Here are examples she presents in her plan.
Examples
Married couple with household net worth of $100,000—the median level in the United States
Pays zero tax because they are below the $50 million threshold
Married couple with a primary and vacation residence and substantial retirement savings for a household net worth of $20 million
Pays zero tax because they are below the $50 million threshold
Extremely successful small business owner of a $30 million business as well as additional assets for a household net worth of $40 million
Pays zero tax because they are below the $50 million threshold
Hedge fund manager with a net worth of $500 million
Pays a 2% tax on the $450 million in net worth above the $50 million threshold, producing a total annual liability of $9 million
Heir with a net worth of $20 billion
Pays a 2% tax on the $950 million between $50 million and $1 billion, and a 3% tax on the remaining $19 billion, for a total annual liability of $589 million.
https://elizabethwarren.com/ultra-millionaire-tax/