// Three billing models, one platform

Three ways to bill work.
One platform that handles them all.

Set fixed prices for simple jobs, split labour and materials for variable ones, and run your external trades end-to-end with retention, compliance and staged claims built in.

3
Billing models
1
Workflow per job
Auto
Retention & CIS
100%
Audit trail
Priced Works

Agree a price. Do the job. Get paid.

For jobs where you know the price up front and that's what gets billed - no breakdown, no surprises.

"Fit these doors for £800." "Paint this room for £1,200." One job, one agreed price, one line on the invoice. The fastest way to set work up - nothing to track hour-by-hour.

Invoice · Plot 14 - door fit21 MAY
Hang and finish 4 internal doorsAgreed scope · per quote£800.00
Total£800.00
  • Worker marks complete, price flows through
  • One-line invoice, no time-tracking
  • Zero admin overhead
Key benefitSet the price once. The rest is automatic.
Best forRepeat tasks, well-defined scopes, housing plots, anything you'd quote as a single fixed sum.
Specific Works

Labour and materials, billed separately.

For jobs where a single fixed price isn't quite right - usually because materials are variable or hours might run over.

Instead of one lump sum, the invoice splits into two clear parts: labour (hours × rate) and materials (itemised costs). Recorded as the work happens. Everyone sees exactly where the money is going.

Invoice · Plot 14 - bathroom rewire21 MAY
Labour14.5 hours × £42/hr£609.00
Materials - copper cable, 50m£182.40
Materials - back boxes ×8£42.00
Materials - junction box ×2£28.60
Total£862.00
  • Hours logged as the work happens
  • Materials itemised line-by-line
  • Independent tracking, independent approval
Key benefitFull transparency. No arguments about what's included.
Best forElectrical, plumbing, building repairs, or any work where time and materials should be visible and tracked independently.
Sub-Contractors

External trades, end to end.

For the trades who aren't on your payroll - the plumbers, electricians, scaffolders and specialist firms who invoice you for their work.

Works differently in three important ways: retention is built in, document compliance is enforced, and large jobs can be billed in staged claims. Subbies see only their own view; admins see everything.

Claim 3/5 · Plastering package21 MAY
Stage 3 - first-floor skim£50k order · 60% complete£10,000.00
Retention5% withheld · cap £10k−£500.00
Net to pay£9,500.00
  • Retention withheld automatically, released at milestones
  • CSCS, insurance, certs enforced before payment
  • Stage-billed claims against an approved order
  • Subbies get a restricted view - only what's theirs
Key benefitTreats subbies as a first-class part of the business, not an afterthought bolted onto a timesheet.
Best forEvery external trade on a project, especially where retention, compliance or staged billing matters.
Priced Works Specific Works Sub-Contractors
BillingOne fixed priceLabour + materials, splitPer task or per claim
Who does the workAnyone (usually internal)Anyone (usually internal)External trades only
Invoice lines12+ (labour, materials)1+ (with retention deducted)
Retention withheldNoNoYes · configurable %
Document complianceOptionalOptionalEnforced · CSCS, insurance
Stage-billed claimsNoNoYes · Sub-Contractor Orders
Best forPredictable, fixed-scope jobsVariable time or materialsExternal trades, large packages
// Sub-Contractors, deeper

Three things subbie billing
does that other models don't.

External trades are a different animal. Retention, compliance, and staged billing aren't bolt-ons - they're how the work actually gets paid.

Retention is built in

Set a percentage (typically 5%) and a cap (e.g. £50k) on each subbie's account. The system withholds automatically on every invoice. Release at milestones from the Retention dashboard.

Compliance is enforced

Require CSCS cards, insurance, RAMS, or any other certification before a subbie can be paid. The system blocks invoices if documents are missing or expired - no last-minute rushing.

Staged claims against orders

Subbie submits a quote upfront ("£50k plastering package"), gets it approved, then claims against it as work progresses. Each claim approved separately, retention deducted, remaining balance always visible.

Not sure which to use?

Five questions that get you to the right billing model in seconds.

Is the worker on your payroll?If no → Sub-Contractors
Do you need to withhold retention?→ Sub-Contractors
Do you need to enforce insurance or CSCS?→ Sub-Contractors
Will the client want to see hours vs materials?→ Specific Works
Is the scope fixed and the price agreed?→ Priced Works

One platform, three billing models, zero spreadsheets.

See it running with your own subbies, your own rates, your own retention rules - 30 minutes is plenty.