IRS Accuracy Penalty in Virginia: Negligence & Substantial Understatement
Understand IRS accuracy-related penalties for Virginia taxpayers. Covers negligence penalties, substantial understatement, penalty rates, defenses, and how to get the penalty removed.
IRS Accuracy Penalty in Virginia: Negligence and Substantial Understatement
The IRS accuracy-related penalty is 20% of the tax underpayment caused by negligence or a substantial understatement of income. Unlike the failure to file and failure to pay penalties, the accuracy penalty cannot be removed through first-time penalty abatement. Defending against it requires showing reasonable cause, substantial authority, or adequate disclosure.
For Virginia taxpayers, accuracy penalties often arise from the complexity of multi-state income allocation, unreported 1099 income from government contracts, and aggressive deductions that lack proper documentation.
How the Accuracy Penalty Works
The IRS imposes the accuracy penalty under IRC Section 6662 in two main situations:
Negligence or Disregard of Rules
Negligence means failing to make a reasonable attempt to comply with the tax code. The IRS defines it as any failure to exercise reasonable care in preparing a return. Common negligence triggers include:
- Failing to keep adequate books and records
- Not reporting income shown on information returns (W-2s, 1099s)
- Claiming deductions without documentation
- Making mathematical errors that a reasonable person would have caught
- Ignoring IRS notices or correspondence
Disregard of rules means careless, reckless, or intentional disregard of IRS rules and regulations. This is a step beyond simple negligence.
Substantial Understatement of Income Tax
A substantial understatement occurs when the understatement exceeds the greater of $5,000 or 10% of the tax that should have been shown on the return. For most Virginia taxpayers with moderate to high incomes, the 10% threshold is the relevant measure.
Example: Your return shows $15,000 in total tax. The IRS audit determines your correct tax is $20,000. The understatement is $5,000, which is 25% of the correct tax. Since $5,000 exceeds both the $5,000 floor and 10% of $20,000 ($2,000), this qualifies as a substantial understatement. The accuracy penalty is 20% of $5,000 = $1,000.
Virginia-Specific Accuracy Penalty Triggers
Unreported 1099 Income
Northern Virginia has a high concentration of government contractors and consultants who receive 1099 income. The IRS matches 1099s against your return. If you received a 1099 and did not report the income, the accuracy penalty is almost automatic.
This is particularly common with:
- Short-term government consulting contracts
- Freelance work alongside a W-2 federal job
- Income from multiple contracts that gets lost in paperwork
- 1099-K from payment platforms that report gross amounts
DC/VA Income Allocation Errors
Virginia taxpayers who work in DC must file Virginia returns reporting their full income. Errors in how income is allocated between jurisdictions can create understatements that trigger the accuracy penalty. This affects federal employees, lobbyists, trade association staff, and anyone who crosses the DC/Virginia line for work.
Home Office Deductions
The IRS scrutinizes home office deductions closely. Virginia's high housing costs mean home office deductions are often large, which increases audit risk. If the IRS determines your home office does not meet the exclusive and regular use test, the deduction is disallowed and the accuracy penalty may apply to the resulting understatement.
Employee vs. Contractor Misclassification
Virginia businesses that classify workers as independent contractors when they should be employees face accuracy penalties on the unpaid employment taxes. The IRS uses a multi-factor test to determine worker classification, and getting it wrong triggers both back taxes and the 20% accuracy penalty.
Defenses Against the Accuracy Penalty
Reasonable Cause and Good Faith
The most common defense. You must show that you acted in good faith and that there was reasonable cause for the underpayment. This requires demonstrating that you relied on professional advice, maintained adequate records, and made a genuine effort to comply.
The "good faith" element is critical. If you hired a competent tax professional, provided them with complete information, and followed their advice, this is a strong reasonable cause defense even if the advice turned out to be wrong.
Substantial Authority
If there was "substantial authority" for your tax position, the accuracy penalty does not apply. Substantial authority means there was a reasonable basis in the tax code, regulations, court cases, or IRS guidance to support your position. This is a legal analysis, not a factual one, and typically requires professional evaluation.
Adequate Disclosure
If you disclosed the questionable position on your return (using Form 8275 or Form 8275-R), the accuracy penalty is reduced or eliminated for that position. Disclosure means you told the IRS about the position upfront, which negates the "hiding something" implication that drives the penalty.
To use this defense, the disclosure must have been made on the original return. You cannot go back and disclose after an audit begins.
Reliance on Professional Advice
If a licensed tax professional prepared your return and made the error, you may be able to shift responsibility. You need to show that you provided the professional with all relevant information and that the professional's credentials and experience were appropriate for the complexity of your return.
The Accuracy Penalty Cannot Be Removed by FTA
This is a critical distinction. First-time penalty abatement only applies to failure to file and failure to pay penalties. The accuracy penalty requires one of the specific defenses listed above. Simply having a clean compliance history does not remove an accuracy penalty.
This means accuracy penalties require more work to resolve. You need to build a substantive defense, not just demonstrate compliance history.
Virginia State Accuracy Issues
Virginia does not impose a separate "accuracy penalty" equivalent to the federal Section 6662 penalty. However, if the IRS adjusts your federal return and increases your federal taxable income, Virginia will follow with a state adjustment. The state may impose its own late filing or late payment penalties on the additional state tax that results from the federal adjustment.
This means a federal accuracy penalty often creates a cascade: federal underpayment plus federal accuracy penalty plus Virginia state tax adjustment plus Virginia penalties and interest on the additional state tax.
Audit Defense and the Accuracy Penalty
The accuracy penalty is typically proposed during an IRS audit. Your representative can contest the penalty during the audit itself, before it is formally assessed. This is the best time to present your defense, because once the penalty is assessed, removing it becomes more difficult.
If the examiner insists on the penalty and you disagree, you can take the issue to the IRS Office of Appeals. Appeals officers have authority to remove accuracy penalties that were improperly assessed.
Professional Help with Accuracy Penalties
Bill Fritton, EA, MBA, at Virginia IRS penalty relief specialist in Vienna, VA handles IRS accuracy penalty cases for Virginia taxpayers. He evaluates the available defenses, builds the case for reasonable cause or substantial authority, and represents you during audit proceedings and appeals. Contact Back Tax Expert Inc. to discuss your accuracy penalty.
Frequently Asked Questions
What is the IRS accuracy penalty?
The accuracy penalty is 20% of the tax underpayment caused by negligence, disregard of rules, or substantial understatement of income. A substantial understatement is the greater of $5,000 or 10% of the correct tax. This penalty is separate from failure to file and failure to pay penalties.
Can the accuracy penalty be removed?
Yes, through reasonable cause and good faith, substantial authority for your tax position, or adequate disclosure on the return. First-time penalty abatement does not apply to accuracy penalties.
What triggers an accuracy penalty in Virginia?
Common triggers include unreported 1099 income from government contracts, DC/VA income allocation errors, large undocumented deductions, home office claims that fail the exclusive use test, and worker misclassification. Northern Virginia's complex tax landscape creates more opportunities for these issues.
Is the accuracy penalty assessed automatically?
No. The accuracy penalty is typically proposed by an IRS examiner during an audit. You have the opportunity to contest it before it is assessed. If the examiner assesses it, you can appeal to the IRS Office of Appeals.
Does Virginia have its own accuracy penalty?
Virginia does not have a separate accuracy penalty equivalent to the IRS Section 6662 penalty. However, federal adjustments that increase Virginia taxable income trigger state tax increases with associated state penalties and interest.

Bill Fritton
Back Tax Expert
Enrolled Agent and MBA with decades of experience resolving IRS and Virginia state tax problems. Owner of Back Tax Expert Inc. in Vienna, VA.