That's not the top rate. The top rate is a bit over 60 % of gross amount. 43 % is the proportion of tax revenue paid by the top decile. (10 % of taxpayers pays

That's not the top rate. The top rate is a bit over 60 % of gross amount. 43 % is the proportion of tax revenue paid by the top decile. (10 % of taxpayers pays 43 % of revenue.)