## Zoho Billing - Product, solutions, integrations, support, and resources Index Access the complete documentation index at: https://www.zoho.com/uk/billing/llms.txt Use this file to discover all available documentation pages before proceeding. # Construction Industry Scheme ### What is CIS The Construction Industry Scheme (CIS) allows subcontractors to make regular contributions towards their national insurance and pay their taxes. Under CIS, contractors working in the construction industry deduct money from subcontractor’s invoices and pass it on to HMRC. This deduction is considered as an advance payment towards the subcontractor’s tax and National Insurance. Learn more about [what’s covered under CIS](https://www.gov.uk/government/publications/construction-industry-scheme-cis-340/construction-industry-scheme-a-guide-for-contractors-and-subcontractors-cis-340) from the UK Government’s website. ### Who Should Register for CIS If you’re a contractor involved in construction business in the UK, it is mandatory that you register for CIS. It is not compulsory for subcontractors to be registered for CIS, however, deductions are taken from your payments at a higher rate if you are not registered. ### Enable CIS in Zoho Billing **Warning:** You cannot disable CIS in your organisation after you create a transaction under CIS. You can disable CIS only after you delete all transactions under CIS. Enabling CIS let’s you deduct money for services covered under CIS in transactions. Setting up CIS in Zoho Billing is easy and can be done in a few clicks. Here’s how: * Navigate to _Settings_ > _Taxes_ > _Construction Industry Scheme_. * Click the toggle next to **Are you registered for CIS with HMRC?** to enable CIS in your organisation. * Enter the necessary details in the fields below. Field Description **CIS Role** * Select **Contractor** if your organisation hires other businesses for construction work. * Select **Subcontractor** if you carry out construction work for a contractor. * Select **Both** if you act as both contractor and subcontractor. **Unique Taxpayer Reference** Enter your Unique Taxpayer Reference Number **National Insurance Number** Enter your National Insurance Number. **CIS Deduction Rate** If you are a subcontractor, select the CIS Deduction Rate from the dropdown menu. This will be used in all the invoices which you send to a contractor. * Click **Save** ### CIS in a Transaction **Prerequisite:** CIS tracking must be enabled for the customer if you want to create transactions under CIS for them. **Note:** CIS is not supported in Retainer Invoices, Expenses and Recurring Expenses. #### CIS in Sales Transaction When you send an invoice to your contractor, you can choose the services which come under CIS. Here’s how: * Create a [new invoice](/billing/help/invoice/#create-invoice). * After filling in the necessary details, check **Covered by CIS?** checkbox if a service comes under CIS. Zoho Billing will automatically calculate the deductions using the CIS Deduction rate which you provided in the [CIS Settings](#enable) for the services you choose. ### CIS Reports You can view a detailed report of all the transactions raised under CIS for both contractors and subcontractors, total amount liable to deduction and deducted amount.