Probate records show that the Weatherfield veteran's total estate was worth £987,900 and stood at £938,198 after liabilities were paid, according to The Sun.
Driver, who had no children, is believed to have left her Cheshire home, car and most of her personal possessions to close friends Charles Orr and Brian Lynch.
Her cousin Rosemary Hirst and a handful of other friends also reportedly benefited from the will.
Driver passed away at the age of 91 in October last year following a period of ill health. Family, friends and Coronation Street colleagues past and present gathered for her funeral in Manchester later that month.
Coronation Street bosses are planning to give Driver's character Betty Williams "a brilliant send-off" later this year.
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Browse through a gallery of Betty Driver's life in pictures below: