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The Irs Letter That Made Me Realize I Had Been Doing My Taxes Wrong For Years

The Irs Letter That Made Me Realize I Had Been Doing My Taxes Wrong For Years

The IRS Letter That Made Me Realize I Had Been Doing My Taxes Wrong for Years

I opened the envelope on a Saturday morning in February. The return address said "Department of the Treasury — Internal Revenue Service." I knew what it was before I read the first line. Every tax preparer knows. The CP2000. The letter that says "we found a discrepancy." The letter that says "you owe us money." The letter that says "we have been watching you."

I am a tax preparer. I have an Enrolled Agent license. I have prepared over 3,000 tax returns. I have represented clients in IRS audits. I have negotiated payment plans. I have filed amended returns. And I had been doing my own taxes wrong for six years.

The letter said I owed $14,287 in back taxes, penalties, and interest. It said I had underreported my income by $48,000 in 2019. It said I had claimed deductions I was not entitled to. It said I had failed to report cryptocurrency transactions. It said I had made errors that I would have caught if I had been preparing someone else's return. But I had not been preparing someone else's return. I had been preparing my own. And I had been sloppy.

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Here is how it happened. I started my tax preparation business in 2018. I was a sole proprietor. I filed Schedule C. I reported my income. I deducted my expenses. I paid my estimated taxes. And I thought I was doing everything right. But I was not.

The first mistake was simple: I was not tracking my business mileage. I drove to client meetings. I drove to the IRS office. I drove to continuing education classes. I drove to the post office to mail returns. I estimated my mileage at 6,000 miles per year. The actual mileage was closer to 12,000. At 58 cents per mile, that was $3,480 in missed deductions per year. Over six years, that was $20,880 in missed deductions. But that was not the problem. The problem was that I had been estimating. And estimates are not documentation.

The second mistake was worse: I had been deducting my home office as a percentage of my mortgage. But I had not been calculating the percentage correctly. I was using 25% of my home's square footage. The actual office was 15%. I was over-deducting by 10%. On a $1,800 monthly mortgage, that was $180 per month in excess deductions. Over six years, that was $12,960 in disallowed deductions. The IRS does not care if you made an honest mistake. They care if the numbers are wrong.

The third mistake was catastrophic: I had been trading cryptocurrency. Not a lot. A few hundred dollars here and there. I had bought Bitcoin in 2019. I had sold it in 2020. I had made a profit of $3,200. I had not reported it. I had not even thought about it. I had treated it like a stock trade, and I had assumed that the exchange would send me a 1099. They did not. And I did not report the gain.

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The IRS had the data. They had the exchange records. They had the blockchain. They knew exactly when I bought, when I sold, and how much I made. And they had been waiting for me to report it. When I did not, they sent the CP2000. With penalties. With interest. With the full force of the federal government.

I sat at my kitchen table and I stared at the letter. I felt sick. I felt stupid. I felt like a fraud. I was a tax professional. I had clients who trusted me. I had a reputation. I had a license. And I had been doing my own taxes like an amateur.

I called a colleague. He was an Enrolled Agent in Austin who specialized in IRS representation. I told him what happened. He said, "You are not the first tax preparer to get a CP2000. You will not be the last." He said, "The IRS does not care who you are. They care if the numbers match." He said, "We need to file amended returns. We need to negotiate the penalties. We need to set up a payment plan. And we need to do it before the interest compounds any further."

We filed six amended returns. We corrected the mileage. We corrected the home office percentage. We reported the cryptocurrency. We paid the tax. We negotiated the penalties — the IRS reduced them from $4,200 to $1,800 because we demonstrated reasonable cause. We set up a payment plan: $400 per month for 36 months. And I swore I would never make these mistakes again.

I changed my practice. I bought mileage tracking software. I measured my home office with a tape measure. I hired a bookkeeper. I started using tax preparation software for my own return — the same software I used for clients. I stopped assuming that because I was a professional, I was immune to errors. I was not. Professionals make mistakes. The difference is that professionals fix them.

I tell this story to every client who asks why they should hire a tax preparer. I tell them about the CP2000. I tell them about the $14,287. I tell them about the amended returns. I tell them about the payment plan. And I tell them that even tax preparers need tax preparers — because when you do your own taxes, you are both the client and the professional, and that is a conflict of interest that can cost you thousands.

The IRS letter is framed on my office wall. Not because I am proud of it. Because I am not. It is there to remind me. To remind my clients. To remind anyone who walks in that taxes are serious. That the IRS is watching. That mistakes have consequences. And that the best way to avoid a CP2000 is to do it right the first time — or hire someone who will.

— Michael, from Austin, where the taxes are finally correct and the CP2000s are finally framed.

Daniel O'Brien

Daniel O'Brien

Mortgage analyst and personal finance writer; former loan officer (12+ years)

Daniel O'Brien spent twelve years as a mortgage loan officer in the Boston metro area, originating loans from Dorchester to Cambridge. After witnessing too many smart people make expensive mistakes due to bad information, he transitioned to independent consulting and writing. He lives in Roslindale with his wife Meghan, two kids, and an orange tabby named Sox. When not analyzing rate sheets or tracking Fed policy on his basement whiteboard, he's brewing Irish stout in the garage, grilling year-round, or sailing on Boston Harbor.

📍 Roslindale, Boston, MA

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