Concurrency was part of the HMRC's Business Entity Tests which were so hilariously inaccurate compared to IR35 actual rules its was funny. I guess if you had a

Concurrency was part of the HMRC's Business Entity Tests which were so hilariously inaccurate compared to IR35 actual rules its was funny. I guess if you had a small battle and that won it that battle wasn't with HMRC but instead with the Cabinet Office or another government department / quango...