Lisa Marie Presley was spending more than US$92,000 a month before death

Lisa Marie Presley was spending more than US$92,000 a month before her death and may have been worth only US$4 million when she passed away.

Elvis’ only child, who died on Thursday aged 54 from a double heart attack, also owed the taxman US$1 million.

Legal documents obtained by The Blast in November, which have resurfaced since her passing, showed her US$92,000-plus monthly spend.

They also showed her monthly expenses included US$23,500 in rent and US$1,078 for Maserati payments.

Papers also showed Lisa Marie had US$95,266 in cash assets, US$714,775 in stocks and bonds, and had a US$1 million debt to the IRS.