Glossary
Revenue Leakage
Also known as: Billing leakage
Revenue leakage is value the firm earned but never invoiced: hours worked and not recorded, recorded and written off, covered by scope the contract never priced, or billed at rates that were never escalated. Unlike a lost deal, leakage is invisible — the work happened, the cost was paid in salaries, and the revenue simply failed to appear.
The largest single leak in services firms is unrecorded time. Work logged from memory at week-end systematically drops the small items — the ten-minute fix, the quick call, the third revision — and those fragments compound: two untracked hours a week at ₹1,500 is over ₹1.4 lakh per person per year.
The second leak is the write-down: recorded hours trimmed at invoice review because they overran an estimate or cannot be defended line by line. The third is structural — retainers quietly consuming more hours than they were priced for, and contractual rate escalations that never make it into the next invoice.
Finding leakage is a comparison exercise: hours worked versus hours invoiced (realisation), retainer hours consumed versus purchased (retainer burn), and effective rate versus stated rate per client. Each gap names a different leak and a different fix.
How Workclave handles this
Workclave attacks the biggest leak at the source: sessions recorded as work happens, not remembered on Friday. The approval trail then protects those hours at invoice review, and per-client reports surface the retainers and rates leaking the rest. billable hours leakage in Indian IT agencies.
Related terms
Realisation rate is the percentage of hours worked on client engagements that is actually invoiced to the client. It is calculated as hours billed divided by hours worked. A firm that works 120 hours for a client but invoices 102 has an 85% realisation rate — the other 18 hours were written off before the invoice went out.
Read definition →Scope creep is the gradual expansion of what a project delivers without a matching change in its price or timeline. Each addition is small — one more revision, a extra report, a 'quick' integration — and none triggers a renegotiation. The scope grows; the fee does not; the margin absorbs the difference.
Read definition →Retainer burn is the rate at which a client consumes the hours their monthly retainer purchases. A client on a 40-hour retainer who has used 34 hours by the 20th is at 85% burn with a third of the month remaining. Burn tracking is what makes a retainer a managed product rather than an all-you-can-eat subscription.
Read definition →A write-off is recorded work removed or reduced before invoicing — hours the team spent that the client is never asked to pay for. Write-offs happen at billing review, when a partner or account lead trims entries that overran the estimate, look indefensible, or would trigger an awkward conversation. The difference between hours worked and hours billed is the firm's realisation gap.
Read definition →Billable hours are the units of work time that can be charged to a client under a contract or engagement. They exclude internal activities like admin, training, or bench time that the client does not pay for. For services firms, billable hours are the direct link between effort and revenue.
Read definition →