At-a-glance comparison

The table below covers the features that determine fitness for UK construction payroll. CIS handling is a hard requirement for most contractors. Scroll right on mobile.

Platform GPS geofence CIS export Xero / QB Offline UK compliance Price
AttendIQ ✓ enforced ✓ native ✓ native CSCS, inductions, RTW From £4.50/worker/month
busybusy ✓ enforced ✗ none ✓ via export None From ~£7/user/month
ClockShark ✓ recorded ✗ none ✓ integration None From ~£8/user/month
BigChange ≈ via vehicle ✗ none ✓ integration None Custom pricing
Tradify ✗ no geofence ✗ none ✓ integration Partial None From ~£14/user/month

Prices approximate at June 2026. Verify on each vendor's website. ✓ = full support. ≈ = partial. ✗ = not available.

1. AttendIQ — Best overall for UK construction

What it does on timesheets

AttendIQ combines GPS-geofenced clock-in, biometric identity verification, and a two-stage approval workflow (site manager then payroll) in a single construction timesheet app. Pay rates cascade by site, overtime calculates automatically per site rules, and the payroll export is CIS-ready with UTR numbers and correct deduction rates. Approved timesheets push directly to Xero, QuickBooks, Sage, or BrightPay via native OAuth integration — no CSV, no middleware.

Key distinction

Timesheets in AttendIQ are a byproduct of attendance, not a separate process. Workers clock in for site access control and compliance — the timesheet builds automatically from that clock event. There is no separate “fill in your hours” step. This eliminates the biggest single source of disputed hours: the worker’s own record of time worked, unchecked against any independent data.

AttendIQ also covers the compliance requirements that timesheet apps ignore: CSCS card tracking, site induction records, right to work document expiry, and access rules. For a UK principal contractor managing their supply chain, this is the only platform in this comparison that connects timesheets to site compliance in a single workflow.

Pricing

  • Foundation: Free forever (competency management, skills matrix, expiry alerts — up to 250 workers, no card required)
  • Essential: £4.50/worker/month (annual billing, £1,000 one-off setup)
  • Complete: £7.00/worker/month (annual billing, £1,500 one-off setup)

Pros

  • Only UK platform combining GPS timesheets, CIS payroll export, CSCS compliance, inductions, and right to work in one workflow
  • Timesheets generated automatically from clock events — no separate step for workers
  • Two-stage approval built in as standard
  • Native Xero, QuickBooks, Sage, and BrightPay integration
  • Full offline capability for sites with poor signal
  • Foundation tier free for competency management

Cons

  • Per-worker pricing is less competitive for very small teams needing only basic timesheets
  • One-off setup fee applies on paid plans
  • Broader feature set requires a short onboarding process to configure correctly

Best for: UK contractors with 20–500+ workers who need timesheets as part of a complete compliance workflow, or who have CIS subcontract labour.

2. busybusy — Strong GPS tracking, no CIS support

busybusy is a US-based GPS time tracking platform with strong geofencing and photo clock-in features. It has significant adoption in construction in North America. In the UK it is used by contractors who prioritise GPS tracking over payroll integration depth.

On timesheets

busybusy records GPS clock-in and clock-out, enforces geofencing at the site level, and produces detailed time records by worker and job code. Approval workflows are available. The main gaps for UK contractors are the absence of any CIS handling, the limited depth of UK payroll integrations (Xero export is available but lacks construction-specific field mapping), and no construction compliance layer.

Pros

  • Strong GPS geofencing with photo verification
  • Good job costing and budget tracking
  • Offline recording

Cons

  • No CIS export or UTR handling — a hard blocker for most UK contractors
  • US-centric payroll integrations; Xero export lacks UK construction field mapping
  • No construction compliance features (CSCS, inductions, right to work)
  • Pricing is per user (admin seats), not per worker — cost structure differs from UK norms

Best for: International contractors or UK contractors with only PAYE labour and no CIS exposure, prioritising GPS tracking over compliance.

3. ClockShark — Good for field service, limited for construction

ClockShark is a GPS time tracking and scheduling platform built for field service businesses. It is used in construction, particularly for smaller contractors. Its GPS tracking is solid and it has a usable Xero integration, but it was not designed around UK construction payroll or compliance requirements.

On timesheets

ClockShark records GPS location at clock-in and out, supports photo verification, and has a manager approval step. The Xero integration pushes approved hours but does not map CIS deductions, pay rates by site, or overtime rules specific to construction contracts. For UK contractors with subcontract labour, the CIS gap makes it impractical as a standalone timesheet solution.

Pros

  • Strong GPS tracking with photo clock-in
  • Scheduling and job costing built in
  • Xero and QuickBooks integrations available
  • Offline capability

Cons

  • No CIS deduction handling
  • Payroll export lacks construction-specific fields
  • No UK construction compliance features
  • Per-user pricing not aligned to construction workforce model

Best for: Small UK contractors with PAYE-only labour who want GPS tracking and basic scheduling but do not need CIS or compliance management.

4. BigChange — UK-based, built for service not construction

BigChange is a UK field service management platform covering job scheduling, route planning, mobile workforce management, and timesheet recording. It is well established in the UK maintenance and service sector. It is not designed for construction sites.

On timesheets

BigChange tracks time via mobile job records and vehicle telematics rather than worker-initiated GPS clock-in. This suits service engineers completing discrete jobs but does not map well to construction sites where multiple workers clock on and off the same location simultaneously. There is no CIS handling, no site geofencing for clock-in enforcement, and no construction compliance layer.

Pros

  • UK-based company with UK support
  • Strong vehicle tracking and route optimisation
  • Good for scheduling service engineers
  • Xero integration available

Cons

  • Not designed for construction site clock-in workflows
  • No CIS export
  • No construction compliance (inductions, CSCS, right to work)
  • Custom pricing with no published per-worker rate

Best for: UK service and maintenance contractors with field engineers. Not appropriate for construction principal contractors or subcontractors with CIS labour.

5. Tradify — Job management for small trades, not construction sites

Tradify is a job management platform for small trades businesses: electricians, plumbers, builders doing domestic or light commercial work. It includes basic timesheet recording as part of job costing. It is not a construction site platform.

On timesheets

Workers log time against jobs in the Tradify app. There is no GPS geofencing, no site boundary enforcement, and no CIS export. Xero and QuickBooks integrations push job costs including labour, but the construction-specific payroll fields (CIS rate, UTR, site-level overtime rules) are not present. For anything beyond a sole trader or micro-contractor, Tradify hits its limits quickly.

Pros

  • Simple and easy to use for small teams
  • Good job quoting and invoicing alongside timesheets
  • Xero and QuickBooks integration

Cons

  • No GPS geofencing or site clock-in enforcement
  • No CIS handling
  • Per-user pricing becomes expensive for larger workforces
  • Not suitable for multi-site contractors or supply chain management

Best for: Sole traders and micro-contractors (under 5 workers) managing quotes, jobs, and basic timesheet recording in one place. Not appropriate for construction sites.

How to choose construction timesheet software for UK contractors

Five criteria separate construction timesheet software that works from generic platforms that do not. The same criteria apply whether you are evaluating a construction timesheet app for mobile workers or a desktop-based timesheet software UK platform for office-based payroll teams:

1. CIS handling — essential for UK subcontractors

If any workers are engaged under the Construction Industry Scheme (HMRC CIS 340), your platform must flag each worker as CIS or PAYE, store their UTR number, and apply the correct deduction rate. Of the five platforms in this comparison, only AttendIQ handles CIS. The others were built for markets or industries where CIS does not exist.

2. GPS geofencing — not just GPS recording

There is a significant difference between recording a GPS location at clock-in and enforcing that the worker is within the site boundary. Proper geofencing defines the site perimeter on a map and rejects clock-ins outside it. busybusy and AttendIQ enforce geofencing. ClockShark records GPS location but enforcement is weaker. BigChange and Tradify do not have site geofencing at all.

3. Two-stage approval

Construction payroll typically needs a site manager to verify the day’s attendance, then a payroll or commercial team to approve hours before export. A single sign-off step is insufficient. AttendIQ supports both stages in a single workflow. busybusy and ClockShark have basic approval steps but not the two-tier construction model.

4. Native payroll integration — not CSV export

A CSV that someone re-keys into Xero is not an integration. Native OAuth integration pushes approved hours automatically with the correct fields mapped — including CIS deductions, pay rates by site, and overtime rules. AttendIQ has native integration with Xero, QuickBooks, Sage, and BrightPay. The others have Xero connections, but without construction-specific field mapping, manual adjustment is still required.

5. Offline capability

Construction sites frequently have no mobile signal. Clock events must record locally on the device and sync when signal returns, with an auditable record of when the sync occurred. All five platforms in this comparison have some offline capability, though the robustness varies.

Construction timesheet app: what to look for on mobile

Most construction workers do not sit at a desk. A construction timesheet app needs to work in a high-vis jacket with gloved hands, on a 4G signal that keeps dropping, first thing on a cold morning. The mobile experience is not a secondary consideration. It is the primary one.

What a proper construction timesheet app requires

Clock-in must be a single tap, not a multi-step form. The screen must be readable in direct sunlight. The app must function offline and queue records for sync. Approval workflows must work from a phone, not just a desktop admin panel. Notifications for missing clock-outs, overtime alerts, and pending approvals need to reach supervisors in real time.

AttendIQ is built mobile-first: 48px tap targets, offline-first sync, and a supervisor dashboard that works on a phone in the same way it works in the browser. busybusy and ClockShark both have solid mobile apps and perform well on construction sites. BigChange and Tradify are primarily desktop platforms with companion apps; their mobile experience is less suited to field use.

iOS and Android support

All five platforms in this comparison support both iOS and Android. For construction workforces, Android is more common, particularly on lower-cost handsets. Check that the app works reliably on devices two to three generations old, not just current flagship hardware. Workers are not upgrading their phones for your timesheet app.

Kiosk mode for workers without smartphones

Some workers, particularly older operatives or short-term labour, will not have a compatible smartphone. A construction timesheet app that requires every worker to have their own device will have adoption problems on day one. AttendIQ supports QR-code kiosk mode at site entrances for workers without phones, while preserving GPS-geofenced clock-in for those who do. If workers without smartphones are common on your sites, verify that any platform you evaluate has a viable fallback before committing.

UK-specific requirements: CIS, PAYE, and timesheet software

Timesheet software UK contractors use has to handle something that most global platforms ignore entirely: the Construction Industry Scheme. CIS affects every UK contractor who engages subcontractors for construction work. Getting it wrong does not just create payroll errors. It creates HMRC liability.

What CIS means for timesheets

Under CIS, a principal contractor must deduct tax at source before paying a subcontractor for labour. The rate depends on the subcontractor's registration status: 20% for registered subcontractors, 30% for unregistered. The contractor must verify the subcontractor's registration with HMRC, apply the correct rate, and submit monthly returns.

None of this is handled by a generic timesheet tool. busybusy, ClockShark, BigChange, and Tradify are built for markets where CIS does not exist. They record hours and push them to payroll. They do not store UTR numbers, flag CIS versus PAYE status per worker, or calculate deduction rates. A UK contractor using one of these platforms for a workforce with CIS subcontractors will need a separate process to manage CIS, which typically means a spreadsheet sitting between the timesheet app and the payroll system.

AttendIQ handles CIS natively: each worker is flagged as CIS or PAYE at onboarding, their UTR number is stored, and the correct deduction rate exports with the timesheet data. For UK principal contractors managing supply chain labour, this is not a nice-to-have. It is a hard requirement.

PAYE workers alongside CIS subcontractors

Most construction sites have a mix: some directly employed PAYE workers and some CIS subcontractors, sometimes from multiple supply chain companies. The timesheet system needs to handle both correctly in the same payroll run. AttendIQ handles this in a single export. The others require separate processes for each employment type, which adds complexity and creates reconciliation risk at payroll time.

Working Time Regulations

The Working Time Regulations 1998 require UK employers to keep records of working hours sufficient to demonstrate compliance with the 48-hour weekly limit. A GPS-verified digital timesheet system provides these records automatically. A paper-based system that has been partly reconstructed at the end of the week does not. This is relevant both to HMRC CIS compliance and to HSE inspections under CDM 2015.

Construction time tracking software vs timesheet software

The terms "time tracking software" and "timesheet software" are used interchangeably in most product descriptions, but they describe different things in a construction context. Understanding the distinction helps you evaluate whether a platform actually fits the workflow.

Time tracking software

Construction time tracking software records when workers start and stop working. The output is a log: worker A clocked in at 07:04, clocked out at 16:31. That is time tracking. busybusy, ClockShark, and the time tracking features of BigChange and Tradify are fundamentally time tracking tools. They tell you how long someone was on site.

Timesheet software

Timesheet software takes those raw time records and converts them into approved, payroll-ready timesheets. It calculates regular hours versus overtime according to configured shift rules. It routes timesheets through a manager approval workflow. It exports in the format your payroll system expects, with the correct fields mapped: pay rate, CIS status, overtime rate, site code. The output is not just a log. It is a document that goes directly into a payroll run.

Why the distinction matters

If you buy a time tracking platform thinking it is a timesheet system, you will find yourself building a spreadsheet in between. Someone has to take the time tracking export, apply overtime rules, add CIS flags, and format it for your payroll system. That manual step is where errors and disputes re-enter the process. A genuine construction timesheet system eliminates that gap. AttendIQ closes the loop from GPS clock-in directly to payroll export without any intermediate manual step.

When evaluating platforms described as "construction time tracking software", ask specifically: does approved time export directly to our payroll system with CIS fields, or does someone have to touch the data in between?

The numbers: payback in under a week

ROI example: 100 workers, paper timesheets

100 workers. Paper timesheets. 11% overpayment rate. £200 average daily rate. That is £22,000 per month in avoidable cost. AttendIQ at 100 workers costs £450/month on Essential. Payback in less than a week of the first payroll run.

The 8–15% overpayment figure is consistent across independent payroll audits in labour-intensive industries. The HSE’s Fee for Intervention scheme adds a further financial pressure: if an inspector visits and finds inadequate records, the “material breach” rate is currently £163/hour for the duration of the investigation. A site without verifiable attendance records is exposed on both fronts.

The sources of payroll overpayment are well documented:

  • Buddy punching: one worker clocking in for another — undetectable on paper, impossible with GPS geofencing tied to the individual’s phone
  • Systematic rounding: workers recording 8 hours when they worked 7.5 — small per worker, significant across 100 workers over a year
  • Disputed overtime: paper records that show overtime hours supervisors cannot verify or contradict — most disputes settle in the worker’s favour
  • Off-site hours: workers recording travel time as on-site time — invisible without a GPS geofence

Frequently asked questions

What is the best digital timesheet app for construction in the UK?

For UK construction contractors, AttendIQ is the strongest overall choice because it combines GPS geofenced clock-in, CIS-ready payroll export, native Xero and QuickBooks integration, and full compliance workflow in one platform. busybusy and ClockShark are strong on GPS tracking but lack CIS handling, which is essential for most UK contractors with subcontract labour. BigChange suits service and maintenance businesses. Tradify is best for sole traders and micro-contractors doing basic timesheet recording within job management.

How do digital timesheets reduce payroll costs in construction?

GPS-verified digital timesheets eliminate the main causes of payroll overpayment: buddy punching is prevented because clock-in is tied to the individual’s GPS location and phone, disputed start and finish times are resolved against the timestamped GPS record rather than memory, and off-site hours are excluded by geofence enforcement. Research consistently puts payroll leakage from paper timesheets at 8–15% in labour-intensive industries.

Do construction timesheet apps handle CIS deductions?

Of the platforms in this comparison, only AttendIQ handles CIS. It flags each worker as CIS or PAYE, stores UTR numbers, and exports at the correct deduction rate (20% for registered subcontractors, 30% unregistered) per HMRC CIS 340. busybusy, ClockShark, BigChange, and Tradify were built for markets or sectors where CIS does not apply and have no CIS handling.

What is the difference between GPS clock-in and geofenced clock-in?

GPS clock-in records where a worker is when they tap the button. Geofenced clock-in enforces a site boundary on a map and rejects or flags clock-ins outside that boundary. Without geofencing, a worker can clock in from outside the site or — with location spoofing — from anywhere. AttendIQ and busybusy enforce geofencing. ClockShark records GPS location but the boundary enforcement is less strict.

Do I need a timesheet app or a full compliance platform?

If your only problem is recording and approving hours, and you have no CIS labour, a standalone GPS timesheet app may be sufficient. If you also need to manage CSCS cards, site inductions, right to work documents, and CIS payroll in a joined-up way, a standalone timesheet tool creates fragmentation. A platform like AttendIQ generates timesheets as a byproduct of access control and compliance, which is more efficient overall and avoids maintaining separate systems for related data.

Can construction timesheet apps integrate with BrightPay?

AttendIQ integrates with BrightPay via CSV import today, with direct API sync in development. Xero, QuickBooks, and Sage are available as native integrations now. busybusy, ClockShark, BigChange, and Tradify do not have BrightPay integrations. BrightPay is the most widely used payroll platform among UK construction subcontractors, so this is a material gap if your supply chain uses it.

What is the best construction timesheet software for small contractors?

For small UK contractors with under 20 workers, AttendIQ Foundation is free and covers competency management, CSCS tracking, and expiry alerts. The Essential plan at £4.50/worker/month adds GPS timesheets, CIS payroll export, and Xero integration. Tradify is an option for sole traders doing basic job costing, but it has no GPS geofencing or CIS handling. busybusy and ClockShark work on GPS but lack CIS support, which is a blocker for most small contractors with any subcontract labour.

What is the best construction timesheet app for mobile workers?

For a construction workforce using smartphones on site, AttendIQ is the strongest choice. The mobile app handles GPS-geofenced clock-in, offline mode for sites with poor signal, and supervisor approval from a phone. busybusy and ClockShark also have solid mobile apps and work well for GPS time tracking, but neither handles CIS. For workers without smartphones, AttendIQ supports a QR-code kiosk fallback at the site entrance. When evaluating any construction timesheet app, test it on mid-range Android hardware rather than the latest iPhone. Most construction workers are not on flagship devices.

What is the difference between time tracking software and timesheet software for construction?

Time tracking software records when workers start and stop. Timesheet software takes those records, applies overtime rules, routes through a manager approval workflow, and exports to payroll in the correct format. Most platforms marketed as "construction time tracking software" are fundamentally time trackers: they produce a log of hours that still needs manual processing before it reaches your payroll system. A construction timesheet system closes the loop: GPS clock-in to payroll export without any intermediate manual step. AttendIQ is a timesheet system. busybusy and ClockShark are time tracking platforms.

What does timesheet software UK contractors need to handle that generic platforms do not?

UK construction contractors have requirements that most global timesheet platforms ignore. CIS handling is the most significant: flagging workers as CIS or PAYE, storing UTR numbers, and exporting the correct deduction rate (20% or 30%) per HMRC CIS 340. Working Time Regulations 1998 compliance is a second requirement: records must demonstrate who worked when and for how long, to a standard that satisfies an HSE inspection. UK payroll integration is a third gap: platforms built for the US market integrate with US payroll systems, not Xero, QuickBooks, Sage, or BrightPay in the way UK contractors need. AttendIQ is built specifically for UK construction and handles all three.