CIS Deductions Explained: A Complete Guide for Contractors
How CIS deductions actually work, what gets deducted and what doesn't, and how to keep the paperwork straight without a spreadsheet headache.
Read articleCIS Guides
Understand CIS deductions, contractor/subcontractor workflows, and export-ready records for accounting.
Guides, tools and templates
CIS deduction tracking
How the 20%, 30% and gross rates work, and why materials sit outside the deduction.
CIS deduction calculator
Work out the deduction on a subcontractor invoice with materials excluded correctly.
CIS rebate calculator
Estimate the refund owed back from a year of deductions, expenses and tax bands.
Making Tax Digital for trades
Why CIS subcontractors report gross invoice values in a quarterly update, not the net that reached the bank.
Related articles
CIS Gross Payment Status: Should You Apply, and How?
Gross payment status means contractors pay you in full with no CIS deduction. Here is what qualifies, how to apply, and whether it is worth it for your trade business.
Read articleHow to Register for CIS as a Subcontractor (2026)
Step by step through registering for the Construction Industry Scheme as a subcontractor: what you need, how long it takes, and what changes afterwards.
Read article