10 Common Mistakes When Hiring a Tax Accountant (and How to Avoid Them)

The most common mistakes when hiring a tax accountant are choosing on price alone, skipping credential checks, not getting the scope and fee in writing, hiring too late and assuming the professional is responsible for everything. Each one is easy to fix if you catch it early. This list explains ten of them, what they cost you and the simple step that prevents each.

1. Choosing only by the lowest price

A low price can mean a smaller scope, less review or hidden add-ons. It can also mean a good deal on a simple return. The mistake is comparing numbers without comparing what they include.

Fix: ask each firm to quote the same scope in writing, and compare the total, including state returns, extensions and notices. The comparison table in how to lower your tax prep bill helps.

2. Not verifying credentials

Anyone can say they are an expert. A CPA license, an enrolled agent status and an attorney's bar membership can all be checked. A preparer who is paid must have a PTIN.

Fix: verify with the state board of accountancy, the IRS directory of preparers and the state bar. Follow the steps in choosing the right provider.

3. Starting without a written engagement letter

Verbal agreements lead to disputes about what was promised and what it costs.

Fix: require an engagement letter that lists services, fees, exclusions, responsibilities and termination. See what to look for in an engagement letter.

4. Choosing a preparer based on a promised refund

Preparers who advertise huge refunds or guarantee a number before seeing your documents may be stretching the rules. If the IRS disallows items, you owe the tax, interest and potentially penalties.

Fix: ask for an honest process. A competent professional discusses what is supportable and explains risks.

5. Hiring too late

Waiting until April forces rushed work, limited availability and sometimes higher prices. Rushed returns are also more likely to contain errors.

Fix: hire in the off-season, collect documents early and use an extension deliberately when documents arrive late. The timeline guide shows when to act.

6. Handing over a shoebox

Unorganized records cost money under hourly billing and can lead to missed deductions or errors.

Fix: organize by category, prepare summaries for business income and expenses and tell your preparer about life changes. See documents needed.

7. Not reading the return before signing

You are legally responsible for the return even if a professional prepared it. A wrong bank number, a missing dependent or an omitted 1099 can cause delays and notices.

Fix: review the return line by line against your documents. Ask the preparer to explain any number you do not understand. Never sign a blank or incomplete return.

8. Assuming audits and notices are included

Many flat fees cover preparation only. If the IRS sends a notice, the professional may bill separately, or may not be willing to represent you if they are not authorized.

Fix: ask in advance: "If I receive a notice about this return, what would it cost, and who would handle it?" If you want protection, ask whether a CPA, EA or attorney would sign a Form 2848.

9. Not planning during the year

Many people only meet their accountant after year end, when it is too late to change much. A return can only report what already happened.

Fix: schedule a planning call in the fall. Discuss retirement contributions, estimated payments, equipment purchases and timing of income or deductions. Planning can be billed hourly or included in a retainer.

10. Ignoring data security

Tax documents include Social Security numbers, bank details and income. Sending them by unsecured email or giving access to someone you do not know can lead to identity theft or fraudulent returns.

Fix: ask how documents are transmitted and stored. Use a secure portal when possible. Consider an IRS Identity Protection PIN if you have been a victim of identity theft or want extra protection, as described on IRS.gov.

A short pre-hire checklist

You can print the full list from our hiring checklist.

When a mistake has already happened

If you already hired someone and realize there is a problem, act quickly:

1. Get copies of everything you gave them and all work they prepared.
2. Ask for corrections in writing if an error is discovered. An amended return (Form 1040-X) can fix mistakes in many cases.
3. Consider a second opinion from another CPA or EA before filing again.
4. Report misconduct if you believe the preparer acted improperly. The IRS accepts complaints about preparers using Form 14157, and state boards handle complaints about CPAs.
5. Pay what you owe, even if there is a dispute about who caused an error, since interest and penalties continue to grow.

Frequently asked questions

Can I get a refund of fees if my preparer made an error?

It depends on the engagement letter, the nature of the error and state law. Raise the issue in writing and ask about correcting the return at no charge. If the dispute is serious, consider a consultation with an attorney.

Am I liable if my preparer makes a mistake?

You are generally responsible for the information on your return. Penalties may sometimes be reduced if you relied reasonably on competent advice, but it depends on the facts.

Should I switch preparers every year?

Not necessarily. A long relationship can help the professional understand your situation. Switch if the work is poor, communication is bad or your needs change.

What if my preparer disappears?

Contact the firm, check the engagement letter for how records are returned and consider reporting the situation to the state board or IRS. Request your records and a transcript from the IRS.

Sources

• Internal Revenue Service — preparer complaints, Identity Protection PIN and amended returns
• National Association of State Boards of Accountancy — find state boards that handle CPA complaints
• Federal Trade Commission — consumer protection and fraud reporting

This is general guidance, not tax or legal advice.