Skip to main content

Invoice Software for Writers & Authors

Whether you bill per word, per article, per project, or on retainer, InvoiceQuickly adapts to your writing business. Describe the assignment and get a professional invoice with proper line items β€” no more cobbling together invoices in Google Docs between deadlines.

Industry context (2026)

US freelance writing market reached $8.4B in 2024, with content writing ($3.6B), copywriting ($2.2B), and journalism/longform ($1.1B) as the major segments. Average rates 2026: per-word $0.10-$0.50 (general content) to $1-$3+ (premium B2B/SaaS), per-piece $200-$2,500 (depending on length and outlet), retainer $2,000-$10,000/month for ongoing content programs. The transition from per-piece to retainer billing accelerated 2022-2024 as agencies and brands consolidated content vendors.

Writers/Authors Invoicing Challenges

Multiple billing models

Per-word, per-article, per-project, hourly, and retainer β€” writers use many billing structures, sometimes with the same client. You need flexible invoicing that handles them all.

Scope creep and revision billing

Clients request 'just one more round of revisions' that wasn't in the original scope. Without clear invoicing, additional work goes unbilled.

Kill fees and cancellation terms

When a client cancels a commissioned piece, you need to invoice for the kill fee. Having a professional document makes this less awkward.

Juggling many clients

Freelance writers often have 5–10+ active clients. Keeping track of what's been invoiced, what's pending, and what's overdue requires organization.

How InvoiceQuickly Helps Writers/Authors

1

Describe the assignment, get an invoice

Type '5 blog posts for TechCo, 1,500 words each at $0.15/word, plus SEO research 3 hours at $75/hr, net 30' β€” get a complete writing invoice.

2

Writing-specific templates

Templates for freelance articles, copywriting, ghostwriting, content strategy, technical writing, and book manuscripts. Each includes relevant fields for that type of work.

3

Revision and kill fee tracking

Bill for additional revision rounds or cancellations with clear line items that reference the original assignment.

4

Multi-client dashboard

See outstanding invoices across all your clients. Know exactly who owes what and follow up on overdue payments.

β€œI write for 8 different publications. InvoiceQuickly keeps my billing organized and professional β€” I describe the pieces and have an invoice in 10 seconds.”

Rachel H.
Freelance Writer & Content Strategist

A typical day for writers/authors

Content writer Naomi works on 5 retainers and 2-3 one-off projects per month. Retainer invoicing: 5 monthly invoices auto-generated on the 1st (each ~$4,500/month). One-off projects: invoiced on completion with line-item per piece. Total monthly invoicing admin: 15-20 minutes vs 90+ minutes with Word templates and manual tax tracking. Plus year-end 1099 reconciliation: InvoiceQuickly's annual revenue summary matches against client 1099s automatically.

When InvoiceQuickly fits β€” and when it doesn't

InvoiceQuickly fits writers who: (1) work with 3+ regular clients on monthly or per-project billing, (2) bill via retainer agreements, (3) need clean records for self-employment tax purposes. Less ideal for writers working primarily on content marketplaces (Upwork, Contently) where the platform handles billing.

Last verified: April 2026

Create Your First Invoice in 5 Seconds

Describe your work in plain English. Our AI generates a professional, tax-compliant invoice instantly. Start free with 5 invoices.

Get Started Free

Writers/Authors Invoice Templates

Browse all 200+ templates β†’

Free Tools for Writers/Authors

Frequently Asked Questions

Can I invoice with per-word rates?

Yes. Describe the word count and rate β€” '3,000 words at $0.12/word' β€” and the AI calculates the total and creates a properly formatted invoice.

How do I bill for extra revisions?

Add revision charges to your description: 'Additional revision round beyond scope, 2 hours at $75/hr.' The AI creates a clear line item separate from the original project fee.

Can I invoice for a kill fee?

Yes. Describe the cancellation: 'Kill fee for cancelled feature article, 50% of agreed $1,200 fee per contract.' The AI generates a professional invoice that references the original agreement.

Does it work for ghostwriting and book projects?

Absolutely. Describe milestone payments, chapter deliverables, or retainer arrangements. The AI handles long-term project billing with ease.

Get invoicing tips for writers/authors

Join thousands of writers/authors who get weekly invoicing tips, tax advice, and product updates.

No spam, ever. Unsubscribe anytime.

Invoice Software for Writers & Authors β€” Free AI Generator | InvoiceQuickly