CFP Tax Planning Cheat Sheet (2026): Key Formulas, Rules, and Mnemonics

Most CFP candidates trip up on tax planning not because they don't know the rules, but because they struggle to apply them in complex, multi-step scenarios. The examiner loves to test your ability to prioritize rules and perform calculations under pressure, especially when multiple tax provisions interact.

To excel in CFP Tax Planning (CFP6), you must move beyond rote memorization to truly understand the interplay of income, deductions, credits, and basis. This section demands precision in applying formulas, identifying common pitfalls like passive activity loss limitations, and knowing key thresholds for the 2026 exam.

Your 7-Day CFP Tax Planning Sprint (CFP6)

Tax Planning is a cornerstone of financial planning, comprising a significant portion of the CFP exam. It's not just about crunching numbers; it's about understanding the why behind tax strategies and applying complex rules accurately. This section, often referred to as CFP6, tests your knowledge across income tax fundamentals, capital gains, passive activities, AMT, gift and estate taxes, and retirement plan taxation. Success here hinges on rigorous practice and a structured approach.

Instead of a generic review, let's turn this cheat sheet into an actionable 7-day sprint designed to solidify your understanding and boost your score. Each day focuses on critical concepts, formulas, and common traps, culminating in a strong, test-ready foundation.

Day 1: Income, Deductions, and AGI Fundamentals

Focus: Gross Income inclusions and exclusions, Adjustments to Gross Income (Above-the-Line deductions), and the calculation of Adjusted Gross Income (AGI). Must-Know Formulas & Rules:

• Gross Income: All income from whatever source derived, unless specifically excluded.
• Adjustments to Gross Income (Above-the-Line):
• Educator expenses (up to $300, 2024, adjust for 2026 if changed).
• IRA contributions (deductible vs. non-deductible).
• Student loan interest (up to $2,500, 2024).
• HSA contributions.
• Self-employment tax (50% of SE tax).
• Alimony paid (for divorce agreements before 2019).
• AGI Formula: Gross Income - Adjustments = AGI. This is your foundation for many other tax calculations.

Common Traps & Test-Day Reminders:

• Trap: Confusing adjustments (above-the-line) with itemized deductions (below-the-line). AGI is a critical threshold for many itemized deductions, credits, and other limitations.
• Why it's tempting: Both reduce taxable income, but their impact on AGI-dependent calculations is vastly different.
• Reminder: Always calculate AGI first. Pay close attention to the year of divorce agreements for alimony.

Mnemonic: Use "I Eat Sweet Home AL" for common AGI adjustments: IRA, Educator, Student Loan Interest, HSA, ALimony (pre-2019). Checkpoint: Can you list 5 common AGI adjustments without looking?

Day 2: Itemized Deductions, Credits, and Tax Calculation

Focus: Standard vs. Itemized Deductions, Qualified Business Income (QBI) Deduction, Tax Credits, Marginal vs. Effective Tax Rates, and Alternative Minimum Tax (AMT) basics. Must-Know Formulas & Rules:

• Standard Deduction (2024, adjust for 2026):
• Single: $14,600
• Married Filing Jointly: $29,200
• Head of Household: $21,900
• Additional amounts for age 65+/blind.
• Itemized Deductions (Schedule A):
• Medical Expenses: > 7.5% AGI threshold.
• State and Local Taxes (SALT): Limited to $10,000 per household.
• Home Mortgage Interest.
• Charitable Contributions: AGI limitations (e.g., 60% cash, 50% ordinary income property, 30% capital gain property).
• Qualified Business Income (QBI) Deduction (Section 199A): Generally 20% of QBI, subject to taxable income limitations and specified service trade or business (SSTB) rules.
• Tax Credits: Dollar-for-dollar reduction of tax liability. Understand the difference between refundable (e.g., Earned Income Tax Credit) and non-refundable (e.g., Child Tax Credit).
• Marginal Tax Rate: Rate on the next dollar of income.
• Effective Tax Rate: Total tax liability / Total Taxable Income.
• AMT Triggers: Incentive Stock Options (ISOs) exercise, large state/local tax deductions, accelerated depreciation.

Common Traps & Test-Day Reminders:

• Trap: Overlooking the AGI floor for medical expenses or the SALT cap.
• Why it's tempting: It's easy to just sum up deductions. The exam tests your application of limitations.
• Trap: Confusing deductions (reduce taxable income) with credits (reduce tax liability).
• Why it's tempting: Both save tax, but credits are far more valuable.
• Reminder: The QBI deduction has complex phase-outs and SSTB rules that are frequently tested. Know the thresholds.

Mnemonic: Use "MICE" for common Itemized Deductions: Medical (over AGI), Interest (mortgage), Charitable, Expenses (state/local taxes, capped). Checkpoint: Can you calculate the tax savings from a $1,000 deduction vs. a $1,000 credit for someone in the 22% marginal tax bracket?

Day 3: Capital Gains, Losses, and Basis

Focus: Basis, holding periods, short-term vs. long-term capital gains/losses, net capital loss deduction, wash sales, and related party transactions. Must-Know Formulas & Rules:

• Basis: Cost + Improvements - Depreciation. Crucial for calculating gain/loss.
• Holding Period:
• Short-term: Assets held for one year or less. Taxed at ordinary income rates.
• Long-term: Assets held for more than one year. Taxed at preferential long-term capital gain rates (0%, 15%, 20% depending on income, 2024).
• Capital Loss Deduction: Up to $3,000 ($1,500 for MFS) against ordinary income per year. Unused losses carry forward indefinitely.
• Wash Sale Rule: Disallows a loss on the sale of stock or securities if you buy substantially identical stock/securities within 30 days before or after the sale. The disallowed loss is added to the basis of the new shares.
• Related Party Sales: Losses are disallowed, but the buyer can use the disallowed loss to offset a future gain (only up to the original disallowed loss amount).

Worked Example: Capital Loss Carryforward

Sarah, single, has a $50,000 salary and no other income or deductions. In 2026, she sells stock, realizing a $10,000 long-term capital gain and a $25,000 short-term capital loss.

Step 1: Net Capital Gain/Loss:

• Net Loss = Short-term Loss - Long-term Gain
• Net Loss = $25,000 - $10,000 = $15,000 Net Short-Term Capital Loss

Step 2: Apply Annual Deduction Limit:

• Sarah can deduct up to $3,000 of capital losses against ordinary income.
• Her taxable income will be reduced by $3,000.

Step 3: Calculate Capital Loss Carryforward:

• Remaining Loss = Net Loss - Annual Deduction
• Remaining Loss = $15,000 - $3,000 = $12,000
• This $12,000 is a short-term capital loss carryforward to 2027. It retains its character.

Common Traps & Test-Day Reminders:

• Trap: Forgetting that short-term losses net against short-term gains first, then long-term gains. Similarly for long-term.
• Why it's tempting: Just netting all gains and all losses together is simpler, but incorrect.
• Trap: Missing the wash sale rule's 61-day window (30 days before, 30 days after, plus the day of sale).
• Why it's tempting: Candidates often only consider the "buy back within 30 days" part.
• Reminder: Basis rules are crucial for inherited property (step-up) vs. gifted property (carryover, then dual basis for loss). Know the difference!
• Try VoraPrep's free CFP practice questions to test your understanding of basis and capital gains.

Checkpoint: Can you explain the difference in basis for inherited vs. gifted property?

Day 4: Passive Activities and Gift/Estate Tax Basics

Focus: Passive Activity Loss (PAL) rules, material participation, gift tax annual exclusion, marital deduction, and generation-skipping transfer tax (GSTT) basics. Must-Know Formulas & Rules:

• Passive Activity Loss (PAL) Rules: Losses from passive activities (e.g., rental real estate, limited partnerships) can only offset passive income. Unused PALs carry forward indefinitely.
• Material Participation: Key to avoiding PAL rules. There are 7 tests (e.g., >500 hours, substantially all participation).
• Active Participation Exception (Rental Real Estate): Allows up to $25,000 in rental losses to offset ordinary income for taxpayers actively participating, phased out for AGI between $100,000 and $150,000 (2024, adjust for 2026).
• Gift Tax Annual Exclusion (2024, adjust for 2026): $18,000 per donee per year. Can be doubled to $36,000 for married couples splitting gifts.
• Unified Credit (2024, adjust for 2026): Exempts $13.61 million from gift and estate taxes. This amount is portable between spouses.
• Marital Deduction: Unlimited deduction for gifts/bequests to a U.S. citizen spouse.
• Generation-Skipping Transfer Tax (GSTT): A separate tax on transfers to "skip persons" (two or more generations below the transferor), in addition to gift/estate tax.

Common Traps & Test-Day Reminders:

• Trap: Assuming all rental losses are passive. The active participation exception or real estate professional status can change this.
• Why it's tempting: Rental income is often a default "passive" thought.
• Trap: Forgetting the gift tax annual exclusion is per donee, not per donor.
• Why it's tempting: Many think it's a total per-donor limit.
• Reminder: Know the difference between a present interest gift (qualifies for annual exclusion) and a future interest gift (does not).

Mnemonic: For Material Participation tests, remember "5-1-10-P-F-R-C": 500 hours, 100 hours (substantially all), 100 hours (significant participation if >100 hours and total >500), Previous 5 of 10 years, For 3 prior years (personal service activity), Real estate professional, Continual activity. Focus on the core tests for the exam. Checkpoint: How much can a married couple gift tax-free to their son and daughter-in-law in 2026, assuming both parents gift to both?

Day 5: Retirement Plan Taxation & Education Benefits

Focus: Taxation of Traditional vs. Roth IRA contributions and distributions, 401(k) rules, Social Security taxation, and education tax credits/deductions. Must-Know Formulas & Rules:

• Traditional IRA:
• Contributions: May be deductible, reducing AGI.
• Distributions: Taxable at ordinary income rates (unless non-deductible contributions were made).
• Required Minimum Distributions (RMDs): Start at age 73 (SECURE Act 2.0).
• Roth IRA:
• Contributions: Never deductible.
• Qualified Distributions: Tax-free and penalty-free after age 59½, 5-year holding period, and for a qualified reason (death, disability, first-time homebuyer).
• 401(k) / 403(b) / 457:
• Contributions: Pre-tax (traditional) or after-tax (Roth).
• Distributions: Taxed similar to IRAs based on contribution type.
• Hardship withdrawals, loans, rollovers.
• Social Security Taxation: Up to 85% of benefits may be taxable, depending on "provisional income" (AGI + tax-exempt interest + 50% of SS benefits).
• Education Credits (2024, adjust for 2026):
• American Opportunity Tax Credit (AOTC): Up to $2,500 per eligible student for first 4 years of post-secondary education. 40% refundable.
• Lifetime Learning Credit (LLC): Up to $2,000 per tax return for any post-secondary education or job skills course. Non-refundable.
• 529 Plans: Contributions are after-tax, earnings grow tax-deferred, qualified distributions are tax-free. Max distribution from 529 to Roth IRA: $35,000 (lifetime limit, 5-year rule for 529, SECURE 2.0).

Common Traps & Test-Day Reminders:

• Trap: Confusing the 5-year rules for Roth IRA contributions vs. conversions. A separate 5-year clock starts for each conversion.
• Why it's tempting: The "general" 5-year rule for Roth qualified distributions is widely known.
• Trap: Overlooking the provisional income calculation for Social Security taxation.
• Why it's tempting: It's a multi-step calculation that often includes tax-exempt income, which many forget.
• Reminder: Know the specific AGI phase-outs for education credits and deductible IRA contributions. These are frequently tested.

Mnemonic: For Roth IRA qualified distributions, remember "ADHD": Age 59½, Death, Home (first-time), Disability. (Plus the 5-year rule always applies). Checkpoint: What are the two main conditions for a Roth IRA distribution to be qualified?

Day 6: Business Entities, Other Taxes, and Ethical Considerations

Focus: Tax implications of different business entities (sole proprietorship, partnership, S-corp, C-corp), payroll taxes, and the ethical responsibility of tax advice. Must-Know Formulas & Rules:

• Sole Proprietorship: Schedule C, owner pays self-employment tax (15.3% on first $168,600, 2024, then 2.9% Medicare only) on 92.35% of net earnings.
• Partnership (and Multi-Member LLCs taxed as partnerships): Pass-through entity, Schedule K-1 for partners, partners pay SE tax.
• S-Corporation: Pass-through entity, Schedule K-1 for shareholders, shareholders pay SE tax only on wages, not on distributions.
• C-Corporation: Entity-level tax (21% flat rate, 2024), double taxation for dividends.
• Payroll Taxes: Employer and employee split Social Security (6.2% each) and Medicare (1.45% each). Additional Medicare Tax (0.9%) for high earners.
• Kiddie Tax: Unearned income of children below a certain age (under 18, or 18-23 if full-time student and not self-supporting) is taxed at trust and estate rates (which are higher).
• Ethical Considerations (CFP Board): When providing tax advice, a CFP professional must act in the client's best interest, be competent, disclose conflicts, and refer when appropriate.

Common Traps & Test-Day Reminders:

• Trap: Assuming S-corp distributions are subject to self-employment tax. Only reasonable wages are.
• Why it's tempting: Both partnerships and S-corps are pass-through, but their SE tax treatment differs.
• Trap: Forgetting the Kiddie Tax rules apply to unearned income above a small threshold (e.g., $2,500 in 2024).
• Why it's tempting: Many think all minor income is taxed at the child's lower rate.
• Reminder: Always consider the client's overall financial situation and goals when suggesting tax strategies, not just the tax savings in isolation.

Mnemonic: For Business Entities, remember "C-P-S-S": Corp (double tax), Partnership (pass-through, SE tax on all income), S-Corp (pass-through, SE tax only on wages), Sole Prop (Schedule C, SE tax on all income). Checkpoint: Explain the primary tax advantage of an S-corporation over a partnership for a highly profitable owner-operator.

Day 7: Synthesize, Review, and Attack Weaknesses

Focus: Consolidate your knowledge, identify lingering weak areas, and practice with exam-style questions. Action Plan:

• Review this entire cheat sheet: Read through all the sections, formulas, traps, and mnemonics. Can you articulate the "why" behind each rule?
• Tackle Practice Questions: This is where theory meets reality. Focus on scenario-based questions that require multi-step calculations. Don't just get the answer right; understand why the distractors are wrong. VoraPrep offers 3,000+ practice questions with AI-written explanations, perfect for this.
• Identify Your "Blind Spots": Are there specific areas (e.g., AMT calculations, QBI deduction phase-outs, basis adjustments) where you consistently struggle? Dedicate extra time to these. Our adaptive learning engine can pinpoint these for you.
• Create Custom Flashcards: For the rules, thresholds, and formulas you find hardest to recall, make physical or digital flashcards. Include the common trap for each.
• Simulate Exam Conditions: Take a timed quiz specifically on tax planning. This helps build stamina and manage time.

By the end of this 7-day sprint, you'll have moved from passive reading to active application, building a robust understanding of CFP Tax Planning.

Related VoraPrep Resources

• Need a broader review? Check out our CFP General Principles of Financial Planning Cheat Sheet (2026).
• Sharpen your skills with more tax-specific questions: Free CFP Tax Planning Practice Questions (2026).
• Get a holistic view of passing the exam: 15 Tips to Pass the CFP Exam in 2026.
• Compare VoraPrep's offerings: VoraPrep Pricing.

Official Resources and References

• For the most current tax law and thresholds, always refer to the official Internal Revenue Service (IRS) publications.
• Review the CFP Board's official content outline for Tax Planning at CFP.net.
• For details on the CFP professional's role and compensation, consult the Bureau of Labor Statistics.

--- Ready to Pass Your CFP Exam? VoraPrep offers an unparalleled study experience with over 3,000 practice questions, AI-written explanations, and an adaptive learning engine that pinpoints your weak areas. Our 24/7 AI tutor, Vory, is always there to clarify concepts. Start your journey with a free 7-day trial and see why hundreds of candidates trust VoraPrep. Visit voraprep.com to get started.

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Frequently asked questions

What are the highest-weighted topics in CFP Tax Planning (CFP6)?

The CFP Board's content outline generally emphasizes income tax fundamentals (gross income, deductions, credits), capital gains and losses, and tax implications of various investments and retirement plans. Understanding passive activity rules and AMT basics is also crucial for complex scenarios.

How much math is involved in the CFP Tax Planning section?

CFP Tax Planning involves a significant amount of calculation. You'll need to compute AGI, taxable income, capital gains/losses, and understand how various deductions and credits impact a client's overall tax liability. The exam tests your ability to apply formulas and rules accurately to specific financial situations.

Should I memorize all tax brackets and thresholds for the 2026 exam?

While knowing the general structure of tax brackets and key thresholds (like the gift tax annual exclusion, capital loss deduction limit, or AGI phase-outs) is important, the exam often provides necessary figures. Focus more on understanding how to apply these numbers and rules in a planning context, rather than just rote memorization of every single dollar amount.

What's the biggest mistake CFP candidates make in the Tax Planning section?

The most common mistake is failing to connect different tax concepts. Candidates often understand individual rules but struggle when a problem requires integrating AGI limitations, passive activity rules, and capital loss carryforwards into a single solution. Practice multi-step problems to build this synthesis skill.

How does VoraPrep help with CFP Tax Planning?

VoraPrep provides thousands of practice questions specifically designed to test your understanding of CFP Tax Planning. Our AI-written explanations clarify complex rules, and our adaptive learning engine identifies your weak areas, ensuring your study time is efficient and targeted. Our AI tutor, Vory, offers instant help whenever you get stuck.