Money — Field report TQL-MON-189
Software, a Preparer, or a CPA: Where Each One Quietly Stops Being Enough
The usual framing puts income on the dividing line, and income turns out to be a poor predictor of which of the three you need.

Picture the annual decision most households make in about four minutes: software again this year, or finally call somebody. The usual framing puts income on the dividing line, with software for simple returns and professionals for complicated ones, and income turns out to be a poor predictor of anything. What actually decides is whether your situation contains a judgment call, and judgment calls arrive attached to events rather than to earnings, which is why a household earning a modest amount can need a professional and a household earning several times that may not.
Where Software Is Genuinely the Right Answer
Wages, the standard deduction, some interest income, a mortgage, a couple of retirement accounts and perhaps a state return. Software handles all of that accurately and quickly, and paying somebody to do it means paying for data entry you could finish in an hour. It is equally fine for a modest amount of self employment income where the expenses are simple and the records are decent, because the forms have never been the difficult part of a return like that.
The Events That Make Software Insufficient
What software cannot do is tell you about the option you did not know existed, since it answers the questions it asks and nothing else. If the right move for your situation was something that had to happen before December, no program is going to raise it in March. Each of the events below introduces a decision rather than a data entry, and getting one wrong is expensive in a way that a typo is not.
Selling a property, particularly a rental or a home that was rented for part of the time you owned it, because the gain calculation involves basis, improvements and depreciation that must be accounted for whether or not it was ever claimed. Equity compensation, where options and restricted units carry timing choices with large consequences and reporting that is routinely mishandled. An inheritance, a trust or an estate. Income in more than one state, or a move partway through the year, since allocation between states is where returns quietly go wrong. Starting a business or hiring anyone. And a notice arriving in the mail, which is a specific skill to answer.
What a Paid Preparer Adds, and What to Check
A paid preparer sits between the two extremes and covers a great deal of ground well: rental properties, several income sources, a small business with ordinary expenses, the common credits. Credentials vary enormously across that population, so they are worth checking rather than assuming. Anyone paid to prepare a federal return needs a preparer tax identification number, and beyond that an enrolled agent is credentialed specifically in taxation and can represent taxpayers, a certified public accountant is licensed by a state board, and an attorney is a third category again.
Somebody holding none of those may still be experienced, and will have limited ability to act for you if a return is questioned later, which is the part that matters. A public directory of preparers holding recognized credentials, along with a plain explanation of what each designation permits, is published by the Internal Revenue Service, so verifying takes minutes. Two questions finish the job: what is your experience with situations like mine specifically, and are you reachable in July, which filters out seasonal operations that are fine for a simple return and unhelpful when a notice arrives in September.
What a CPA or Enrolled Agent Is Actually For
Not the return, which is merely the deliverable. The value is in the conversation that happens before it. Somebody working with you through the year tells you what to do in October so that April looks different: retirement contributions, the timing of an equipment purchase, whether a conversion makes sense in a low income year, how to set an owner's compensation, what a planned property sale will cost. The rough test is whether your situation contains decisions with a timing component, and if it does you are buying planning while the return arrives free with it.
Switching, and the Documents That Have to Travel
Whichever direction you move, take three years of returns with you, plus the depreciation schedules for any business or rental property and the basis records for anything you own that will eventually be sold, because those schedules are what a new professional needs most and what is hardest to reconstruct from nothing. Moving from software to a person means exporting complete returns rather than summaries, and moving between professionals means asking for the full working file, which most will hand over without difficulty.
Most households pass through all three of these arrangements over a working life, and the switching point is almost always an event rather than a birthday or a salary threshold: a house, a business, a state line, an inheritance. Which means the useful question is not whether your return has become complicated, since you will not feel that happen. It is which of those events is coming, and whether it would be better to have somebody on the file before it arrives rather than explaining it afterward.