Your bank balance and your actual revenue are not the same number — and if you're selling online through Shopify, Amazon, Etsy, or some combination of all three, that difference matters more than it looks. The money that lands in your account has already been through several rounds of subtraction before you ever see it. Platform fees, payment processing fees, refunds, and chargebacks are all netted out before a payout hits your bank, which means the deposit you see is not your revenue. Treating it as if it were is the single most common e-commerce bookkeeping mistake we see from online sellers in Oregon and Arizona, and it's why specialized ecommerce bookkeeping in Oregon and ecommerce bookkeeping in Arizona looks different from standard retail bookkeeping.
If you record a $3,000 Shopify payout as $3,000 in sales, you've actually recorded a net figure as a gross one — and buried your processing fees, refunds, and any reserve holds inside your revenue line instead of tracking them as separate expenses. That makes your true margin look better than it is, and it makes it nearly impossible to catch a fee increase or a spike in refunds until it's already done real damage. The fix is to record gross sales, then list fees, refunds, and chargebacks as their own expense lines. Most e-commerce platforms provide a payout report that breaks this down — it just has to actually be used. This is the foundation of clean ecommerce bookkeeping in Oregon and Arizona, where we see a growing number of sellers juggling multiple platforms at once.
For product-based sellers, cost of goods sold (COGS) should be tracked at the SKU or product-line level whenever possible, not as a single blended number. This matters more than it sounds like it should: a seller with ten SKUs can have three that are highly profitable and three that are quietly losing money on every sale, and a blended COGS number hides that completely. Track COGS by product line or SKU, not just in aggregate. Reconcile inventory counts against your accounting system periodically — not just once a year. If you sell across multiple channels, keep each channel's numbers separate before rolling them up, since fee structures and return rates typically differ by channel.
Every additional sales channel is another payout schedule, another fee structure, and another place for numbers to drift out of sync with reality. A simple monthly routine — reconcile each channel's payouts against its own sales report, then roll everything up into one set of books — keeps this manageable. Trying to reconcile everything at once, across all channels, at the end of the quarter is where most sellers give up and just trust the bank balance instead. That's also where profitable businesses start making decisions based on numbers that aren't actually true.
"The online sellers who stay profitable aren't guessing from their bank balance — they're reading gross revenue, real fees, and per-product margin every single month."
Oregon has no state sales tax, which simplifies things for sellers based there — but only for sales made in Oregon. Selling into other states can still create a sales tax collection obligation, known as economic nexus, once you cross that state's revenue or transaction threshold, regardless of where your business is located. Arizona-based sellers have the opposite starting point: in-state sales are generally subject to Arizona's Transaction Privilege Tax (TPT), which functions similarly to a sales tax and requires its own license and filing schedule. Either way, once you're selling across state lines online, nexus is worth reviewing with a bookkeeper — the rules are triggered by sales volume, not by where your business happens to be registered.
E-commerce bookkeeping comes down to three habits: record gross sales and track fees separately, know your margin by product rather than in aggregate, and reconcile each sales channel on a regular schedule instead of all at once. Get those three right and everything else — tax prep, cash flow planning, knowing which products to double down on — gets a lot easier. The sellers we work with across Portland, Bend, Phoenix, Scottsdale, Tucson, and Flagstaff usually tell us the same thing: once their books started showing the real story, their confidence in the business went up immediately.
At White Peaks Bookkeeping, we provide ecommerce bookkeeping in Oregon and ecommerce bookkeeping in Arizona for online sellers who need books that match the way e-commerce actually works. Whether you're running a Shopify store from Bend, selling handmade goods on Etsy from Eugene, or fulfilling through Amazon from Phoenix, we can build a monthly routine that separates gross from net, tracks your true product margins, and keeps every channel reconciled before the quarter gets away from you. If your bank balance has been telling you a story that feels too good to be true, let's fix it before tax season does.
