CTC Cheat Sheet 2026

The 30 highest-yield CTC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the primary tax risk when an acquirer issues mostly cash rather than stock as consideration in a reorganization structured as tax-free? → The transaction may fail the continuity of interest requirement, making it fully taxable
2. Which trend has most significantly increased the use of Section 1031 like-kind exchanges in recent years? → Rising property values increasing embedded capital gains
3. What is a 'combined reporting' requirement in state corporate income taxation? → Filing a single return for all affiliated entities with commonly controlled income
4. What is the purpose of the W-4 form? → To inform employers of tax withholding preferences
5. When does the IRS have 6 years (instead of 3) to assess tax under the extended statute of limitations? → When the taxpayer omits more than 25% of gross income from the return
6. Why is financial forecasting important for strategic planning? → It projects future financial conditions to guide resource allocation decisions
7. A self-employed client earned $180,000 in net self-employment income. How should you advise regarding the deduction for one-half of SE tax? → It is an above-the-line deduction reducing adjusted gross income on Form 1040
8. A client asks whether they can deduct a home office used partly for personal purposes. What is the correct advisement? → The space must be used regularly and exclusively for business to qualify
9. A CTC's long-time client asks the practitioner to notarize a document and falsely attest to facts the practitioner knows are untrue. The correct response is to: → Refuse, as doing so would constitute fraud and violate professional ethics
10. A tax professional who provides 'covered opinions' on listed transactions must comply with which heightened requirements under Circular 230? → The opinion must include a more-likely-than-not conclusion on each relevant tax issue
11. What is the default federal tax classification for a single-member LLC? → Disregarded entity
12. A client received a CP2000 notice proposing additional tax. What is the most appropriate initial step in advising the client? → Review the notice against the client's records to determine accuracy
13. Which type of trust is most commonly used to remove life insurance proceeds from the insured's taxable estate? → Irrevocable Life Insurance Trust (ILIT)
14. A CTC practitioner discovers mid-engagement that a client's prior-year returns contain material errors. What is the practitioner's primary obligation? → Advise the client of the errors and recommend corrective action
15. A CTC is suspended from practice before the IRS under Circular 230. Which activity may the suspended practitioner still legally perform? → Prepare tax returns and sign them as compensated preparer
16. Which portfolio rebalancing method is generally most tax-efficient for taxable accounts? → Cash-flow rebalancing — direct new contributions to underweight assets
17. When a C corporation has an accumulated earnings and profits (E&P) deficit, how are distributions to shareholders classified? → As return of capital reducing the shareholder's basis
18. What is 'transfer pricing' in the state tax context and why do states scrutinize it? → The pricing of intercompany transactions used to shift income to lower-tax jurisdictions
19. Which method of accounting is generally required for C corporations with average annual gross receipts exceeding $29 million (2024 threshold)? → Accrual method
20. Which of the following best describes the 'qualified amended return' exception to the accuracy-related penalty under IRC §6664? → An amended return filed before the IRS contacts the taxpayer regarding the examination
21. For tax purposes, a C corporation's net operating loss (NOL) generated after 2017 can be carried forward for: → Indefinitely, limited to 80% of taxable income
22. Under the Circular 230 rules, a tax practitioner who discovers a client's error on a previously filed return must: → Promptly advise the client of the error and its potential consequences
23. Which of the following is a characteristic of a C corporation? → Subject to double taxation
24. A client donates appreciated stock held more than one year to a public charity. What is the maximum charitable deduction as a percentage of AGI? → 30%
25. How does risk appetite influence management decisions? → It defines the level of risk an organization is willing to accept in pursuit of objectives
26. A company's operating leverage is HIGH when: → Fixed costs are a large proportion of total costs
27. Which of the following transfers qualifies for the unlimited marital deduction? → A bequest to a surviving spouse who is a U.S. citizen
28. Under the 'return of client records' provisions of Circular 230, a practitioner who is discharged before completing services must: → Promptly return all records needed by the client to comply with tax obligations
29. Which Public Law limits states from taxing the income of a business whose only in-state activity is soliciting orders for goods shipped from outside the state? → Public Law 86-272
30. When should a strategic plan be revised? → When significant changes in the internal or external environment require adaptation