THE mass tax audit on Curtis Island Bechtel workers is coming to an end.
Since the Australian Taxation Office began issuing warnings in September last year almost 5000 people's tax returns have changed.
About half of those were voluntary adjustments.
The other half were forced after the tax office audited individual workers' claims.
>>FEB. 10 Tax firm makes official complaint to ATO
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Work-related expenses were the main point of contention for the tax office which expressed concern some workers had made claims, particularly regarding meals and travel, that weren't valid.
Meanwhile, one Gladstone tax agent has challenged the tax office's views and lodged two applications on behalf of taxpayers appealing the ruling.
Six months later workers are still waiting for a decision.
The Observer contacted Corporate Accountants Pty Ltd for comment on the two submissions lodged with the Administrative Appeals Tribunal in March, however, received no response.
Corporate Accountants senior partner Naomi Faivalu had previously said the matters would go to mediation and then proceed to court.
But the AAT has now confirmed no ruling has been made on the objections which are still before the tribunal.
"We are unable to provide any information about the decision under review," an AAT spokesperson said.
"The application has not yet been finalised and remains before the AAT."