There are two holders for this record:
The person with the most fingers and toes is Pranamya Menaria (India; born 10 August 2005) who has 25 in total (12 fingers and 13 toes).This is as a result of the condition Polydactyly and Syndactyly.
The person with the most fingers and toes is Devendra Harne (India; born 9 January 1995) who has 25 in total (12 fingers and 13 toes) as a result of the condition polydactylism.