Deep experience is critical when hiring a tax resolution professional. The tax code is extremely complicated, and it gets longer with every year. Look for individuals with relevant experience in all aspects of tax law, from ferreting out fraud to defending taxpayers who have simply made honest mistakes.

Always ask about the expertise and experience of the people who work for the tax resolution firm. Things like longevity of service, background and training can be pivotal, and they could tip the scales in favor of one tax resolution professional over another.