construction software (vendor site). Accessed 15 October 2026.
- Procore, Pricing (vendor pricing page). Accessed 15 October 2026.