What it is
Days Sales Outstanding is the average number of days it takes a business to collect cash after issuing an invoice. The standard formula is DSO = (accounts receivable / total credit sales) x number of days in the period. Run it monthly or quarterly and you get a single number: the real-world gap between doing the work and having the money in the bank.
DSO is not the same thing as your contracted payment terms. Terms of business might say a client pays within 30 days. DSO is what actually happens once slow payers, disputed invoices and the odd client who waits until the final reminder are averaged in. A desk can have perfectly reasonable 30-day terms on paper and a DSO of 55 days in practice, and the gap between those two numbers is the thing worth watching.
A fee you have invoiced but not collected is not revenue yet. It is a loan to your client that you did not choose to make.
Why it matters
Every other commercial term in a recruiter's vocabulary, rate card, split fee, rebate, clawback, sliding scale fee, answers how much a placement is worth. DSO answers a completely different question: how long after winning that fee do you actually get paid for it. A high-margin placement on a client that pays in 90 days can strain cash harder than a thinner-margin placement on a client that pays in 15. Fee amount and collection speed are two separate levers, and an agency that only manages the first is only half managing its cash position.
The strain lands hardest on contingency and temp desks, because the agency is funding contractor payroll weekly or fortnightly out of its own cash while waiting for the client invoice to clear, sometimes 60 or 90 days later. A rising DSO on those desks is not an abstract accounting figure, it is the working-capital gap getting wider every week a contractor stays on assignment. Many UK agencies work towards a DSO somewhere in the 30 to 45 day range as a general reference point, reflecting standard 30-day terms plus a realistic collection lag, though the right number varies by desk mix and client base. When DSO drifts well past that, it is usually a sign of slow-paying clients or weak credit control rather than bad luck, and it is one of the most common reasons agencies turn to invoice factoring to bridge the gap.
How boilr handles it
boilr does not chase invoices or run credit control, that stays a finance and operations function. What it changes is how early you see the risk coming. Payment terms and payment history sit against every account in the Company Brain alongside fee structure and terms of business, so a consultant opening a new mandate can see whether that client has historically paid on time or dragged, before committing contractor headcount or payroll exposure to it.
Because signals are watched continuously across the accounts in your pipeline, a client showing early signs of financial strain, a funding gap, restructuring, leadership turnover, often shows up before the invoices start slipping, giving you a window to act rather than a surprise on the aged debtor report. And because one AI sales employee per consultant removes the manual grind of prospecting, the time that frees up can go towards following up on slow payers and protecting the accounts that matter, rather than only chasing the next lead.
