Hooke received income from his positions as Curator of Experiments at the Royal Society and as a professor at Gresham College. These roles provided him with a steady income stream that helped him support his scientific work and living expenses.

His work as one of the City Surveyors after the Great Fire of London provided substantial financial rewards. Surveying land and providing architectural designs significantly increased his income.

Hooke was known to be cautious and meticulous in managing his finances. He kept detailed records of his income and expenditures in his diaries, suggesting a practical and thrifty approach to money management.

Upon his death, Hooke left his estate to his niece, Grace Hooke. His estate included property, investments, and his collection of scientific instruments and books, reflecting his significant accumulated wealth.