Von Miller is literally losing cash by the minute on "Dancing with the Stars" ... 'cause the NFL superstar's dance partner is FINING HIM $100 for every minute he's late to rehearsal.
Our 'DWTS' sources tell TMZ Sports Von's partner -- Witney Carson -- came up with the system as a way to ensure he was on time for practice.
The tally so far ... $500 from when Von was 5 minutes late to Thursday's rehearsal. The money goes straight into Witney's pockets ... so ya gotta imagine she wasn't too upset.
FYI -- Miller's slated to make around $14 million next season, so he can afford to lose a few Benjamins.