SPV Calculator: How to Model Fees, Carry and Returns for Special Purpose Vehicles

A $1M SPV with 20% carry on a 10x gross exit pays LPs approximately $8.2M net — not $10M. Most people investing in SPVs have never run this math.

SPVs (Special Purpose Vehicles) are deal-by-deal investment vehicles that let GPs pool LP capital into a single company. They have exploded in popularity — AngelList alone has facilitated billions in SPV volume — but the fee structures, carry mechanics, and return modeling are often buried in legal docs most LPs never read closely. This post gives you the full SPV calculator framework with real numbers.

SPV Calculator: The Core Model

The SPV return formula is straightforward. The variables that matter: invested capital, gross exit multiple, carry rate, hurdle rate (if any), and platform/admin fees.

Here is the base formula: Net LP proceeds = (Gross exit proceeds − Carry on profits) − Admin fees. Carry is calculated only on profits above cost basis. If there is a hurdle rate (rare in deal-by-deal SPVs), carry only kicks in above that threshold.

20% carry, no hurdle rate, no management fee. Admin fees (~$10K) excluded for simplicity.

SPV Fee Structures by Platform

The fee structure varies significantly by platform. Here is what you actually pay on the major SPV platforms as of 2026:

• •AngelList SPV: ~$8K–$12K setup + 1% platform fee on capital raised + $2K/year admin. Most common for deal-by-deal VC SPVs under $5M.
• •Carta Launch: $8K–$10K flat setup, no percentage platform fee. Annual admin $2K–$3K. Better economics for larger SPVs where 1% bites.
• •Assure: $6K–$10K setup depending on complexity, $2K–$4K/year. Known for handling SPVs with complex terms or foreign investors. No percentage fee.
• •Allocate: $5K–$8K setup, $1.5K–$2.5K/year. Newer entrant, competitive pricing, focused on emerging managers. Minimum LP check sizes $25K.
• •Custom (law firm only): $15K–$30K in legal fees with no ongoing platform. Uncommon for deals under $10M — overhead exceeds economics.

On a $1M SPV, AngelList's 1% platform fee costs $10K — the same as setup. On a $5M SPV, that fee becomes $50K, at which point Carta or Assure flat-fee structures are more LP-friendly. I've run SPVs on multiple platforms and the platform fee structure is one of the first things sophisticated LPs ask about.

How to Use the SPV Calculator as an LP

Before wiring capital into any SPV, run three scenarios: base case (2x–3x gross), bull case (10x+ gross), and write-off (0x). The write-off scenario is the most instructive — because for most single-company bets, it is the modal outcome. Per CB Insights data, roughly 70% of VC-backed startups that raise seed rounds never return investor capital.

The bull case math matters too. At 20% carry on a 30x gross return, the GP captures 20% of the 29x profit above basis — roughly 5.8x of the 30x gross. LPs receive ~24.2x net. That is still an exceptional outcome, but understanding the GP's economics helps you evaluate alignment. A GP who negotiates 25% carry on a breakout deal is taking 7.25x of the same 30x outcome — real money that compounds across a portfolio.

The most useful SPV calculator metric is expected value: probability-weight your scenarios. If you assign 60% to a write-off, 30% to a 2x net, and 10% to a 10x net, your expected MOIC is (0.6 × 0) + (0.3 × 2) + (0.1 × 8.2) = 1.42x. That is below what you could earn in public markets with far less liquidity risk — which is why deal selection and GP access matter enormously in SPV investing.

You can track live SPV structures and VC fund economics on the SPV Dashboard at Value Add VC, including carry percentages, minimum checks, and platform comparisons across active SPVs.

Carry Structures That Differ From the Standard 20%

Not all SPVs charge 20% carry. Here is the actual range I see across deal types:

• •10% carry: Common for well-known operators or repeat GPs who can compete on terms. Signals strong LP demand — GP is giving up economics to close larger checks faster.
• •15% carry: Middle ground increasingly popular with syndicate leads on AngelList. Signals moderate pricing power — GP has access but not scarcity.
• •20% carry: Standard market rate. Found across the majority of SPVs — this is the default you should assume unless explicitly told otherwise.
• •25%–30% carry: Premium structures for GPs with verified track records, exclusive deal access, or late-stage secondary SPVs where the deal itself has lower risk. Rare but exists — model it carefully before committing.
• •Carry + management fee: Some SPVs layer a 1%–2% management fee (annualized on committed capital) on top of 20% carry. This is LP-unfavorable — the management fee compounds the fee drag before you get to carry. Avoid unless the deal is exceptional.

What a Full SPV Return Model Looks Like

Here is a complete worked example for a $2M SPV investing in a Series B company at a $100M post-money valuation:

Setup: $2M raised, $10K AngelList setup + $20K platform fee (1%), $2K/year admin. Total year-one costs: ~$32K — usually charged to SPV, reducing deployable capital to ~$1.97M.

Investment: $1.97M deployed at $100M post-money → 1.97% ownership. Company exits at $1B (10x post). LP share of exit: $1.97M × 10 = $19.7M gross.

Carry calculation: Profit = $19.7M − $2M basis = $17.7M. GP carry at 20% = $3.54M. LP net proceeds = $19.7M − $3.54M = $16.16M.

Net MOIC for LPs: $16.16M / $2M = 8.08x — not 10x, but still a strong outcome that most LPs would take all day. The key insight: a 10x gross investment is an ~8x net investment after standard 20% carry.