"Retailers typically see margins begin to recover five or more years after Amazon launches Prime," they wrote.
Citi predicts Amazon will take 8 per cent market share over five years and reach 11 per cent in a decade, largely at the expense of smaller retailers, regional electronics retail networks, and general retailers which sell electronics such as department and discount stores.
Combined, these groups currently hold 58 per cent of the market, meaning market share for Harvey Norman, JB Hi-Fi and The Good Guys will remain broadly stable.
After years of speculation, Amazon last month broke its silence, officially confirming it was heading Down Under, prompting a pledge by Gerry Harvey to "match or beat" its prices.
A report by Macquarie estimated that by 2025 Amazon could take one quarter of online retail sales - which would at that point account for 12.5 per cent of total retail sales - equating to revenue of $14.5 billion.
Globally Amazon has annual sales of more than $133 billion ($US100 billion), and in February reported a 22 per cent rise in revenue to $58.2 billion ($US43.7 billion) for the fourth quarter.