Strategy
Custom vs SaaS for fund management: when to stop renting
SaaS fund management platforms cost $12,000-$60,000 per year in subscriptions. A custom platform costs $10,000-$20,000 once. Over three years, the SaaS path costs 3-7x more than the custom path. This article compares total cost of ownership, data control, and fund-structure fit for small AMCs.
You pay FXBackOffice $3,000 a month. That's $36,000 a year. In three years, you've paid $108,000 for software you don't own, data you can't export cleanly, and a platform that was designed for forex brokerages, not your fund.
The SaaS model makes sense when the platform fits your workflow and the subscription costs less than the build. For fund management, that math stopped working when custom builds dropped below $20,000 and build timelines dropped below 8 weeks.
The subscription treadmill
SaaS vendors price fund management software on a monthly or annual basis. The pitch: predictable costs, automatic updates, and no infrastructure management. The reality for small AMCs: you're paying enterprise prices for a platform built for a different industry.
FXBackOffice charges $1,000-$5,000 per month. The lower tier covers basic back-office operations. The upper tier adds CRM, advanced reporting, and API access. Most funds managing $10M+ land in the $2,000-$4,000 range once they add the features they need.
Juniper Square starts at $24,000 per year. The workflow is designed for real estate investment managers: capital calls, property-level reporting, distribution waterfalls tied to real estate deal structures. If you run a crypto fund, a commodity fund, or a multi-strategy fund, the platform forces you to map your operations to real estate concepts.
Both platforms charge setup fees ($2,000-$10,000) and customization fees if your fund structure doesn't match their template. The customization timeline adds 2-4 months before the platform is usable.
Year-by-year: SaaS vs custom
Year 1: setup vs build
SaaS path: $5,000 setup + $24,000-$48,000 subscription + $5,000-$15,000 customization = $34,000-$68,000. Timeline: 2-4 months before the platform matches your workflow. You spend those months on calls with their implementation team, mapping your fund structure to their data model.
Custom path: $10,000-$20,000 fixed price + $600-$2,400 hosting = $10,600-$22,400. Timeline: 4-8 weeks. You review a live staging URL during the build. The platform is designed around your fund structure from day one.
Year 1 savings with custom: $23,400-$45,600.
Year 2-3: the compounding gap
SaaS path: $24,000-$48,000/year. Subscription renews. Prices often increase 5-10% annually. New features you need may require upgrading to a higher tier.
Custom path: $600-$2,400/year for hosting. Optional maintenance retainer at $500-$1,500/month if you want ongoing feature development. You only pay for what you need built.
| SaaS (FXBackOffice mid-tier) | Custom build | |
|---|---|---|
| Year 1 | $41,000 (setup + sub + customization) | $16,200 (build + hosting) |
| Year 2 | $36,000 | $1,200 (hosting) |
| Year 3 | $37,800 (5% increase) | $1,200 (hosting) |
| 3-year total | $114,800 | $18,600 |
| You own the code | No | Yes |
| You own the data | Vendor-controlled export | Full database access |
The data ownership problem
When you use a SaaS platform, your investor data, transaction history, and compliance records live in the vendor's database. If you switch platforms, you get an export. CSV files, maybe an API dump. You lose the data structure, the relationships between records, and any custom fields the platform added on your behalf.
With a custom platform, you own the database. Your data sits in a Postgres instance on infrastructure you control. If you switch builders, fire your developer, or bring operations in-house, the data stays where it is. No migration fees. No export negotiations. No vendor lock-in.
For regulated funds, data ownership matters beyond cost. Your compliance officer needs to produce audit trails on demand. With a custom platform, that's a database query. With SaaS, it's a support ticket and a 48-hour wait.
Fund structure fit
SaaS platforms serve many customers. Their feature set reflects the median need, not your specific fund. If you run a crypto fund with TRC20/ERC20/BEP20 payouts, no SaaS platform handles that natively. If your distribution waterfall has non-standard tiers, the platform's template won't match.
Customization requests go through a product team that's balancing requests from hundreds of customers. Your feature might ship in 6 months. It might never ship. You're at the mercy of the vendor's roadmap.
A custom platform is built around your fund structure from day one. Tranche-based investments? Built in. Referral chain payouts? Built in. Custom NAV calculation logic? Built in. The platform matches your operations because it was designed for your operations.
When SaaS wins
SaaS makes sense if your fund structure matches the platform's template (real estate funds on Juniper Square, traditional brokerage on FXBackOffice), you don't need custom payout logic, and you prefer paying $2,000-$4,000 per month over managing infrastructure. Some funds value the vendor relationship: someone to call when something breaks, automatic updates, and compliance features maintained by the platform.
When custom wins
Custom wins when the three-year SaaS cost exceeds the one-time build cost (true for any subscription above $400/month), when your fund structure requires custom logic the platform doesn't support, or when data ownership and compliance control are non-negotiable requirements.
For most small AMCs managing $10M-$200M with non-standard fund structures, custom is the cheaper, faster, and more flexible option starting in year one.
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