Frequently asked questions

How do I sign up for the CIS Online service?
What does the CIS Online service let me do?
Why should I use the CIS Online services?
Who can use the CIS Online service?
What details do I need to sign up for the CIS Online service?
How do I access the CIS Online service?
How do I activate my CIS Online service?
Do I need any software to be able to send CIS Returns and Verification requests online?
I'm having problems using the free CIS Online software.
Do I have to stay connected to the Internet when I'm completing my forms and returns?
How do I register as an Agent for CIS contractors?
I'm registered as a Self Assessment or Corporation Tax Agent. Do I need to register separately to be a CIS Service Agent?
How do I know my Monthly Return or Verification Request has been received?
I am having problems using commercial software. What do I do?
As an Agent, do I need to obtain a declaration and keep a copy of my CIS client's Monthly Return before I file it online?
What do I need to do if I have submitted a return using HMRC's 'Online Return and Forms – CIS' for the wrong month and year?
Where can I find the verifications results?
How do I deal with a verification result which states 'Not found' as the verification status for a subcontractor?