CIS Year-End Procedures: Complete Guide for Construction Businesses

CIS Year End Procedures

As your construction accountant, I’ll walk you through the essential year-end procedures for CIS to ensure compliance and maximise tax efficiency.

Year-End Timeline

Key Dates

  • 5 April: Tax year end
  • 19 April: Final monthly return
  • 31 January: Self-assessment deadline
  • Company year-end varies

Critical Tasks

  • Final returns submission
  • Records reconciliation
  • Statement verification
  • Payment reconciliation
  • Systems review

Year-End Checklist

Documentation Review

  • CIS statements
  • Payment records
  • Verification details
  • Monthly returns
  • Dispute records

Financial Reconciliation

  • Payment totals
  • Deduction calculations
  • Material costs
  • Outstanding amounts
  • Refund claims

Compliance Requirements

Contractor Obligations

  • Complete returns
  • Issue statements
  • Reconcile payments
  • Update records
  • Review systems

Subcontractor Needs

  • Collect statements
  • Calculate deductions
  • Prepare tax returns
  • Plan refunds
  • Review status

Best Practices

Preparation

  • Early planning
  • Regular updates
  • System checks
  • Staff training
  • Professional advice

Implementation

  • Systematic approach
  • Clear timeline
  • Regular reviews
  • Documentation
  • Quality checks

Common Year-End Issues

Record Problems

  • Missing statements
  • Incomplete records
  • Calculation errors
  • System failures
  • Lost documents

Timing Issues

  • Late submissions
  • Delayed reconciliation
  • Missing deadlines
  • Processing delays
  • System updates

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