"I am trying to stay positive, but I have never seen it this quiet in 30 years in business," she said.
Ms Innes, who owns Kimbo's Fashions, which specialises in wedding attire and formalwear, said a lack of confidence in the economy and an unwillingness by consumers to spend was killing her business.
Ms Innes recently closed two of her five retail outlets after the rents were increased and she decided not to renew her leases.
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READ NOW"Wages went up on June 30 and some days are so quiet I am not making enough to cover costs," she said.
"My GST bill every quarter is huge and I have three shops left, so it's three times harder to make ends meet."
Ms Innes has welcomed Premier Colin Barnett's announcement that he would drop his opposition to extending the GST to overseas online purchases worth less than $1000 as an act of "goodwill".
Ms Innes said she had dipped into her superannuation to pay GST bills to keep her businesses afloat and said her bank manager was supportive and understanding.
"It is an ongoing stress but I am trying to stay positive," Ms Innes said.
Federal Treasurer Joe Hockey said he was aware that there were the equivalent of three jumbo jets of clothing and footwear arriving in Australia every day - items bought overseas with no GST surcharge or customs duties applied.
He told the Council of Small Business of Australia National Small Business Summit that this was unfair on small business and he supported a level playing field for collecting GST revenue.