Invoicing for Freelance Writers: Per Word, Per Project, or Retainer

Writers get paid four ways: per word, per project, per hour, and on retainer. Each one moves risk between you and the client, and picking the wrong one for the assignment is how a $600 article quietly becomes $11 an hour. Here's how the models compare, what kill fees are actually for, and why “payment on acceptance” belongs in every agreement you sign.

Match the Pricing Model to the Assignment

Per-word pricing suits defined assignments with a clear brief: $0.10-0.15 a word at the low end of content work, $0.25-0.50 for solid B2B and trade writing, $1 and up for specialist and technical material. Bill the assigned count, not the delivered count. If the brief said 1,500 words and tight editing brought it in at 1,320, you invoice 1,500, because writing shorter is a skill, not a discount. Project pricing fits research-heavy work: interviews, case studies, white papers, anything where the words are the visible tenth of the job. Hourly is the weakest model for writers, since it punishes speed and makes client budgeting impossible; save it for editing passes and out-of-scope revisions.

Get Paid on Acceptance, Not Publication

Publications traditionally paid on publication, which means your money waits on an editorial calendar you can't see, and a shelved piece pays nothing at all. Negotiate payment on acceptance instead: the editor approves the final draft, the invoice goes out that day, and your payment terms start running. Corporate and agency clients are simpler; invoice on delivery of the final draft, net 30 or shorter. If a publication won't budge from pay-on-publication, price the wait into your fee or ask for half on acceptance and half on publication. A yes to either tells you they respect the work.

Kill Fees for Cancelled Assignments

A kill fee is what a client pays when they cancel an assigned piece for reasons that aren't your fault: the editorial direction changed, the product launch died, the budget vanished. The norm is 25-50% of the agreed fee if the piece was underway, and 100% once the final draft is delivered, whether or not it ever runs. Kill fees get agreed before work starts, in the contract or the assignment email. With new corporate clients, skip the kill fee logic entirely and take a 50% deposit instead; it does the same job with less negotiating.

Retainers for Anchor Clients

A retainer trades a modest discount for guaranteed volume: four posts a month at $540 each instead of $600, invoiced in advance on the first. In advance is the entire point, since a retainer billed after the month ends is just a regular invoice with extra steps. Cap the rollover too. One unused piece carries forward one month and no further, or the client banks half a year of articles and cashes them in during your busiest week. There's a fuller playbook in billing with retainers.

Revisions: Define the Rounds Before You Draft

Two revision rounds is the standard inclusion, and the definition matters more than the number: a round is one consolidated set of edits from one authorized reviewer. Five stakeholders sending notes across two weeks is five rounds, not one. A change of direction, as in “this is well written, but let's target CFOs instead,” isn't a revision at all; it's a new draft and gets quoted as one. Two more norms worth holding: ghostwriting without a byline carries a 20-50% premium, and rights transfer when the invoice is paid, not when the draft is delivered.

Put the Model on the Invoice

Whichever model you choose, restate it in the line item: “Feature article, 1,500 words at $0.40 per word, two revision rounds included.” A line that restates the deal prevents quiet renegotiation at payment time, and it takes two minutes in the free invoice generator. Vague lines like “writing services” invite the question your rate was supposed to answer.