What Every Client Needs to Understand About Taxpayer Responsibility

The IRS Holds the Taxpayer Responsible

What tax professionals need to communicate to clients about their ultimate responsibility for accurate returns, recordkeeping, and responding to IRS notices

As tax professionals, we carry the technical burden. We apply the law, complete the forms and guide clients through complicated rules.

But one principle never changes: the taxpayer is ultimately responsible for their return.

Section 6011(a) requires the taxpayer to make a return and provide all required information. When clients understand that clearly, your practice runs smoother and compliance and practice management risks decrease.

The IRS Holds the Taxpayer Responsible

The IRS holds the taxpayer legally responsible for the accuracy of their income tax return, even if a professional prepared it.

When a client signs a return, they are declaring under penalties of perjury that it is true, correct, and complete. That signature matters.

If a return contains errors that result in additional tax:

• The taxpayer must pay the balance due

• Interest accrues from the original due date until payment is made

• The IRS may assess an accuracy-related penalty of 20% of the underpayment

Relying on a preparer does not automatically eliminate penalties. It may be considered in certain situations, but it is not a guaranteed defense.

Clients need to understand this before they sign.

Complete Information Is Not Optional

A return filed by a paid preparer is only as accurate as the information provided.

Taxpayers are responsible for:

• Disclosing all income

• Providing all relevant documents

This includes:

• Forms W-2

• Forms 1099

• Schedules K-1

• Brokerage statements

• Documentation supporting deductions and credits

It also includes life changes such as:

• Marriage or divorce

• New dependents

• Changes in custody

• Self-employment income

• Moving to another state

  
  

If income is omitted because it was never shared, the return is still incorrect. The IRS will hold the taxpayer accountable, not the preparer.

Set expectations early. The tax interview is a full disclosure conversation, not just a document drop-off.

Review Before Signing

Too many clients treat signing as the final step in a process they barely reviewed. That is a mistake.

When clients sign a return, they are confirming it is accurate. Encourage them to review it carefully and ask questions.

At a minimum, they should understand:

• Total income

• Adjusted gross income

• Taxable income

• Credits and deductions claimed

• Final balance due or refund

  
  

If a number looks unfamiliar, that conversation should happen before filing, not after an IRS notice arrives.

IRS Notices Do Not Go Away

Another common issue is ignored mail. Many problems escalate because taxpayers fail to open or respond to IRS or state notices.

Deadlines matter.

• Interest and penalties continue to accrue

• Small issues can grow quickly

  
  

Responsibility does not automatically shift to the preparer just because a notice is issued.

Unless the taxpayer forwards the notice and engages the preparer to respond, the issue remains theirs.

Make it clear: if you receive a notice, contact us immediately.

“My Preparer Did It” Is Not a Shield

Clients sometimes believe hiring a professional transfers liability. It does not.

The IRS generally holds the taxpayer responsible for:

• Underreported income

• Overstated deductions

• Unpaid tax

Even if a preparer made an error:

• The taxpayer must still pay tax and interest

Courts have consistently held that taxpayers cannot avoid liability simply because a preparer made a mistake.

When clients understand this, they are more engaged and more careful about the information they provide.

Recordkeeping Is Also the Taxpayer’s Job

Taxpayers must maintain adequate records to support:

• Income

• Deductions

• Credits

This includes:

• Receipts

• Mileage logs

• Invoices

• Supporting documentation

You can advise what to keep and how long, but the responsibility belongs to the taxpayer.

If the IRS examines a return:

• The burden of proof is on the taxpayer

• Without documentation, items may be disallowed

Encourage organized recordkeeping throughout the year, not just at filing time.

A Stronger Client Relationship

A successful tax engagement is a partnership.

• You bring expertise and due diligence

• The taxpayer provides complete information and documentation

When clients understand their responsibility, compliance improves.

This is not about shifting blame. It is about setting clear expectations.

• The return belongs to the taxpayer

• Your role is to prepare and advise

• Their role is to disclose, review, and retain

When both sides do their part, everyone is better protected.

What Every Client Needs to Understand About Taxpayer Responsibility by NATP Staff

Disclaimer

Information included in this article is accurate as of the publication date. This post does not reflect tax law changes or IRS guidance that may have occurred after the publishing date.