The figure is up from last year when 42% were anxious about money.
Cost of living is a factor as 59% struggle with rising food prices, 52% with energy bills, while more than a third (38%) say growing transport costs are an issue.
Concerns about payday loans have shot up by 200% over the last 12 months, as 9% are worried about high interest debts.
Shaz Sulaman, joint managing director of Baines and Ernst, said: “We were interested to explore debt levels in the UK and revisit our previous infographic to see whether statistics relating to debts had improved or declined over the past 12 months.
“What we found, is that while the economy is certainly moving in the right direction, people are still struggling to keep up with debt repayments as the cost of living continues to rise.”