How do you automate invoice preparation in a professional services firm?

What is billing week really costing the firm?

In many firms the end of the month has its own rhythm. Accounts produce pre-bills. They go to fee earners, who scroll through time entries written in shorthand weeks ago, try to remember what "call re: docs" meant, rewrite the narrative, argue with themselves about a write-down, and send it back. Partners review the large bills late in the evening. Some bills slip into next month because nobody had time.

The cost has three parts. The hours spent preparing and reviewing bills, which fall mostly on senior people. The cash that arrives later than it should because bills went out late. And the value lost in write-offs that were never really decided, just defaulted to because the entries could not be explained.

For the first part, take the hours each fee earner and partner spends on billing in a month, convert to a weekly figure, and multiply by their charge-out rate and 46 working weeks. The unbillable hours calculator gives you the total. The cash and write-off effects sit on top of that, and the audit is a quick way to see billing against the rest of the week.

Why is a bill effectively written twice?

The work was described once when it was recorded. A time entry, a file note, an email to the client. Then at billing it is described again, for a different reader. The time entry was written for the firm; the invoice narrative is written for the client. Because nobody connects the two, the fee earner rebuilds the story of the month from fragments.

The same happens with the fee agreement. The engagement letter says fixed fee for stage one, hourly after that, with a cap. At billing someone opens the letter to check, because the terms are not held where the bill is drafted.

What does a rebuilt invoice preparation process produce?

A draft bill that a fee earner can approve in a few minutes, not a pre-bill they have to decode. It brings together:

• Time and fixed fee stages from your practice or time system, applied against the terms in the engagement letter or statement of work, including caps and agreed stages.
• Disbursements and expenses matched to the matter or job, with anything unmatched flagged rather than silently dropped.
• A client-facing narrative drafted from the time entries and work notes, grouped by activity and written the way your firm describes its work.
• Warnings where recorded time is running past the estimate, where work falls outside the agreed scope, or where a bill would take the matter past a limit you promised the client.
• A review step in which the billing fee earner approves, edits or writes down, with the reason captured for your records.

Out-of-scope warnings are especially useful. They are the moment to raise a variation with the client, not three months later when the bill is disputed.

What changes for fee earners, partners and accounts?

Fee earners check drafts instead of writing them. Partners review bills that already explain themselves, with the exceptions pointed out. Accounts stop sending reminders to people who have not returned pre-bills, because turning a bill round is quick enough that it gets done. Clients receive invoices that describe the work in language they recognise, which tends to mean fewer queries and faster payment.

Over time, the write-down reasons build into something the firm has rarely had: an honest record of where estimates and scopes go wrong. That feeds directly back into fee estimating.

Is it a good fit for your kind of firm?

It fits best where billing is regular, time-based or stage-based, and reviewed by senior people. Law firms billing hourly and fixed-fee matters, accountancy practices billing recurring and one-off engagements, engineering consultancies and surveying practices invoicing against fee stages, and agencies billing retainers with extras all recognise the pattern. If your time recording is patchy, timesheet capture may be the better first rebuild.

What does the 30 day rebuild involve?

We start with a recent billing run. Working with accounts and two or three fee earners, we follow bills from pre-bill to issued invoice and note where they stall, what gets rewritten and which documents are opened to check terms. Next, drafting is built against your time and billing systems, your engagement terms and your narrative style, and it is used in parallel on the next billing run so fee earners compare drafts with their own. By the fourth week the drafts are the bills: fee earners and partners are trained on review, and the old pre-bill round is retired. Thirty days of support follow, which covers the next billing cycle in full.