Good records make tax preparation easier and help you understand how your online store is performing. Keep documents as you go instead of trying to reconstruct a year of activity later. Save reports from each sales channel, match deposits to transactions, and organize receipts by category. The exact records and retention periods can depend on your business structure and tax situation, so confirm requirements with a qualified tax professional.
Orders, refunds, and sales tax
Keep order-level reports from every marketplace and your own website. Make sure each report shows the order date, items sold, quantities, discounts, shipping charged, customer location, and payment status. Save monthly summaries too, but do not rely on summaries alone if they omit transaction details. Consistent exports make it easier to compare sales across channels and investigate differences.
Record refunds, returns, chargebacks, and cancellations separately from sales. Preserve the date, amount, reason when available, and any related order number. Keep documentation for sales tax collected, reported, and remitted, including returns or adjustments. Reconcile these records with platform reports and bank deposits so you can distinguish gross sales from money paid to your business.
Platform fees and payouts
Save statements showing marketplace commissions, payment processing charges, advertising costs, subscription fees, and other platform deductions. These charges can reduce a payout without reducing the amount of sales shown in an order report. Keep the original statements or downloadable reports, along with invoices for recurring services, and label each expense consistently in your bookkeeping system.
Match each payout to the transactions and fees that produced it. Record the payout date, amount, account received, and any reserve or adjustment held back by the platform. If a deposit does not match your expected total, check for timing differences, refunds, fees, or withheld funds before changing your books. A simple monthly reconciliation helps surface errors while the details are still easy to find.
Inventory, purchases, and expenses
Maintain records of inventory on hand and changes during the year. Keep supplier invoices, purchase orders, shipping and customs documents, and records of damaged, donated, or written-off items. Document inventory counts with the date and method used. Track product costs and quantities consistently so you can support the figures used in your accounting and tax preparation.
Save receipts and invoices for business expenses such as packaging, postage, software, storage, advertising, and professional services. Note the business purpose when it is not obvious from the document. For mixed personal and business purchases, record the business portion and how you calculated it. Store digital copies in clearly named folders, and keep payment confirmations or bank statements as supporting evidence.
Tax filings and year-round organization
Keep copies of filed federal, state, and local tax returns, payment confirmations, notices, and supporting schedules. Save sales tax returns and proof of payments for the relevant jurisdictions, along with registration records and marketplace tax reports. Keep payroll or contractor tax documents if they apply to your business. Organize records by tax year so you can retrieve the documents behind each return.
Set a monthly routine: download platform reports, enter expenses, reconcile payouts, review inventory changes, and back up files. Use filenames that include the date and document type, and restrict access to sensitive customer and financial information. Retention rules vary by document and situation, so ask your tax professional how long to keep each category. Bull City Ecommerce Tax can help Durham-area sellers review their recordkeeping approach.
Reliable ecommerce tax records start with a repeatable routine, not a year-end scramble. Keep transaction reports, supporting documents, and reconciliations together, then review them regularly for gaps. If you are unsure which records fit your store or how to organize them, consider speaking with a qualified ecommerce tax professional.