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Estate & Trust

Form 706 estate tax return preparation support

Short answer

Form 706 estate tax prep support from Finbryn builds the workpapers for a US estate: an asset schedule sorted onto the form's own schedules, appraiser-coordinated valuations, and deductions organized for a credentialed signer to review before filing. The 2026 basic exclusion amount, published annually by the IRS, applies, and the return is due within 9 months of death.

Management report

Illustrative client ยท August 2026

USD

Reviewed before sending
Profit and loss
LineAugJul
Revenue142,380131,904
Cost of sales(51,260)(48,115)
Gross profit91,12083,789
Payroll(46,300)(45,900)
SoftwareNoted(6,480)(5,490)
Rent(8,000)(8,000)
Other operating(9,215)(9,870)
Net income21,12514,529

Reviewer's note

Software is up on last month after two seats were added mid-month. Revenue includes one milestone invoice that will not repeat next month.

Illustrative. An example of the document, not a client's figures.

Form 706 is a schedule-by-schedule inventory of everything an estate owns, not a single number. Real estate goes on one schedule, publicly traded stock on another, closely held business interests on a third, life insurance proceeds on a fourth, and so on through the form. Most of the actual work is organizing an executor's records into that structure correctly, not the arithmetic once everything is sorted.

We build that inventory from two sources: the fiduciary accounting ledger we keep for the estate, which already tracks what came in and at what value, and records the executor gathers separately, brokerage statements, deeds, appraisals, life insurance payout letters. Where the fiduciary accounting engagement already exists, this step is mostly a formatting exercise. Where it does not, we start by reconstructing the asset picture from whatever records the executor has.

Valuation is the part we are careful to be precise about: we do not value estate assets ourselves. A closely held business interest, a piece of real estate, or an unusual asset needs a professional appraisal, and we coordinate with the appraiser the executor engages, request what the schedule requires, and file the result against the right line. For publicly traded securities and cash, valuation is a matter of pulling the correct date-of-death price, which we do directly.

Deductions reduce the taxable estate under their own separate rules: debts of the decedent, funeral and administration expenses, and charitable or marital bequests each need their own documentation trail. We organize that trail so the workpapers support exactly what is being claimed, since a deduction without support is the fastest way to draw a follow-up question from the IRS.

Not every estate needs to file at all. Form 706 is only required where the gross estate, plus adjusted taxable gifts, exceeds the basic exclusion amount in effect for the year of death, set annually by the IRS, currently in effect for decedents dying in 2026. We check the threshold that actually applies before scoping any engagement rather than assuming a filing is needed, and we also flag when a return should be filed anyway to elect portability of the unused exclusion for a surviving spouse, even where the estate is below the threshold.

Once the draft is complete, it goes to a credentialed signer, an enrolled agent or a CPA partner, who reviews it and files the return. We track the nine-month deadline against the date of death from the start of the engagement and flag the six-month extension option, filed on Form 4768, well before it becomes urgent.

What is included

An asset schedule organized by the specific Form 706 schedule each item belongs on, real estate, stock and bonds, mortgages and notes, insurance, jointly held property, and the others the form calls for. We gather and file valuation support against each schedule, coordinate with the appraiser the executor engages for anything that needs a professional valuation, and organize deduction documentation for debts, administration expenses, and charitable or marital bequests. The deliverable is a complete draft return with every schedule populated and supported, ready for a credentialed signer's review, plus a deadline tracker showing the nine-month filing date and any extension already filed.

How the process works

We start with a full asset inventory as of the date of death, pulled from the fiduciary accounting ledger where one exists or built from the executor's records where it does not. Each asset is sorted onto its correct schedule, then valuation requests go out, to an appraiser for real estate or a closely held business, to a brokerage or transfer agent for securities, to the insurer for policy proceeds. As valuations come back, we file them against the schedule and start building the deduction schedules in parallel. The complete draft, all schedules populated, goes to the credentialed signer for review, with enough runway before the nine-month deadline to accommodate their questions.

Who this is for

Executors of an estate large enough to be near or above the current filing threshold, and their attorneys, who need the accounting side of the return handled while the attorney manages probate and the appraiser handles valuations. It also fits estates that are below the threshold but where the executor wants to file anyway to elect portability for a surviving spouse, since that election has its own filing deadline separate from whether tax is actually owed. Accounting firms preparing 706s for their own clients also use this for the asset-schedule and workpaper-assembly capacity during a busy season.

Common problems we fix

Executors sometimes assume no return is needed because the estate seems modest, without checking adjusted taxable gifts made during the decedent's lifetime, which count toward the threshold too; we run that calculation before ruling a filing out. A second common problem is valuation support arriving in pieces, an appraisal here, a brokerage statement there, with nothing tying it to the specific schedule it supports; we build the schedule structure first so every valuation has a home the moment it arrives. A third is missing the portability election entirely on a below-threshold estate, which permanently forfeits the unused exclusion for the surviving spouse; we flag that election early, not after the deadline has passed.

Software and integrations

The asset inventory and supporting schedules are built in Excel, structured to mirror the form's own schedule lettering so nothing has to be re-sorted when the credentialed signer's tax software imports it. The return itself is prepared in Drake Tax or UltraTax CS by the signer's practice, and we hand off workpapers formatted to load directly into whichever software they use. Where fiduciary accounting already exists in QuickBooks Online or Xero, we pull the underlying ledger data straight from there rather than re-entering figures by hand.

What it costs

Form 706 support is scoped individually because the amount of work depends heavily on how many assets need valuation, how many schedules apply, and whether the estate includes a closely held business or out-of-state real property. See the published rate card for the tiers most estate work falls under; larger or more complex estates typically move to the custom-quote Scale tier. Your exact fee is confirmed in writing before the engagement starts, and the appraiser's own fee for any professional valuation is separate and billed directly by the appraiser.

How we measure quality

Every schedule has to tie to a source document, a valuation letter, a brokerage statement, a deed, not to an estimate. We reconcile the total gross estate figure against the fiduciary accounting ledger before the draft goes to the signer, so any gap between what the books show and what the return reports gets caught before review rather than during it. We also check the threshold calculation, including adjusted taxable gifts, at the start of every engagement and again before filing, since the applicable exclusion amount and the gift figures that count against it can both change between when scoping happens and when the return is actually due.

Timeline and onboarding

The nine-month clock starts on the date of death, not when an executor gets around to gathering records, so we start the asset inventory as early as possible even before probate is fully underway. Valuations, particularly for real estate or a closely held business, often take four to eight weeks to come back from an appraiser, so we flag any asset needing one in the first two weeks of the engagement. If the timeline is tight, we prepare the Form 4768 extension request early rather than waiting to see whether the deadline will actually be missed.

How we work

The process

  1. 1

    Build the date-of-death asset inventory

    Pulled from the fiduciary accounting ledger or built from the executor's records, sorted onto the schedule each asset belongs on.

  2. 2

    Request valuations

    Coordinated with the executor's appraiser for real estate or closely held interests, and pulled directly for publicly traded securities and cash.

  3. 3

    Check the filing threshold

    The gross estate plus adjusted taxable gifts is checked against the current basic exclusion amount before the engagement is scoped further.

  4. 4

    Build deduction schedules

    Debts, funeral and administration expenses, and charitable or marital bequests each documented against their own supporting records.

  5. 5

    Assemble the draft return

    All schedules populated and cross-checked against the asset inventory and the fiduciary accounting ledger.

  6. 6

    Route to the credentialed signer

    The complete draft goes to an enrolled agent or CPA partner for review, with time built in before the nine-month deadline.

  7. 7

    File or extend

    The signer files the return, or we prepare Form 4768 for the six-month extension if valuations or complex assets need more time.

Form 706 estate tax return preparation support

Common problems we fix

  • An estate is assumed to be below the threshold without checking lifetime taxable gifts
    We calculate adjusted taxable gifts against the current exclusion amount before ruling a filing out.
  • Valuation documents arrive with nothing tying them to a specific schedule
    We build the schedule structure first so every valuation has a defined place the moment it comes in.
  • A below-threshold estate misses the portability election for a surviving spouse
    We flag the election early in the engagement, since it has its own deadline separate from whether tax is owed.
  • Appraisals take longer than expected and the deadline gets tight
    We prepare a Form 4768 extension request early rather than waiting to see if the deadline slips.

By the numbers

$15,000,000

Basic exclusion amount for decedents dying in 2026

Source: irs.gov/instructions/i706, September 2026

9 months

Standard Form 706 filing deadline after date of death

Source: irs.gov/instructions/i706, September 2026

3 years

Minimum record retention period for the supporting workpapers

Source: irs.gov/businesses/small-businesses-self-employed/how-long-should-i-keep-records, September 2026

Pricing

Form 706 support is priced individually since the workload scales with the number of assets, whether a closely held business or out-of-state property is involved, and how many appraisals are needed. See /us/pricing for the tiers most fiduciary work falls under; larger estates typically move to the custom-quote Scale tier, and your fee is confirmed in writing once the estate's asset picture is known.

See pricing

Form 706 estate tax return preparation support

Glossary

Basic exclusion amount
The dollar threshold, adjusted for inflation, below which an estate generally owes no federal estate tax; $15,000,000 for decedents dying in 2026.
Adjusted taxable gifts
Lifetime gifts made by the decedent that count toward the estate tax threshold even though they were reported on a separate gift tax return.
Portability election
A Form 706 election that lets a surviving spouse use a deceased spouse's unused basic exclusion amount, available only if the return is filed even when no tax is due.
Form 4768
The IRS form used to request a six-month extension of time to file Form 706, or to pay the estate tax.

Questions

Frequently asked questions: Form 706 estate tax return preparation support

Is Form 706 required for every estate?

No. It's required only where the gross estate plus adjusted taxable gifts exceeds the basic exclusion amount for the year of death set annually by the IRS for decedents dying in 2026, source: irs.gov/instructions/i706. We check that figure before scoping the work.

Do you value the assets on the estate tax return?

No. We coordinate with an appraiser or financial institution the executor engages for valuations and organize the results into the return's schedules; we pull direct figures only for cash and publicly traded securities.

How far in advance do you start on Form 706?

As soon as possible after the date of death, since the nine-month filing deadline runs from that date and valuations, especially for real estate or a closely held business, often take four to eight weeks to come back.

What if the estate is below the filing threshold?

A return may still be worth filing to elect portability, letting a surviving spouse use the decedent's unused exclusion amount. We flag that option even when no tax is owed.

Can you also handle a state estate tax return alongside the federal Form 706?

Where the estate has a filing obligation in a state with its own estate tax, we build those workpapers alongside the federal return, since several states set their own, lower thresholds.

What happens if we can't finish everything within nine months?

We prepare a Form 4768 extension request, which grants an automatic six-month extension of time to file, though any tax owed is still due by the original deadline unless the signer arranges otherwise.

Do you decide which deductions the estate can claim?

No. We organize the documentation, debt statements, funeral invoices, charitable bequest language, behind each deduction being claimed; the credentialed signer confirms what qualifies before the return is filed.

How does this connect to the fiduciary accounting you already do for the estate?

The asset inventory for Form 706 is built directly from the same ledger used for ongoing fiduciary accounting, so values and dates already tracked there don't need to be reconstructed separately.

Do you decide the value of estate assets?

No. We organize the valuations an appraiser or financial institution provides into the schedules Form 706 needs; we do not perform the appraisal ourselves.

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Next step

Talk to the team that would run your books

A short call covers your setup, your software and what a first month would look like. You get a written scope and price after it.

Need this in writing? Download a one to two page scope sheet for Form 706 estate tax return preparation support: what is included, the process, and where pricing lives.

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