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AAPA common mistakes

AAPA · Understand the traps and how to avoid them.

Mistake 1

Calculating the owner's or key employee's contribution first and treating the remaining amount as the rank-and-file allocation, without checking whether the resulting allocation satisfies the plan's allocation formula and the top-heavy minimum for non-key employees.

Candidates learn the maximization approach (solve for the owner, back into staff) as a shortcut and apply it even when the plan uses a pro-rata or integrated formula that constrains the outcome; they also forget that top-heavy plans require a 3% minimum (or the lesser of 3% or the highest key employee rate under a defined benefit accrual comparison) for non-key participants.

What to do instead

Before computing anything, identify the plan's allocation formula, whether the plan is top-heavy, and whether permitted disparity applies. Then compute the non-key minimum first, test the owner's target against the formula, and only then optimize. Write the constraint list at the top of your scratch work.

Mistake 2

Applying a single contribution limit (for example the 415(c) annual additions limit or the 402(g) elective deferral limit) to a participant who is subject to several limits at once, or applying the limits without aggregating controlled-group or affiliated service group employers.

The limits appear as separate facts to memorize, so candidates retrieve the right number but attach it to the wrong participant or the wrong plan year, and they overlook that all members of a controlled group are treated as one employer for testing and limits.

What to do instead

For every limit question, build a short checklist: which limit, whose compensation, which plan year, which employer aggregation. Confirm whether a controlled group, affiliated service group, or multiple-employer situation changes the denominator before selecting an answer.

Mistake 3

Treating a coverage or nondiscrimination test as passed by checking only the ratio percentage, without running the average benefit test or the average benefit percentage test when the ratio test fails.

The ratio percentage test is taught first and is the easiest to compute, so candidates stop once they get a number below 70% and either conclude failure or assume the plan is automatically disqualified, missing the alternative test path.

What to do instead

Memorize the decision tree: ratio percentage test first; if it fails, the plan may still pass the average benefit test, which requires both the nondiscriminatory classification test and the average benefit percentage test. State which test you are performing before computing.

Mistake 4

Confusing the roles and timing obligations in plan administration-for example, treating the plan administrator, the named fiduciary, and the trustee as interchangeable, or stating that the Summary Annual Report is due at the same time as the Summary Plan Description.

The terms overlap in practice, and the deadlines (SPD within 120 days of plan establishment, SAR within nine months after the plan year end with an extension available) are learned as a list rather than as a timeline tied to specific documents.

What to do instead

Build a one-page calendar mapping each document to its deadline and its responsible party, and practice restating who must act, by when, and to whom. On exam questions, identify the actor and the deadline before evaluating the answer choices.

Mistake 5

Answering client-communication questions by choosing the response that is technically complete but omits the required written disclosure, the required timing, or the participant's right to request information.

Candidates focus on the substantive answer (for example, the correct distribution option) and treat the delivery method as a formality, when the exam tests whether the communication satisfies ERISA disclosure requirements and the plan's claims procedure.

What to do instead

For every communication scenario, run a three-part check: content, form (written versus oral, SPD versus SMM), and timing. Eliminate any answer that gives correct information through a channel or deadline that does not satisfy the disclosure rules.

Mistake 6

Conflating eligibility service with vesting service, or applying the plan's eligibility waiting period without checking the maximum permitted eligibility conditions under the code and the break-in-service rules.

Both are measured in years of service, and candidates carry over the vesting schedule's rules into eligibility questions, or assume a plan may impose any waiting period the employer chooses.

What to do instead

Keep eligibility and vesting as separate columns in your notes: eligibility uses age and service conditions subject to the statutory maximum, vesting uses years of vesting service and the vesting schedule. For each question, name which type of service is being measured before computing.

Mistake 7

Assuming a plan amendment or a change in compensation definition applies to the entire plan year in which it is adopted, rather than to the period after adoption, and ignoring the protected-benefits rule for amendments that reduce accrued benefits.

Candidates think of plan years as indivisible units and forget that amendments generally operate prospectively and that section 411(d)(6) protections limit cutbacks to accrued benefits and certain early retirement benefits.

What to do instead

For amendment questions, establish the effective date, the adoption date, and whether the change reduces a protected benefit. Apply the change only from its effective date forward and flag any protected-benefit issue before selecting an answer.

Mistake 8

Computing a distribution or loan without checking the spousal consent requirement, the required minimum distribution rules, or the 10% early distribution penalty exceptions that apply to the specific participant's facts.

Candidates treat distribution questions as arithmetic problems about the account balance and tax withholding, and they skip the qualification conditions (QDRO status, separation from service, age, disability) that determine whether a distribution is even permitted.

What to do instead

Before computing an amount, answer four yes/no questions: is a distributable event present, is spousal consent required and obtained, does an RMD apply, and does a penalty exception apply? Only then do the arithmetic.

Mistake 9

Ignoring the compensation definition actually stated in the plan document and substituting gross W-2 pay, or forgetting that compensation must be limited to the annual compensation limit for the plan year.

Candidates default to the compensation figure that appears most prominently in the fact pattern, and they treat the annual compensation limit as a separate topic rather than as an automatic cap on every allocation and testing calculation.

What to do instead

Read the plan's compensation definition first, confirm which items are included or excluded, apply the section 401(a)(17) limit for the plan year in question, and only then use the figure in any allocation, testing, or benefit calculation.

Mistake 10

Producing a client-facing document or calculation without documenting the assumptions, the source of the data, and the reviewer or approval step, so the work product cannot be reconstructed or defended.

Candidates treat documentation as a final formatting step rather than as part of the deliverable, and they assume the reader shares their assumptions about census data, plan provisions, and effective dates.

What to do instead

Adopt a standard workpaper header: plan, plan year, data source and date, plan provisions relied on, assumptions, preparer, and reviewer. Treat any answer choice that skips documentation of assumptions as suspect in administration and operations questions.