How Cloud Bookkeeping Simplifies CIS Deductions
- Sep 28
- 2 min read
If you work in the construction industry, the Construction Industry Scheme (CIS) will be all too familiar.
For contractors, it means deducting tax from subcontractor payments and reporting to HMRC every month.
For subcontractors, it means keeping track of deductions and ensuring records are accurate for refunds and tax returns.
The problem? CIS admin is time‑consuming and complex when handled manually. Mistakes are easy to make, and HMRC penalties can be costly. But cloud bookkeeping software is changing the game.
Why CIS Deductions Are Challenging
Contractors must deduct 20% (or 30% if not verified) from subcontractor invoices unless they are gross status.
Monthly CIS returns must be filed with HMRC by the 19th.
Records of deductions must be accurate and shared with subcontractors.
Manual processes often lead to:
Errors in calculations.
Late or missing CIS returns.
Frustrated subcontractors waiting on correct paperwork.
How Cloud Bookkeeping Helps with CIS
Cloud platforms such as Xero are now widely used across the construction sector. Here’s how they simplify CIS:
Automated CIS Calculations
Once subcontractors are verified, the software automatically applies the correct CIS rate. No more guesswork or manual maths.
Submit CIS Returns Directly to HMRC
With a few clicks, monthly CIS returns can be filed from within the software. This reduces duplication and ensures deadlines aren’t missed.
Real‑Time Record Keeping
Payments, invoices, and deductions are logged instantly. Contractors always know their liability, and subcontractors get clear, timely statements.
Digital Documentation
Receipts and invoices can be uploaded through apps like Briefcase or Hubdoc, creating a secure, searchable audit trail.
Easy Reporting
Need to see year‑to‑date CIS deductions or outstanding liabilities? Cloud software produces reports in seconds, saving hours of admin.
Benefits for Contractors and Subcontractors
Contractors: Save hours of manual work, reduce risk of penalties, and improve accuracy.
Subcontractors: Receive clear CIS deduction statements, making refunds and self‑assessment simpler.
Both: Access records anytime, anywhere, with full visibility.
Beyond CIS — Other Advantages of Cloud Bookkeeping
Cloud bookkeeping isn’t just about CIS. Benefits include:
Bank feeds: Automatic transaction imports for faster reconciliation.
Cash flow dashboards: Real‑time insight into finances.
App integrations: Connect with tools like GoCardless for payment collection.
Compliance: Built‑in support for Making Tax Digital VAT requirements.
For construction businesses, this means less paperwork and more time focusing on projects.
FAQs
Can I file CIS returns through Xero or QuickBooks?
Yes, both platforms allow direct submission of CIS returns to HMRC.
Do I still need to verify subcontractors?
Yes, subcontractor verification remains essential, but cloud software records and stores verification details.
How much time does cloud bookkeeping save on CIS?
Most contractors cut CIS admin from several hours a month to just minutes.
Can subcontractors benefit from cloud bookkeeping?
Absolutely — they gain accurate deduction statements and easier record‑keeping for tax returns.
Do I need a bookkeeper if I use cloud software?
Yes. While the software helps, a bookkeeper ensures compliance, setup, and ongoing accuracy.





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