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How Do We Stop Paying Our Subcontract Roofers Becoming a Two-Day Job Every Month With CIS?

Roofers paying subcontract fixers under CIS juggle invoices, verifications and deduction statements. We build a payment run that assembles it for checking.

Updated 3 min readBy SpiderHunts Technologies

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Quick answer — TL;DR

Paying subcontract roofers under CIS takes days because invoices, day sheets, verification status and deductions sit in different places and are reconciled by hand. We build a monthly run that collects each subcontractor's invoice, checks it against the days and jobs recorded, applies the verification status your records hold, and prepares payments and deduction statements for your bookkeeper to approve.

Month end with a pile of handwritten invoices

Your regular fixers and the extra hands you brought in for the busy spell all invoice at the end of the month. Some send a PDF, some a photo of a handwritten sheet, one sends a text with a total. Each has to be checked against the jobs and days they worked, split into labour and materials, have the right CIS deduction applied, and appear on a deduction statement.

Then the monthly return has to agree with what you paid. Your bookkeeper does it, but it takes two days and a lot of phone calls.

Why it takes so long

The rules themselves are applied by your bookkeeper or accountant. What slows things down is the information arriving in a mess, and nothing tying a subcontractor's invoice to the days they actually spent on your jobs.

  • Invoices arrive in every format, some missing UTRs or dates.
  • Days worked are not recorded against jobs, so invoices cannot be checked.
  • Materials and labour are not always split on the invoice.
  • Verification status is held in a spreadsheet that is not always current.
  • Deduction statements are typed up separately.

What it costs

Your bookkeeper's time, first. Then the risk of paying for days that were not worked, or paying someone twice across two jobs. Errors in deductions or statements take time to put right, and subcontractors who are paid late or wrongly go and work for someone else. We do not give tax advice; we can make sure the people who do have clean information.

Good subcontract roofers talk to each other. A firm known for paying late, or for statements that never match the invoice, finds it harder to get experienced fixers in the busy months, which is exactly when it needs them most.

The subcontractor payment run we build

  1. Each subcontractor has a record with their details, rates and the verification status your bookkeeper has recorded, with the date it was checked.
  2. Gang leads record who was on each job each day, including subcontractors, from their phone.
  3. Subcontractor invoices arrive by email or upload and are read into lines: dates, jobs, labour, materials, total.
  4. Each invoice is checked against the days recorded and the agreed rate. Differences are listed for a person to query with the subcontractor.
  5. Once approved, the deduction is calculated using the status and rules your bookkeeper maintains, and a payment is prepared.
  6. Deduction statements are generated for each subcontractor from the same figures.
  7. A monthly summary is produced for your bookkeeper to check against the return, and approved payments and costs are posted to Xero, Sage or QuickBooks against each job.
StepAutomatedStays with a person
Invoice captureRead into linesAnything unreadable
Check against daysCompared with gang recordsQuerying differences
DeductionCalculated from recorded statusKeeping status current
StatementsGeneratedFinal check
Monthly returnSummary preparedFiling the return

Your bookkeeper or accountant stays responsible for CIS. We build the plumbing so their time goes on checking rather than typing.

What month end looks like after

Invoices are checked as they arrive, not all at once. Queries are raised while the subcontractor still remembers the job. Statements go out with payments. And labour cost from subcontractors lands on each job, which feeds your job costing.

Is subcontractor pay a monthly headache?

  • Subcontractor invoices arrive in every format.
  • You cannot easily check invoiced days against days worked.
  • Deduction statements are typed up by hand.
  • Month end takes your bookkeeper days.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

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Does it verify subcontractors with HMRC?

Verification can be done through your payroll or accounts software that supports it. We record the result and the date so it is visible where invoices are checked.

Will it file our monthly return?

It prepares the figures. Filing stays with your bookkeeper or accountant, usually through software you already use.

Can subcontractors submit invoices through a link?

Yes. A simple form helps them include the details you need, though emailed invoices still work.

What if a subcontractor disputes a deduction?

The invoice, days recorded and statement are held together, so your bookkeeper can see exactly how it was worked out.

Is our data kept secure?

Personal and tax details are stored with restricted access and only shown to people who need them.

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