Break out interchange, SaaS fees, spread, float, and ancillary services by customer job and channel. Model sensitivity to rate caps, processor pricing, and partner take rates. Run pricing experiments with clear guardrails, while measuring churn, downgrade paths, and expansion revenue across multiple renewal cycles.
Map variable costs beyond processor fees: fraud losses, chargeback labor, collections, disputes, and servicing. Include capital costs, loss reserves, and liquidity buffers. Attribute costs at the cohort level to reveal hidden cross-subsidies and avoid scaling lines of business that only look profitable.
Calculate payback using gross margin after fully loaded risk and ops. Compare blended versus marginal CAC by channel saturation. Build retention programs before pouring spend. Seek product-driven referrals and partnerships, where unit economics improve with usage rather than relying on ever louder advertising.
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