The High Cost Plan Excise Tax, or “Cadillac Tax,” is one of the key provisions of Obamacare, both from the perspective of raising revenue and health policy. Beginning in 2018, there will be a tax of 40 percent on the amount of employer-provided insurance that exceeds a threshold. The threshold is set at $10,200 for individuals and $27,500 for family coverage in 2018, but is adjusted upward each year based on the Consumer Product Index (CPI). The Cadillac tax has been politically contentious from the outset and is garnering increasing attention, in part because some employers are already exceeding the threshold and are contemplating life with the tax.