Very few developers in the US can add $150k in post-tax cash flow in 12 months from a dead start. Depending on living expenses and tax situation, you need to gr

Very few developers in the US can add $150k in post-tax cash flow in 12 months from a dead start. Depending on living expenses and tax situation, you need to gross $300k to $450k. I speak from experience: doable, but not easy.