How to Budget Startup Costs for a Garage Business
A garage business can start small, but it still costs money. Writing those costs down before you buy anything is the easiest way to avoid a half-finished shop and a maxed-out credit card. This guide walks through a simple startup budget you can build in an afternoon with a spreadsheet or a notebook.
Split your costs into two lists
The U.S. Small Business Administration suggests separating one-time costs from ongoing ones. One-time costs are what you spend to open the doors: major equipment, a logo, permits, licenses and fees. Ongoing costs repeat every month, such as utilities, subscriptions, insurance and supplies. Keeping them apart shows you two different numbers: how much cash you need to launch, and how much you need each month to keep going.
Typical one-time costs for a garage business
- Tools and equipment (the biggest line for most makers)
- Workspace upgrades: lighting, shelving, a workbench, extra outlets installed by a licensed electrician, ventilation or dust collection
- Safety gear: eye and hearing protection, respirators where needed, a fire extinguisher, a first aid kit
- Business registration, local permits and licenses
- Starting inventory and raw materials
- Branding basics: a simple logo, business cards, a website or shop setup
- Product photography setup
Typical monthly costs
- Materials and packaging for each month’s orders
- Platform and payment fees (Etsy, Shopify, card readers)
- Business insurance premiums
- Software subscriptions such as bookkeeping or design tools
- Extra electricity and internet costs
- Shipping supplies and postage
- Advertising, craft fair booth fees and mileage
How to estimate what you can’t look up
Some numbers are published: your city lists its permit fees, and suppliers list their prices. Others you have to estimate. The SBA recommends researching online and asking mentors, vendors and service providers what similar businesses pay. For a garage business, that might mean asking a local insurance agent for a quote, calling your county about permit fees, and pricing equipment from two or three suppliers instead of one.
Write every estimate as a range, note where it came from, and date it. Prices change, and you’ll want to know later whether a number was a real quote or a guess.
Add a cushion
Something always costs more than planned. The SBA suggests adding about 10% to your estimates to cover expenses you didn’t predict. If your first-month total comes to $2,000, plan for about $2,200.
It also recommends planning for at least a year of monthly expenses. For a side business that might mean setting aside enough to cover materials, fees and insurance for several months even if sales start slowly.
Find your break-even point
Once you know your costs, you can work out how many sales it takes to cover them. The SBA’s break-even formula is: fixed costs divided by (price minus variable costs per unit) equals the number of units you need to sell.
Here’s a made-up example to show the math. Say your monthly fixed costs (insurance, software, booth fees) are $300. You sell a product for $40, and each one costs $15 in materials, packaging and fees. That leaves $25 per sale toward fixed costs, so $300 ÷ $25 = 12 sales a month to break even. Your own numbers will be different; plug in real quotes.
Buy in stages, not all at once
Many garage businesses fail to launch because the owner buys every tool before selling a single item. A better plan is to list the minimum you need to make and sell your first product safely, buy that, and add equipment once sales justify it. Keep a wish list for later upgrades so you don’t lose track of good ideas.
Know how startup costs are treated at tax time
Federal tax rules handle startup costs differently from normal running expenses. According to the IRS instructions for Schedule C (2025 tax year), a business can elect to deduct up to $5,000 of certain startup costs in the year it begins. That $5,000 limit shrinks when total startup costs go over $50,000, and the rest can be deducted (amortized) over 180 months starting with the month the business began. Equipment can follow different rules again.
This is general information only. Tax rules change and depend on your situation, so check IRS guidance or talk with a tax professional before filing. Keep every receipt from day one; it makes this much easier.
How to pay for it
The SBA lists several funding routes, from self-funding with savings to small business loans and crowdfunding. Most garage businesses start with savings and grow from early sales. If you borrow, compare offers carefully and be wary of tapping retirement accounts, which can carry penalties and fees.
A one-page budget checklist
- List one-time costs, each with a low and high estimate and a source
- List monthly costs the same way
- Add 10% to each total as a cushion
- Work out your break-even number of sales per month
- Mark which purchases can wait until after your first sales
- Set up a separate folder or account for every business receipt
More on Garage Business Blueprint
- How to Set Up a Safe, Workable Garage Workspace for Your Business
- Taxes for a Garage Business: Self-Employment Tax, Quarterly Payments and the Home Office Deduction
- Bookkeeping Basics for a Garage Business: A Simple System That Works
