What is block billing and why do clients reject it?

Lumping several tasks into one time entry (“calls, research, drafting — 4.5 hrs”). Clients and fee auditors reject it because no single task can be evaluated for reasonableness. Bill each task as its own entry with its own tenth-of-an-hour figure.

Should disbursements include a markup?

Generally no — ethics rules in most jurisdictions require passing costs through at actual cost unless the engagement letter says otherwise. Itemize each disbursement with a date and payee; a bare “expenses — $1,240” line invites a fee dispute.

Free Legal Invoice Template

Invoice legal services: bill by the hour or matter, itemize disbursements, apply any retainer, and download a professional PDF.

Your business

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Business name

Address

Phone

Tax ID

Website

Bill to

Client name

Address

Tax ID

Invoice details

Invoice #

Issue date

Due date

Currency

PO number

Items

DescriptionQtyRateAmount

Tax & totals

Tax label

Tax rate %

Tax inclusive

Discount

Discount value

Shipping

Amount paid

Notes & payment

Notes

Terms

Payment details

Style

Document type

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What to include on a legal invoice

Firm name and contact details
Client and matter reference
Hours or fixed fees per service
Disbursements and expenses
Retainer applied, tax, total and terms

How law firm billing works

Firm invoices are built from time entries: each timekeeper records work in tenths of an hour (0.1 = 6 minutes) with a narrative, billed at that person’s rate — partner, associate and paralegal rates differ, and the invoice shows who did what. Every matter has a number, and invoices bill by matter, never mixed. Disbursements — filing fees, service of process, expert fees, travel — are passed through separately from fees. Corporate clients increasingly demand e-billing formats (LEDES) and enforce billing guidelines: no block billing, no vague narratives, staffing limits. A clean invoice that survives an auditor reads like a diary, not a summary.

Common legal billing structures

Most firms run several of these side by side:

Hourly by timekeeper: partners commonly $300–$800+, associates $200–$500, paralegals $100–$200
Flat fees for defined work: incorporations, trademark filings, simple wills, immigration forms
Monthly retainers for ongoing advisory work, drawn down against recorded time
Contingency (litigation/PI): a percentage of recovery — no invoice until resolution
Blended rates or capped fees, negotiated on larger engagements
Disbursements: at cost, itemized — courts, couriers, experts, transcripts

Invoice discipline that gets firm bills paid

One matter per invoice, with the matter number and billing period in the header
Narratives that say what was done and why (“draft and revise MSA §7 indemnity” — not “work on file”)
No block billing: one task per time entry, or guideline-bound clients will reject the bill
Summarize hours and amounts by timekeeper at the end — clients read that table first
Bill monthly while the work is fresh; realization drops sharply on stale time

FAQ

What should a legal invoice include?: A
What is block billing and why do clients reject it?: Lumping several tasks into one time entry (“calls, research, drafting — 4.5 hrs”). Clients and fee auditors reject it because no single task can be evaluated for reasonableness. Bill each task as its own entry with its own tenth-of-an-hour figure.
Should disbursements include a markup?: Generally no — ethics rules in most jurisdictions require passing costs through at actual cost unless the engagement letter says otherwise. Itemize each disbursement with a date and payee; a bare “expenses — $1,240” line invites a fee dispute.

More invoice templates

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