Delaware Series LLC for SPVs: When Cells Are Enough

A Delaware series LLC is one limited liability company whose agreement can establish cells — series of members, managers, interests, or assets — under a single certificate of formation. For SPVs, the question is not whether Delaware is the right state. It is whether a cell is enough, or whether LPs, banks, and company counsel still want a standalone LLC. This is series mechanics, not a branding pitch for Delaware.

This is general information, not legal, tax, or investment advice. Counsel should read the statute against your offering, your lenders, and the states where you actually operate.

What a Delaware series LLC for SPVs is

Delaware's Limited Liability Company Act lets the LLC agreement "establish or provide for the establishment of 1 or more designated series of members, managers, limited liability company interests or assets." A series may have separate rights, powers, or duties with respect to specified property or obligations, and it may have a separate business purpose or investment objective (6 Del. C. § 18-215(a)).

The master LLC is the entity that filed the certificate of formation (6 Del. C. § 18-201). The cells sit under that filing. That is the operational appeal for a GP running many single-deal SPVs: one registered agent, one master agreement architecture, additional series created by the agreement (and, if you want a registered series, an extra Secretary of State filing).

It is not a real-estate tenancy-in-common vehicle, and it is not a substitute for the governance terms each deal still needs — purpose, manager authority, economics, transfers, and dissolution. Those terms live in the agreement, cell by cell or in a series supplement.

If the question is why sponsors form in Delaware at all, that is a different post: Why Delaware for SPVs. This post is when a series cell is enough for the SPV itself.

Protected series vs registered series

Delaware names three things, and GPs collapse them:

• A series that is neither protected nor registered. The agreement can still silo economics. The statutory liability limitation in § 18-215(b) and § 18-218(c) does not apply to that series just because you called it a cell.

• A protected series, established under § 18-215(b). No separate certificate of registered series.

• A registered series, formed under § 18-218 by filing a certificate of registered series with the Delaware Secretary of State. The LLC agreement must provide for series; the series is formed by that filing (6 Del. C. § 18-218(a)). Filing the certificate is notice that the registered series has been formed (6 Del. C. § 18-207).

"Series LLC for SPVs" in marketing usually means "I want deal-level liability walls without forming a new LLC each time." That outcome is statutory only if the conditions below are met. Calling a schedule of the agreement "Series A" does not, by itself, create a protected or registered series.

The statutory conditions for a liability limitation

Do not take a vendor one-liner that "cells are bankruptcy-remote." Delaware's own statute is conditional.

For a protected series, § 18-215(b) limits enforcement of that series' debts to that series' assets, and (unless the agreement says otherwise) keeps the LLC's general debts and other series' debts off that series' assets, only if all of the following are true:

1. The LLC agreement establishes or provides for the series.

2. Records maintained for the series account for the assets associated with that series separately from the other assets of the LLC or any other series.

3. The LLC agreement provides for the limitation.

4. Notice of the limitation on liabilities of a series is set forth in the certificate of formation.

Records "reasonably identify" the series' assets by listing, category, formula, or any other method where identity is objectively determinable (6 Del. C. § 18-215(b)). Notice in the certificate of formation is enough even if no series exists yet; you do not have to name each future SPV cell in the public filing.

For a registered series, § 18-218(c) states a parallel limitation: to the extent records account for that series' assets separately, debts of the series are enforceable against the assets of that series only, and not against the LLC generally or any other series, with the same "unless otherwise provided" carve-outs. Notice of the limitation must be in the certificate of formation (6 Del. C. § 18-218(b)–(c)).

What the statute does not say, and what this post will not invent:

• That a non-Delaware court, a bankruptcy court, or a contract counterparty must respect the wall in every fact pattern

• That sloppy books still get the limitation

• That a series is a separate "person" for every federal or sister-state purpose

• That you can skip deal-level contracts because the cell exists

If the wall matters — a deal with borrowed money, a messy counterparty, or LPs who will ask "what happens if Series B blows up" — have counsel map the statutory conditions, the records you will actually keep, and the jurisdictions that will see a dispute. A cell with commingled cash is not a protected series in any practical sense, whatever the certificate recites.

Fees Delaware actually charges

Statutory amounts, from the LLC Act as published on Delaware Code Online (accessed 25 August 2026):

• Certificate of formation, or certificate of registered series: $70 (6 Del. C. § 18-1105(a)(3))

• Courthouse municipality fee on the filing: $40 (6 Del. C. § 18-206(e))

• Annual tax on the domestic LLC: $400, due 1 June following the close of the calendar year (6 Del. C. § 18-1107(b)–(c))

• Annual tax on each registered series: $100, also due 1 June (6 Del. C. § 18-1107(b)–(c))

Protected series do not have a separate annual tax in § 18-1107. Registered series do. That is one reason sponsors who wanted a public filing per cell moved from "just a protected series" to a registered series, and why a stack of registered series is not free relative to standalone LLCs on the Delaware tax line alone. Secretary of State expedite schedules and registered-agent invoices sit on top of the statute; this post does not recap unpublished vendor prices.

A standalone Delaware LLC SPV on Allocations is $9,950 one-time, with 0% platform carry. That figure is formation-plus-admin for a separate LLC, not a series-cell SKU.

EINs, banking, and tax classification

Federal tax classification of a series is fact-specific. An LLC with at least two members that does not elect corporate treatment is classified as a partnership for federal income tax purposes by default (IRS, Instructions for Form 1065 (2025), definition of Limited Liability Company). Whether a particular cell is a separate partnership, a disregarded series, or something else is a tax-adviser question. This post will not invent an EIN rule per cell.

What GPs actually hit in ops:

• Banking. The bank underwrites the account it is opening. Expect KYC on the master LLC, the series, the manager, and the control persons, and expect the bank's form of operating-agreement extract. Some banks will not open an account titled in a series; some will. That is a counterparty policy, not a Delaware Code section.

• Books. Separate records are a statutory condition for the liability limitation. They are also how you avoid wiring Deal 2's capital into Deal 1's account.

• Investor reporting. Each cell that is an SPV still needs a cap table, subscription files, and, if it is a partnership for tax purposes, a K-1 process.

If any of those fail, the cell was not cheaper. It was unfinished formation.

When GPs still form a standalone LLC SPV

A series cell can be enough when the GP controls a homogeneous stack of small, unlevered, single-asset deals, the LPs are repeat investors in that stack, the bank will title the account correctly, and counsel is comfortable that the statutory conditions will be maintained.

GPs still form a standalone Delaware LLC, which is the default path in How to Set Up an SPV, when any of the following is true:

• Company counsel or the stock purchase agreement requires a specific, newly formed entity with its own certificate of formation

• An LP's investment policy forbids series LLCs, or the LP's counsel will not diligence a master-plus-cell structure on the deal timeline

• Debt, guarantees, or a third-party financing source will not underwrite a cell

• The GP cannot commit to separate records, separate accounts, and separate tax workpapers for every cell

• The offering needs a clean story for Form D, blue sky, and investor onboarding without explaining a master entity the LP did not subscribe to

A Delaware series LLC is a filing architecture. It is enough when the statute, the records, the bank, and the investors all line up. When they do not, form the standalone LLC and spend the effort on the deal.