What’s the difference between an honorarium and an invoice?

The honorarium is the payment. The invoice is the paperwork. Many hosts don’t need an invoice at all, because they pay from their own payment request and the payee forms you fill in, such as a W-9. If they ask for one, keep it short, like the example.

Should travel go on the same invoice as the honorarium?

If the host offered to cover travel, list each item on its own line, at cost or at the host’s mileage rate, with receipts. Some hosts reimburse travel on their own form instead, so ask. If they do, leave travel off the invoice.

Do I put my Social Security number on an honorarium invoice?

No. It doesn’t go on the invoice, and this tool has no field for it. If the host needs your taxpayer ID, they’ll ask for it on their own form, such as a W-9.

Can the honorarium be paid to my business?

Not always. Some universities, such as UPenn and Ohio State, say they pay honoraria to individuals rather than businesses. If you bill through a company, the host may treat it as a fee for services instead. Ask the host.

How do I show the honorarium was paid?

Open the same invoice and click Mark as paid. Balance due becomes $0.00 and the PAID label appears. Add the date and how you were paid to the notes, then download the paid copy.

What if we agreed on a fee in advance?

Some hosts then treat it as a speaking fee rather than an honorarium. Use the same invoice with the line reading “Speaking fee”, and use the word the host uses. Add a deposit or payment terms only if you agreed them.

Invoice template

Honorarium invoice template

Send the invoice a host asks for after a guest lecture or talk: the honorarium on one line, travel on its own lines, and the host's reference at the top. The PDF is made in your browser and nothing is uploaded.

Start with the honorarium template

Dr. Maya Ellison maya.ellison@example.com 412 Orchard Avenue Grand Rapids, MI 49503

INVOICE

ME-2026-03

Bill to

Department of History, Brookmere College jordan.lee@brookmere.example Attn: Jordan Lee, Events Coordinator 100 College Drive Brookmere, MI 49000

Issue date: Oct 16, 2026
Due date: Nov 15, 2026
Invoice #: ME-2026-03
PO / ref: HIST-26-1147
Currency: USD

Description	Qty	Rate	Amount
Honorarium: guest lecture “Mill Towns of the Grand River”, Fall Lecture Series, Oct 15, 2026	1 flat	$500.00	$500.00
Mileage, Grand Rapids to Brookmere College and back, Oct 15, 148 miles at the college’s rate	148 each	$0.70	$103.60
Parking, visitor garage, Oct 15 (receipt attached)	1 each	$12.00	$12.00

Subtotal$615.60

Total$615.60

Notes

Thank you for the invitation of Sep 21, which offered a $500.00 honorarium plus mileage at $0.70 a mile and parking. Travel is listed separately. Parking receipt attached. My W-9 went to Jordan Lee on Sep 28, separately from this invoice. Please quote ME-2026-03 when you pay.

Honorarium or invoice?

An honorarium is the payment, a thank-you payment for a talk or visit. The invoice is the paperwork. Many hosts, universities especially, don’t need an invoice from you. They pay from their own payment request and the W-9 or payee form you fill in. If they ask for an invoice anyway, send a short one like the example. Ask your contact what their office needs before the event.

Worked example: a guest lecture with mileage

Honorarium, guest lecture, Oct 15: 1 at $500.00
Mileage, 148 miles at the college’s rate of $0.70 a mile: 148 × $0.70 = $103.60
Parking, receipt attached: $12.00

Total $615.60, no tax. The invoice is dated Fri Oct 16, 2026, and Net 30 makes it due Sun Nov 15, 2026. The $0.70 is the rate the host offered in its invitation, so use whatever rate your host gives you. These are example amounts, not typical honoraria.

What goes where

From: your own name and a mailing address. Some universities, such as UPenn and Ohio State, say they pay honoraria to individuals rather than businesses. Check with your host. If you bill through a business, ask first, because the host may handle it as a fee for services.
Bill to: the department or organization, with your contact’s name in the address block.
PO / ref: the reference number the host gave you, such as an event number, requisition, or PO. It prints next to the invoice number.
The honorarium line: the event, series or course, and the date.
Travel: only what the invitation offered, each item on its own line at the amount you paid or at the host’s mileage rate, with “receipt attached” where you have one. Many hosts code travel differently from the honorarium, which is why it stays separate. Expense reimbursement on invoices has more on mileage and receipts.
Notes: the date of the invitation, what it offered, which receipts are attached, and that the W-9 was sent separately.

Variants

The host reimburses travel on its own form: delete the mileage and parking lines. Total $500.00. Send the receipts with the host’s travel form, not with the invoice.
Two events on one visit plus a hotel: a $500.00 lecture on Oct 15, a $150.00 class visit on Fri Oct 16, mileage $103.60, parking $12.00, and one hotel night on Oct 15 at $134.00 (receipt attached). Total $899.60.
A virtual talk: one line, “Honorarium: virtual talk for the Fall Lecture Series, Oct 22”, 1 flat at $300.00. Total $300.00.
You set or negotiated the price: some hosts then treat it as a fee for services, not an honorarium. Same invoice, but the line reads “Speaking fee” and the host may process it differently. Use the word the host uses. Add a deposit or payment terms only if you agreed them.
The paid copy: once the host pays, say on Fri Nov 6, click Mark as paid. Amount paid becomes $615.60, Balance due $0.00, and the PAID label appears. Add “Paid Nov 6 by check. Thank you.” to the notes.

If you’d like the host to donate it, ask them how. UCSF and UCSD say to do it in writing before the event.

What to keep off the invoice

Your Social Security number. It doesn’t go on the invoice. If the host needs your taxpayer ID, they’ll ask for it on their own form, such as a W-9. The tool has no field for it anyway.
A tax line. Leave tax at 0% unless you know a tax applies to what you’re billing.
Visa questions. If you’re not a US citizen or resident, ask the host’s office before the event what they need from you.

How to finish it

Click “Start with the honorarium template”.
Change your name, address, the host, the event, the date, and the amounts.
Put the host’s reference in PO / ref. Delete the travel lines if the host reimburses travel on its own form.
Download the PDF and email it to your contact with the receipts.
Next talk: Duplicate as new gives ME-2026-04 and clears PO / ref, so enter the new host’s reference.
Once you’re paid: click Mark as paid, keep Show PAID label on, and download the paid copy for your records.

The button opens the invoice generator with this invoice filled in, today’s date, and Net 30. The paid invoice template shows the paid copy, and invoice numbering has a simple sequence for a few talks a year. If the host asks how you’d like to be paid, see choosing payment methods to list on invoices. Billing a negotiated workshop fee plus hours? The consultant template fits that better, and the free invoice template starts from a blank invoice.

Free, private, no account

Tiny Utility Lab built FreeInvoicePDF so an invoice never has to leave your device. No signup. The PDF is assembled here with pdf-lib, and nothing is uploaded. Your home address and the host’s details stay in this browser.

Frequently asked questions

Practical notes on honorarium invoices in this in-browser tool (not legal or tax advice).

What’s the difference between an honorarium and an invoice?: The honorarium is the payment. The invoice is the paperwork. Many hosts don’t need an invoice at all, because they pay from their own payment request and the payee forms you fill in, such as a W-9. If they ask for one, keep it short, like the example.
Should travel go on the same invoice as the honorarium?: If the host offered to cover travel, list each item on its own line, at cost or at the host’s mileage rate, with receipts. Some hosts reimburse travel on their own form instead, so ask. If they do, leave travel off the invoice.
Do I put my Social Security number on an honorarium invoice?: No. It doesn’t go on the invoice, and this tool has no field for it. If the host needs your taxpayer ID, they’ll ask for it on their own form, such as a W-9.
Can the honorarium be paid to my business?: Not always. Some universities, such as UPenn and Ohio State, say they pay honoraria to individuals rather than businesses. If you bill through a company, the host may treat it as a fee for services instead. Ask the host.
How do I show the honorarium was paid?: Open the same invoice and click Mark as paid. Balance due becomes $0.00 and the PAID label appears. Add the date and how you were paid to the notes, then download the paid copy.
What if we agreed on a fee in advance?: Some hosts then treat it as a speaking fee rather than an honorarium. Use the same invoice with the line reading “Speaking fee”, and use the word the host uses. Add a deposit or payment terms only if you agreed them.