S6166_Paragraph
(h) - Section 6166(h) - Election on a Deficiency

Section 6166(h) - Example 2 

Example 1 Modified - Non-§6166 Asset Values Increased by $1,400,000

Feb-17-2016Date of death
Nov-17-2016Estate tax return due date and the return filing date. The return reports a taxable estate of $5,124,400 and zero estate tax due. A closely held business is included in the gross estate at a value of $3,000,000, but neither a §6166 election nor a protective §6166 election is filed with the return. (See Example 1.)
Apr-26-2018An IRS field examination is completed. The value of the closely held business interest is increased by $2,500,000, Schedule B assets (non-6166) are increased by $1,400,000, and a new Schedule J deduction of $24,652.73 deductible interest is added. The deficiency is $1,419,898.91. The Estate agrees to the proposed deficiency by signing a waiver, Form 890. The Estate also files a §6166(h) election for the deficiency with the examining IRS Estate Tax Attorney and submits a catch-up payment to the Attorney to bring the account current under the §6166(a) election (made via the §6166(h) election) as of that date. 
 The estate is not subject to any accuracy-related penalty under §6662.
 The 1st anniversary date under the §6166(a) election was Nov-17-2017, when interest only was due (the 1st installment of tax will be due Nov-17-2021).
 The catch-up payments due on Apr-26-2018 are:
  the non-deferred tax, plus interest at R% thereon calculated from the return due date of Nov-17-2016 to Apr-26-2018;
  the special-rate interest on deferred tax that would have been due on the 1st anniversary date of Nov-17-2017; and,
  interest at R% on the unpaid special-rate interest due on the 1st anniversary date, calculated from the §6166(a) interest payment due date of Nov-17-2017 through Apr-26-2018.
  additional interest at R% on the unpaid non-deferred tax, calculated from Nov-17-2017 through Apr-26-2018.
  additional interest at R% on the unpaid R% interest accrued on the non-deferred tax, calculated from Nov-17-2017 through Apr-26-2018.
THIS EXAMPLE HAS SEVERAL COMPLICATING FACTORS
1The taxable estate on the original return was $5,124,400, which is $325,600 below the 2016 applicable exclusion amount of $5,450,000. The first $325,600 of an increase in taxable value will not generate any deficiency.
2The §6166(a)(2) ratio for determining the maximum amount of tax eligible for payment in installments on the original return was 58.5434%, but nothing was deferrable because the tax was zero. As soon as a deficiency results, even from an increase in non-§6166 asset values, tax would have been deferrable had a protective election been filed.
3Interest is interrelated with the Federal estate tax.
4The deficiency must be allocated between the amount attributable to the increase in the closely held business value (if any) and the amount(s) attributable to increases in other asset values or decreases in estate tax deductions or credits, which combine to generate the deficiency.
5Two computations could be run - one with just the adjustment to the §6166 closely held business value, and another without the §6166 adjustment but with all of the other adjustments. The results could be compared. However, the sum of those two "deficiencies" does not equal the actual deficiency because the first $325,600 increase in taxable value in each computation does not generate any tax; this must occur only once. Furthermore, the sum of the respective Schedule J interest deduction amounts does not match the figure in the actual deficiency computation. Convoluted computations are required to reconcile the deficiency attributable to this $325,600 gap in taxable asset value.
6The most equitable method of determining the amount of the deficiency attributable to the closely held business seems to be to apportion the deficiency between the increase in value of the closely held business and the increase in value of the other estate assets. This also implicitly apportions the interest deduction. 
7In Example 1 the deficiency was $865,442.30, all of which was attributable to the closely held business interest, 72.1368% of which qualified for the §6166(h) election after application of the §6166(a)(2) limitation. In Example 2 the deficiency is $1,419,898.91, the §6166(a)(2) ratio for the maximum amount of tax payable in installments is 60.9459%, and the maximum amount of tax eligible for payment in installments is $865,370.17. 
8The portion of the deficiency attributable to the increase in the value of the closely held business is $910,191.61. The amount of the deficiency eligible for payment in installments is capped by §6166(a)(2) at $865,370.17.

Section 6166(h) - Example 2

Report of Estate Tax Examination Changes
Form 1273
Estate of:    Decedent                                        SSN: 999-99-9999V                                D/D: Feb-17-2016
1Tentative Taxable Estate Shown on Return or Previously Adjusted5,124,400.00
2Increase/Decrease in Tentative Taxable Estate3,875,347.27
3aTentative Taxable Estate as Corrected (Line 1 plus/minus Line 2)8,999,747.27
  Shown on Return/ As Previously AssessedAs Corrected
3bState Death Tax Deduction0.000.00
3cTaxable Estate as Corrected (Line 3a - Line 3b)5,124,400.008,999,747.27
4Adjusted taxable gifts0.000.00
5Total5,124,400.008,999,747.27
6Tentative Tax1,995,560.003,545,698.91
7Aggregate Gift Tax Payable (After Dec. 31, 1976)0.000.00
8Tax Before Unified Credit (Line 6 - Line 7)1,995,560.003,545,698.91
9aBasic Exclusion Amount5,450,000.005,450,000.00
9bDeceased Spousal Unused Exclusion (DSUE)0.000.00
9cApplicable Exclusion Amount (Line 9a + Line 9b)5,450,000.005,450,000.00
9dApplicable Credit Amount (From Table A, using Line 9c)2,125,800.002,125,800.00
10Adjustment to Unified Credit0.000.00
11Allowable Applicable Credit Amount2,125,800.002,125,800.00
12Tax Before SDTC (Line 8 - Line 11)*Cannot be < 00.001,419,898.91
13State Death Tax Credit0.000.00
 Tentatively Allowed  
 Submit Evidence by  
14Net Tax Post State Death Tax Credit (Line 12 - Line 13)0.001,419,898.91
15Gift Tax Credit (Pre-1977 Gifts)0.000.00
16Foreign Death Tax Credit (Statutory)0.000.00
17Prior Transfer Credit0.000.00
18Foreign Death Tax Credit (Treaty)/Canadian Marital Credit0.000.00
19Total Credits (Sum of Lines 15 through 18)0.000.00
20Net Estate Tax Payable0.001,419,898.91
21Generation-Skipping Transfer Taxes (Schedule R, Part 2, Line 12)0.000.00
22Increased Estate Tax (Section 4980A, Schedule S)0.000.00
23Total Federal Estate Tax (Sum of Lines 20 through 22)0.001,419,898.91
24Total Transfer Tax Previously Assessed0.00
25Total Transfer Tax Increase/Decrease (Line 23 - Line 24)0.00
26Penalties Previously Assessed - Code(s)0.00
27Penalties as Corrected - Code(s)0.00
28Net Penalties Increase/Decrease (Line 27 - Line 28)0.00
29Net Tax and Penalties Payable Increase/Decrease (Line 25 + Line 28)1,419,898.91

Section 6166(h) - Example 2

Line Adjustment - Estate Tax
Form 6180
Estate of:    Decedent                                        SSN: 999-99-9999V                                D/D: Feb-17-2016
 Shown on Return/ As Previously AssessedChangeAs Corrected
1Schedule A - Real Estate0.000.000.00
2Schedule B - Stocks and Bonds1,000,000.001,400,000.002,400,000.00
3Schedule C - Mortgages, Notes, and Cash500,000.000.00500,000.00
4Schedule D - Life Insurance1,200,000.000.001,200,000.00
5Schedule E - Jointly Owned Property0.000.000.00
6Schedule F - Other Miscellaneous Property3,000,000.002,500,000.005,500,000.00
7Schedule G - Transfers During Decedent's Life0.000.000.00
8Schedule H - Powers of Appointment0.000.000.00
9Schedule I - Annuities0.000.000.00
10Gross estate5,700,000.003,900,000.009,600,000.00
11Schedule U - Qualified Conservation Easement Exclusion0.000.000.00
12Gross Estate less exclusion5,700,000.003,900,000.009,600,000.00
13Schedule J - Funeral and Administration Expenses450,000.0024,652.73474,652.73
14Schedule K - Debts of Decedent125,600.000.00125,600.00
15Schedule K - Mortgages0.000.000.00
16Total of Schedules J and K575,600.0024,652.73600,252.73
17Allowable deductions from Schedules J and K575,600.0024,652.73600,252.73
18Schedule L - Net Losses During Administration0.000.000.00
19Schedule L - Expenses on Property Not Subject to Claims0.000.000.00
20Total - Lines 17, 18, and 19575,600.0024,652.73600,252.73
21Schedule M - Marital Deduction0.000.000.00
22Schedule O - Charitable Deduction0.000.000.00
23ESOP Deduction0.000.000.00
24Schedule T - QFOBI Deduction0.000.000.00
25Total allowable deductions575,600.0024,652.73600,252.73
26Tentative taxable estate5,124,400.003,875,347.278,999,747.27

Section 6166(h) - Example 2

Form 886-A  -   EXPLANATION OF ITEMS
Schedule B - Stocks and Bonds
  Shown on Return/ As Previously AssessedAs Corrected
3Value of publicly-traded stock in Business D275,000.00500,000.00
6Value of publicly-traded stock in Business G400,000.00600,000.00
14Value of publicly-traded stock in Business X325,000.00550,000.00
16Additional asset0.00750,000.00
 Total of these Items1,000,000.002,400,000.00
 Shown on Return1,000.000.00
 Change to Schedule1,400,000.00

Section 6166(h) - Example 2

Form 886-A  -   EXPLANATION OF ITEMS
Schedule F - Other Miscellaneous Property
  Shown on Return/ As Previously AssessedAs Corrected
1Section 6166 business interest3,000,000.005,500,000.00
    
    
 Total of these Items3,000.000.005,500,000.00
 Shown on Return3,000.000.00
 Change to Schedule2,500,000.00

Section 6166(h) - Example 2

Form 886-A  -   EXPLANATION OF ITEMS
Schedule J - Funeral and Administrative Expenses
  Shown on Return/ As Previously AssessedAs Corrected
 B-4(d)  Interest on Federal estate tax0.0024,652.73
    
    
 Total of these Items0.0024,652.73
 Shown on Return0.00
 Change to Schedule24,652.73
Section 2053(c)(1)(D) prohibits a deduction for interest accrued on tax deferred under §6166. In this example, the total interest accrued on the catch-up payment date of Apr-26-2018 is $47,157.16, of which $24,652.73 is R% interest accrued on past-due amounts; the balance is non-deductible interest accrued on tax deferred under §6166 ($15,669.10 accrued through Nov-17-2017, after which it was past-due, and $6,835.33 accrued from Nov-17-2017 through the catch-up payment date of Apr-26-2018).
Section 6166(h) - Example 2
§6166(b)(6) Adjusted Gross Estate Computation
Gross estate 9,600,000.00
Schedule J - Funeral and Administrative Expenses  
 A.Funeral expenses25,000.00 
 B.Administration expenses449,652.73 
 Total Schedule J474,652.73 
Schedule K - Debts of Decedent125,600.00 
Schedule K - Mortgages and Liens0.00 
 Total Schedule K125,600.00 
Total Schedules J and K debts and expenses600,252.73 
Allowable amount of deductions600,252.73 
Schedule L - Net Losses0.00 
Schedule L - Expenses on property not subject to claims0.00 
Total Schedules J, K, and L debts and expenses600,252.73 
Adjustment for expenses incurred after the return was filed(24,652.73) 
Adjusted Schedules J, K, and L debts and expenses575,600.00575,600.00
Section 6166(b)(6) adjusted gross estate 9,024,400.00
Section 6166(h) - Example 2
§6166(a)(2) Ratio Computation
Section 6166 business value, divided by5,500,000.00
Section 6166(b)(6) adjusted gross estate, yields9,024,400.00
Section 6166(a)(2) ratio for the maximum amount of tax which may be paid in installments0.609459
Section 6166(h) - Example 2
§6166(a)(2) Maximum Amount of Tax Eligible For Payable in Installments
Total deficiency1,419,898.91
Section 6166(a)(2) ratio expressed as a percentage60.9459%
Maximum amount of deficiency which may be paid in installments (aka "the cap")865,370.17
Apportionment of the Deficiency to the Closely Held Business Value
 
1,400,000Increase in value of non-§6166 assets
2,500,000Increase in value of §6166 assets
3,900,000Total increase in asset values
Apportionment
1,400,000x1,419,898.91=509,707.30
3,900,000
2,500,000x1,419,898.91=910,191.61
3,900,000
 1,419,898.91
Portion of the Deficiency Payable in Installments
1.  §6166(a)(2) maximum amount of tax which may be paid in installments865,370.17
2.  Portion of the deficiency attributable to the closely held business910,191.61
Maximum amount of tax which may be paid in installments under the §6166(h) election (the lesser of Line 1 or Line 2)865,370.17
NOTE: This is the "Short Method" of calculating the apportionment of the deficiency to the closely held business interest. It ignores the effects of the interrelated interest deduction. A "Long Method" calculation would yield $912,026.79 for the portion of the deficiency attributable to the closely held business interest. (See Section 6166(h) Example 3 for an illustration of the Long Method.) In this example the distinction is moot because the §6166(a)(2) ratio limits the amount of tax which may be paid in installments to a lesser number in any event.
Section 6166(h) Example 2
§6166(a) Catch-Up Payment Due Apr-26-2018
Non-deferred tax due Nov-17-2016 554,528.74
Amounts due on the 1st anniversary date of Nov-17-2017  
Interest at R% on the non-deferred tax 16,881.56
Interest at 2% on the first $592,000 of deferred tax11,954.88 
Interest at 45% of R% on the $273,370.17 balance of deferred tax3,714.2215,669.10
Additional amounts due on Apr-26-2018  
Additional interest at R% on the non-deferred tax 7,340.29
Interest at R% on the past-due interest of $16,881.56 223.46
Interest at R% on the past-due interest on deferred tax of $15,669.10 207.41
Total catch-up payment due Apr-26-2018 594,850.56
Allowable interest deduction on Schedule J  
Interest at R% on the non-deferred tax16,881.56 
Additional interest at R% on the non-deferred tax7,340.29 
Interest at R% on the past-due interest of $16,881.56223.46 
Interest at R% on the past-due interest on deferred tax of $15,669.10207.41 
Allowable interest deduction24,652.73 
NOTE: R% interest means the regular underpayment interest rate(s) in effect during each interest computation period, which can vary from period to period or within a single period. Interest rates are set quarterly pursuant to §6621.