Filing Status Starts with Facts: Marital Status, Head of Household, and Preparer Intake Controls

Filing status is not a cosmetic checkbox. It drives filing requirements, standard deduction, tax rates, credit eligibility, and many software diagnostics. For EA exam purposes, the key habit is simple: resolve the facts before you let the software carry forward a status from last year or from an intake form.

The most dangerous filing-status mistakes often start innocently. A taxpayer checks single because they live apart from a spouse, because they have always filed that way, or because the prior organizer was never updated. The preparer then has to slow down and ask the legal and household questions that determine the correct federal status.

Why filing status is a fact pattern, not a preference

The federal return first asks whether the taxpayer is considered married or unmarried for the year. That determination generally depends on the taxpayer's status at year-end, with special rules for legal separation, death of a spouse, and head of household.

From there, the preparer works through the available statuses:

• single
• married filing jointly
• married filing separately
• head of household
• qualifying surviving spouse

If more than one status is available, the taxpayer can choose the status that gives the best legal result. But a taxpayer cannot choose a status that the facts do not support.

The core marital-status questions

Ask about the legal relationship first

A practical intake control is to avoid starting with "what status do you want?" Start with:

• Were you married at any point during the year?
• Were you married on the last day of the year?
• If you say you were divorced or separated, was there a final divorce decree or separate maintenance decree?
• Did a spouse die during the year or in either of the two prior years?
• Did you remarry before year-end?

These questions prevent a common error: treating physical separation as if it automatically created single status. Living apart can matter for head of household, but informal separation by itself does not make a married taxpayer single.

Then ask the household questions

Head of household requires more than being unmarried or living separately. The preparer also needs facts about the home, costs of keeping up that home, and the qualifying person.

For an EA-style problem, the household tests usually point to these questions:

• Who lived in the home, and for how long?
• Was the person's absence temporary or permanent?
• Who paid more than half the household cost?
• Is the qualifying person a child, parent, or another qualifying relative?
• Is anyone else claiming the same person?

When a paid preparer determines that head of household status applies, Form 8867 due diligence becomes part of the workflow. The file should show the questions asked, the answers received, and the follow-up when facts were inconsistent, incomplete, or unusual.

A worked intake example

Marin Alvarez gives her preparer an organizer marked single. During a review call, she says she has been separated from Dorian since February and that their child lived with her from March through December. She also says no court order has been entered.

The preparer should not accept single just because Marin marked it. A better workflow is:

1. Confirm whether Marin and Dorian were still legally married on December 31.
2. If yes, evaluate whether Marin can file jointly, must file separately, or can be treated as unmarried for head of household.
3. Document where the child lived and who paid household costs.
4. If head of household is claimed, complete the paid-preparer due diligence workflow.

Assume Marin was still married on December 31, Dorian did not live in the home during the last six months, Marin paid 70% of household costs, and the child lived with Marin for more than half the year. The likely exam answer is not single. The analysis points to head of household if all required tests are met and documented; otherwise, the married filing statuses remain in play.

What to do when the client says the prior status was wrong

Prior-year filing mistakes are a separate problem from the current-year return. The preparer should:

• prepare the current return using the status supported by current-year facts
• ask enough questions to identify whether prior-year returns may be materially wrong
• explain correction options and consequences to the client
• document the advice given
• avoid signing a return based on a status the preparer knows or reasonably suspects is unsupported

That distinction matters on exam questions. The current return does not become wrong just because fixing earlier years is uncomfortable. The preparer still has to use the right current-year status.

Exam framing for EA candidates

Trap 1: treating the organizer as conclusive

An organizer is a starting point. If later facts contradict it, the preparer must follow up.

Trap 2: confusing separated with single

A taxpayer can live apart from a spouse and still be married for federal filing-status purposes unless a legal separation, divorce, or special head of household rule changes the result.

Trap 3: forgetting Form 8867 for head of household

Paid-preparer due diligence is not limited to credits. Head of household status can trigger the checklist and recordkeeping rules.

Trap 4: solving tax optimization before eligibility

First decide which statuses are legally available. Only then compare the tax result.

Quick decision rule

For filing-status questions, use this order:

1. Determine year-end marital status.
2. Check death, divorce, legal separation, and considered-unmarried rules.
3. Test household cost and qualifying-person facts if head of household is possible.
4. Apply Form 8867 due diligence when required.
5. Choose the best status only from the statuses the facts support.

That order keeps the exam answer grounded in law rather than in the client's preferred label.