Fulton County will save more than $40 million by refinancing utility debt.

Fulton has issued $223.2 million in water/sewer revenue bonds at a true interest cost of 3.63 percent, the county announced Wednesday. By refinancing the debt, the county will save about 40.4 million.

Credit rating agencies gave Fulton good ratings as it refinanced the debt. Moody’s (AA3), Standard & Poor’s (AA) and Fitch Ratings (AA) all cited the county’s stable financial outlook.