There is a long tradition of tax refusal in the US, but doing so requires that you either live below the taxable income level, operate entirely to avoid federal withholdings, or refuse to pay and get your wages garnished. Here is a primer: nwtrcc.org/resist/how-t...
There are a number of ways to practice war tax resistance, so you can choose the method that's right for you. Here is a summary of some of these methods.
