Sitewage — AI-Powered CIS Payroll for UK Construction
Now in early access — built for UK construction

Run CIS payroll
in minutes — not days.

AI-powered construction payroll software that turns timesheets into subcontractor payments, CIS deductions, and P&D statements — automatically.

Book demo → Join early access
Built specifically for UK construction companies & subcontractor-heavy businesses.
app.sitewage.co.uk / payroll / week-45
Week 45 payroll run
Period ending Fri 7 Nov · 42 subcontractors · 3 sites
AI processed in 47s
Gross pay
£64,820
↑ 12% vs wk 44
CIS deducted
£12,964
20% standard rate
Net to pay
£51,856
42 payments queued
P&D statements
42 / 42
Ready to send
01
Timesheets
8 sources · ingested
02
AI extraction
Names · hours · rates
03
Review & approve
In progress
04
Payment batch
Faster Payments
05
P&D statements
Auto-send
Subcontractor
Site
Hours
CIS
Net pay
JM
James M.
Battersea Hts
42.5
20%
£1,360.00
✓ AI
RP
Ravi P.
Croydon Plaza
38.0
0%
£1,710.00
✓ AI
AK
Ade K.
Battersea Hts
45.0
20%
£1,440.00
✓ AI
SM
Stefan M.
Reading Wharf
40.0
20%
£1,280.00
✓ AI
47 seconds to process
Zero manual entry
Trusted by construction businesses across the UK
The reality of Friday payroll

Construction payroll
shouldn't look like this.

If your week ends with WhatsApp screenshots, an Excel sheet from 2014, and a calculator open on your phone — you're not alone. You're just doing it the hard way.

WhatsApp screenshots
Hours come in as photos, voice notes, and group chats. Someone has to type them all out.
The Excel master sheet
Three open tabs, one broken formula, and a copy of last week's tab renamed.
Manual CIS maths
20% deduction here, gross status there, nothing reconciles when HMRC asks.
Chasing UTRs at 5pm
"Send me your UTR mate" — every Friday, every new joiner, forever.
Late P&D statements
Sent days late, sometimes never. Subbies frustrated, compliance shaky.
Copy-paste banking
42 sort codes, 42 account numbers, one typo and a subbie's payment goes missing.
Friday admin black hole
Six hours of payroll instead of running the business. Every. Single. Week.
No one really knows the totals
Until someone exports the spreadsheet, sorts it, and sends a screenshot back.
The Sitewage way

From timesheet to paid subcontractors — automatically.

Upload PDFs, photos, WhatsApp screenshots or Excel timesheets. Sitewage's AI extracts hours, allocates subcontractors to the right sites, calculates CIS deductions, prepares your payment batch, and issues P&D statements — all in one flow.

WhatsApp.jpg
Foreman group · 14:32
"Ade 9hrs Battersea" "Stefan in 8 today" "Ravi sick — 0"
week-45.xlsx
42 rows · 3 sites
Croydon · 11 subbies Reading · 14 subbies Battersea · 17 subbies
signed-sheet.pdf
Site foreman · scanned
Mon-Fri · handwritten Reading Wharf project

Sitewage AI

Reads, normalises, allocates

OCR Name match Site link CIS rate Verify
Payroll prepared
Lines42
Gross£64,820
CIS£12,964
Payment batch
Faster Payments42
Net total£51,856
CSV ready✓
P&D statements
Generated42
Sent via emailAuto
HMRC ready✓
Core platform

Everything CIS payroll needs.
Nothing it doesn't.

Six tightly integrated modules that replace your timesheet inbox, your Excel sheet, your CIS calculator, and your bank's bulk upload screen.

AI timesheet scanning

Upload messy timesheets — PDFs, photos, WhatsApp screenshots, Excel — and Sitewage populates payroll automatically.

→ ade-mon.jpg → matched

Automatic CIS calculations

Apply 0%, 20% or 30% deductions automatically based on each subcontractor's verification status with HMRC.

CIS_RATE = verify(UTR)

Instant P&D statements

Payment & Deduction statements are generated and sent to subcontractors automatically the moment payroll runs.

42 statements delivered

Subcontractor onboarding

Collect Right to Work, UTR, bank details and CIS information in a single guided workflow — they fill it in, you stop chasing.

RTW · UTR · IBAN · CIS ✓

Bulk payment preparation

Approve payroll and prepare a Faster Payments or BACS batch in seconds. Export CSV for any UK business bank.

42 payments · £51,856 queued

AI payroll assistant

Ask anything in plain English. "How much did we pay John this month?" "Show total CIS deductions for April."

› ask sitewage _
How it works

Four steps. Friday solved.

From the moment timesheets land to the moment your subbies see "paid" — in under 10 minutes.

i.

Upload timesheets

Drop in PDFs, photos, screenshots or Excel. Forward emails directly. No formatting required.

ii.

AI processes payroll

Sitewage extracts names, hours, rates and sites — then applies CIS deductions automatically.

iii.

Review & approve

One clean screen. Spot-check anything flagged, approve in a click. Audit trail built in.

iv.

Pay & send P&Ds

Push payment batch to your bank. P&D statements sent to every subbie automatically.

Who it's for

Built for UK
construction companies.

If your week revolves around paying subcontractors — and CIS shapes everything you do — Sitewage was designed for you.

Main contractors
Labour agencies
Roofing companies
Groundworks
Electrical contractors
Plumbing companies
Scaffolders
Payroll bureaus
80%
Less admin time on Friday payroll runs
Avg processing time~5 min
Manual entry eliminated94%
P&Ds sent on time100%
CIS reconciliation errors↓ 0
Outcomes

Reduce payroll admin by up to 80%.

Less manual data entry
Stop typing what AI can read.
Fewer payroll mistakes
Calculations checked, anomalies flagged.
Faster Friday payroll
Hours back. Every single week.
Cleaner CIS records
Reconciles itself, ready for HMRC.
Subcontractors paid on time
Happy subbies, fewer phone calls.
P&D statements sent automatically
No more "did you send mine?" texts.
AI assistant

Ask payroll anything.

Skip the spreadsheet pivot. Ask Sitewage in plain English and get an answer instantly — across every subbie, site, and CIS period you've ever run.

How much did we pay electricians this month?
Which subcontractors are unpaid?
Show total CIS deductions for April.
Which site had the highest labour cost last week?
Sitewage AI
Connected to your payroll
Online
Show total CIS deductions for April.
In April, you deducted £41,287.40 in CIS across 4 weekly runs and 47 subcontractors.
Wk 14£9,820.00
Wk 15£10,156.40
Wk 16£10,672.00
Wk 17£10,639.00
Total£41,287.40
Which subbies still unpaid?
Ask anything about your payroll…
Get started

Stop running payroll
through WhatsApp & Excel.

Join early access and see how modern CIS payroll should work. Demos take 20 minutes — most teams are running their first payroll the same week.

Book demo → Join early access
No credit card UK-based support HMRC CIS-compliant