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Consulting Invoice Generator

Bill by day rate, retainer or deliverable, with the engagement reference.

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Quick Tool Overview

The Consulting Invoice Generator bills against the engagement rather than the hours: the SOW reference in the header, days or milestones as the unit, the dates and scope under each line, and expenses recharged at cost on their own lines.

What it does
Builds a consulting or advisory invoice
You give it
The engagement, the days or milestones, expenses
You get back
An invoice a finance director can approve
Best for
Consultants, advisers and professional firms
Invoice Tools Free, unlimited use No sign-up Runs in your browser

About the Consulting Invoice Generator

Consulting invoices get queried for a specific reason: the value is in judgement, and judgement does not itemise well. "Strategy consulting — £12,000" tells a finance director nothing they can approve, so it goes to the partner who signed the engagement, and that takes three weeks.

The fix is to invoice against the engagement rather than against the hours. This builder puts the engagement or statement-of-work reference in the header, takes days, half-days or deliverables as the unit, and gives every line a detail row for the dates and the people. Expenses go on their own lines at cost, which is what almost every consulting agreement requires.

Retainers, milestone billing and drawdown against a fee cap all work: bill the milestone as a line, show the deposit already paid, and the balance due is what is left.

Key features of the Consulting Invoice Generator

Engagement reference

The SOW or engagement letter number in the header, where approvals look.

Days, half-days or milestones

Bill in the unit the contract actually uses.

Scope in the detail row

Dates and people under each line, so nothing needs a phone call.

Expenses at cost

Separate itemised lines, as almost every consulting agreement requires.

Drawdown against a cap

Show what has been billed and what remains of an agreed fee cap.

How to use the Consulting Invoice Generator

  1. 1

    Reference the engagement

    The SOW, engagement letter or contract number goes in the header, not the description.

  2. 2

    Bill in the unit the contract uses

    Days, half-days, milestones or a fixed fee — whatever was agreed.

  3. 3

    Say what was done and when

    The detail line under each item carries the dates and the scope.

  4. 4

    Recharge expenses at cost

    Separate lines, itemised, with receipts available on request.

  5. 5

    Deduct any drawdown

    Show what has been billed against the fee cap and what remains.

Frequently asked questions

By whatever the engagement letter says. Day rates are the norm for advisory work because they match how the time is actually bought; hourly suits shorter, interrupt-driven work. Mixing the two on one invoice without explanation invites a query.

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