Carla Efstratiou with a selection of items for sale from her online fashion business.

Fashion devotee Carla Efstratiou, 23, spends two hours a week shopping online from overseas stores to fill her wardrobe and to buy jewellery and accessories for her brand, Stylehub.

These hours only increase at Christmas as she tracks down unique and cheap presents from a wider range of options than are available in Australia. ''You have to price check things to find the best option but the GST could change all that and take away the fun,'' Ms Efstratiou said.

''I look at eBay, then big department stores, then smaller boutiques and compare prices and ranges .''

But this could be the last tax-free Christmas for online shoppers such as Ms Efstratiou, with state treasurers meeting federal Treasurer Joe Hockey in Canberra on Wednesday to discuss lowering the GST threshold on imported goods worth less than $1000.

The decision has been pushed back until March. A lowering or scrapping of the threshold is being urged by Australian retailers, who say it gives foreign retailers an unfair advantage.

Consumer groups are concerned moves to impose the online tax are a ''knee-jerk reaction'' from the federal government, saying it will unfairly hit consumers with costs and delays.

Choice campaigns director Matt Levey, said Australian retailers should be improving their poor online customer service and long delivery times, rather than focusing on lobbying the government for a lower threshold for international retailers.

''Customers are already voting with their wallets due to the range of products they want,'' Mr Levey said.

Choice estimates the cost of a $20 parcel would rise to more than $35 under the proposed tax, with the addition of delays faced by consumers required to pay for collection, based on what Britain's Royal Mail charges as a ''collection fee''.

This is not the first time the lower online threshold has been debated. The 2011 Productivity Commission report found that lowering the online shopping threshold to $20 would raise in excess of $550 million in tax revenues. But there are questions around the high costs of administering such a change.

For now, Christmas shoppers can click in peace.

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