Consulting Invoice Template

For independent consultants and small advisory firms who bill companies for time and expertise. Columns are labeled Service, Hours and Rate, and an Engagement / PO # field links the invoice to the contract or purchase order your client uses internally.

It uses a classic layout and Net 30 terms, which fit how most corporate clients process payments. For project-based creative work, see the freelance invoice template instead.

Use this template

Free · no signup · fill it out online

Columns: Service · Hours · Rate
Default terms: Net 30
Extra fields: Engagement / PO #

Calloway Advisory LLC

401 N Michigan Ave, Suite 1200 Chicago, IL 60611

invoices@example.com

(312) 555-0163

Invoice

No.: CA-2026-018
Date: Jun 30, 2026
Due date: Jul 30, 2026
Engagement / PO #: LL-PO-40517

Bill to

Kevin Brooks

Lakeshore Logistics Inc.

2200 S Halsted St Chicago, IL 60608

accounts.payable@example.com

Terms

Net 30

Line items
Service	Hours	Rate	Amount
Operations assessment, June 22 × $175.00	22	$175.00	$3,850.00
Stakeholder interviews 6 × $175.00	6	$175.00	$1,050.00
Leadership workshop facilitation 4 × $225.00	4	$225.00	$900.00
Findings report and presentation 1 × $1,500.00	1	$1,500.00	$1,500.00

Subtotal: $7,300.00
Tax: $0.00
Total due: $7,300.00

Notes

Thank you for your business. Please include the invoice number with your payment. A detailed time log is available on request.

Template preview with example details

What's included

An Engagement / PO # field, which many companies need before an invoice can be approved.
Service, Hours and Rate columns, so time-based billing reads clearly.
Different rates on different lines, useful when workshops or senior work are priced higher.
Room for fixed-fee lines, like a final report, alongside hourly work.
Full business and client details for accounts payable.
Net 30 terms by default and a note offering a time log, which heads off common questions.

Best for

Independent consultants and advisors
Hourly or monthly retainer billing
Corporate clients that require a PO or contract number
Engagements billed monthly on Net 30 terms

Frequently asked questions

How do I invoice a consulting retainer?

Add one line for the retainer period, such as "Monthly advisory retainer, July," with a quantity of 1. Bill any work beyond the retainer on separate hourly lines.

Should I attach a time log?

Many clients appreciate one for hourly work, and some require it. A short summary by date and task is usually enough.

What if my client pays late?

Send a polite reminder shortly after the due date that references the invoice number and amount. In the BePaid app you can see which invoices are overdue at a glance. See payment terms for setting expectations up front.

BePaid: Free Invoice Maker 2Go

Free on the App Store · iPhone

The BePaid app creates the final, clean PDF invoice, and your first invoice is free. It also keeps track of who has paid.

Invoices & quotesCreate both, and turn an accepted quote into an invoice in a tap.
Clients & saved itemsKeep customer details and your usual services ready to reuse.
Payment statusSee what's paid, unpaid and overdue at a glance.
Expenses & receiptsSnap a photo of a receipt and log the expense.
Your brandAdd your logo and signature, and pick from 8 invoice styles.
Send as PDFShare the finished invoice by email or message from your iPhone.