Inland Revenue has begun publishing performance benchmarks it says will help businesses identify potential trouble spots and opportunities for improvement.
The benchmarks are available on the department's website and cover 16 industries, including cafes, restaurants, supermarkets, grocery stores and fruit and vegetable retailers.
Benchmarks on the site include gross margin, taxable profit ratio, return on total assets and return on equity.
IRD said a low gross margin could indicate that a business was not charging enough for its products and services, or was paying too much for its supplies and stock.
The benchmarks were calculated by Statistics NZ using Inland Revenue data taken from information reported on tax returns and financial statements of small-to-medium firms with annual turnovers of between $60,000 and $10 million, the department said.