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Schedule C for Handmade Sellers: A Worked Example

Gross receipts, materials-only COGS, inventory at cost — one maker's real year worked to the penny, and exactly what to hand your tax preparer.

MadeKeeper · July 31, 2026

If you sold anything handmade for money this year, there's a form with your name on it: Schedule C, "Profit or Loss From Business." It rides along with your regular 1040. The name sounds heavier than the thing is. For a maker who sells at fairs and online, Schedule C is mostly four numbers and a short list of receipts — and if you've kept decent records, handing it over is a calm afternoon, not a crisis. Here's what actually goes on it, in plain English, with one maker's real year worked all the way through.

The shape of the form

Schedule C has three parts that matter to you.

Subtract COGS and expenses from income, and what's left is your net profit. That's the number that flows onto your 1040 and gets taxed. Everything else is just getting those three parts right.

The one thing everybody gets wrong

Before the example, the single most misunderstood line on the whole form: your own labor is not a deduction. Not in cost of goods, not in expenses, not anywhere. As a sole proprietor you don't pay yourself a wage the way a company pays an employee, so the hours you spent pouring, sewing, or beading don't come off your income. It feels wrong the first time you hear it — that work was real. But the tax math treats your profit as your pay. You value your time when you're setting prices; you leave it out entirely when you're filing. Mixing those two up is the most common way a maker's return goes sideways.

So when we say "cost of goods," we mean materials — the beads, the wax, the fabric, the packaging that physically went into what you sold. Not your time.

A real year, worked through

Meet a beaded jewelry maker. She sells at weekend markets and on Etsy, plus a couple of small wholesale orders to a boutique. Here's her year.

Part I — Income.

Part III — Cost of Goods Sold. This is where inventory-at-cost lives, and it trips people up, so go slow.

Cost of goods sold is beginning inventory plus purchases, minus what's left at the end:

$600 + $2,900 − $850 = $2,650. That's Line 42, and it carries up to Line 4.

Part II — Expenses. The business costs that aren't materials.

ExpenseLineAmount
Car — 1,240 business miles × $0.709$868
Booth and show fees27a$840
Etsy and card processing fees17$610
Supplies (tools, tape — not in inventory)22$95
Advertising8$60
Total expenses (Line 28)$2,473

That $4,237 is what she actually earned, and it's what gets taxed — added to her other income on the 1040, and, because it's over $400, also carried to Schedule SE for self-employment tax. One clean number, built from records she kept all year.

Notice what did the heavy lifting: a materials cost she could track per piece (so beginning and ending inventory were real, not guesses), her mileage log, and her fee statements. None of it required an accountant to invent. It required writing things down.

The second tax nobody warns you about

That net profit gets taxed twice, in a sense, and it catches first-year makers off guard. It's added to your household income and taxed at your regular rate — but it also carries self-employment tax on top, which covers the Social Security and Medicare a normal job splits with an employer. You're the employer now, so you pay both halves: 15.3% on most of the profit.

On her $4,237, self-employment tax runs roughly $599 (the tax applies to about 92.35% of net profit). You get half of that back as an adjustment on the 1040, so it's not as steep as it first looks — but it's real, and it's why a maker who "only cleared four grand" can still owe several hundred dollars they didn't set aside. A rough rule that keeps you out of trouble: park about a quarter to a third of your net profit for taxes as you go, and you'll rarely be surprised in April.

Estimated taxes, gently

One more thing that trips up a growing maker: if you expect to owe about $1,000 or more for the year, the IRS wants it in quarterly installments, not one lump in April. Fall behind and there's a small underpayment penalty. It's not a reason to panic in year one — a side hobby clearing a few hundred dollars isn't going to trigger it — but if your maker income is climbing into real money, ask your preparer whether quarterly estimates make sense. Setting aside that quarter-to-a-third as you go is exactly what funds them.

Common mistakes to skip

The handful of errors that cost makers the most time or money:

What your preparer actually needs from you

Whether you file yourself or hand it to someone, the packet is short:

  1. Total gross receipts for the year, and refunds separately.
  2. Beginning inventory at cost (last year's ending number, if you have it) and ending inventory at cost — which means a December 31 count of materials and unsold stock, valued at what you paid.
  3. Total purchases of materials for the year.
  4. Business mileage — total miles, not a dollar figure. Your preparer applies the year's IRS rate.
  5. Fees paid — booth and application fees, Etsy, Square, PayPal, whatever platform took a cut.
  6. Other business costs — tools, packaging bought separately, advertising, a portion of your phone or home workspace if it applies.

Hand over those six things with clear date ranges — January 1 through December 31 — and your preparer has everything for the form. If you switched tools partway through the year, stitch both halves together so the totals cover the whole year with no gap and no overlap. A preparer's least favorite surprise is a set of numbers that stops in June.

"Is my craft even a business?"

Quick, calm answer: if you're selling to make money and you keep books, the IRS treats it as a business, and it goes on Schedule C. The "hobby" question mostly matters if you lose money year after year with no real attempt to turn a profit — a different situation from a working maker having a slow year. Don't let the word scare you off the form. Filing a Schedule C with a modest profit is the most ordinary thing a small maker does. It's also what lets you deduct the booth fees and mileage in the first place.

Make tax season a report, not a reckoning

The whole reason this is calm instead of frightening is the records. Gross receipts, materials cost per piece, an inventory count, a mileage log, fee statements — keep those through the year and the form fills itself out. MadeKeeper's year-end packet maps straight to this: a profit-and-loss summary, inventory valued at cost, and totals you can pull for the year, a quarter, or any custom date range, ready to hand over. Open the app — it's free during the founding pilot and the packet is waiting when you need it.

And if beaded and assembly work is your thing specifically, with its bead-soup of findings and its earring-card packaging, here's how MadeKeeper handles jewelry makers' inventory so the January 1 and December 31 counts are already done.

Tax season is just a report now. Keep the records; the form is easy.