Private Letter Rulings & Other IRS Guidance
Persuasive windows into IRS reasoning.
4.1 · PLR 201248008 — Maturity Deferral + Obligor Substitution + Rate Change
The IRS concluded that modifying an installment obligation by "deferring the maturity date, substituting a new obligor, and altering the interest rate is not a disposition or satisfaction of an installment obligation within the meaning of §453B," relying on Rev. Rul. 68-419, 75-457, and 82-122.
The most direct modern confirmation that the cluster of changes an SIS involves — new obligor, possibly different rate, altered timing — does not trigger §453B gain. It shows the IRS continuing to apply 75-457/82-122 into the present era.
4.2 · PLR 201144005 — Price/Rate/Payment Modifications
Reducing the purchase price, reducing the interest rate, and modifying payment dates on an installment obligation was not a §453B disposition or satisfaction.
Further evidence that the IRS reads "material alteration of the seller's rights" narrowly. Supports the obligor-substitution pillar by showing even economic modifications survive §453B scrutiny.
4.3 · Non-Qualified Assignment PLRs (structured-settlement lineage)
Confirms that a properly documented non-qualified assignment avoids immediate taxation of the gross amount in the settlement/sale year, with payments taxed as received.
The SIS borrows the NQA technology from the structured-settlement industry. These rulings support the proposition that the assignment company's assumption of the payment obligation — funded by an annuity it owns — does not put the seller in receipt of the lump sum.
4.4 · GCM 36299 — General Counsel Memorandum on Obligor Substitution
Articulated the principle that no disposition occurs "as long as [the seller] possesses substantially the same rights he received in the original transaction" — a change in the identity of the obligor, standing alone, is immaterial.
The internal IRS reasoning underpinning 75-457. It frames the entire test the SIS satisfies: the seller's substantive rights, not the obligor's identity, are what matter.
4.5 · TAM 9853002 — §453A Threshold for Married Individuals
Married individuals are not aggregated for the §453A $5,000,000 obligation threshold; each spouse has a separate threshold.
A planning input for large SIS transactions — spreading obligations across spouses can keep each below the $5M line and avoid (or reduce) the §453A interest charge.
4.6 · ECC 202118016 — IRS Chief Counsel on the Monetized Structure
Addressed the abusive S. Crow Collateral Corporation monetized installment sale structure, articulating the IRS's view that it lacked economic substance.
Marks the boundary. It is directed at the monetized structure (loan-funded, no real deferral), not the SIS. Useful for advisors to demonstrate, by contrast, why a properly built SIS — with genuine deferral and no monetizing loan — falls outside the IRS's enforcement target.