The winners of the men's and women's singles titles will each earn 1.5 million euros, up 250 000 euros from last year.
Organisers added that the move was part of plans to boost the total prize money by a further 10 million euros to 32 million euros by 2016.
In comparison, US Open prize money will reach $33.6 million this year and rise to $50 million by 2017, while Wimbledon prize money was more than 16 million pounds ($24.61 million) in 2012.
This year's Australian Open prize money was A$30 million ($31.31 million).