> You forgot the additional 13% in employers NI. Only the part of that that would actually be passed through to you as salary in the absence of the tax could

> You forgot the additional 13% in employers NI. Only the part of that that would actually be passed through to you as salary in the absence of the tax could reasonably be considered part of your tax burden. Hard to say how much that is without any information about your field or employer, but I guarantee it's less than 100%.