Section 4204(a)(1)(B) offers the purchaser a choice the statute treats as perfectly equivalent: a surety bond from a § 412-acceptable corporate surety, or an amount held in escrow by a bank or similar institution satisfactory to the plan. Treasury management does not share the statute's indifference. The instruments have identical legal effect and radically different capital costs, and the correct choice is a computable function of the purchaser's cost of capital, credit profile, and appetite for the indemnity conversation.
The Capital Arithmetic
The escrow parks the full penal sum — cash or cash-equivalents — for five plan years, earning escrow-account returns while the operating business forgoes whatever those dollars would otherwise produce. For a purchaser whose capital earns its keep — funding acquisitions, inventory, equipment, or simply retiring acquisition debt priced well above deposit rates — the opportunity cost compounds annually across the term. The bond substitutes an annual premium measured in a small percentage of the penal sum for the capital itself. On an $850,000 penal sum, five years of escrowed capital at a meaningful spread between the purchaser's return on capital and escrow yield costs multiples of the cumulative bond premium. That spread is the whole analysis for most files: the wider the purchaser's internal return over deposit rates, the more decisively the bond wins.
Where the Escrow Genuinely Wins
Three profiles reverse the default. The credit-priced purchaser. Where post-closing leverage or history prices the bond high — or where the placement would require collateral approaching the penal sum anyway — the premium-plus-collateral cost converges on the escrow's, and the escrow's simplicity can carry the decision. The indemnity-averse structure. The bond travels with an indemnity agreement; the escrow travels with a deposit. A sponsor unwilling to extend any credit support beyond the opco, facing a surety unwilling to write the opco unsupported, may rationally prefer to fund the escrow and end the negotiation. The cash-rich strategic. A purchaser holding excess liquidity earning deposit rates loses little by escrowing it — though even here the escrow's administrative rigidity (release mechanics, successor-institution questions, the plan's satisfaction with the depositary) deserves weight. This desk prices both structures side by side on every file and recommends in writing, sometimes against its own premium. A recommendation that only ever points at the recommender's product is not a recommendation.
Hybrids and Sequences
The choice is not always binary or permanent. A partially collateralized bond — premium plus a collateral deposit well below the penal sum — occupies the middle of the spectrum and frequently dominates both endpoints for mid-credit purchasers, particularly with collateral-release triggers tied to deleveraging covenants. And the instruments can be sequenced: an escrow posted at a compressed closing (no underwriting timeline at all) and replaced by a bond in the following plan year once the post-closing financials support standard terms, releasing the capital for the remaining term. The plan's consent travels with any substitution, which is one more reason the fund-relationship posture described in our forms guide pays for itself.
The Plan's Perspective
Funds accept both instruments, but their counsel do not experience them identically. The escrow is cash the fund can see; the bond is a promise the fund must evaluate, which is why fund counsel scrutinize the surety's qualification and frequently prescribe the bond's form. A well-established § 412 surety with deep ERISA history clears that scrutiny as routine — and the seller's counsel, whose client sits secondarily liable behind the instrument for five plan years, has independent reasons to care that it does. The instrument protects three parties' expectations, and the choice among instruments should be made where all three can live with it.
Running Your Own Comparison
The inputs: the penal sum (from the statutory formula or the calculator); the purchaser's marginal return on deployed capital versus achievable escrow yield; the indicative premium (from a submission — quotes are free); any collateral component; and five plan years. Flag the escrow-comparison box on the intake and the quote arrives with both columns filled in.
Authorities: ERISA § 4204(a)(1)(B); ERISA § 412; 29 CFR Part 4204. Illustrative economics; every placement individually priced. Practitioner commentary, not legal advice.