The essential financial metrics every Transaction Services analyst uses: EBITDA, NWC ratios, DSO, DPO, inventory days, and how to interpret them.
Transaction Services analysts work with a specific set of financial metrics daily. These are not the same metrics used in corporate finance valuation or equity research — they are metrics that support deal analysis, detect anomalies and communicate findings to deal teams. Knowing them and knowing what they tell you is essential for TS interview success.
The EBITDA margin is used to benchmark profitability against peers and to assess whether the current margin is sustainable. A margin that is materially above the sector average should trigger investigation: is it a genuine competitive advantage or an accounting artefact?
DSO = (Trade Receivables / Revenue) × 365
Measures how long, on average, customers take to pay. A rising DSO indicates slower collections — potentially a cash quality risk or a sign of customer distress.
DPO = (Trade Payables / COGS) × 365
Measures how long the company takes to pay its suppliers. A rising DPO can indicate cash management optimisation — or supplier relationship strain.
Inventory Days = (Inventory / COGS) × 365
How long inventory sits in the business before being sold. Rising inventory days may indicate slow-moving stock, production overruns or demand shortfalls.
NWC % = Net Working Capital / Revenue × 100
Normalising NWC as a percentage of revenue allows comparison across years and against benchmarks, controlling for growth. A stable NWC % suggests the working capital base is growing proportionally with the business.
Revenue per Employee = Revenue / Headcount
A productivity indicator. Particularly useful in service businesses. A declining trend may indicate hiring ahead of revenue growth, or productivity degradation.
Gross Margin = (Revenue − COGS) / Revenue
Measures the profitability of the core product or service before overhead allocation. A deteriorating gross margin signals pricing pressure, rising input costs, or changing product mix.
Cash conversion = Free Cash Flow / EBITDA
Assesses how much of EBITDA converts to cash. A low conversion rate may indicate high working capital absorption, heavy capex, or one-off cash outflows.
In practice, a TS analyst builds ratio trend tables for the last two to three years and the LTM, identifying any metrics that deviate from historic norms or sector benchmarks. Each deviation becomes a discussion point with management.
Financial metrics are the language of Transaction Services. The analyst who can calculate them, interpret them and explain what they mean in a deal context performs at a higher level from day one.
The Transaction Services Interview Programme (€119.99, one-time) covers all key TS metrics with calculation exercises and interpretation guidance. Get started now.
Hundreds of candidates prepared their interviews with this programme. Those who landed the role have one thing in common: they worked the cases before walking into the room.
