Inflation acts as an indirect tax by transferring wealth to the printers of new money (central banks, government, etc). But if the capital gains tax isn’t indexed to inflation, then doesn’t that mean inflation acts as a direct tax too? In the sense that if inflation increases the nominal value of your wealth, you have to pay a tax on that increase (Capital Gains tax), so the real value of your wealth decreases. Say I’ve got $10, and inflation this year is 100%, meaning the nominal value of my money increases to $20. I have to pay 15% capital gains tax on this $10 increase, $1.5, so after tax I’m left with $18.50. Due to inflation, this $18.50 is only worth $9.25 in the previous year’s dollars, meaning the government has effectively taxed away 7.5% of my wealth. Running the numbers in excel, at 100% inflation and 15% capital gains tax, within four years the government would have taxed away over 25% of national wealth, within nine years over 50%, and within 16 years over 75%. If the capital gains tax was doubled to 30% (Buffet tax, maybe), then at 100% inflation, within 5 years half of national wealth would have been transferred to the state through ‘capital gains’ tax, and within 15 years 90% of national wealth would have been stolen in this manner.
With only 10% inflation, the wealth transfer to the state is much smaller, but still significant. With 15% capital gains tax and 10% inflation, the capital gains tax would transfer 10% of an individual’s real wealth to the state within eight years, and 20% within 16 years. This is an effective wealth tax of over 1% per year. If the capital gains tax were to be doubled to 30%, then at only 10% inflation, an individual would lose 10% of their real wealth to the state within four years, 20% within nine years, and 30% within 13 years - an effective wealth tax of over 2% per year.
America’s historical average inflation rate is apparently around 3.4%. I’ve no idea what the historical average capital gains tax is, but I’ll assume 15% for simplicity’s sake. With 3.4% inflation, and 15% capital gains tax, it takes 22 years for 10% of private sector wealth to be transferred to government. If we assume this capital gains tax existed in 1951, then in the 60 years since then just over 25% of private sector wealth has been transferred into the hands of the state solely by virtue of the Capital Gains tax not adjusting for inflation.
So my question, is this analysis correct? Has the State really stolen 25% of existing national wealth in the past 60 years, due solely to how the capital gains tax doesn’t account for inflation, or am I missing something?