Tax season hits different when you're moving hundreds of minifigures and sets. Most LEGO resellers leave money on the table because they don't track expenses properly or miss obvious deductions. The IRS treats your LEGO business like any other business, which means you get business tax benefits. But you also get business tax responsibilities. This guide covers everything from what counts as a deductible expense to how much profit triggers tax obligations. Get it right from the start and keep more of what you earn.
Business vs hobby classification
The IRS cares whether you're running a business or just selling extras from your collection. If you're buying inventory to resell at a profit, you're probably a business. The key test is profit motive. Document your business activities: keep purchase records, track time spent, maintain inventory lists, and show you're trying to make money.
Hobby income still gets taxed, but you can't deduct expenses against other income. Business losses can offset your day job income.
Essential expense tracking
Track every business expense from day one. Deductible expenses include inventory costs, shipping supplies, storage fees, selling platform fees, gas for buying trips, and even a portion of your home if you use it for storage.
Set up a separate business bank account and credit card. This makes tracking automatic and shows the IRS you're serious. Save all receipts digitally. A simple spreadsheet works, but accounting software like QuickBooks makes tax time easier.
Inventory and cost of goods sold
You can't deduct inventory costs when you buy. You deduct them when you sell as "cost of goods sold." This means tracking what you paid for each item.
For bulk purchases, allocate costs based on estimated values. If you buy a collection for $500 and estimate it contains $1000 worth of sellable items, each dollar of sales carries 50 cents of cost.
Keep detailed records: purchase date, amount paid, items acquired, and sales prices. This documentation protects you in audits.
Self-employment tax obligations
Once you make $400 profit in a year, you owe self-employment tax on top of income tax. Self-employment tax is 15.3% of your profit, covering Social Security and Medicare.
Make quarterly estimated payments if you expect to owe more than $1000 for the year. The IRS charges penalties for underpayment, even if you file on time.
Record keeping best practices
Maintain three types of records: financial records showing all income and expenses, inventory records tracking what you buy and sell, and business activity logs proving profit motive.
Keep records for at least three years after filing. If the IRS suspects underreported income by 25% or more, they can go back six years.
Photograph valuable items when you acquire them. This documents condition and proves ownership if questioned.
Related reading
FAQ
Do I need to pay taxes on small amounts of LEGO sales?
Yes, all income is taxable. Even selling $50 worth of personal collection items creates taxable income. The good news is hobby sales under $400 profit don't trigger self-employment tax.
Can I deduct the cost of LEGO sets I buy for personal use?
No, personal purchases aren't deductible business expenses. Only inventory bought specifically for resale counts as cost of goods sold. Keep business and personal purchases separate.
What happens if I get audited as a LEGO reseller?
The IRS will want to see records proving your income, expenses, and business activities. Keep detailed purchase receipts, sales records, inventory tracking, and photos of valuable items. Good records make audits manageable.
Should I form an LLC for LEGO reselling?
An LLC provides liability protection and can offer tax benefits, but adds complexity and costs. For most small resellers, operating as a sole proprietorship is simpler. Consult a tax professional as your business grows.
How do I handle sales tax on LEGO sales?
Sales tax requirements vary by state and platform. Some states require sales tax registration once you hit certain thresholds. eBay and other platforms may collect sales tax automatically, but you're still responsible for compliance.
Stop losing money to poor record keeping. Brickem.io tracks your inventory costs automatically, making tax season painless. Start scanning free and see exactly what each sale really nets you after expenses.
