Wisconsin Estate Tax Calculator

Pri Geens

Pri Geens

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Wisconsin Estate Tax Calculator

Estimate the federal estate tax on a Wisconsin decedent’s estate and confirm that Wisconsin itself charges nothing. Wisconsin repealed its estate tax for deaths on or after January 1, 2005 (VERIFY) and has no inheritance tax and no gift tax, so for 2024-2026 deaths Wisconsin tax is $0. Three modes: estimate the tax, test a larger estate, or solve for the years of gifting needed to reach zero. Fields marked * are required; Calculate names any left empty.

Wisconsin rules this calculator enforces: NO state estate tax for recent deaths (Wisconsin estate tax was repealed for deaths on or after January 1, 2005; VERIFY exact date); no Wisconsin estate tax return is filed; no inheritance tax; no gift tax; COMMUNITY PROPERTY STATE (this tool does NOT halve community property or apply a double step-up); spousal elective share based on years of marriage (up to 50%; this tool approximates it as one-half of the net estate; VERIFY); simplified administration where the estate value is $50,000 or less (Wisconsin small estate; VERIFY); probate venue in the Circuit Court of the county of domicile (72 counties).
Federal: unified estate and gift schedule topping at 40%; basic exclusion $13,610,000 (2024), $13,990,000 (2025), $15,000,000 (2026); federal portability (DSUE) allowed; unlimited marital and charitable deductions; GST 40%.
Sets the federal exclusion and annual gift exclusion. Wisconsin tax is $0 for all three years.
Circuit Court venue; no Wisconsin estate tax applies.Required. Please choose a Wisconsin county.
Select a county to see the Circuit Court venue, the small-estate threshold, and the federal exclusion for the selected year.

Assets at date of death

Home, land, rental buildings at fair market value.Enter 0 or a positive amount.
Checking, savings, CDs, stocks, bonds, mutual funds.Enter 0 or a positive amount.
IRAs, 401(k)s, 403(b)s, pensions, annuity contracts.Enter 0 or a positive amount.
Death benefit includible when the decedent held any incident of ownership.Enter 0 or a positive amount.
Closely held business, vehicles, equipment, receivables, trusts includible in the estate.Enter 0 or a positive amount.
Wisconsin is a COMMUNITY PROPERTY STATE. This tool does NOT halve community property or apply a double step-up.

Debts and administration costs

Deductible obligations of the decedent.Enter 0 or a positive amount.
Deductible when paid by the estate.Enter 0 or a positive amount.
Deductible administration expense.Enter a percentage between 0 and 25.
Filing fees, publication, appraisal costs.Enter 0 or a positive amount.
Deductible if not compensated by insurance.Enter 0 or a positive amount.

Bequests and marital status

Unlimited marital deduction for a citizen spouse or a QDOT (federal).Enter 0 or a positive amount.
Unlimited federal deduction for qualifying charities.Enter 0 or a positive amount.

Prior gifts, portability and GST

Post-1976 taxable gifts; they consume the federal exclusion. Wisconsin has no gift tax.Enter 0 or a positive amount.
Federal portability only; Wisconsin has no state exclusion to port.Enter 0 or a positive amount.
Federal GST at a flat 40% on Form 706 Schedule R.Enter 0 or a positive amount.
Equals the federal basic exclusion for the year of death.Enter 0 or a positive amount.

Gifting plan

Required in gifting mode. Annual-exclusion gifts are not taxable gifts.Required in gifting mode. Enter 1 or more donees.
Amounts above the annual exclusion become taxable gifts.Enter 0 or a positive amount.
Gifts carry over basis and lose the step-up at death.Enter 0 or a positive amount.
If the tax cannot be eliminated inside this horizon, the calculator says so.Enter a whole number between 1 and 200.

How it works

  • Wisconsin has no estate or inheritance tax. Wisconsin repealed its estate tax for deaths on or after January 1, 2005 (VERIFY exact date). There is no Wisconsin inheritance tax for recent deaths and no gift tax, so only federal transfer taxes apply.
  • No portability (Wisconsin). Wisconsin has no state exclusion to port; only the federal DSUE ports.
  • Community property state. Wisconsin is a community property state; this tool does NOT halve community property or apply a double step-up.
  • Federal estate tax applies above the federal basic exclusion using the unified 18% to 40% schedule; the federal GST applies at 40% to direct skips above the allocated GST exemption.
  • Spousal elective share. Wisconsin elective share is based on years of marriage (up to 50%); this tool approximates it as one-half of the net estate (VERIFY).
  • Small estates. Simplified administration is available where the estate value is $50,000 or less; verify the current figure.
  • Binding factor names what controls the result: the federal exclusion, the federal unified schedule, or the GST.
  • Gifting mode uses the guarded bisection solver (60 expansions, 90 iterations, rounded up). Because only the federal exclusion applies, the solver targets that single exclusion.
  • Gifting is not free. Carryover basis loses the step-up; the deferred gain is netted against the tax saved.

Sources

  • Former Wisconsin estate tax (repealed for deaths on or after January 1, 2005; VERIFY exact date); no Wisconsin inheritance tax or gift tax.
  • Wisconsin elective share based on years of marriage (up to 50%; VERIFY); Wisconsin small estate simplified administration ($50,000; VERIFY); probate venue in the Circuit Court of the county of domicile (72 counties).
  • IRC chapter 11 unified schedule and exclusion ($13,610,000 / $13,990,000 / $15,000,000 for 2024 / 2025 / 2026); IRC 2010 portability; IRC 2042 life insurance inclusion; IRC 2055 charitable deduction; IRC chapter 13 GST at 40%; IRC 1014 step-up and 1015 carryover basis.
  • IRS Form 706 and Form 4768 instructions (9-month deadline, 6-month filing extension).

Test cases

TC1 – Below federal exclusion. Milwaukee (Milwaukee), 2025, single. Real 1,000,000; financial 500,000; retirement 300,000; debts 100,000; funeral 10,000; atty 2%; court 400.
Gross 1,800,000; admin 34,400; deductions 144,400; net estate 1,655,600; TE 1,655,600 below 13,990,000 federal. Federal $0, WI $0, TOTAL $0. Federal headroom 12,334,400.
TC2 – Above federal exclusion. Milwaukee (Milwaukee), 2025, single. Real 2,000,000; financial 1,500,000; retirement 1,000,000; business 1,000,000; debts 300,000; funeral 20,000; atty 2%; court 400.
Gross 10,000,000; admin 194,400; deductions 494,400; net estate 9,505,600; TE 9,505,600 above 13,990,000 federal. FEDERAL 2,039,840. WI $0. TOTAL 2,039,840. Effective 10.26%.
TC3 – Above federal, marital + DSUE. Milwaukee (Milwaukee), 2025, married 20 years, citizen spouse, bequest 5,000,000, DSUE 1,000,000. Real 15,000,000; financial 7,000,000; life 3,000,000; debts 400,000; funeral 25,000; atty 2%; court 400.
Gross 24,000,000; admin 472,400; deductions 917,400; net estate 23,082,600; less marital 5,000,000 = TE 18,082,600. Federal exclusion 14,990,000; FEDERAL 1,237,040. WI $0. TOTAL 1,237,040. Effective 4.95%. No elective-share note (up to 50%; VERIFY).
TC4 – Gifting solver, 2026, maxYears 200. Milwaukee (Milwaukee), single. Real 8,000,000; financial 5,000,000; retirement 3,000,000; business 2,000,000; debts 300,000; funeral 20,000; atty 2%; court 400; 4 donees at 19,000.
Gross 20,000,000; admin 394,400; deductions 689,400; net estate 19,310,600; TE 19,310,600 above 15,000,000 federal. FEDERAL 1,724,240. WI $0. TOTAL 1,724,240. Solver must reach the federal exclusion 15,000,000: 76,000/yr requires 57 YEARS (removes 4,332,000 leaving TE 14,978,600), tax $0. Saved 1,724,240.
TC5 – Small estate. Milwaukee (Milwaukee), 2025, married 5 years, citizen spouse. Financial 20,000; retirement 4,000; debts 1,000; funeral 2,000; atty 2%; court 300.
Gross 24,000; admin 760; deductions 4,760; net estate 19,240; TE 19,240 below both exclusions. Federal $0, WI $0, TOTAL $0. Small estate available (estate 19,240 at or below 50,000). No elective-share note (up to 50%; VERIFY).

Estimates only. Not legal, tax or financial advice. The Wisconsin repeal date, elective share and small-estate figure are flagged for verification. Verify all figures with the Wisconsin Department of Revenue and federal rules before relying on them.

What Is a Wisconsin Estate Tax Calculator?

The Wisconsin Estate Tax Calculator estimates federal transfer taxes after adding estate assets, subtracting modeled deductions and bequests, adding earlier taxable gifts, and applying the selected federal exclusion plus any entered DSUE. Wisconsin estate and inheritance taxes remain $0 in the calculation, so the tax result comes from federal estate tax and any federal GST tax.

The calculator has three modes. Estate mode estimates total transfer tax on the entered estate. Headroom mode tests the estate profile and shows how much federal exemption remains. Gifting mode searches for the number of whole years of modeled annual-exclusion gifts needed to bring total calculated transfer tax to zero.

Year of deathFederal basic exclusion usedAnnual gift exclusion used
2024$13,610,000$18,000 per donee
2025$13,990,000$19,000 per donee
2026$15,000,000$19,000 per donee

How the Wisconsin Estate Tax Calculation Works

The calculator starts by adding five asset groups: real property, bank and brokerage accounts, retirement accounts and annuities, includible life insurance, and business interests or other property.

Gross Estate=Real Property+Financial Assets+Retirement+Life Insurance+Other Property\text{Gross Estate}=\text{Real Property}+\text{Financial Assets}+\text{Retirement}+\text{Life Insurance}+\text{Other Property}

Administration costs include an attorney and executor fee plus entered Circuit Court costs. Although the field label refers to a percentage of net estate, the code actually applies the percentage to gross estate minus debts, with that fee base floored at zero.

Administration Costs=max⁡(Gross Estate−Debts,0)×Fee %100+Court Costs\text{Administration Costs}=\max(\text{Gross Estate}-\text{Debts},0)\times\frac{\text{Fee \%}}{100}+\text{Court Costs}

The net estate is found after subtracting debts, funeral expenses, administration costs, and casualty or theft losses. A negative result is replaced with zero.

Net Estate=max⁡(Gross Estate−Debts−Funeral−Administration−Losses,0)\text{Net Estate}=\max(\text{Gross Estate}-\text{Debts}-\text{Funeral}-\text{Administration}-\text{Losses},0)

A marital deduction is used only when the decedent is marked married and the surviving spouse is a U.S. citizen or the bequest passes to a QDOT. The deduction cannot exceed the net estate. The charitable deduction is then limited to the amount remaining after the marital deduction.

In gifting mode, the calculator uses the smaller of the entered gift per donee and that year’s coded annual exclusion.

Gift Reduction=min⁡(Gift Per Donee,Annual Exclusion)×Donees×Years\text{Gift Reduction}=\min(\text{Gift Per Donee},\text{Annual Exclusion})\times\text{Donees}\times\text{Years}
Taxable Estate=max⁡(Net Estate−Marital Deduction−Charitable Deduction−Gift Reduction,0)\text{Taxable Estate}=\max(\text{Net Estate}-\text{Marital Deduction}-\text{Charitable Deduction}-\text{Gift Reduction},0)

Earlier taxable gifts are added to the taxable estate to create the federal tax base. Entered DSUE is added to the basic federal exclusion.

B=Taxable Estate+Earlier Taxable GiftsB=\text{Taxable Estate}+\text{Earlier Taxable Gifts}
E=Federal Basic Exclusion+DSUEE=\text{Federal Basic Exclusion}+\text{DSUE}

The calculator applies its progressive federal schedule only when the federal base exceeds the applicable exclusion. Let SF represent that coded 18% through 40% schedule.

Federal Estate Tax=max⁡(SF(B)−SF(E),0)\text{Federal Estate Tax}=\max\left(S_F(B)-S_F(E),0\right)

Wisconsin estate tax and inheritance tax are both set to zero. Federal GST tax is calculated separately from direct skips remaining after the entered GST exemption.

GST Tax=0.40×max⁡(Direct Skips−GST Exemption,0)\text{GST Tax}=0.40\times\max(\text{Direct Skips}-\text{GST Exemption},0)
Total Transfer Tax=Federal Estate Tax+GST Tax\text{Total Transfer Tax}=\text{Federal Estate Tax}+\text{GST Tax}

Worked Example

Suppose a hypothetical 2025 estate has $10,000,000 of real property, $5,000,000 of financial assets, and $5,000,000 of retirement assets. Gross estate is $20,000,000. Assume $300,000 of debts, $20,000 of funeral expenses, a 2% attorney and executor fee, and $400 of court costs.

The fee base is $19,700,000. A 2% fee is $394,000, and adding $400 of court costs gives $394,400 of administration costs. The resulting net estate is $19,285,600.

With no marital deduction, charitable deduction, prior gifts, DSUE, gifting reduction, or GST tax, the federal base is $19,285,600. The calculator’s 2025 exclusion is $13,990,000. Its federal schedule produces $7,660,040 of tentative tax and $5,541,800 of applicable credit. Federal estate tax is therefore $2,118,240. Wisconsin tax is $0, so total transfer tax is $2,118,240 and the effective rate is 10.59% of gross estate.

How to Use the Wisconsin Estate Tax Calculator

  1. Choose estate tax, larger-estate headroom, or years-of-gifting mode.
  2. Select the year of death: 2024, 2025, or 2026.
  3. Select the Wisconsin county of domicile used for the displayed Circuit Court venue.
  4. Enter real property, financial accounts, retirement assets, life insurance, and business or other property.
  5. Enter debts, funeral expenses, the attorney and executor fee percentage, court costs, and casualty or theft losses.
  6. Set marital status and, when relevant, spouse citizenship or QDOT status. Enter spousal and charitable bequests.
  7. Enter earlier taxable gifts, federal DSUE, direct skips, and any GST exemption allocated.
  8. For gifting analysis, enter the number of donees, gift per donee, unrealized gain, heirs’ long-term capital-gains rate, NIIT choice, and maximum years to test.
  9. Check the required acknowledgment and select the calculation button.

In estate mode, the main output is total transfer tax due. Headroom mode returns a verdict and displays remaining federal headroom and a tax-free ceiling. Gifting mode shows either the number of years needed, “None needed” when baseline tax is already zero, or a result stating that more than the selected maximum years would be required.

Important Assumptions and Result Details

The detailed results show the path from gross estate to estimated tax. Outputs include deductions, net estate, taxable estate, federal tentative tax and credit, federal estate tax, Wisconsin estate tax, Wisconsin inheritance tax, taxable direct skips, GST tax, total transfer tax, effective rate, marginal federal rate, and the calculator’s stated binding factor.

Federal Headroom and Tax-Free Ceiling

Federal headroom equals the applicable federal exclusion minus the federal base, floored at zero. The calculator adds that amount to gross estate to display its tax-free ceiling for the current estate profile.

Federal Headroom=max⁡(E−B,0)\text{Federal Headroom}=\max(E-B,0)
Tax-Free Ceiling=Gross Estate+Federal Headroom\text{Tax-Free Ceiling}=\text{Gross Estate}+\text{Federal Headroom}

The effective rate divides total transfer tax by gross estate. A zero gross estate produces a zero effective rate. Currency amounts are rounded to whole dollars for display, while the effective rate is displayed to two decimal places.

Effective Rate={Total Transfer TaxGross Estate,if Gross Estate>00,otherwise\text{Effective Rate}=\begin{cases}\frac{\text{Total Transfer Tax}}{\text{Gross Estate}},&\text{if Gross Estate}>0\\0,&\text{otherwise}\end{cases}

The displayed marginal federal rate is 40% whenever the federal base exceeds the applicable exclusion. Otherwise, it is 0%. This is the calculator’s display rule rather than a separate next-dollar calculation through every bracket.

Wisconsin and Community Property

The calculator treats Wisconsin estate tax and inheritance tax as $0 and states that the former estate tax was repealed for deaths on or after January 1, 2005. The interface explicitly marks that exact repeal date for verification.

The tool also identifies Wisconsin as a community property state, but it does not halve community property or apply a double step-up adjustment. Asset values entered by the user flow directly into the gross-estate calculation.

Small Estate and Spousal Elective Share

The calculator’s small-estate indicator compares a $50,000 coded threshold with financial accounts, retirement assets, life insurance, and business or other property. Real property is not included in this particular internal test. The calculator marks the $50,000 figure for verification.

Small-Estate Test Amount=Financial+Retirement+Life Insurance+Other Property\text{Small-Estate Test Amount}=\text{Financial}+\text{Retirement}+\text{Life Insurance}+\text{Other Property}

For a married decedent, the displayed elective-share estimate equals one-half of the calculated net estate. The calculator states that Wisconsin’s actual elective share is based on years of marriage and may differ, so this one-half calculation is explicitly an approximation marked for verification.

Gifting Solver and Projections

The gifting solver increases the testing period until it finds a zero-tax result or reaches the selected maximum horizon. It then performs a numerical search and rounds the answer upward to a whole year. The maximum-years input accepts values from 1 through 200.

The number-of-donees field is required in gifting mode, but zero is still accepted by the numeric range validation. With zero donees, the annual gifting reduction is zero.

The effective gift per donee is capped at the coded annual exclusion. Entering a larger gift does not automatically add the excess to earlier taxable gifts. Earlier taxable gifts come only from the separate prior-gifts field.

The calculator also displays tax remaining after one, two, and three years of gifting and cumulative tax saved after three years. Gifting reduces the modeled taxable estate, but it does not reduce the separate direct-skips input. A positive GST amount can therefore prevent the solver from reaching zero total transfer tax.

Unrealized Gain Input in This Calculator Version

The form accepts unrealized gain in gifted assets, a 0%, 15%, or 20% long-term capital-gains rate, and an optional 3.8% NIIT setting. However, the calculation result object does not carry the unrealized-gain value into the result-rendering calculation. As implemented, the displayed deferred-capital-gains cost resolves to $0 and the displayed net-benefit value also resolves to $0.

The “Net to other heirs” result is calculated as net estate minus the marital deduction, charitable deduction, and total transfer tax, floored at zero. The gifting reduction is not separately subtracted from this particular output.

Most monetary inputs accept values from $0 through $100,000,000. The attorney and executor fee accepts 0% through 25%. The donee count accepts 0 through 200. County selection and the acknowledgment are required before calculation.

This calculator provides an estimate based on user-entered assumptions and the logic implemented in the tool. Actual tax liability, filing requirements, probate procedures, deductions, gifting consequences, and spousal rights may differ. Several Wisconsin figures are specifically marked for verification, so the output should not be treated as legal, tax, or financial advice.

Estate Tax Calculators for All 50 U.S. States

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Frequently Asked Questions

Does this calculator charge Wisconsin estate tax?

No. Wisconsin estate tax is set to $0 in the calculator for all supported 2024 through 2026 death years. Wisconsin inheritance tax is also $0. The interface states that the former estate tax was repealed for deaths on or after January 1, 2005, while flagging that date for verification.

What federal estate tax exclusions does the calculator use?

The calculator uses $13,610,000 for 2024, $13,990,000 for 2025, and $15,000,000 for 2026. Entered DSUE from a predeceased spouse is added to the selected year’s basic exclusion before federal estate tax is calculated.

How does DSUE affect the Wisconsin calculation?

DSUE affects only the federal applicable exclusion. Wisconsin has no state estate-tax exclusion in this calculator because Wisconsin estate tax is set to zero. The result therefore describes state portability as not applicable.

How does the calculator handle a marital bequest?

A marital deduction is allowed when the decedent is marked married and the surviving spouse is a U.S. citizen or a non-citizen spouse’s bequest passes to a QDOT. The deduction cannot exceed the net estate. If those conditions are not met, the entered spousal bequest receives no modeled marital deduction.

How is federal GST tax calculated?

The calculator subtracts the entered GST exemption from direct skips to grandchildren or later generations. A negative result becomes zero. Any positive taxable direct-skip amount is multiplied by 40%, and that GST amount is added to federal estate tax when total transfer tax is calculated.

How does the calculator decide whether a small-estate option may be available?

It adds financial accounts, retirement assets, includible life insurance, and business or other property and compares the total with $50,000. Real property is excluded from this specific test. The calculator itself marks the $50,000 small-estate amount for verification.

Why might gifting not eliminate all transfer tax?

Annual-exclusion gifting reduces the calculator’s taxable estate, but it does not reduce the direct-skips amount used for GST tax. The plan can also fail when the annual gift reduction is too small to reach zero tax within the selected maximum number of years.

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