Industries We Serve • E-Commerce

Bookkeeping and tax built for how online sellers actually operate.

Sales tax nexus, inventory valuation, and multi-channel reconciliation for Amazon, Shopify, Walmart, Etsy, and TikTok Shop sellers.

Multi-Channel Sales
Industries We Serve

Tax & bookkeeping built for how e-commerce actually operates

E-commerce brings a specific set of tax and bookkeeping problems that a generalist accountant often misses: inventory that has to be valued correctly, sales tax obligations that can trigger in states you have never set foot in, and payment processor fees that need to be separated cleanly from actual revenue. Hasco Tax Advisors works with online sellers on Amazon, Shopify, Walmart Marketplace, Etsy, and TikTok Shop, handling the bookkeeping and tax details that are unique to selling across multiple channels at once.

E-Commerce Tax Issues

The tax questions that come up specifically for online sellers

Sales tax nexus, the issue that catches most sellers off guard

Since the 2018 Supreme Court decision in South Dakota v. Wayfair, states can require you to collect sales tax once you cross a revenue or transaction threshold in that state, even with no physical presence there. Most sellers on Amazon FBA discover this the hard way, since Amazon's fulfillment network can create "physical nexus" simply by storing your inventory in a state's warehouse.

Marketplace facilitator laws, and what they do and don't cover

Amazon, Walmart Marketplace, Etsy, and TikTok Shop are all required to collect and remit sales tax on your behalf in most states under marketplace facilitator laws. Shopify does not do this automatically for your own direct store, since you are the seller of record there, not a marketplace. Selling across multiple channels means tracking which platforms handle this for you and which do not.

Inventory valuation and cost of goods sold

Your inventory on hand at year-end directly affects your taxable profit. Overstating or understating inventory value, a common error when it is tracked loosely in a spreadsheet, distorts your cost of goods sold and either overstates or understates your tax liability.

Reconciling five different payout structures

Amazon, Shopify, Walmart, Etsy, and TikTok Shop each pay out on different schedules with different fee structures deducted before you ever see the deposit. Treating a bank deposit as your revenue, instead of reconciling it against gross sales, fees, and refunds on each platform, is one of the most common bookkeeping errors for multi-channel sellers.

Bookkeeping Workflow

How multi-channel e-commerce bookkeeping actually gets reconciled

Multi-Channel Reconciliation

Amazon, Shopify, Walmart, Etsy, and TikTok Shop payouts reconciled against actual bank deposits, separating gross sales, fees, refunds, and chargebacks correctly for each channel.

Inventory Tracking

Cost of goods sold tracked against actual inventory levels, not estimated at year-end, so your margins reflect what actually happened, product by product.

Sales Tax Nexus Review

Your actual sales data reviewed to identify where you have crossed a state's economic nexus threshold, and which platforms already handle collection for you.

Consolidated Reporting

One consolidated set of books across every channel you sell on, instead of five disconnected platform reports.

Bookkeeping and tax prep built for how you actually sell
Pricing is based on your monthly order volume and number of sales channels, quoted flat-rate during your free consultation.
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Frequently Asked Questions

E-commerce tax and bookkeeping, answered directly

Not automatically. You generally owe sales tax collection once you establish nexus in a state, either through physical presence (including Amazon FBA inventory storage) or by crossing that state's economic nexus threshold. We review your actual sales data to identify where you have nexus.
Largely, yes. Marketplace facilitator laws require these platforms to collect and remit sales tax on marketplace sales in most states. Shopify does not do this automatically for your own direct store, since you are the seller of record there, not a marketplace. We help sort out exactly what is and is not covered across your specific channels.
Unsold inventory is an asset on your balance sheet, not an expense, until it is actually sold. Only the cost of inventory that was sold during the year reduces your taxable income through cost of goods sold.
Yes. Multi-channel sellers are the norm, not the exception, and we consolidate all platforms into one set of reconciled books, so you see one true picture of your business rather than separate, disconnected reports per channel.
Most online sellers start as an LLC and consider an S-Corp election once profit is consistent and clears a meaningful threshold, typically $45,000 to $60,000 in net profit. We review your specific numbers before recommending a structure.
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