What Is an Excess Servicing Spread Sale, and What Does the Seller Keep?
An excess servicing spread sale carves the servicing fee in two and sells the top slice while the seller keeps servicing the loans. The seller retains a base servicing fee for doing the work, and the spread above that base is split by percentage between buyer and seller. In the Nationstar transaction that set the template for the market, the buyer took “the rights of Seller, severable from each (and all) of the other rights under the applicable Servicing Agreements, to 65% of the Total Servicing Spread,” the seller kept the other 35 percent as the Retained Servicing Spread, and the seller drew a separate base servicing fee of 0.06 percent a year on the outstanding balances.
So the seller keeps three things: the base fee, its share of the spread, and the obligation to service. What it sells is a cash flow, not a job.
Why does the fee get split this way?
Because the buyer wants the economics without the operational and regulatory burden, and the agencies will not let it have the servicing itself.
The structure exists to sever a payment stream from a set of duties that cannot practically be transferred. The definition does the work: the excess spread is described as severable from every other right under the servicing agreements. Everything the agency cares about, meaning who services, who advances, and who answers for performance, stays where it was.
That framing also explains the base fee. The base servicing fee is calculated monthly as the product of the aggregate outstanding principal balance of the serviced loans as of the measurement date, the base servicing fee rate, and a monthly or semi-monthly fraction. It is priced to cover the cost of servicing rather than to generate return. The return is in the spread, and the spread is what moved.
What exactly is in the “total servicing spread”?
More than the servicing fee, and the inclusions and exclusions are where deals get argued.
In the Nationstar agreement the total servicing spread is the servicing spread collections received during the collection period after payment of the base servicing fee, plus all other amounts payable by the agencies including termination fees, but expressly excluding all ancillary income and reimbursements, plus amounts received in respect of repurchase prices from the prior owner.
Read the carve-outs. Ancillary income stays with the seller. Reimbursements stay with the seller. Termination fees are shared. A buyer negotiating this definition is really negotiating what happens on the edges of the portfolio, and a seller who gives away ancillary income without noticing has sold considerably more than the spread.
Who gets paid first?
A waterfall, and the ordering is not what a seller would draft.
Funds run through a third-party controlled custodial account, and the priority is termination payments split pro rata, then the base servicing fee, then any accrued unpaid base fee, then the excess and retained spread after indemnities and reserve deposits, then anything remaining to the seller.
The seller’s base fee sits second, which is the right place for it. But the seller’s own share of the spread sits fourth, behind indemnity obligations and reserve funding. In a stressed month the servicer gets paid for servicing and waits for its equity.
What happens if the seller’s credit deteriorates?
A reserve builds, and the trigger is a credit test rather than a servicing test.
A reserve account deposit event occurs if the seller’s tangible net worth falls below $150 million or the seller defaults on indebtedness exceeding $10 million, at which point funds move from the custodial account into a reserve until it equals 25 percent of the fair market value of the remaining expected total servicing spread.
That is a large number and it arrives at exactly the moment the seller can least spare it. Any seller signing an excess spread deal should model that trigger against its own covenant package, because a breach elsewhere in the capital structure can pull a quarter of the remaining spread value into a reserve here.
Is it a sale or a loan?
The parties say sale, and then they draft for the possibility that a court disagrees.
The intent language is unambiguous. The parties intend the transfer to “constitute a valid sale of the Excess Servicing Spread from Seller to Purchaser, conveying good title… free and clear of any Lien,” and intend that the beneficial interest not form part of the seller’s estate in bankruptcy. They agree to treat it as an absolute sale for tax purposes and an absolute conveyance of title for property law purposes. Closing was conditioned on a law firm opinion on sale characterisation.
And then the fallback: if the conveyance is characterised by a court or governmental authority as security for a loan rather than a sale, the seller is deemed to have granted a security interest in the spread and its proceeds as security for a loan in the amount of the purchase price.
Every excess spread deal carries that pair. The intent clause is the deal the parties want; the recharacterisation clause is the deal they get if a bankruptcy court looks at it differently. A buyer relying on the first without the second has an unsecured claim against a servicer in distress.
What does the agency say about all this?
That it will consent, on its terms, and that the buyer’s position is subordinate to everything.
Fannie Mae permits a sale, assignment, transfer, pledge, or hypothecation of excess servicing compensation, and separately of the right to receive reimbursement of servicing advances, but only with “prior written consent of Fannie Mae, in its sole discretion,” requested at least 30 days before the proposed effective date. The purposes are limited: funding servicing activities, collateral for warehouse lines, or purchasing substantially all the assets of a mortgage banking company.
The subordination is the part buyers underprice. Fannie’s acknowledgment agreement provides that the security interest “is subject and subordinate to all rights, powers, and prerogatives of Fannie Mae” under the acknowledgment agreement and the Lender Contract. More directly: “The secured creditor has no claim or entitlement as a secured creditor against Fannie Mae, and Fannie Mae has no duty or obligation to the secured creditor, except as otherwise expressly provided in the acknowledgment agreement”.
And Fannie keeps the right to terminate, sell, or transfer the pledged servicing, after which the servicing moves “free and clear of the secured creditor’s security interest”.
What is the seller really promising?
Continuity, and a consent right that constrains its own portfolio decisions.
The seller covenants to service in accordance with accepted servicing practices and to perform in all material respects under the servicing agreements and applicable law. On termination of a servicing agreement, the seller “shall remain liable to Purchaser and the applicable Agency for all liabilities and obligations incurred by Servicer or its designee while Seller or its designee was acting as Servicer thereunder”. And the seller cannot terminate or amend its servicing rights without the purchaser’s express written consent, or assign, transfer, or sell them to a replacement servicer without written consent first.
That last one deserves attention on the seller side. An excess spread sale puts a third party into every future decision about the underlying servicing, including a bulk sale the seller might want to run years later. It is a financing that quietly encumbers strategic flexibility, and the consent standard is the provision to negotiate.
Where the leverage sits
On the definition of total servicing spread, on the reserve trigger, and on the consent standard for a later transfer. The percentage split gets all the attention in the term sheet and almost none of the value, because it is the one number both sides model correctly.
The financing-side view of servicing rights, and what an acknowledgment agreement does when a servicer defaults, sits in what an acknowledgment agreement gives the agency on servicer default. Where the servicing is performed by a third party rather than the named servicer, the provisions that matter are different again and are covered in what to negotiate in a subservicing agreement.

