Spend Efficiency & Profitability Analysis
Revenue is growing. Margins aren't keeping up. We find exactly what's compressing profit — and hand you a ranked plan to fix it.
Growing revenue can hide a shrinking business
In payments, margin compression rarely comes from one big problem. It comes from several small ones — each invisible until you look at the right level of detail.
At $1M in processing volume, chargebacks and refunds are a rounding error. At $100M, they're a margin problem. They scale with customer volume faster than revenue does — and most companies aren't tracking them until they show up in the P&L.
Contracts signed at early-stage rates are still running two years later. Scope expanded. Costs grew. The price didn't. Every renewal is a margin leak that compounds.
Marketing and sales spend is concentrated in channels with long payback and low conversion. The burn multiple looks fine at the top line — until you break it down by channel.
Headcount and software accumulated during a growth phase and never got rationalized. G&A is now a larger percentage of revenue than it was 18 months ago, and no one has a clean view of why.
A diagnosis and a plan — not just a spreadsheet
Unit economics
- Software vs. blended margin after card and processing fees, by cohort
- CAC, LTV, and payback — calculated, not estimated
- Contribution margin per revenue stream after direct costs
- Which clients and contracts are profitable — and which are costing you
Go-to-market efficiency
- CAC by channel — where you're acquiring customers cheaply vs expensively
- Sales cycle and conversion rates by segment
- Burn multiple and marketing spend-to-revenue ratio
- Pipeline coverage and quota attainment against headcount cost
Software and overhead
- Full software stack audit — redundant, underused, and overpriced tools flagged
- Vendor contracts reviewed for renegotiation opportunities
- Overhead as a percentage of revenue benchmarked against stage
- Specific cuts ranked by savings with zero growth risk
One-time engagement from $4,750 · Optional quarterly review from $1,750
Fixed pricing, scoped to your cost complexity.
Book a callWhat you walk away with
What's pulling margin down
A ranked view of every margin drag — what it costs you, and why.
- Underpriced contracts — which clients you're serving below cost
- Processing fees — card costs not renegotiated as volume scaled
- GTM inefficiency — channels with negative or marginal ROI
- Overhead drift — G&A growing faster than revenue
- Scope creep — delivery costs that grew beyond what's billed
What to do about it
Specific, sequenced actions ranked by margin impact — with owners, timelines, and what success looks like.
- Repricing playbook — which contracts, by how much, how to have the conversation
- Fee renegotiation — processing and passthrough costs benchmarked and actioned
- GTM reallocation — where to shift budget for higher return
- Vendor cuts — which tools to cancel, consolidate, or renegotiate
- Quarterly tracking — Bridges stays in to verify improvements are holding
What you're buying
A one-time engagement, delivered in 2–3 weeks. Here's exactly what happens.
Inputs
Days 1–4We collect your P&L, client-level revenue and cost data, GTM spend by channel, headcount plan, and software contracts. We map your fee structure — processing costs, passthrough fees, and interchange — against your revenue to get a clean picture of blended margin.
- P&L, billing data, and client-level revenue collected
- Fee structure and passthrough costs mapped
- GTM spend, headcount, and software contracts documented
Diagnose
Days 4–12We break down gross and net margin by client, channel, and service line. Every drag on profitability is identified, quantified, and ranked by impact. Nothing generic — every finding is specific to your numbers.
- Client and channel P&L — net revenue after fees and costs
- Unit economics: CAC, LTV, payback, and blended margin
- Every margin driver ranked by dollar impact
Deliver
Week 3You receive the full analysis and a prioritized action plan — specific steps, owners, and timelines, ordered by expected margin recovery. Reviewed together in a 45-minute session.
- Full diagnosis: every margin drag identified and quantified
- Ranked action plan with owners, timelines, and expected impact
- 45-minute review session — walkthrough and Q&A
Common Questions
What's a good CAC payback period for a vertical SaaS company raising Series A?
CAC payback is one of the first efficiency metrics investors stress-test at Series A. At Bridges, we calculate and track CAC payback monthly so founders always know where they stand before entering a raise process.
- Under 12 months — best in class
- 12–18 months — strong, Series A fundable
- 18–24 months — acceptable with a clear efficiency roadmap
- Above 24 months — investors will push back without a compelling NRR story
What does a healthy LTV/CAC look like for a vertical SaaS company?
LTV/CAC measures whether your growth model is economically sound. At Bridges, we calculate LTV using gross-margin-adjusted revenue — not top-line ARR — so the ratio reflects the economics of a payments business accurately.
- 3:1 or higher — minimum bar for most Series A investors
- 4:1 or higher — strong; signals room to invest more in growth
- A high LTV/CAC with a long payback period still creates a cash flow problem — both must be tracked together
- Processing fees must be included in the gross margin calculation or LTV will be overstated
What are good margins for a vertical SaaS company?
Margins for vertical SaaS look different from pure SaaS — and investors know it. At Bridges, we model and present margins in layers so the business is never penalized for the structure of its revenue.
- Gross margin — 60–70% is typical for payments-heavy models; 75–80%+ for pure software
- Net revenue margin — track net revenue after all processing fees as a distinct line
- Contribution margin — should be positive per transaction before overhead is applied
- Processing fees belong in COGS — model this explicitly before presenting to investors
How do you calculate sales efficiency for a vertical SaaS company on Stripe?
Sales efficiency tells you whether it's worth spending more on go-to-market — or whether the machine needs fixing first. At Bridges, we calculate the Magic Number monthly and tie it directly to hiring and spend decisions.
- Magic Number = net new ARR ÷ fully-loaded S&M spend
- Above 0.75 — invest more in sales and marketing
- 0.5–0.75 — optimize before scaling spend
- Below 0.5 — fix retention or conversion before adding headcount
- For vertical SaaS, always use net revenue — not GMV — as the ARR input
What AE to SDR ratio should a vertical SaaS company have?
The right AE to SDR ratio depends on your sales motion and deal complexity. At Bridges, we model headcount ratios against pipeline coverage and AE capacity before recommending any change to the go-to-market structure.
- Early stage (seed–Series A) — 1 SDR per 2–3 AEs is typical
- Enterprise payments or vertical SaaS with longer cycles — closer to 1:1
- PLG or self-serve motions — SDRs focus on expansion, not top-of-funnel
- Ratio should be driven by AE capacity utilization — if AEs are pipeline-constrained, add SDRs first
Find the margin — before your investors do
Processing fees quietly compounding, contracts running below cost, GTM spend in the wrong channels — every margin point you recover before a raise compounds into valuation. A 15-minute call is enough to scope what needs to change.