IThe Short Answer: What You're Actually Comparing
If you run a fund under $100M and you're pricing "fund admin software," you're almost certainly shopping the wrong category. Here's the honest version: fund admin software and a custom build solve two different problems.
One is a compliance-and-audit function — fund accounting, tax filing, the independent books your auditor and your LPs require someone at arm's length to keep. The other is reporting plumbing — capital call notices, LP statements, portfolio KPI rollups, the monthly invoice grind. The first you should buy. The second you can own outright — and most funds under $100M are paying enterprise prices to rent it.
That's the whole argument. The rest of this piece is the math.
I build and operate these systems for a living. I run Black Matter VC, a solo AI systems studio and consultancy that helps funds integrate AI and builds custom automation for their back office — so I've replaced pieces of Carta- and Juniper-Square-style stacks with owned plumbing more than once. What follows is what those platforms actually bundle, what they cost by fund size, and the specific slice a build-and-operate retainer replaces — plus the slice it emphatically does not.
IIWhat 'Fund Admin Software' Actually Bundles
When a vendor sells you "fund administration," you're not buying one thing. You're buying a connected platform with people attached.
Carta positions its Fund Administration product as managing "$220B+ in private capital fund assets under administration," and the feature list is long: fund accounting, capital calls and distributions, an LP portal, K-1 delivery, tax, and — this cycle — "autonomous agents" for cash reconciliation, tax monitoring, and SOI tagging, all behind one login. Juniper Square sits in the same tier, anchored on the investor-portal and LP-communications side. Dynamo Software bundles a lighter fund-admin layer onto its CRM. eFront is the enterprise private-markets back office.
The pitch never changes: one platform, one login, staff who operate it. You're not just buying software — you're buying the fund accountants who run it. For a fund with real complexity, that bundle is worth it. For a first- or second-time manager with a clean structure, most of the bundle is dead weight you're financing out of your management fee.
aThe features menu a $10–50M fund doesn't need
Walk the enterprise feature list and cross off everything priced for a fund several times your size:
- Cross-jurisdictional entity support for funds spanning multiple domiciles.
- Waterfall and carry modeling for complex, multi-close fund structures.
- Managed-close, AML/KYC, and treasury operations at institutional scale.
- Side-letter administration and bespoke LP reporting for dozens of institutional LPs.
A $10–50M Fund I with a single vehicle and a couple dozen LPs uses almost none of it. You're paying for the ceiling of the platform, not the floor you actually stand on.
IIIWhat It Actually Costs, By Fund Size
The category spans four orders of magnitude, so the sticker price only makes sense next to a fund size. Here's the honest range, pulled from 2026 buyer guides:
Two notes that matter. First, fee structure: larger funds get charged in basis points on AUM (commonly 5–15 bps), while smaller, tech-forward funds tend to get a flat annual fee, per VC Beast. Second, where the money comes from. VC management fees run 1.5%–2.5% of committed capital, and Carta's own data shows 2% is the most common rate for funds under $100M. On a $50M fund, 2% is $1M a year to run everything. A dedicated LP-reporting suite starting at $120K would eat 12% of that budget — for reporting alone.
aWhy in-house administration doesn't pencil out below ~$500M AUM
The tempting reaction is: fine, I'll bring it in-house. Don't — not for the full function. Bringing administration fully in-house generally only makes financial sense above roughly $500M AUM across multiple funds, according to Ops.fi. Below that, the fixed cost of staff and systems doesn't amortize, and you still need a third party for the audit independence your LPs expect — so you'd be paying twice. This is the trap that makes people think their only choice is a big vendor contract. It isn't.
IVThe Part of 'Fund Admin' You Genuinely Can't Own
Here's where I'll argue against my own interest, because credibility depends on it. There's a slice of "fund administration" you should never try to build.
Audit independence, tax filing, and regulatory compliance have to be done by an independent third party. That's not a technology limitation — it's the point. Your LPs and your auditor need those numbers kept by someone who isn't you. A 2023 Preqin survey found more than 78% of PE and VC funds over $100M AUM outsource administration, and VC Beast notes the trend is accelerating below that line as institutional due-diligence standards trickle down to smaller LPs. Those funds aren't outsourcing because they can't build software. They're outsourcing because independence is the product.
So the boundary is clear: buy the function that has to be independent. Own the plumbing that doesn't.
VThe Part You Can Own: The Plumbing
Everything left over is data flow, not judgment. Narrow, well-defined, repeatable — exactly the work that automation is good at and enterprise software overcharges for:
- Capital call and distribution notices — templated documents generated from your cap table and mailed on schedule.
- LP statements in ILPA format — the same numbers, formatted to the standard, delivered on the clock.
- Portfolio KPI rollups — pulling metrics out of board decks and updates and normalizing them across companies. This is the workload behind our board decks in, KPIs out, partner digest delivered automatically tool.
- Invoice and bookkeeping automation — the quiet, unglamorous work of catching invoices and getting them into the books. It's why we built invoice automation that kills the monthly admin scramble.
None of that requires an independent third party. None of it requires a platform managing $220B in assets. And crucially, it doesn't require ripping out what you already run. One of the better builds I've done was a workflow layer for a 30-year-old fund without breaking anything already in place — it integrated the systems the partnership already paid for instead of forcing a new tool on anyone.
VIThe ILPA 2026 Deadline Changing the Math
There's a reason this decision is live right now instead of next year.
The ILPA Reporting Template v2.0, released January 22, 2025, is the first update since 2016 — and GPs still in their investment period have to use it starting Q1 2026. It adds more granular fee and expense breakouts and, tellingly, removes the ability to modify or reorder line items. On top of that, ILPA's standard timeline asks direct funds to deliver quarterly LP statements within 60 days of quarter-end — 120 days for the fiscal-year-end quarter, per Citco.
A fixed format with no wiggle room, delivered on a hard clock, every quarter. That is the textbook definition of a job you templatize once and run forever — not a reason to sign a six-figure software contract.
And the timing bites hardest for exactly the funds this piece is about. US venture fundraising had one of its worst years of the decade in 2025: $66.1 billion in new commitments was the lowest since 2018, and the 537 funds closed were just 30% of the 2021 peak. Emerging managers closed only 177 funds in 2025, a decade low, and of the ~2,220 VCs who launched in 2021–2022, only about 29% had raised a follow-on by Q3 2025. Meanwhile, funds larger than $1B have captured 71.9% of US VC capital raised so far in 2026, up from 34.2% in 2025. The capital is concentrating at the top, and the smaller managers being squeezed are the last people who should be signing an enterprise fund-admin contract to satisfy a formatting rule.
VIIWhat a $10K/Month Build-and-Operate Retainer Actually Replaces
So let's map it directly. A build-and-operate retainer — the model I run, at $10K/month — replaces the reporting and operations layer, not the compliance function. Line for line:
That last row is the honest part. The retainer does not touch audit, tax, or the independent books. It sits alongside your admin and handles the plumbing that admin overcharges you to bolt on — or that you're currently doing by hand in a spreadsheet at 11pm before an LP call.
aA teardown: from spreadsheet sprawl to an LP-grade platform
Here's a real one, anonymized. A $200M+ climate-tech fund was running its portfolio reporting on a sprawl of spreadsheets. We built a custom platform that cut LP reporting time by roughly 90% and made their portfolio data queryable in plain English from Slack.
What we replaced: the manual gathering, cleaning, and reformatting of portfolio data into LP-ready reporting. What we didn't touch: their fund accounting, their audit, their tax. Those stayed exactly where they belonged — with independent providers.
The cost comparison is the whole point. A dedicated LP-reporting suite for a fund that size runs from Chronograph's $120K floor up toward Allvue's $400K–$1.2M band. An owned build that does the reporting job — and that the fund keeps — comes in at a fraction of that, and it doesn't scale its price with your AUM.
VIIIBuild vs. Buy: A Decision Framework by AUM and Team Capacity
There's no universal answer, but there is a clean rule of thumb by size:
Capacity matters as much as size. If nobody on your team can operate a system after it's built, you don't want a build — you want a service. The middle band is where owning the plumbing wins cleanest: big enough that reporting hurts, small enough that enterprise pricing is absurd.
IXFAQ: Build-and-Operate Retainers for Fund Reporting
What's included in the retainer?
Building and operating the custom automation around your fund's reporting and operations — LP statement pipelines, portfolio KPI rollups, invoice and bookkeeping capture, and the data infrastructure that ties them together. It's build and operate: I don't hand you a system and disappear, I run it. What's not included is anything that has to be independent — audit, tax, and formal fund accounting stay with your admin.
How long does it take to stand up?
Faster than an enterprise implementation, because the scope is narrow. Carta quotes 4–8 weeks just to onboard; automating a single well-defined data flow — say, ILPA-format LP statements — means the first working piece lands in weeks, and the system grows from there. Scope drives the timeline, not a fixed rollout calendar.
What happens to the data and the systems if the retainer ends?
You keep everything. The build lives in your own infrastructure — your cloud, your database, your CRM — not locked inside a vendor's platform. The whole philosophy is an owned layer, not a rental one: a fund should be able to operate its own plumbing without an ongoing engineering dependency.
Does it work alongside an existing fund admin?
Yes — that's the intended shape. The retainer complements your admin and auditor; it doesn't try to replace them. It integrates with the systems you already pay for rather than forcing a rip-and-replace, and it handles the reporting workload that sits awkwardly between what your admin does and what you end up doing by hand.
XThe Verdict
Buy the audit and compliance function — you have to, and it's worth paying for independence. Own the reporting plumbing — it's narrow, repeatable data flow, not judgment, and you shouldn't rent it at enterprise prices.
The mistake I watch sub-$100M funds make is treating "fund admin software" as a single purchase and reaching for the platform with the longest feature list. You end up financing cross-jurisdictional entity support and institutional-scale AML out of a 2% management fee, to solve a reporting-format problem. Match the spend to the workload your fund actually has today. Buy what has to be independent. Own the rest.
— Michael Rouveure · 21 JUL 2026
