Should I take REG before TCP?

CPAPass generally favors REG first when tax fundamentals are weak. It is not an AICPA prerequisite, and experienced tax candidates may reasonably follow a different schedule.

How much of REG overlaps with TCP?

No current official overlap percentage exists. The Blueprints show clear connections in individuals, entities, and property, while REG also includes separate ethics, procedure, and business-law scope.

Do REG and TCP use the same tax-law testing dates?

REG and TCP use the same H.R. 1 timing rule, but they do not necessarily test the same provisions. Only provisions within each section's Blueprint scope are eligible. Within that scope, provisions effective in 2024 or 2025 became eligible on July 1, 2026; all other provisions become eligible in the calendar quarter beginning six months after their effective date.

2026 section comparison

REG vs TCP CPA Exam: Tax Connections and Study Order

REG is a required Core section. TCP is an optional tax Discipline. Their 2026 Blueprint areas have clear subject connections across individuals, entities, and property, but the AICPA does not publish an overlap percentage or require REG first.

Quick answer

REG covers a broad tax-and-law foundation. TCP concentrates on compliance and planning for individuals and entities plus property dispositions. Business law and professional responsibility remain meaningful REG scope rather than a promise of TCP duplication.

Compare with your own results

Practice REG and TCP in one free account

Keep explanations and progress together, or sample either public question set before registering.

Create free account Sample REG Sample TCP

Core

REG

Discipline

TCP

Conditional

Study order

Official 2026 Blueprint areas

These area names and weight ranges come from the current AICPA Blueprint. The comparison and study guidance below are CPAPass interpretation, not AICPA sequencing rules.

REG: Taxation and Regulation

Source-derived

Area I: Ethics, Professional Responsibilities and Federal Tax Procedures10-20%
Area II: Business Law15-25%
Area III: Federal Taxation of Property Transactions5-15%
Area IV: Federal Taxation of Individuals22-32%
Area V: Federal Taxation of Entities (including tax preparation)23-33%

TCP: Tax Compliance and Planning

Source-derived

Area I: Tax Compliance and Planning for Individuals and Personal Financial Planning30-40%
Area II: Entity Tax Compliance30-40%
Area III: Entity Tax Planning10-20%
Area IV: Property Transactions (disposition of assets)10-20%

Blueprint tasks are representative, not exhaustive. The number of listed tasks does not establish content weight or predict the exact questions a candidate will receive.

Official-source contract reviewed 2026-08-03

Open official Blueprint

Current tax-law boundary

Only H.R. 1 provisions within the applicable REG or TCP Blueprint scope are eligible for testing. Within that scope, provisions effective in 2024 or 2025 became eligible on July 1, 2026; all other provisions become eligible in the calendar quarter beginning six months after their effective date.

Read the AICPA testing notice

How REG and TCP connect or separate

The labels below distinguish a genuinely shared subject from adjacent real-world context and clearly separate scope. They do not estimate an overlap percentage.

CPAPass comparison of the official 2026 content-area boundaries
Comparison	In REG	In TCP	Study implication
Individuals Shared subject, different objective	Federal Taxation of Individuals tests individual federal tax rules.	Tax Compliance and Planning for Individuals and Personal Financial Planning extends individual scenarios into compliance and planning decisions.	REG rule fluency can help, but TCP requires practice choosing and explaining planning consequences.
Entities Shared subject, different objective	Federal Taxation of Entities, including tax preparation, establishes broad entity tax treatment.	Entity Tax Compliance and Entity Tax Planning split compliance work from planning work.	Separate compliance questions from planning questions instead of treating every entity problem as the same task.
Property transactions Shared subject, different objective	Federal Taxation of Property Transactions covers tax treatment of property transactions.	Property Transactions focuses on disposition of assets within the TCP scope.	Track basis, character, timing, and taxpayer before attempting a planning recommendation.
Law and professional responsibility Distinct scope	REG separately includes ethics, professional responsibilities, federal tax procedures, and business law.	Those labels are not separate TCP content areas.	A broad REG plan cannot be reduced to the tax subjects that connect with TCP.

Worked comparison

A taxpayer is considering the timing and structure of a property disposition.

REG question

REG-style work may ask you to calculate the tax result under the applicable rules.

TCP question

TCP-style work may ask you to compare alternatives, identify planning consequences, and support a recommendation.

Practice cue: Do the rule-based calculation before the planning comparison, then state which facts could change the recommendation.

CPAPass guidance: REG first often helps when tax foundations are weak

CPAPass-authored study guidance

If both sections are in your plan and tax fundamentals are not already strong, REG-first study can create a useful foundation. That is CPAPass guidance, not an AICPA eligibility rule.

Consider REG first when

You need broad practice with individual, entity, and property rules before planning scenarios.
You want to separate a tax-rule gap from a planning-judgment gap.

Consider TCP first when

You have chosen TCP and current tax compliance or planning work makes its scenarios immediately familiar.
A diagnostic confirms that REG tax mechanics are already usable and your schedule places TCP first.

Exception: Strong REG business-law performance alone does not establish TCP readiness. Test the individual, entity, and property connections directly.

Common mistakes to avoid

1Presenting REG as an official prerequisite for TCP.
2Repeating an unsupported percentage for topic overlap.
3Treating tax compliance and tax planning as the same type of question.
4Using tax material that does not reflect the current AICPA testing-policy boundary.

The real connection between REG and TCP

The current area labels make the relationship visible without inventing a single overlap number. Individual, entity, and property subjects appear in both families, while TCP divides entity compliance from entity planning and adds personal financial planning to its individual area.

REG remains broader in a different direction. Ethics, federal tax procedures, and business law are explicit REG areas. Those subjects matter to REG preparation even when they do not explain your TCP readiness.

Troubleshoot rule errors separately from planning errors

When you miss a shared-subject question, label the cause. A wrong basis or character calculation is a rule problem. A correct calculation followed by a poor choice between alternatives is a planning problem. The repair set should match the failure.

Tax scope can change. Use current Blueprint-aligned material and check the AICPA testing-policy notice before relying on an older summary, threshold, or free PDF.

Compare REG and TCP with real questions

Use the guides to understand scope, then practice and download samples for both sections. If one is a Discipline, use the Discipline guide before locking the choice.

Find whether REG or TCP needs your next drill

Create a free CPAPass account to practice both sections, review why you missed each question, and direct the next set toward the weaker pattern.

Start free REG and TCP practice

Frequently Asked Questions

Should I take REG before TCP?: CPAPass generally favors REG first when tax fundamentals are weak. It is not an AICPA prerequisite, and experienced tax candidates may reasonably follow a different schedule.
How much of REG overlaps with TCP?: No current official overlap percentage exists. The Blueprints show clear connections in individuals, entities, and property, while REG also includes separate ethics, procedure, and business-law scope.
Do REG and TCP use the same tax-law testing dates?: REG and TCP use the same H.R. 1 timing rule, but they do not necessarily test the same provisions. Only provisions within each section's Blueprint scope are eligible. Within that scope, provisions effective in 2024 or 2025 became eligible on July 1, 2026; all other provisions become eligible in the calendar quarter beginning six months after their effective date.