Corporate Tax M&A, Divestiture Structuring & IRC Section 355(e)
Reverse Morris Trust >50% Tax-Free Spin-Merge Formula
Calculate Reverse Morris Trust (RMT) SpinCo Contributed Equity (EV - Leveraged Cash Distribution), Combined MergeCo Equity Value, Parent Shareholder Pro-Forma Ownership Share, and IRC Section 355(e) / Tax-Basis Qualification.
Clear both the >50.0% Section 355(e) ownership hurdle and tax-basis boot cap in Reverse Morris Trusts!
In a tax-free Reverse Morris Trust (RMT) divestiture, a corporate Parent spins off a subsidiary (SpinCo) to its shareholders and immediately merges SpinCo into a smaller public strategic partner (MergeCo)! To avoid corporate-level Section 355(e) "anti-Morris Trust" tax on the entire built-in gain, Parent’s shareholders MUST receive STRICTLY MORE THAN 50.0% (> 0.5000) of both voting power and equity value of Combined MergeCo: SpinCo_Equity = SpinCo_EV - Leveraged_Cash_Boot_to_Parent must exceed MergeCo_Standalone_Equity! Simultaneously, to keep Parent’s pre-spin leveraged cash distribution tax-free without Section 357(c)/361 boot recognition, Leveraged_Cash_Boot cannot exceed Parent’s Tax Basis in SpinCo (unless purged via qualified creditor debt-for-debt exchange)!
Verify on a Healthcare Spin-Merge—SpinCo_Enterprise_Value = $1,500.00M (B2), Leveraged_Cash_Distribution_to_Parent = $300.00M (B3 -> SpinCo Contributed Equity = $1,200.00M in E2), MergeCo_Standalone_Equity_Value = $1,000.00M (B4 -> Combined MergeCo Equity = $2,200.00M in E3), and Parent_Tax_Basis_in_SpinCo = $350.00M (B5): Parent Shareholders’ Pro-Forma Ownership is 1,200 / 2,200 = 0.5455 (54.55% > 50.0% in E4), and Qualification Gate E5 confirms "Qualifies: Tax-Free Reverse Morris Trust"!
| Reverse Morris Trust Metric ($1,500M EV, $300M Cash Boot, $1,000M MergeCo, $350M Basis) | Formula | Verified Output |
|---|---|---|
| SpinCo Contributed Equity ($M) | SpinCo_EV - Leveraged_Boot_to_Parent | $1,200.00M ($900.00M @ $600M Boot) |
| Combined MergeCo Equity ($M) | SpinCo_Equity + MergeCo_Equity | $2,200.00M |
| Parent Shareholder Ownership | SpinCo_Equity / Combined_MergeCo_Equity | 0.5455 (0.4737 @ $600M Boot) |
| IRC Sec 355(e) & Basis Gate | Ownership > 50% AND Boot <= Tax_Basis | Qualifies: Tax-Free Reverse Morris Trust |
Reverse Morris Trust Ownership & Boot-Basis Qualification Formula
Validate SpinCo_EV > Leveraged_Boot >= 0, MergeCo_Equity > 0, and Tax_Basis >= 0!
=LET(ev_s, B2, bt_d, B3, eq_m, B4, tx_b, B5, IF(OR(ev_s <= 0, bt_d < 0, ev_s <= bt_d, eq_m <= 0, tx_b < 0), "Invalid RMT Structure Input", LET(eq_s, ev_s - bt_d, ow_p, eq_s / (eq_s + eq_m), IF(ow_p <= 0.5, "Taxable Spin: Fails >50% RMT Ownership", IF(bt_d > tx_b, "Partial Boot Tax: Debt Exceeds Basis", "Qualifies: Tax-Free Reverse Morris Trust")))))Over-Leveraged SpinCo Dividend Trap ($600M Boot vs $400M Basis Breach)
Raise Leveraged_Boot B3 to $600.00M: SpinCo Equity drops to $900M (47.37% <= 50% in E4), flipping E5 to "Taxable Spin: Fails >50% RMT Ownership"! Set B3 = $400.00M (52.38% ownership > 50%, but > $350M basis): E5 flags "Partial Boot Tax: Debt Exceeds Basis"!
=IF(ISTEXT(E2), E2, ROUND(E2 / E3, 4))Try the example
Use the original values or change them to test your understanding.