The secret is to tax all securities transactions at time of sale. Get rid of income and capital gains taxes. The tax wouldn’t have to be large, due to the sheer volume of trades per day. The overwhelming number of trades occur in the public market and are already tracked. The buyer pays as part of the per share price. The financial firm collects the tax and forwards it to the treasury. No more non-profits, no more use of the tax code to threaten speech, no more individual income tax filing, no more special carve outs for some, but not all.