Tax Deductions for E-commerce: What Owners Commonly Miss
Last updated: October 17, 2026Written by Shane Atkins, founder of TaxSaver Pro
E-commerce sellers stack up inventory, shipping, and platform fees, with costs spread across every order. It's easy to let a recurring cost go uncaptured. This guide walks through the deductions e-commerce owners most often miss.
Commonly missed deductions
01Inventory and supplies
- What qualifies
- Stock, packaging, and shipping materials.
- What doesn't qualify
- Inventory still on hand at year end, items taken from inventory for personal use, and sales tax you collect from customers (that money belongs to the state, not you).
- Records to keep
- Purchase invoices, beginning and ending inventory counts, the method you use to value inventory, and receipts for packaging and store or shipping supplies.
- IRS source
- IRS Publication 535 — Business Expenses
02Home office
- What qualifies
- Space for operations, listing, and fulfillment admin.
- What doesn't qualify
- Space also used for personal or family purposes, occasional or incidental work at home, and costs for parts of the home not used for business. W-2 employees working from home generally can't take this deduction on their federal return.
- Records to keep
- Measurements of the office and of the whole home, a photo or floor plan of the space, and, if you use the regular method, rent or mortgage interest statements, utility bills, homeowner's or renter's insurance, and repair receipts.
03Software and subscriptions
- What qualifies
- Store platform, ads, and analytics.
- What doesn't qualify
- Personal subscriptions (streaming, personal apps, personal cloud storage) and the personal-use share of anything used for both.
- Records to keep
- Invoices or account statements, and a short note on the business purpose for any subscription where it isn't obvious.
- IRS source
- IRS Publication 535 — Business Expenses
04Shipping and fulfillment
- What qualifies
- Postage, labels, and warehouse costs.
- What doesn't qualify
- Personal packages, and freight you pay to receive inventory from suppliers (that's added to the cost of your inventory, not deducted as shipping).
- Records to keep
- Carrier account statements, postage and label receipts, fulfillment or warehouse invoices, and order records that match shipping charges to sales.
- IRS source
- IRS Publication 535 — Business Expenses
05Marketing
- What qualifies
- Ads, content, and customer acquisition.
- What doesn't qualify
- Political campaign contributions or ads, lobbying, and promotion of personal (non-business) accounts or activities.
- Records to keep
- Invoices, ad platform statements, and copies or screenshots of the ads or campaigns.
- IRS source
- IRS Publication 535 — Business Expenses
Records checklist
A summary of every record mentioned on this page. Keep these with your tax return.
- Inventory and suppliesPurchase invoices, beginning and ending inventory counts, the method you use to value inventory, and receipts for packaging and store or shipping supplies.
- Home officeMeasurements of the office and of the whole home, a photo or floor plan of the space, and, if you use the regular method, rent or mortgage interest statements, utility bills, homeowner's or renter's insurance, and repair receipts.
- Software and subscriptionsInvoices or account statements, and a short note on the business purpose for any subscription where it isn't obvious.
- Shipping and fulfillmentCarrier account statements, postage and label receipts, fulfillment or warehouse invoices, and order records that match shipping charges to sales.
- MarketingInvoices, ad platform statements, and copies or screenshots of the ads or campaigns.
Related guides
Go deeper on the rules behind these deductions
Educational guidance only, not tax advice. Talk to a tax professional about your situation.