Quick Answer: Ghostwriting a book typically takes 3 to 12 months, depending on the book’s length, genre, research depth, and the ghostwriter’s workload. A short non-fiction book (20,000–40,000 words) can be completed in 2–4 months, while a full-length novel or memoir (60,000–90,000 words) usually takes 6–12 months from start to final draft.
Average Ghostwriting Timeline by Book Type
| Book Type | Word Count | Estimated Time |
|---|---|---|
| Short eBook / Lead Magnet | 10,000–20,000 | 4–8 weeks |
| Business / Self-Help Book | 30,000–50,000 | 3–5 months |
| Memoir / Biography | 50,000–80,000 | 5–9 months |
| Full-Length Novel | 70,000–100,000 | 6–12 months |
| Thought Leadership Book | 40,000–60,000 | 4–7 months |
Key Factors That Affect Ghostwriting Time
1. Book Length and Complexity
A longer or research-heavy book naturally takes more time. Technical, academic, or historical topics require extensive fact-checking, which adds weeks to the schedule.
2. Author Collaboration Speed
Ghostwriting is a two-way process. If the author responds to interviews, outlines, and chapter drafts quickly, the project moves faster. Delayed feedback can extend the timeline by months.
3. Research Requirements
Memoirs, biographies, and non-fiction books often need interviews, source gathering, and background study. This phase alone can take 3–6 weeks.
4. Revisions and Editing Rounds
Most ghostwriting projects include 2–3 revision rounds. Each round typically adds 2–4 weeks before the manuscript is finalized.
5. Ghostwriter’s Experience and Availability
A full-time professional ghostwriter can deliver faster than a freelancer juggling multiple projects. Experienced ghostwriters also require fewer revisions.
Typical Ghostwriting Process (Step-by-Step)
- Discovery & Planning – 1 to 2 weeks
- Research & Interviews – 2 to 6 weeks
- Outline Approval – 1 to 2 weeks
- First Draft Writing – 2 to 6 months
- Revisions & Feedback – 3 to 6 weeks
- Final Edit & Proofreading – 2 to 4 weeks
Total: Approximately 4 to 10 months for most standard projects.
Can a Book Be Ghostwritten Faster?
Yes. Rush ghostwriting services can deliver a 30,000-word book in 4–6 weeks, but this usually costs 30–50% more and requires the author’s full-time availability for interviews and approvals.
How Long Does It Take to Ghostwrite a Memoir vs. a Novel?
- Memoir: 5–9 months (depends on interview sessions and personal story depth)
- Novel: 6–12 months (depends on plot complexity and character development)
- Business Book: 3–5 months (fastest category due to structured content)
Final Answer
On average, professional ghostwriters take 4 to 8 months to deliver a polished, publish-ready book of 50,000 words. Shorter projects can be completed in 6–10 weeks, while complex memoirs or novels may require up to a year. The timeline ultimately depends on the author’s responsiveness, the depth of research, and the number of revision rounds agreed upon in the contract.
Pro Tip: Always ask your ghostwriter for a written timeline with milestones before signing — it keeps both parties accountable and ensures on-time delivery.