Business Plan Writer

---
name: business-plan-writer
description: Write complete business plans — executive summary, market analysis, financials, and investor-ready narratives.
category: business-marketing
---

## Overview

A business plan is a structured argument that an opportunity is real, the approach is sound, and the numbers work. This skill covers writing each section — executive summary, company description, market analysis, organization, product/service, marketing and sales strategy, financial projections, and appendix — for audiences like investors, lenders, or internal stakeholders.

Plans should be lean where possible: a 15-page focused plan beats a 60-page bloated one.

## When to use

- Raising investment (seed, Series A, small business loans)
- Applying for grants or business competitions
- Aligning co-founders on strategy
- Planning a major expansion or new venture
- Creating an internal strategy document

- Writing a one-page lean canvas before the full plan
- Creating franchise or licensing proposals
- Documenting strategy for a board of directors
- Applying for bank loans or SBA financing
- Recruiting co-founders with a concrete vision
- Entering business plan competitions
## Core concepts

**Executive summary.** Written last, read first. One to two pages: the opportunity, the solution, the market, the business model, traction, the team, and the ask. If a reader only reads this, they should understand the whole bet.

**Market sizing (TAM/SAM/SOM).** Total Addressable Market → Serviceable Available Market → Serviceable Obtainable Market. Bottom-up sizing (customers × price) is far more credible than top-down ("1% of a trillion-dollar market").

**Business model clarity.** How money is made: pricing, unit economics, sales motion, key partnerships. Include CAC, LTV, gross margin, and payback period if known.

**Competitive positioning.** Direct and indirect competitors, their strengths/weaknesses, and your differentiation. A "we have no competitors" claim destroys credibility — the alternative is always "do nothing" or a workaround.

**Financial projections.** 3–5 year P&L, cash flow, and balance sheet highlights. Show assumptions explicitly. Investors discount the numbers but scrutinize the logic.

**Risk and mitigation.** Naming risks (market, execution, regulatory, financial) with mitigation plans builds more confidence than pretending they don't exist.


**Lean plan alternative.** For early-stage ventures, a one-page lean canvas (problem, solution, key metrics, unfair advantage, channels, cost structure, revenue streams) often beats a 40-page plan. Write the full plan when external stakeholders (investors, lenders) require it; use the lean version for internal alignment.

**Use of funds.** Investors scrutinize this section closely: tie every dollar to milestones ($500k → 12 months runway → $1M ARR and 50 enterprise customers). Vague allocations (marketing: $200k) signal unfocused thinking.

**Market sizing (TAM/SAM/SOM).** TAM: everyone with the problem. SAM: those you can reach with your channels. SOM: what you can capture in 3–5 years.
Bottom-up sizing (customers × price) beats top-down ("1% of a $50B market") — investors discount top-down math heavily.
Show your arithmetic; hidden assumptions destroy credibility.
**Risk section.** Name the top 5 risks honestly (market, execution, financial, competitive, regulatory) with mitigations.
Founders fear this section; investors respect it. A plan with no risks signals naivety, not confidence.
## Practical workflow

1. **Clarify audience and purpose.** An investor plan emphasizes returns and defensibility; a bank plan emphasizes repayment ability; an internal plan emphasizes execution. Tailor accordingly.
2. **Research the market.** Size TAM/SAM/SOM bottom-up. Profile 5–8 competitors. Document trends, regulations, and customer evidence (interviews, surveys, LOIs).
3. **Draft the narrative sections.** Company, product, market analysis, marketing/sales strategy, operations, team. Keep each tight — one clear point per paragraph.
4. **Build the financials.** Start from unit economics, then scale: revenue model → cost structure → monthly cash flow for year 1, annual for years 2–5. Include best/base/worst scenarios for key assumptions.
5. **Write the executive summary last.** Distill the strongest points. End with a clear ask (amount, use of funds, terms sought).
6. **Review and pressure-test.** Have someone skeptical read it. Fix every "so what?" and "says who?". Check that numbers tie across sections — inconsistent figures kill trust instantly.

**Standard structure:** Executive Summary → Company Description → Market Analysis → Organization & Management → Product/Service → Marketing & Sales → Financial Projections → Funding Request → Appendix.


**Financial narrative check:** for every major number, write one sentence explaining the driver (Revenue grows 3x in year 2 driven by enterprise expansion at $50k ACV). If you cannot explain a number's driver, the model needs work.

**Writing order:** financial model first (it exposes whether the story works) → market analysis → operations plan → then the narrative sections → executive summary last.
Writing the summary first produces fiction; writing it last produces a summary.
**Length guide:** 20–30 pages for investors, 10–15 for internal use, 1 page (lean canvas) for early validation.
Match length to audience — nobody asked for a longer plan than they will read.
## Common pitfalls

- **Hockey-stick projections without basis.** Explosive growth curves need a credible engine (proven CAC, viral loop, contracted revenue). Otherwise they're fiction.
- **Top-down market sizing.** "1% of $X trillion" is meaningless. Build from customers you can actually reach.
- **Ignoring competition.** Claiming no competitors signals you haven't looked. Name them and explain your edge.
- **Burying the ask.** Investors shouldn't hunt for how much you want and what it's for. State it clearly.
- **Inconsistent numbers.** Revenue in the summary must match the financials. Cross-check everything.
- **Too long.** If it takes an hour to read, it won't be read. Aim for clarity and brevity; put detail in the appendix.
- **No milestones.** Plans without dated milestones and KPIs are wishes. Tie funding to achievable checkpoints.
- **Appendix as dumping ground.** Hiding weak analysis in the appendix instead of fixing it. The appendix supports; it does not excuse.
- **No sensitivity discussion.** Presenting single-point forecasts as certainties. Show which 2–3 assumptions the plan hinges on.
- **Hockey-stick without drivers.** Revenue exploding in year 3 with no explanation of what causes the inflection. Every inflection needs a named driver.
- **Ignoring competition.** "We have no competitors" — the fastest way to lose credibility. Everyone has competitors, including the status quo.