Political donors are being promised special access to members of state cabinet if they purchase "premium" $950 tickets to a gala Liberal Party fundraising lunch next month featuring NSW Premier Gladys Berejiklian.

The ticket price is set just below the $1000 threshold that would require individual donors' names to be publicly disclosed under NSW electoral laws.

According to an invitation from NSW Liberal state director Chris Stone, a premium ticket secures a donor "pre-lunch drinks with the ministerial team".

Potential attendees are also invited to email the NSW Liberals for more information about "premium pricing options".