GST accounted for the largest portion of the internal compliance cost (mean $16,785, median $16,322), followed by income tax (mean $7453, median $7355).
Business size category results confirmed that gross tax compliance costs were regressive. The average amount spent on gross tax compliance costs in entities with annual turnover of less than $1 million was $48 per $1000 of turnover and in entities with an annual turnover of more than $1 million to $3 million was $15 per $1000 of turnover.
For entities with an annual turnover of $3 million to $6 million, it was $8.07 per $1000 of turnover.
Next came the internal time spent on tax compliance activities.
More than 50 per cent of the businesses agreed that keeping records for tax compliance improved the business record-keeping system and helped to maintain more accurate records but more than 88 per cent of businesses were unsure or unaware of small business tax concessions.
"The study calls for fresh thinking on simplification and the introduction of several initiatives aimed at making the tax compliance easier for small businesses," Gupta and Sawyer said.