The cost of working with a Google ad agency and running paid ads varies depending on a number of factors including the amount of ad spend. At our agency for ad spends under $2500 we charge a flat rate of $500 plus GST. For spends over $2500 we charge 20% of the total ad spend (additional). Please note the pricing structure can vary between different adwords agencies so it’s always best to get a quote tailored to your business.