Nectar will next month conduct an email survey among 200,000 points collectors to canvas views on the type of charity it should sign up.
It wants to recruit a charity from one of six sectors: children's, senior citizens, animals, medical, community or environmental.
The initiative will break new ground among loyalty schemes by including donation of points during specified promotional periods.
Activity is likely to be backed by a significant marketing spend and will be bolstered by the support of the programme's collection partners, which include Sainsbury's, Debenhams and BP.
Nectar's owner, Loyalty Management UK (LMUK), which is run by Air Miles founder Keith Mills, expects to make a decision on its preferred partner during the spring and will launch the tie-up in time for its first anniversary in October.
LMUK marketing director Richard Campbell said he hoped the charity tie-up would be a long-term agreement helping consumers 'give something back' from their membership of Nectar.
Nectar is now the UK's biggest loyalty scheme, with more than 11m active collectors. LMUK this week confirmed that Vodafone, First Quench and Adams Childrenswear are to join the scheme. It anticipates that the addition of these brands will add 3m collectors.
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