A Law Firm Billing Schedule: The Weekly Calendar That Gets Invoices Out on Time

The billing week is supposed to end on Thursday. In practice, it ends whenever someone finally has the time. Drafts sit in a queue while attorneys finish a filing. A partner wants to “take one more look” at three matters. The invoices go out on the ninth instead of the first, and nobody can say exactly why.

That drift has a price. Every day an invoice waits adds a day to the time between work performed and cash collected, and the client has not even seen the bill yet. A law firm billing schedule fixes the problem the dull way: it names the day time closes, the day drafts are reviewed, and the day invoices leave, and it gives each step an owner. Here is how to build one that your team will keep.

Why a law firm billing schedule matters more than the software

Software can move a draft from one screen to the next. It cannot decide that Tuesday is review day. That decision is a firm policy, and without it, the tool reflects the firm’s habits back at it.

A published schedule changes three things. Timekeepers know the deadline for entries, so late time stops arriving after drafts are built. Reviewers know when their work is due, so drafts stop bouncing between inboxes. And clients learn to expect an invoice on a predictable day, which makes it easier for them to budget and pay. You can do all of it with a shared calendar and someone willing to enforce it.

The four dates every schedule needs

A workable schedule has four dates. Name them, put them on a shared calendar, and hold them.

1. The time cutoff

Choose a day and an hour after which new entries wait for the next cycle. Many firms pick the last business day of the period, or the day before drafts are built. The exact choice matters less than the consistency. If an attorney bills a matter after the cutoff, that time lands on the next invoice. The clear rule saves the argument.

Pair the cutoff with a reminder a day or two earlier. Timekeepers who see unsubmitted time on their own dashboard clean it up without being chased. Our post on how lawyers track billable hours automatically covers ways to make capture less dependent on memory.

2. The draft build

Someone, usually a billing coordinator or administrator, assembles drafts from entries that cleared the cutoff. This step should take hours, not days. If it takes days, the cause is usually missing data upstream: entries without narratives, matters without rates, or unapproved expenses. Fix those at the source and the build step shrinks.

3. The review window

This is where schedules most often fail. Give reviewers a fixed window, such as two business days, and a clear definition of what review means. The responsible attorney checks time, narratives, and write-downs for matters they supervise. A second person checks format, rates, and client billing instructions. The details of that handoff are worth writing down, and our guide to creating a workflow for reviewing and approving invoices walks through one approach.

If a reviewer misses the window, decide in advance what happens. The cleanest rule is that the draft goes out as built, with any later corrections handled as a credit. A rule that nobody enforces teaches everyone the window is optional.

4. The send date

Pick the day invoices leave and treat it as fixed. Send them in a batch, with payment links where the firm accepts online payment, so that the client sees one consistent experience. Then schedule the follow-up too: a reminder before the due date and another after. For ideas on that sequence, see our post on past-due invoice reminders at 30, 60, and 90 days.

A sample week

Here is one way to lay the four dates onto a monthly cycle for a small firm. Adjust the days to fit your own rhythm.

• Last business day of the month, 5 p.m.: Time cutoff. Unsubmitted entries wait for next month.
• First business day: Draft build. The billing coordinator assembles drafts and flags missing narratives or rates.
• First and second business days: Attorney review. Each responsible attorney approves or edits their matters.
• Third business day, morning: Final pass for format, rates, and client instructions.
• Third business day, afternoon: Invoices go out.

Firms that bill weekly or at milestones can shrink the same structure: a Thursday cutoff, a Friday build, Monday review, and Tuesday send. The pattern stays the same even when the clock changes.

Put the schedule on one page

Write the schedule down where everyone can find it. One page is enough: the four dates, the name of the person who owns each step, and the rule for late time and late reviews. Pin it in the firm’s shared drive, and send it to every timekeeper and reviewer the week you adopt it.

Include one line on what happens to invoices that miss the send date. The cleanest rule is that they go out on the next business day, with no extra review, so that a delay of a day does not become a delay of a week. Also name a backup for each owner. Schedules that depend on one person’s presence break the first time that person takes a vacation.

When you launch the schedule, run the first cycle as a trial. Ask each owner after the send date what slowed them down, and adjust the window that took the longest. By the second cycle, most of the friction is visible and fixable.

What to do about the exceptions

Every schedule meets an exception. A partner needs an invoice early for a client meeting. A matter closes mid-cycle. A client asks for a different date. Handle these with a rule rather than a favor. Allow an off-cycle invoice, but require the same review steps, and have the billing coordinator log it so it does not surprise the next cycle.

Watch for the quiet exception, the matter that keeps getting skipped because it is awkward. If the same matter slips twice, escalate it. Work that is performed but not billed is money the firm has earned and cannot see, and our guide to reviewing unbilled time and expenses firm-wide shows how to catch it.

How to know the schedule is working

Measure two things. First, how many invoices leave on the scheduled day. If the answer is most of them, the schedule is real. If the answer is half, the review window is the likely problem. Second, how long invoices take to be paid after they go out. A consistent send date tends to make payment timing easier to read, because you are comparing like with like.

Review the schedule once a quarter. Move a date if it keeps failing, and keep the habit of announcing changes in advance. A billing schedule is a promise the firm makes to its own team first and its clients second. Firms that keep it spend less time chasing drafts and can see the path from work performed to cash collected more clearly. If you want to see how a connected billing workflow supports that rhythm, that page is a good next step.