Unless you earn a six figure sum you'll pay nowhere near 40% in income tax.
Sorry but it annoys me when people think because the top level of income tax they pay is 40% that they pay 40% on what they earn when they don't pay anywhere near that once you take the fact you only pay the higher rate on amounts above the limit and the near £10k tax free allowance into account.
For example, someone who earns £40k a year (a higher rate tax payer) takes home over £30k a year (
source), including NI deductions, which means in reality they are being taxed at around 25%.
I personally earn around the national average and pay total contributions to the government is less than 20% including NI.
Hence your £61 is an overestimation.