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Typically most commissions in New Jersey are between 5-6 % of sales price, depending on the discussion with seller, motivation to sell quickly or the property itself. Each real estate company follows their policy and threshold, but it is negotiable according to the state law.

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Let’s say they decide seller’s agent will get 3 % and the buyer’s agent will receive 2.8 %. This means if house sells at exact $400,000, seller’s agent will get $12,000 while the buyer’s agent will get $11,200. 

Link: https://patch.com/new-jersey/west-windsor/classifieds/announcements/62358/how-much-real-estate-agent-will-cost-in-new-jersey-average-analysis