$15 an hour, at 40 hours a week, at 50 work weeks a year, is $30,000, gross. Under Sanders’s tax plan your base income tax burden would be 12%, or $3,600, the same as it is now. But for his Medicare for All plan (no deductible, no co-pay, no bills for Doctor, hospital, ER, or ambulance, and a maximum on annual put-of-pocket costs for prescription drugs) you would also have to pay a 4% premium on earnings over $29,000. So that person who could be making $15 an hour if they raised the minimum wage would have an additional tax burden of $40 ($1,000*4%) for a total tax burden of $3640, compared with the $3600 they would owe if they made $15 an hour now.