If you work under the Construction Industry Scheme (CIS), you likely pay too much tax. Because standard deductions don’t account for your personal allowance or costs like travel, tools, and PPE, HMRC often owes you a refund worth thousands. Use our free CIS tax rebate calculator to get an instant estimate of your refund in under a minute. This is just an estimate, so contact us today to claim your full refund. For CIS Subcontractors, we have special offer – you do not need to pay until you get your refund