---
name: start-side-business
description: |
  Guides the user through launching a side business from idea validation
  through first customer acquisition, chaining business planning, pricing,
  tax structure, budgeting, content marketing, and outreach skills across
  four categories.
  Use when the user wants to start a side hustle, launch a small business,
  or build a revenue stream alongside their primary employment.
  Do NOT use for scaling an existing business, raising venture capital,
  or transitioning from side business to full-time (use switch-careers instead).
license: Apache-2.0
metadata:
  author: foundry-skills
  version: "1.0.0"
  tags: "entrepreneurship planning strategy step-by-step"
  category: "business-operations"
  depends: "idea-validation business-plan freelance-rate-calculator self-employment-tax budget-planning blog-post-writing cold-outreach-email"
  disclaimer: "educational-finance"
  difficulty: "intermediate"
---

# Start a Side Business

This workflow spans: **business**, **career-development**, **personal-finance**, and **writing** (4 categories).

This workflow references personal finance skills for educational purposes only. It is not financial advice. Consult a qualified tax professional for tax structure decisions specific to your jurisdiction.

**Estimated time:** 4-12 weeks (depending on business type and validation speed)

**Cross-domain constraint note:** Decisions in one domain constrain options in others. Your tax structure decision (personal-finance) constrains your business entity choice (business), which constrains your contract and invoicing approach (career-development). This workflow sequences steps to make upstream decisions before downstream ones depend on them.

## When to Use

- User wants to start a business while keeping their day job
- User has a business idea and wants a structured launch process
- User wants to earn revenue from a side project within 1-3 months
- Do NOT use when: starting a full-time business (different risk profile), scaling an existing business, or seeking venture capital funding

## Prerequisites

Before starting this workflow, ensure:

1. A business idea exists (even a rough one -- Step 1 will validate or refine it)
2. Current employment status understood (check for non-compete or moonlighting clauses)
3. Available time per week for the side business estimated (5-15 hours is typical)
4. Basic understanding of whether this is a product or service business

## Steps

**Step 1: Validate the Business Idea** (uses: idea-validation)

Test whether the business idea has real market demand before investing time and money. This step prevents the most common side business failure: building something nobody wants to pay for.

- Input: Business idea description, target customer description, competitive landscape awareness, time and budget constraints
- Output: Validated or invalidated idea with evidence, target customer persona, competitive positioning, minimum viable offering definition
- Key focus: Talk to potential customers before building anything. Validate that people will pay, not just that they find it interesting. Identify the specific problem you solve and confirm it is painful enough for the target customer to pay to solve. If validation fails, iterate the idea or pivot before proceeding.

**Step 2: Create the Business Plan** (uses: business-plan)

Build a lean business plan focused on the side business context: limited time, bootstrapped funding, and an existing income safety net. This is not a traditional 30-page business plan -- it is a focused action document.

- Input: Validated idea from Step 1, available time per week, startup budget, revenue target for first 6 months
- Output: One-page business plan covering: value proposition, target market, revenue model, cost structure, 6-month milestone plan, key metrics to track
- Key focus: Keep the plan lean. A side business plan should fit on one page. Focus on: what you sell, who buys it, how much they pay, what it costs you (time and money), and when you expect to break even. Set a "kill criteria" -- if you have not reached a specific milestone by a specific date, re-evaluate the business.

**Step 3: Set Your Pricing** (uses: freelance-rate-calculator)

Determine pricing that covers costs, compensates your time fairly, and positions you competitively in the market. Pricing is one of the most consequential early decisions because it is difficult to raise prices significantly after launch.

- Input: Business plan from Step 2, competitive pricing research, time investment per unit of work, target monthly revenue, cost of goods or service delivery
- Output: Pricing structure (hourly, project-based, subscription, or per-unit), price point with rationale, pricing tier options if applicable, break-even analysis
- Key focus: Price based on value delivered, not just time invested. Research what competitors charge and position yourself deliberately (premium, competitive, or undercut). For service businesses: calculate your effective hourly rate after accounting for non-billable time (marketing, admin, communication). For product businesses: include all costs (materials, shipping, platform fees, returns).

**Step 4: Establish Tax Structure** (uses: self-employment-tax)

Set up the tax foundation for your side business income. This step must happen early because the tax structure you choose constrains the business entity decision and affects how you invoice, track expenses, and file taxes.

- Input: Expected annual side business revenue, current employment income, state/country of residence, business type (service vs. product)
- Output: Recommended tax structure (sole proprietorship, LLC, S-Corp consideration threshold), estimated quarterly tax obligations, deductible expense categories, record-keeping requirements
- Key focus: Most side businesses start as sole proprietorships (simplest, no formation required). Understand the self-employment tax implications: you pay both employer and employee portions of payroll taxes on business income. Track all business expenses from day one -- deductions reduce taxable income. Set aside 25-30% of business revenue for taxes. Consult a tax professional before forming an LLC or electing S-Corp status, as the benefits depend on revenue level and jurisdiction.

**Step 5: Set Up Business Finances** (uses: budget-planning)

Create a separate financial system for the side business that keeps business and personal finances cleanly separated. This step prevents the most common financial mistake side business owners make: mixing personal and business money.

- Input: Tax structure from Step 4, startup costs from Step 2, pricing from Step 3, personal financial situation
- Output: Business budget with startup costs, monthly operating expenses, revenue targets by month, separate business bank account setup, expense tracking system, quarterly tax payment schedule
- Key focus: Open a separate bank account for the business (even a sole proprietorship benefits from this). Track every business expense with receipts from day one. Set up a simple accounting system (spreadsheet is fine initially). Create a monthly review routine: revenue vs. target, expenses vs. budget, tax set-aside verification. Do not commingle personal and business funds.

**Step 6: Create Marketing Content** (uses: blog-post-writing)

Produce foundational marketing content that demonstrates your expertise and attracts potential customers. Content marketing is the most cost-effective customer acquisition channel for bootstrapped side businesses.

- Input: Target customer persona from Step 1, value proposition from Step 2, competitive positioning, areas of expertise
- Output: 3-5 foundational content pieces (blog posts, guides, or case studies) that address specific problems your target customers have, published on your platform of choice
- Key focus: Write content that solves a real problem for your target customer. Each piece should demonstrate your expertise while naturally leading to your paid offering. Prioritize search-optimized content that generates organic traffic over time. Focus on quality over quantity -- 3 excellent pieces outperform 10 mediocre ones. Include clear calls to action in each piece.

**Step 7: Acquire Your First Customers** (uses: cold-outreach-email)

Execute a targeted outreach campaign to convert your first paying customers. This step turns the validated idea and marketing foundation into actual revenue.

- Input: Target customer list (from validation conversations in Step 1), marketing content from Step 6, pricing from Step 3, value proposition from Step 2
- Output: Outreach sequence (3-5 emails), personalized pitches for top 20 prospects, follow-up schedule, first 3-5 paying customers acquired
- Key focus: Start with warm leads: people you talked to during validation, people who engaged with your content, and referrals from your network. Personalize every outreach message -- reference the specific problem you know they have (from validation research). Follow up at least 3 times before moving on. Track conversion rates: if outreach response rate is below 10%, the messaging needs adjustment. Once you have 3-5 paying customers, shift focus from acquisition to delivery quality and testimonials.

## Decision Points

- **After Step 1:** If idea validation fails (no evidence of willingness to pay), do not proceed to Step 2. Either iterate the idea based on validation feedback or start over with a new idea. Proceeding with an unvalidated idea is the single most common cause of side business failure.
- **After Step 2:** If the business plan reveals that the time investment exceeds available hours, choose: reduce scope (offer fewer services/products), extend timeline, or find a way to free up more time. Do not overcommit time -- side business burnout undermines both the business and the day job.
- **After Step 3:** If competitive research reveals the market cannot support your target pricing, re-evaluate: can you differentiate to justify premium pricing, or should you reduce scope and costs to support lower pricing? Do not compete solely on price with a side business -- you cannot out-volume a full-time competitor.
- **After Step 4:** Tax structure decision (sole prop vs. LLC) constrains Step 5: an LLC requires a separate EIN, may require separate bank accounts, and has annual filing requirements. If forming an LLC, budget for formation costs ($50-$800 depending on state) and annual fees.
- **After Step 6:** If content is not generating any engagement after 4-6 weeks, reassess: is the content addressing the right problems? Is it published where the target audience actually looks? Pivot content strategy before investing in more outreach (Step 7).

## Failure Handling

- **Step 1 fails (idea does not validate):** This is a success, not a failure -- you avoided investing time in a bad idea. Analyze why: was the problem not painful enough, the target market too small, or the solution not compelling? Use these insights to iterate or pivot. Most successful businesses take 2-3 idea iterations before finding product-market fit.
- **Step 3 fails (cannot find a viable price point):** If the market price does not cover your costs and time, the business model needs to change. Options: reduce costs (automation, different suppliers), increase value (bundle services, add features), or target a different market segment willing to pay more.
- **Step 4 fails (tax implications are unexpectedly complex):** If your employment situation (stock options, non-compete, international income) creates complex tax scenarios, engage a tax professional before proceeding. The cost ($200-$500 for a consultation) prevents much larger mistakes.
- **Step 5 fails (startup costs exceed budget):** Reduce the minimum viable offering scope. Start with the simplest version that validates the model. Many successful side businesses started with zero capital: consulting, freelancing, digital products.
- **Step 7 fails (no customers after outreach campaign):** Diagnose: are prospects reading and not responding (messaging problem), not opening emails (targeting problem), or responding but not buying (pricing or trust problem)? Adjust the specific failure point. If all outreach attempts fail, return to Step 1 to re-validate demand.
- **Direction change (want to go full-time with the business):** Once monthly side business revenue consistently exceeds 50% of your day job income for 3+ months, the switch-careers workflow provides the structured transition process.

## Output Format

```
SIDE BUSINESS LAUNCH TRACKER
==============================

Business Name: ________________
Business Type: [ ] Product  [ ] Service  [ ] Digital Product
Categories Spanned: business + career-development + personal-finance + writing

Phase 1: Validation and Planning
  [ ] Step 1: Idea validated
      - Problem solved: ________________
      - Target customer: ________________
      - Validation evidence: ________________
  [ ] Step 2: Business plan complete
      - Revenue model: ________________
      - 6-month target: $______
      - Kill criteria: ________________

Phase 2: Structure and Finances
  [ ] Step 3: Pricing set
      - Price point: $______
      - Pricing model: ________________
  [ ] Step 4: Tax structure established
      - Entity type: ________________
      - Quarterly tax set-aside: ______%
  [ ] Step 5: Business finances separated
      - Business bank account: [ ] opened
      - Expense tracking: [ ] active
      - Tax payment schedule: [ ] set

Phase 3: Launch and Acquire
  [ ] Step 6: Marketing content published
      - Pieces published: ___/5
      - Platform: ________________
  [ ] Step 7: First customers acquired
      - Prospects contacted: ______
      - Customers acquired: ______
      - First revenue: $______

Status: [VALIDATING / PLANNING / LAUNCHING / OPERATING]
Monthly Revenue: $______  Target: $______
```

## Edge Cases

- **Non-compete clause in employment contract:** Review the clause carefully before Step 1. If the side business overlaps with your employer's domain, consult an employment attorney. Some non-competes are narrow and enforceable; others are broad and unenforceable. This is jurisdiction-specific.
- **International customers or remote service delivery:** Step 4 tax implications change if you receive income from international clients. Payment processing, invoicing currency, and potential foreign tax obligations add complexity. Consult a tax professional with international experience.
- **Physical product vs. digital product vs. service:** Step 3 pricing models differ fundamentally. Physical products have COGS and shipping costs. Digital products have near-zero marginal cost but high upfront creation time. Services are time-constrained but have the lowest startup cost.
- **Co-founding with a partner:** Add a partnership agreement review to Step 4. Define: equity split, decision-making authority, time commitments, exit terms, and what happens if one partner wants to quit. Get this in writing before any money changes hands.
- **Transitioning existing hobby to business:** Step 1 validation is different: you know the product/craft works, but you need to validate that people will pay what the product costs to produce (including your time). Many hobbies do not survive the transition to business pricing.

## Expected Outcome

When this workflow is complete, the user will have:

1. A validated business idea with evidence of market demand
2. A lean business plan with clear milestones and kill criteria
3. Pricing that covers costs and compensates time fairly
4. Tax structure established with quarterly obligations understood
5. Business finances cleanly separated from personal finances
6. Foundational marketing content attracting potential customers
7. First 3-5 paying customers acquired with a repeatable acquisition process
8. A functioning side business generating revenue alongside primary employment

## Example

**Input:** Software engineer wanting to start a freelance web development side business, available 10 hours per week, targeting small local businesses, with $500 startup budget.

**Output:**

**Step 1 (idea-validation):**
Interviewed 8 local small business owners. 5 of 8 have outdated websites and are frustrated with large agency pricing ($5,000-$15,000). Validated demand for "affordable website refreshes" at $1,500-$3,000 per project. Target customer: local businesses with 5-50 employees and websites over 3 years old.

**Step 2 (business-plan):**
One-page plan: build modern, mobile-responsive websites for local businesses at $2,000-$3,500 per project. Target: 2 projects per month at 10 hours per week (5 hours per project for simple sites). Revenue target: $4,000-$7,000/month within 6 months. Kill criteria: if less than 1 project per month by month 4, reassess.

**Step 3 (freelance-rate-calculator):**
Rate calculated: $2,500 average project at 8 hours = $312/hour effective rate (includes non-billable time). Competitive analysis: local agencies charge $100-$200/hour. Positioning: faster, more affordable, and more accessible than agencies for simple websites. Break-even: 1 project covers all monthly costs.

**Step 4 (self-employment-tax):**
Starting as sole proprietorship (simplest structure). EIN obtained for invoicing. Self-employment tax rate: 15.3% on net business income, plus income tax at marginal rate. Total tax set-aside: 30% of revenue. LLC evaluation: will reconsider at $50,000+/year revenue. Deductible expenses: hosting tools, design software, home office.

**Step 5 (budget-planning):**
Business bank account opened. Monthly costs: $50 (hosting/tools), $0 (working from home). Startup costs: $200 (domain, business cards, portfolio hosting). Expense tracker set up in spreadsheet. Quarterly estimated tax payments scheduled. Revenue tracking dashboard created.

**Step 6 (blog-post-writing):**
Published 4 blog posts on personal site: "5 Signs Your Business Website Needs a Refresh," "How Much Should a Small Business Website Cost," "Local SEO Basics for Small Business Owners," "Mobile-First: Why Your Customers Cannot Find You on Their Phones." Each post addresses a specific pain point identified in validation interviews.

**Step 7 (cold-outreach-email):**
Outreach to 25 local businesses with personalized emails referencing their specific website issues. 8 responses (32% response rate). 4 discovery calls scheduled. 2 projects signed ($2,500 and $3,000). Follow-up sequence sent to non-responders. Referral request sent to 2 new clients after project delivery.

**Result:** Freelance web development business launched in 6 weeks. First two clients acquired through direct outreach. Revenue in month 2: $5,500. Tax set-aside: $1,650. Net after expenses: $3,800. Time investment: 10-12 hours per week. Blog content generating 200+ monthly visitors and 1-2 inbound inquiries per month.
