We're a CPA firm, so you already know which option we're going to recommend — which is exactly why this article starts by telling you when you shouldn't hire us. Not every Frederick County taxpayer needs a CPA. Some genuinely don't. Here's an honest look at all three options, and the specific line where the math changes.
If your tax situation looks like this, use the software and keep your money:
For that return, tax software does a competent job for a fraction of what a CPA costs. Paying several hundred dollars for a professional to type in your W-2 and click through the same screens you could handle yourself isn't good value, and we'll tell you so if you call us. We'd rather send you away with an honest answer than take a fee for work that doesn't need us.
The real question isn't "who's better" — it's "what does my return actually require?" A simple return handled by software is fine. A complicated return handled by software is where the expensive mistakes live. Most people don't fail to notice they've crossed that line; they never realize the line existed.
| Tax Software | Tax Chains | Local CPA Firm | |
|---|---|---|---|
| Who actually does the work | You — the software just files what you enter | Often a seasonal preparer with weeks of training; credentials vary widely | A licensed CPA, with years of education, exams, and continuing requirements |
| Best for | Simple W-2 returns | Simple to moderate returns, walk-in convenience | Business income, rentals, investments, multi-state, estates, planning |
| Advice | None — it processes, it doesn't advise | Limited; typically transactional and seasonal | Strategic, and available year-round |
| Maryland-specific knowledge | Generic — handles the common cases | Varies by preparer | Deep — decoupling, PTE, local rates, SDAT |
| Relationship | None | Often a different person each year | The same professional who knows your history |
| Cost | Lowest | Middle — and often not as cheap as advertised once forms add up | Highest per return — but the return isn't the product |
Software is remarkably good at what it does: it takes the numbers you give it, puts them in the right boxes, and files. What it fundamentally cannot do is tell you what you should have done differently.
It won't tell you that your $140,000 of 1099 consulting income should probably be running through an S-Corp, and that you've been overpaying self-employment tax for three years. It won't warn you that your Maryland return needs a bonus depreciation addback that your federal return doesn't. It won't ask whether the equipment purchase you're planning for January would be worth more in December. It won't notice that you've never claimed the FICA tip credit on your restaurant's returns, or that your rental losses are suspended and there's a way to unstick them.
Software answers the question you asked. A CPA tells you the question you should have asked. That gap is invisible until someone shows it to you — which is precisely the problem.
National tax chains occupy the middle: more help than software, less expertise than a CPA firm, with the convenience of a storefront. For a moderately simple return, they can work fine.
Two things to understand, though. First, "tax preparer" is not a protected credential the way "CPA" is. The person across the desk may be a seasoned professional or may have completed a training course a few weeks earlier — and the price is often the same either way. Second, the relationship is typically seasonal and transactional: you're unlikely to see the same person next year, and no one is thinking about your situation in July.
There's also a question worth asking directly, of any preparer: who is actually preparing my return, and where? Some firms outsource return preparation overseas. That's legal with proper consent, but many taxpayers have no idea it's happening to their financial data. Ask. You're entitled to a straight answer.
In our experience, these are the triggers that reliably move someone from "software is fine" to "you're now losing money by not having a CPA":
Here's the pattern we see constantly: someone uses software successfully for years while their situation is simple, keeps using it as the situation grows complicated because it worked before, and doesn't discover the cost until a CPA reviews three years of returns and finds five figures of overpayment. Nothing went visibly wrong. That's what makes it expensive.
Software and chains sell you a return. A CPA relationship sells you a year.
The valuable work — deciding whether to make an S-Corp election, timing an equipment purchase, structuring a property sale, planning quarterly estimates so April holds no surprises, getting the Maryland side of a federal strategy right — happens between May and December. By the time a return is being prepared in March, the decisions that mattered were already made, and the preparer is just recording history.
That's the real distinction. Not credentials, not price per form. It's whether anyone is looking at your situation while there's still time to change the outcome. At Mercer Flanagan, we've been doing that for Frederick County families and businesses since 1971 — our tax planning services exist precisely because the return is the last step, not the work.
And if the answer is that you don't need us — we'll say that. A quick conversation costs nothing and will tell you honestly whether your situation actually requires a CPA or whether software is genuinely sufficient. See our pricing, and decide for yourself.
Tell us what your return looks like and we'll tell you honestly whether it needs a CPA — including when the answer is no. Call (301) 662-6992.
Book a ConsultationFor a simple W-2 return, honestly — often yes, and we'll tell you so. The value shows up when your return involves decisions rather than data entry: entity structure, depreciation timing, multi-state income, rentals, or a business sale. In those situations the CPA fee is frequently smaller than the tax it saves, which flips the comparison entirely.
A refund only means your withholding exceeded your calculated tax — it says nothing about whether the calculation captured everything it should have. We regularly amend returns that produced refunds and find additional money the software never asked about. The refund isn't the score.
Yes, and it's one of the most common ways clients start with us. Generally three prior years remain open for amendment, so if a missed election, credit, or deduction turns up, it can often still be recovered. We'll tell you upfront whether a review is likely to be worth the effort in your case.
Not at Mercer Flanagan — every return is prepared and reviewed here in Frederick by a licensed CPA who meets with you personally. It's a fair question to ask any preparer, though, and one that many taxpayers never think to ask about their own financial data.
By Roy Cogliandolo, CPA · Mercer Flanagan · May 26, 2026
This article is general information, not tax or legal advice. Every situation is different — the right answer depends on your specific circumstances.