Does a tax hack work if nobody can cite the law behind it?
The claim: “A tax hack works even if no one can point to the law behind it.”
False: a tax position needs legal authority
No. A return position is only as good as the authority behind it. Circular 230 §10.34 (31 C.F.R. §10.34) bars practitioners from signing a return, or advising a position, that lacks a reasonable basis. Treas. Reg. §1.6662-3(b)(3) defines reasonable basis as significantly higher than not frivolous. Taxpayers who take unsupported positions face the 20% accuracy-related penalty under IRC §6662 and, for frivolous positions, a $5,000 penalty under IRC §6702.
Reviewed by Ebot Mbi, CPA, EA · Last reviewed · Law and figures current as of September 17, 2026
Key takeaways
- Legal authority for a position means the Code, regulations, rulings, court cases, and similar sources listed in Treas. Reg. §1.6662-4(d)(3)(iii).
- Circular 230 §10.34 bars practitioners from signing a return or advising a position that lacks a reasonable basis.
- Reasonable basis is a relatively high standard, significantly higher than not frivolous.
- Positions the IRS has identified as frivolous can bring a $5,000 penalty under IRC §6702, in addition to tax, interest, and other penalties.
- Asking which Code section supports a claim is a quick way to check any tax hack.
Where the claim comes from
Tax tips spread quickly online, and many come with confident promises and no sources. When someone asks for the Code section, the answer is often that it is a secret the wealthy use, that accountants don't know about it, or that it simply works.
Real tax planning does not work that way. Every legitimate position traces back to statutes, regulations, rulings, or cases that anyone can look up. If no one can say where a rule comes from, you cannot rely on it.
The IRS has flagged the problem directly. Its 2026 Dirty Dozen list (IR-2026-30) includes misleading tax advice on social media and warns that viral tax hacks can lead taxpayers to file returns with false information or claim credits they do not qualify for. The same list names a bogus "Self-Employment Tax Credit" promotion as a separate scheme. When a tip cannot be traced to a source, that alone should make you cautious.
What the law actually says
Circular 230, 31 C.F.R. Part 10, governs attorneys, CPAs, enrolled agents, and others who practice before the IRS. Section 10.34(a) prohibits a practitioner from signing a tax return or claim for refund that the practitioner knows, or reasonably should know, contains a position that lacks a reasonable basis. It also covers positions that are unreasonable under IRC §6694(a)(2) and willful or reckless conduct. Section 10.34(a)(1)(ii) applies the same limits to advising a client to take a position.
Treas. Reg. §1.6662-3(b)(3) defines reasonable basis as "a relatively high standard of tax reporting, that is, significantly higher than not frivolous or not patently improper." A position that is merely arguable or colorable does not meet it. To have a reasonable basis, a position must be reasonably based on one or more of the authorities listed in Treas. Reg. §1.6662-4(d)(3)(iii). Those include the Code, regulations, revenue rulings and procedures, court cases, and certain legislative history. Opinions of tax professionals, treatises, and articles are not authority.
For taxpayers, IRC §6662 imposes a 20% penalty for negligence or a substantial understatement. Adequate disclosure can reduce exposure only when the position has at least a reasonable basis. IRC §6702 imposes a $5,000 penalty for filing a frivolous return or submission, and Notice 2010-33 lists positions the IRS has identified as frivolous.
What is true and what is not
Some legitimate provisions are little known, and a good strategy can sound surprising at first. The difference is that a legitimate strategy can be traced to its source, and a professional can explain the requirements and risks. A claim whose only support is popularity, confidence, or an unnamed "rule" has no authority behind it, however many people repeat it.
- True: many valuable provisions are not widely known.
- True: a practitioner can advise a position that has a reasonable basis, with disclosure where required.
- Not true: a position works because many people use it.
- Not true: a secret rule exists that professionals are unaware of or unwilling to use.
What to do instead
Before acting on any tax tip, ask three questions. What Code section, regulation, or ruling supports it? What are the requirements, and do my facts meet them? What happens if the IRS disagrees?
Then check the answers. Read the cited section on an official source, such as the U.S. Code or the Code of Federal Regulations, and look for IRS guidance on the same topic. If the tip is about a credit or deduction, read the form instructions to see what the IRS requires you to show.
If you have already claimed something you cannot source, have the return reviewed. If the position is unsupported, an amended return may reduce penalties and interest. If the position appears on the IRS frivolous list, correct it promptly.
When you hire a professional, expect written support for significant positions: the authority relied on, how your facts fit it, and the level of confidence. That record also helps you show reasonable cause if a position is later challenged.
How ebotCPA helps
Bring us the tip or strategy. We research the authorities, explain whether and how it applies to your facts, and tell you how strong the position is. If it has already been claimed, we review your return and outline your options.
Book a $497 Case Analysis to have Ebot Mbi, CPA, EA review your facts before you act.
Frequently asked questions
What does reasonable basis mean in tax?
It is a standard for return positions that is significantly higher than not frivolous. A position meets it when it is reasonably based on recognized authorities such as the Code, regulations, rulings, or cases.
Can a CPA sign a return with a position that has no legal support?
No. Circular 230 §10.34 prohibits practitioners from signing a return, or advising a position, that lacks a reasonable basis, and IRC §6694 imposes separate preparer penalties.
What is the penalty for a frivolous tax position?
IRC §6702 imposes a $5,000 penalty for a frivolous return or specified submission, in addition to any tax, interest, and other penalties.
How can I check whether a tax tip is real?
Ask for the specific Code section or regulation, read it on an official source, confirm that your facts meet each requirement, and have a credentialed professional review anything significant.
Have facts like these?
Book a $497 Case Analysis to have Ebot Mbi, CPA, EA review your facts before you act.
