Free planning support cost more than small accounts earned.
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Fintech · Wealth & robo

Free planning support cost more than small accounts earned.

This marketing & margin audit surfaced $61k in recurring annual margin in a Fintech business — evidenced, senior-reviewed, and delivered in 6 days.

$3–8M annual revenue Wealth & robo Focus: Cost-to-serve
+$61k
margin recovered / yr
+4pts
small-account margin
6 days
to findings
Support cost vs fee on small accounts
Before audit
140%
After fix
85%

The business

A wealth and robo-advice platform offered access to human financial planners as a differentiator, available across its account base. Assets under management were growing and the service was popular, so the cost of providing that human support was never weighed against the AUM-based fee each account actually generated, particularly at the smaller end of the base.

What triggered the audit

Margin was thinner than AUM growth implied, pointing at cost-to-serve rather than revenue. The audit modeled the cost of human planning support against the AUM fee each account tier produced, testing whether the service was economic across the whole base or only part of it.

What the audit found

The human-planning support was running at a loss on the smaller accounts. For clients with modest balances, the AUM-based fee generated only a small amount of revenue, yet those same clients could consume as much planner time as far larger accounts — so the fully-loaded cost of the support exceeded the fee the account produced. The service was genuinely economic for larger balances but structurally unprofitable at the bottom of the base, and because cost-to-serve had never been set against per-account revenue, the platform kept offering unlimited support to accounts that couldn’t fund it. As the small-account segment grew, so did the drag. Reconciled by tier, the mismatch was costing roughly $61k a year in support delivered below its fee.

How we produced this finding

MarginFix produced the cost-to-serve finding by rebuilding the fintech economics after every cost — fees, returns, fulfillment and discounts included. What emerged wasn’t an estimate but a verified contribution-margin read, checked line by line and signed off by a named senior auditor.

Data sources: Cost of goods, cost-to-serve inputs, fulfillment, fees, returns and discounts — reconciled per unit and per order, so the true contribution margin behind every single sale is visible rather than assumed.

Key frameworks: A full contribution-margin and cost-to-serve rebuild, full-cost ROAS and margin-based ROI analysis, framed by the Enterprise Marketing ROI Framework that treats spend as a capital-allocation decision.

Human validation gate: Every number is rebuilt on your own cost data and signed off by a named senior auditor before it ships — no figure leaves the building without a human standing behind it.

Verified against
Transaction ledger CAC / funnel analytics Unit-economics model Finance P&L

The margin recovered / yr was measured like-for-like over a matched period, reconciled to recognized revenue in the ledger, and signed off by a named senior auditor before publication. Client identity redacted to protect their commercial position.

WORKING PAPER ████████ Wealth & robo
Representative Redacted
Account bandSupport cost vs fee
> $250k AUM
48%
$50–250k AUM
82%
< $50k AUM
140%
margin recovered / yr +$60,880
Recurring — recovered every year the fix holds, not a one-off.
Working paper: support cost vs fee on small accounts traced line by line and reconciled to recognized revenue in the ledger over a matched period. Line items representative and redacted; the recovered figure is the reconciled audit finding.

What we changed

Modeled fully-loaded planning cost against the AUM fee by account tier, exposing exactly where human support was being delivered below the revenue it earned.

Restructured support so unlimited human planning is reserved for the tiers whose fee genuinely covers the cost of providing it.

Offered smaller accounts a scalable, digital-first support model that fits their economics without stripping the service away entirely.

Made cost-to-serve by tier a monitored metric, so the small-account drag can’t quietly expand again as that segment grows.

The result

$61k a year recovered by matching planning support to what each account tier actually pays — a 10× return on the $5,950 Audit + Sprint fee. For any AUM-fee business, the leak is at the bottom of the base: small accounts can consume as much planner time as large ones while paying a fraction of the fee. If you offer unlimited human support without modeling cost-to-serve by tier, the smallest accounts may be your biggest drag. A fixed-fee audit models it in days and right-sizes the service.

From kickoff to signed-off findings: 6 days — inside our fixed 5–7 day window.

Reviewed & signed off by:
MarginFix Audit Team
Senior Auditor · MarginFix · 10+ years of auditing experience
Anonymized to protect the client · senior-reviewed findings · Last reviewed
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