An accountant warns that property tax laws in New Zealand have become more complicated with the introduction of the "bright-line test" for residential land. This law taxes any profits made from selling a residential property within two years, unless it was the owner's main family home. The accountant notes several traps for unwary homeowners, including being taxed on properties sold due to unforeseen circumstances like illness or job loss. He advises that property ownership is more complex now and homeowners need to understand factors like what qualifies as a main residence and when the two-year period begins and ends.