Even though proponents see billions in savings under tort reform, some say those savings are just a drop in the bucket. The CBO concluded in 2004 that malpractice costs make up less than 2 percent of all health care spending and reforms that reduced malpractice costs 25 to 30 percent would shave off only 0.4 to 0.5 percent of total spending. Additionally, the CBO said that reforms wouldn't curb rising premiums, which had more to do with rising costs.