Entities & K-1s
Partnerships, S corporations, rentals, tiered interests, ownership changes, or basis questions.
Independent tax review · built for complexity
A finished return can still leave important questions unanswered.
See where entities, investments, trusts, jurisdictions, and major financial changes intersect—then decide whether a focused second opinion is worth pursuing.
✓ About three minutes✓ No documents or SSNs✓ Nothing saved without consent
10-question screenStructured around real sources of tax complexity
Private by designNo sensitive uploads during the diagnostic
Decision-ready resultA plain-English profile and next step
01
Your diagnostic
Ten questions · private · educational
Find the places where a routine review may not be enough.
This screening focuses on the architecture of your tax life: what changed, what connects, and where confidence may be weakest. It never asks for account numbers, Social Security numbers, dollar amounts, or documents.
Nothing is retained unless you request follow-up.
02
Who it’s for
When “complete” is not the only question
Built for returns with moving parts—and people who want to understand how they connect.
The diagnostic is most useful when the quality of the answer depends on coordination across forms, entities, advisors, jurisdictions, or tax years.
Trusts & family structures
Trust K-1s, estates, gifts, irrevocable structures, or several generations of reporting.
Jurisdictional complexity
Multi-state income, a residency move, foreign reporting, or credits that must coordinate.
Major change or open issue
A sale, concentrated gain, new equity compensation, notice, amendment, or unresolved prior-year position.
03
The method
A disciplined first pass
Complexity is not the same thing as error. It is a reason to ask better questions.
The method looks for intersections: places where a technically complete return may still deserve stronger reconciliation, explanation, or independent judgment.
Map the architecture
Identify the entities, investments, jurisdictions, trusts, and changes that shape the return.
Interrogate the handoffs
Surface where documents, basis, elections, estimates, and professional advice must reconcile.
Calibrate the response
Match the facts to a routine, targeted, independent, or priority level of follow-up.
04
What we check
The six lenses
A return is a system, not a stack of forms.
Income architecture
W-2s, K-1s, investments, rentals, and equity compensation
Ownership & entities
Partnerships, S corporations, private businesses, and basis
Trusts & family planning
Grantor trusts, estates, gifts, and intergenerational structures
State footprint
Residency, multi-state income, PTE taxes, and credits
Major change
Liquidity events, property sales, career changes, and new investments
Preparation confidence
Open questions, notices, unexplained results, and review quality
05
Second opinion
Independent without being disruptive
A second opinion should sharpen the question—not manufacture a problem.
Keep your existing preparer if that relationship works. A focused review can examine a defined issue, test the important handoffs, and give you a clearer basis for deciding what—if anything—should happen next.
Defined scope
Agree on the exact return, transaction, notice, or reporting question before documents are requested.
Independent judgment
Review the issue on its own facts without assuming that complexity means something went wrong.
Decision-ready explanation
Translate the review into what was observed, why it matters, and the practical options available.
Secure intake
Confidential documents are requested only after fit, scope, fees, and engagement terms are confirmed.
06
Questions
Before you begin
Clear boundaries make for a better review.
Does the diagnostic verify that my return is correct?
No. It is an educational screening that identifies areas where added explanation, reconciliation, or professional review may be useful.
Do I upload tax documents during the diagnostic?
No. The public diagnostic does not request documents, Social Security numbers, account numbers, or dollar amounts. Secure intake begins only after a review is accepted.
Does requesting a second opinion create an engagement?
No. A professional-client relationship begins only after scope, fees, conflicts, and written engagement terms are separately confirmed.
Can I keep working with my existing preparer?
Yes. A second opinion can be tightly scoped to a question or issue and does not require replacing the professional who prepared the return.
What if I have an urgent notice or deadline?
Complete the diagnostic, select the urgent timing option, and email hello@taxdiagnostic.com. Do not send confidential tax documents by ordinary email.
Clarity starts with structure