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Best Payment Notice Software UK: 2026 Guide

A pay-less notice served a day late turns the applied-for figure into the figure you owe. This guide compares the tools that track that timetable, and is honest that most construction platforms certify payment without automating a single notice.

TL;DR

If you issue or receive Construction Act notices every month and want the deadline, the notice and the application to be one workflow, Site Samurai is the closest fit, published at £99, £199 and £699 per month with unlimited users. If your bottleneck is the volume and consistency of incoming subcontractor claims rather than the notices themselves, Payapps is the category leader and the better buy. If certification belongs to finance and must sit in the ledger with CIS, Access Coins Evo is stronger. Eque2 and Causeway are credible UK construction software houses, but neither publishes a Construction Act notice feature, and Archdesk names subcontractor pay applications without publishing notice automation. Spreadsheets plus standard-form templates remain a legitimate starting point and an unmanaged risk at volume.

Last reviewed: 2 September 2026. Data confidence: Vendor claims verified against the public pages cited on 2 September 2026. Where a vendor does not publish a notice capability, this guide says so rather than assuming one. Competitor source.

Weighted evaluation framework

Criterion

Weight

What good looks like

Red flag

Active criterion focus

The due date and the final date for payment are calculated from the contract form on the subcontract, and the notice window is counted for you.

Tools compared

Site Samurai

UK construction operations platform where the payment notice is generated from the application it answers, with the statutory dates calculated from the contract form.

Strengths

+Payment notices, pay-less notices and payee notices generated against the application, with due date and final date for payment tracked.
+Notices sit on the same record as the application, the valuation and the retention, so the numbers cannot drift apart.
+A dated record of what was issued and when, which is the evidence that matters if the sum is later disputed.
+Free downloadable notice templates for JCT, NEC4 and Scheme-default subcontracts, for the contracts you have not yet moved across.
+Unlimited users, so the QS issuing the notice and the director approving it are in the same system.

Limitations

-Not a ledger: it syncs to Xero or Sage rather than replacing construction accounting.
-One accounting connection is active per organisation — Xero or Sage, not both.
-Built around UK contract forms; overseas payment regimes are not modelled.

Best for UK contractors who issue or receive notices monthly and want the deadline, the notice and the application to be one workflow.

Pricing: Published: £99, £199 and £699 per month with unlimited users and a 14-day trial. You add a card at signup but are not charged until it ends.

Payapps

The category leader for main-contractor and subcontractor claim collaboration. If your problem is the volume and consistency of incoming applications, this is the product built for it.

Strengths

+One consistent way for subcontractors to submit claims and one workflow for the main contractor to assess, approve and track them.
+Purpose-built for the claim exchange rather than bolted onto a wider platform, which shows in how quickly assessors get through a month end.
+Explicitly aimed at reducing payment disputes.
+Issues payment schedules back to the claimant, and publishes retention money tracking and release alongside the claim workflow.

Limitations

-The public site describes progress claims and payment schedules rather than UK Construction Act payment and pay-less notices.
-Publishes subcontractor pricing in Australian dollars only; no GBP price is published.
-The claim exchange is the product: valuations and the final account still live elsewhere.

Best for Main contractors with a large subcontractor base whose priority is getting every claim in through one door in a consistent format.

Pricing: Publishes subcontractor pricing in Australian dollars only, with custom main-contractor pricing. No GBP price is published.

Access Coins Evo

Construction ERP from The Access Group. Payment sits inside the ledger, which is exactly right if finance owns certification and wrong if the QS does.

Strengths

+Applications for payment and subcontractor valuation workflows published as part of the product.
+Automated CIS verification and deduction calculations applied to subcontractor payments.
+HMRC-recognised CIS returns and Making Tax Digital compliance.
+Certification and the cost report read from the same ledger, so there is no reconciliation step.

Limitations

-Construction Act notice automation is not published as a feature.
-Per-user pricing, quoted rather than published.
-An ERP implementation, with the timeline and consultancy that implies.

Best for Finance-led contractors who want certification, CIS and the cost report in one accounting system.

Pricing: Quote only. Pricing is stated as per user with annual, quarterly or monthly billing.

Eque2

UK construction software house whose products extend Sage and Microsoft Dynamics 365 Business Central with contract costing and commercial management.

Strengths

+Construction accounting, ERP, contract costing and commercial management built for Sage Accounting Solutions and Dynamics 365 Business Central.
+A sensible route if Sage is already the ledger and you want commercial management on top of it rather than beside it.
+UK construction focus rather than a localised global product.

Limitations

-The homepage does not describe payment certificates, applications for payment or Construction Act notices, so the notice capability needs confirming with the vendor directly.
-No pricing model is disclosed publicly.
-Value depends on already running Sage or Business Central.

Best for Sage or Dynamics 365 Business Central users who want construction contract costing inside the finance stack.

Pricing: No public price and no pricing model disclosed on the site.

Causeway

Long-established UK construction technology group. Broad estimating-to-accounting coverage, with less published detail about the notice workflow itself.

Strengths

+Project accounting, estimating and tendering modules under one roof.
+Deep UK construction market presence and understanding of how contractors buy.
+Applying AI to construction finance, with a claim of cutting invoice processing time by up to 70%.

Limitations

-The public site does not describe a payment or valuation notice feature, so certification detail has to come from a demo.
-No public price; sales are contact-led.
-Estimating and accounting are the centre of gravity, not the monthly notice cycle.

Best for Contractors buying an estimating-to-accounting stack where payment sits inside a larger procurement.

Pricing: No public price. The site directs to contact sales.

Archdesk

Configurable construction management platform with subcontractor pay applications named as part of the product and a flexible workflow builder.

Strengths

+Subcontractor Pay Applications, Subcontractor Bidding and Subcontractor Management are named product areas.
+External collaborators including subcontractors are free; only internal seats are charged.
+An annual-construction-volume pricing option gives unlimited users.
+Workflow configurability means a notice process can be modelled if you are willing to build it.

Limitations

-UK Construction Act notice automation is not a published feature.
-No published price: the pricing page routes to a quote wizard.
-Configurability is a cost as well as a benefit — someone has to own the configuration.

Best for Contractors who want one configurable platform and have someone internally to own the build.

Pricing: Quote only, via a configuration wizard.

Spreadsheets plus RICS and JCT template forms

The honest baseline, and still what most UK subcontractors under about fifteen people actually use. It works until volume or a dispute exposes it.

Strengths

+No licence cost and no implementation.
+Standard-form template notices are legally sound documents in their own right.
+Complete flexibility, and everyone in the office already knows how to use it.

Limitations

-Nothing calculates the due date or the final date for payment, so the deadline depends on somebody remembering.
-No evidence of service: a Word file gives no record of when a notice was issued or to whom.
-The application, the notice and the valuation drift apart across separate files.
-A missed pay-less notice makes the applied-for sum payable, and the spreadsheet will not warn you.

Best for Small contractors running a handful of subcontracts a month who have not yet been burned by a notified sum.

Pricing: Free, excluding the cost of a missed notice.

Pricing side by side

Item	Site Samurai	Other tools
Headline price	£99, £199 and £699 per month, published, with 17% off annually.	Access Coins Evo, Eque2, Causeway and Archdesk publish no price, and Payapps publishes subcontractor pricing in Australian dollars only. Spreadsheets and standard-form templates cost nothing to licence.
User / seat model	Unlimited users, so the QS who issues and the director who approves are both in the system.	Access Coins Evo prices per user; Archdesk charges internal seats and makes external collaborators free. Payapps prices subcontractor plans in tiers and quotes main contractors; Eque2 and Causeway do not publish a seat model.
Free trial	14-day trial, enough to run one notice cycle. You add a card at signup but are not charged until it ends, and you can cancel anytime.	No public self-serve trial across the compared vendors; evaluation is demo-led.
Pricing transparency	All three plan prices published in sterling, no discovery call required.	Access Coins Evo asks prospects to request a quote, Archdesk routes to a quote wizard, Causeway directs to contact sales, and Payapps publishes no GBP price for a UK buyer to budget against.
Notice templates	Free JCT, NEC4 and Scheme-default payment and pay-less notice templates published on the resource hub, whether or not you buy anything.	Standard-form template notices are available from the contract bodies; the compared platforms do not publish notice template libraries.

Competitor pricing claims sourced from public documentation.

See the full breakdown on Site Samurai pricing.

Feature comparison with sources

Feature	Other tools	Site Samurai
Subcontractor claim collection	Payapps gives subcontractors one consistent way to submit claims and the main-contractor team one workflow to assess, approve and track them. source On claim collection at volume, Payapps is the specialist and this is its strongest ground.	Subcontractors submit applications with supporting evidence and the QS assesses in-platform, on the record the notice is generated from.
Construction Act notice terminology	The Payapps public site describes progress claims and payment schedules, and does not use the terms payment notice or pay-less notice. source Payapps does not publish a UK-specific notice page, so confirm the Construction Act workflow with the vendor.	Payment notices, pay-less notices and payee notices are named workflows with statutory deadline tracking.
Payment dispute reduction	Payapps states its purpose includes reducing payment disputes and issuing payment schedules back to claimants. source	A dated record of every notice issued against every application, which is the evidence a dispute turns on.
Applications and valuation inside the ledger	Access Coins Evo publishes applications for payment and subcontractor valuation workflows as part of its construction ERP. source If certification must live in the ledger itself, the ERP is the better fit.	Applications, valuations and notices sit on one record and sync the certified figure to Xero or Sage.
CIS applied to certified payments	Access Coins Evo publishes automated CIS verification and deduction calculations for all subcontractor payments, plus HMRC-recognised CIS returns. source	CIS rates recorded per subcontractor and applied to every payment. Site Samurai does not verify with HMRC or file the return.
Sage and Dynamics 365 construction accounting	Eque2 publishes construction accounting, ERP, contract costing and commercial management software for Sage Accounting Solutions and Microsoft Dynamics 365 Business Central. source The Eque2 homepage does not describe payment certificates or notices, so that capability needs confirming directly.	Syncs to Xero or Sage as the ledger rather than replacing it; one accounting connection is active per organisation.
Estimating-to-accounting breadth	Causeway publishes project accounting, estimating and tendering modules, and states AI applied to construction finance cuts invoice processing time by up to 70%. source No payment or valuation notice feature is described on the Causeway public site.	Narrower by design: the application, the notice, the certificate and the retention, done properly for UK contract forms.
Subcontractor pay applications in a configurable platform	Archdesk names Subcontractor Pay Applications, Subcontractor Bidding and Subcontractor Management as product areas, with external collaborators free and only internal seats charged. source Archdesk does not publish Construction Act notice automation; the workflow would have to be built.	Notice deadlines derived from the contract form rather than configured by the customer.
Published pricing for the notice workflow	Archdesk routes pricing to a quote wizard and publishes no list price for its pay-application workflow. source	£99, £199 and £699 per month published, with notices included on every plan.

The statutory timetable this guide turns on

The Housing Grants, Construction and Regeneration Act 1996, Part II, sections 109 to 111, as amended by the Local Democracy, Economic Development and Construction Act 2009, sets the payment regime for construction contracts in the UK. Each contract must fix a due date and a final date for payment. The payer serves a payment notice stating the sum considered due and the basis of the calculation; to pay less than that notified sum, a pay-less notice must be served before the prescribed period ends. If neither notice is validly served in time, the sum in the payee's application becomes the notified sum and is payable. Where the contract does not comply, the Scheme for Construction Contracts (England and Wales) Regulations 1998 supplies the missing terms. JCT and NEC4 set different periods again, which is precisely why a single hard-coded payment period is a red flag rather than a simplification.

HGCRA 1996 Part II ss.109-111LDEDCA 2009Construction Act 1996 s.111Scheme for Construction Contracts 1998JCT SBC/Q 2016NEC4 ECC Option Y(UK)2notified sumfinal date for payment

Choose another tool if

Your bottleneck is the volume and inconsistency of incoming subcontractor claims.

Payapps exists for exactly that: one consistent submission route for subcontractors and one assessment workflow for your team. It is the category leader on this ground.

Certification must happen inside the ledger, with CIS returns filed from the same system.

Access Coins Evo publishes applications for payment, subcontractor valuation, automated CIS calculations and HMRC-recognised returns. A separate notice tool would be a second source of truth.

Sage or Dynamics 365 Business Central is already your construction ledger.

Eque2 builds contract costing and commercial management specifically for those stacks. Confirm the notice capability directly, since it is not published.

You issue two or three notices a month and have never had one challenged.

Standard-form templates and a spreadsheet are a legitimate answer at that volume. Take the free templates and revisit when the volume or the contract mix grows.

Choose Site Samurai if

You run subcontracts on more than one contract form.

Due date and final date for payment are derived per subcontract, so a JCT package and a Scheme-default package do not share one hard-coded period.

A notice has been served late, or nearly late, in the last twelve months.

The notice window is tracked against the application it answers, so the deadline is a property of the record rather than of somebody's diary.

You need to evidence what was served, when, months after the event.

Every notice is dated against the application and the subcontract, which is the record a dispute over a notified sum actually turns on.

You want the application, the notice, the certificate and the retention in one place.

The figure is not retyped between systems, so the notified sum, the certificate and the ledger cannot drift apart.

Priorities by role

Quantity Surveyor / Commercial Manager priorities

• Never miss a pay-less notice deadline on a subcontract with unusual payment terms.
• Issue the notice from the assessment rather than retyping the figure.
• Produce the record of what was served if the sum is later challenged.

See how Site Samurai handles payment and pay-less notices — start a free 14-day trial

Red flags when evaluating payment notice software

!A single payment period applied to every subcontract regardless of contract form.
!Notice templates that name no contract form and cite no statutory basis.
!No record of when a notice was issued, so service cannot be evidenced later.
!Payment notices produced in a different system from the valuation they answer.
!A vendor that cannot say whether its product issues a pay-less notice or merely stores one.
!Deadline tracking sold as a reminders feature rather than derived from the contract.

Recommended selection process

1List the contract forms across your live subcontracts, including any that fall back to the Scheme.
2Ask each vendor to show a pay-less notice being generated, not a screenshot of one being stored.
3Check how the due date and final date for payment are derived, and what happens when a subcontract has bespoke terms.
4Run one real month end in the trial, including a notice you would rather not have to serve.
5Ask what record exists of service, and retrieve a notice from three months ago in front of the vendor.
6Confirm the certified figure reaches your ledger with CIS applied, without a rekeying step.

Applications for Payment Software

See how Site Samurai handles this workflow

Payment Notice Templates

Free guides, templates, and tools

Pay Less Notices Explained

Free guides, templates, and tools

Payment Schedule Template

Free guides, templates, and tools

FAQ

Frequently Asked Questions

Payment notice software tracks the statutory payment timetable on a construction contract and produces the notices that timetable requires: the payment notice stating what the payer proposes to pay, the pay-less notice reducing that sum, and the payee notice a payee may serve when the payer is silent. The Housing Grants, Construction and Regeneration Act 1996, as amended in 2009, is what makes those documents matter.

If no valid payment notice or pay-less notice is served within the periods the contract sets, the sum stated in the payee's application becomes the notified sum and is payable. That is the single largest avoidable cashflow risk in UK subcontracting, and it is why deadline automation carries the heaviest weight in the framework on this page.

Payapps is the leading product for collecting and assessing subcontractor claims, and if the volume of incoming applications is your bottleneck it is the strongest answer on this page. Its public site describes progress claims and payment schedules rather than UK Construction Act payment and pay-less notices, so confirm the notice workflow directly with the vendor if that is what you are buying.

They can produce a legally sound document. What they cannot do is calculate the due date and the final date for payment from the contract form, warn you as the notice window closes, or evidence when the notice was served. That combination is what fails, and it usually fails on the month somebody is on holiday.

They handle certification. Access Coins Evo publishes applications for payment and subcontractor valuation workflows, and Causeway publishes project accounting and estimating. Neither publishes Construction Act notice automation as a feature, so treat certification depth and notice automation as two separate questions when you compare them.

A payment notice states the sum the payer considers due at the due date and the basis on which it was calculated. A pay-less notice comes later and reduces the sum actually paid below the notified sum, and must be served before the prescribed period ends. Both are governed by the Construction Act, and both have deadlines that depend on the contract form.

Yes. The forms set different payment periods and different notice requirements, and a Scheme-default subcontract runs to different periods again. Software that models one form and calls it done pushes the difference back onto whoever is keeping the diary. Site Samurai publishes free notice templates for each of the three routes.

Stop losing money to a late notice

Site Samurai generates payment notices, pay-less notices and payee notices from the application they answer, with the due date and final date for payment tracked per subcontract.