Time entry defensibility

Billing disputes are almost always disputes about defensibility, not about the work itself. A client who challenges an invoice is usually not disputing that the work occurred — they are disputing whether the entry provides sufficient basis to understand and accept what was done and why. A vague entry cannot be defended because it does not contain the information needed to evaluate it.

Defensibility matters in several contexts. For firms with corporate clients, outside counsel guidelines (OCGs) frequently specify minimum entry requirements — a narrative that describes the work, a matter reference, and a timekeeper. Entries that do not meet these requirements are routinely written down or rejected before payment.

For smaller firm billings, defensibility matters in the event of a fee dispute or a client relationship that deteriorates. Entries that were specific and well-documented are significantly easier to defend than entries that require reconstruction of what was meant months after the fact.

Defensibility is also a function of capture timing. An entry recorded while context is present is specific and detailed. An entry reconstructed from memory is more likely to default to generic descriptions that survive the entry session but fail at invoice review.