Health Minister Robin Swann has said he would consider supporting linking the high street voucher scheme to people being fully vaccinated.
The initiative was announced last year to support retailers hit by Covid-19.
Adults could receive £100 each to spend in town and city centres, with £145m of funding ring-fenced for its rollout.
The health minister said he would be prepared to raise the matter with the Northern Ireland Executive.
“I’ll have the discussion, will raise it at the executive committee certainly, in regards to that incentive for people coming forward to get vaccinated.”
More as this story develops.