Construction Industry Scheme

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Information about understanding and using CIS Online
How the CIS Online service can save you time and effort when verifying subcontractors and sending in your monthly returns
Information to help you get to grips with CIS
Register to start using CIS Online or use the service now to verify contractors or file monthly returns if already registered


Construction Industry Scheme (CIS) Helpline

Help and advice for subcontractors and contractors within the Construction Industry Scheme. You can also order CIS forms and leaflets from the helpline.
Opening hours
8.00 am to 8.00 pm, Monday to Friday
8.00 am to 4.00 pm Saturday
Closed Sundays, Christmas Day, Boxing Day and New Year’s Day
0300 200 3210
For customers who are deaf or hearing or speech impaired:
0300 200 3219 (Textphone)
A textphone allows you to type what you want to say rather than speaking into a mouthpiece. You can use a textphone instead of a voice telephone if you are deaf or have problems with your speech. It is not possible to speak to an adviser by phoning a textphone number.
If you're calling from abroad please telephone:
+44 161 930 8706
When you get in touch, please tell us your National Insurance number and your Unique Taxpayer Reference.