No, not as a separate calculation.

The function just applies the tax rate that you input at the beginning, so this tax rate is used as the total tax pressure and is applied uniformly over 45 years, so it is a hypithetical average.

If you have figures for the impact of indirect taxes then you can add that to the total tax pressure.

For example, a tax on nuclear, gas or coal energy will drive up the costs of all production, products, services and transports that uses the energy grid. Such a tax should be added to the total tax pressure.

However, it would be complicated to simulate how that tax impacts every day life with cost increases throughout the whole infrastructure.

If you can only save 20% of your income (or less) after tax then this is clearly a situation impacted by inflation, but since living expenses differ from region to region and quality of life is subjective (options differ in cost), it might be impossible to calculate the full impact of inflation. If we earn income in jurisdiction A and then settle in jurisdiction B, this will also matter.