HM Revenue and Customs (HMRC) has issued a warning urging workers to scrutinize their payslips for signs of tax avoidance schemes that could leave them facing substantial unexpected tax bills. The alert highlights that many individuals may be unknowingly drawn into such arrangements, particularly contractors and agency staff paid through umbrella companies.
Common Red Flags to Watch For
HMRC points to several key indicators of potential tax avoidance. One major red flag is when the net pay deposited into a worker's bank account does not match the figure shown on their payslip. Another is when part of the pay is labeled as something other than wages, such as “untaxed payments” described as loans or advances. According to HMRC, the net pay on the payslip should always equal the amount received in the bank account; any discrepancy should be treated as an immediate warning sign.
The tax authority notes that these schemes are often marketed with promises of higher take-home pay, but the consequences can be severe. Workers may later discover they owe unpaid tax, plus interest and potential penalties. HMRC emphasizes that spotting these signs early can prevent a significant financial shock down the line.
Workers Share Their Experiences
Several workers have come forward with stories of being caught in such arrangements. Chantelle, a nurse from Watford, became suspicious when payments from a new agency role arrived in her account with no tax deducted. She contacted HMRC directly for assistance after noticing the discrepancy. Another nurse, Tanya, a single mother, said she was persuaded to sign up for an arrangement that later resulted in a large, unexpected tax demand. Duncan, an IT project manager, used an umbrella company to simplify payroll but later realized he had been placed into an avoidance scheme after failing to read the fine print.
Individual Responsibility Under UK Law
HMRC has stressed that under UK law, individuals are ultimately responsible for paying the correct amount of tax, even if they relied on an employer or umbrella company that provided bad advice. This means anyone found to have used an avoidance scheme will still be required to pay the tax due, along with interest and any fees already paid to the scheme promoter. However, HMRC officials say they are not seeking to penalize those who come forward voluntarily. Workers who suspect they may be involved are urged to contact HMRC promptly, with support available to help resolve the issue, including payment plans to spread the cost.
How to Report a Scheme
Workers who believe they have been mis-sold a scheme or know of one operating can report it anonymously to HMRC using the code “TAC” on its online form. Reports can also be made by phone at 0800 788 887, or from overseas at +44 (0)203 0800 871. HMRC has also published guidance for contractors and agency staff, including a risk checker tool and information about tactics used by promoters. Anyone concerned about their situation is advised to check payslips carefully and seek guidance directly from HMRC.



