Montana Estate Tax Guide vs. Hiring a CPA: Which Is Right for Your Estate?

If you are deciding between a Montana estate tax guide and hiring a CPA after a death in Montana, here is the short answer: for straightforward estates where the decedent did not own a business, did not hold assets in multiple states, and was not relocating community property from California or another community property jurisdiction, a structured guide handles the full sequence of filings at a fraction of the cost. The exception is when the estate generates complex income across multiple entities or when you need someone to sign off on the numbers under professional liability — those cases genuinely warrant a CPA. For the vast majority of Montana estates, the real problem is not calculation complexity; it is knowing which forms exist, what order to file them in, and what the current Montana-specific rules actually say.

Montana eliminated its state estate tax for deaths occurring after December 31, 2004, and its inheritance tax for deaths after December 31, 2000. That eliminates the most feared tax obligation immediately. But the actual tax filing burden on a Montana executor is still substantial: the decedent's final individual income tax return (Form 2), the Montana fiduciary income tax return (Form FID-3) if the estate earns income during administration, and potentially federal Form 706 if the estate is large enough or if the executor needs to elect portability for a surviving spouse. A CPA can handle all of these. So can a well-organized executor who understands what each form requires — and knows that Montana's 2024 FID-3 overhaul broke the templates most CPAs and tax software relied on in prior years.

Side-by-Side Comparison

Who a Montana Estate Tax Guide Is For

• Executors and personal representatives handling their first Montana estate with no prior experience
• Surviving spouses who received a 1099 after the date of death and do not understand why the estate owes income taxes when Montana has no estate tax
• DIY executors trying to avoid attorney and CPA fees after Montana removed statutory percentage caps on professional fees in 2019, creating an open-ended billing environment
• Personal representatives dealing with an estate under $100,000 who want to confirm whether the small estate affidavit bypasses all filing requirements (it does not — tax filings still apply)
• Executors who need to know whether to file Form 706 for portability even though no federal estate tax is owed
• Out-of-state adult children managing Montana probate remotely who cannot easily meet with a local CPA

Who a Montana Estate Tax Guide Is NOT For

• Executors managing an estate where the decedent owned a working ranch, farm, or business requiring professional valuation for Form 706
• Families where both spouses previously lived in a community property state such as California, Washington, or Texas and relocated to Montana — the double step-up in basis calculation under the Uniform Disposition of Community Property Rights at Death Act requires CPA-level arithmetic
• Estates where DPHHS has filed a Medicaid estate recovery claim that disputes the value of assets — a CPA cannot help here, but the guide explains the Undue Hardship Waiver process
• Any situation where the executor expects to be challenged on asset valuations used for the portability election on Form 706

The Real Cost Tradeoff

A Montana CPA or estate attorney typically charges between $200 and $400 per hour. The Montana Department of Revenue explicitly removed percentage caps on professional fees in 2019, replacing them with a "reasonable fee" standard — meaning there is no statutory ceiling on what a professional can charge. A routine engagement to prepare the final Form 2, the fiduciary Form FID-3, and evaluate portability commonly runs $1,500 to $3,000. Complex estates with business interests exceed $5,000 before attorney time is added.

The tax forms themselves are free from the Montana Department of Revenue. The problem is not the cost of the forms — it is that the forms do not tell you:

• Which ones actually apply to your estate
• That the FID-3 underwent a complete Schedule I and Worksheet I overhaul in 2024 that eliminated the federal tax deduction and that commercial software is still miscalculating
• That distributing estate assets before the four-month creditor window closes triggers personal liability for the executor — a risk the CPA's engagement letter will not cover
• That the small estate affidavit threshold doubled from $50,000 to $100,000 in 2023 via Senate Bill 286, potentially eliminating probate court entirely for your estate

A guide that maps all of these into one sequential system lets the executor handle the forms, the deadlines, and the filing dependencies — and then engage a CPA only for the genuinely complex pieces, rather than paying professional hourly rates to sort forms that any organized executor can handle alone.

The 2024 FID-3 Problem Specifically

The Montana fiduciary income tax return (Form FID-3) was overhauled for tax year 2024 in ways that matter enormously for this comparison. The overhaul:

• Eliminated the deduction for federal income taxes paid, completely misaligning state and federal liability calculations
• Required a completely redesigned Schedule I and Worksheet I to determine Montana-specific additions and subtractions
• Changed how those amounts are allocated across beneficiaries' Schedule K-1 forms
• Introduced new ordinary income brackets (4.7% under $21,100; 5.9% above) and capital gains rates (3.0%–4.1%) that are different from prior years

The critical issue: many commercial tax software programs were not updated to reflect these Montana-specific changes. An executor relying on TurboTax or H&R Block for the FID-3 risks filing incorrect state tax calculations — the same risk exists if a CPA uses outdated software templates without manually verifying the Montana-specific adjustments.

A guide that explicitly covers the 2024 overhaul is more useful than either a generic software solution or a CPA who does not specialize in Montana fiduciary returns.

The Portability Blind Spot

One area where neither a guide nor a general CPA automatically fills the gap: proactively recommending a portability election when no federal estate tax is owed. The 2025 federal estate tax exemption is $13.99 million per person ($15 million in 2026). Most Montana estates fall well below this. But for a surviving spouse, failing to elect portability means losing the deceased spouse's unused exemption — potentially losing up to $13.99 million of future estate tax shelter.

Filing Form 706 solely to elect portability must happen within nine months of death (or up to five years under Revenue Procedure 2022-32 for late elections). A general CPA hired only to file the Form 2 and FID-3 may not flag this at all. A comprehensive estate tax guide explains the portability election explicitly — including the simplified valuation method available when filing solely for portability.

The Montana Final Tax & Estate Tax Guide Approach

The Montana Final Tax & Estate Tax Guide is structured as a Tax Compliance Sequencer — it maps every Montana tax obligation in filing order, with deadlines, forms, and dependencies explicit. Rather than explaining what each form is in isolation, it tells you which triggers activate each form, what happens if you file them out of sequence, and where the 2024 changes require manual verification beyond what software produces.

It covers the complete sequence from Day 1 (securing assets, ordering death certificates at $16 per copy from DPHHS, checking the End-of-Life Registry) through the four-month creditor window, the final distribution, and closing the estate — including the tax steps most executors miss because no agency explains how their requirements connect to the others.

Frequently Asked Questions

Do I need a CPA to file Montana estate taxes?

For most Montana estates, no. Montana has no state estate or inheritance tax for deaths after 2004. The required filings are the decedent's final Form 2, and Form FID-3 if the estate earned income. Both are state income tax returns that a competent, organized executor can file using a Montana-specific guide covering the 2024 changes. A CPA is warranted when the estate has business assets, multi-state holdings, or community property complications.

How much does a CPA charge for Montana estate tax returns?

Montana CPAs typically charge $200–$400 per hour for estate tax work. A complete engagement covering the final Form 2, the FID-3, and a portability evaluation commonly runs $1,500–$3,000. Because Montana removed statutory caps on professional fees in 2019, there is no ceiling, and complex estates frequently exceed these estimates.

What is the Montana FID-3 and who has to file it?

Form FID-3 is Montana's fiduciary income tax return for estates and trusts. An estate must file it if it has a federal Form 1041 filing requirement and has positive Montana taxable income during the administration period — meaning the estate earned bank interest, rental income, dividends, or capital gains from selling estate property before assets were distributed to heirs. The 2024 overhaul significantly changed how Montana taxable income is calculated.

Can I use TurboTax to file the Montana FID-3?

TurboTax and H&R Block handle federal Form 1041 but have had documented issues keeping pace with Montana's 2024 FID-3 overhaul — specifically the removal of the federal tax deduction and the redesigned Schedule I. If you use tax software, the Montana-specific calculations in Schedule I and Worksheet I must be manually verified against the current Department of Revenue instructions.

Is portability automatic in Montana?

No. Portability of a deceased spouse's unused federal estate tax exemption requires filing IRS Form 706 specifically to make the election. It is not automatic, and it does not happen through any state form. The election must be made within nine months of death, or within five years under Revenue Procedure 2022-32 for late elections on estates not otherwise required to file.

What if the estate is under $100,000 — do I still have to file taxes?

Yes. The $100,000 small estate affidavit threshold (updated from $50,000 by the 2023 Legislature) determines whether you can bypass probate court — it does not eliminate tax filing obligations. The final income tax return for the decedent and the fiduciary return if the estate earned income are required regardless of estate size.

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