By JoAnn Volk and Justin Giovannelli

Health savings accounts (HSAs) provide significant tax advantages designed to encourage people to save money for future health care expenses. HSAs have been around since 2003 and have grown over time. Today, nearly 21 million accounts hold more than $41 billion in assets. Provisions that would encourage still greater use of these tax-preferred accounts feature prominently in most Republican proposals to repeal and replace the Affordable Care Act.

In a new publication for The Commonwealth Fund, JoAnn Volk and Justin Giovannelli examine how HSAs are working under current law and who stands to benefit if the rules governing these accounts are loosened. You can read their findings here.