TikTok Shop’s Growth Is Creating a Bookkeeping Backlog

TikTok Shop has added a marketplace-sized volume of transactions to the US ecommerce economy in under three years, and the accounting infrastructure around it has not caught up. That is the position of this piece, and the evidence for it is not anecdotal. The channel now moves enough money to matter on a brand’s income statement while remaining the channel most brands reconcile last, worst, or not at all.

The scale is no longer marginal

Momentum Works, working with Tabcut, published TikTok Shop in the U.S. 2025 in February 2026. Its headline finding was US gross merchandise value of US$15.1 billion in 2025, up 68 percent from US$9 billion in 2024. Globally the platform reached US$64.3 billion across 16 markets, growing 94 percent year on year, with Southeast Asia roughly doubling to US$45.6 billion.

Fifteen billion dollars is not a side channel. It is a line item that changes a brand’s revenue mix, its tax position and its inventory allocation, and it arrives with settlement mechanics that share almost nothing with Amazon’s.

The composition is the part that creates the bookkeeping problem. The same report found the US sales mix shifted toward live commerce, whose share of GMV rose from 10 percent to 14 percent, with short-form video at 50 percent and the Shop tab at 36 percent. Live commerce is high-velocity, high-refund, and heavily entangled with affiliate creator compensation. It generates a transaction pattern that a monthly summary journal entry cannot represent honestly.

The distribution is brutally concentrated

Momentum Works counted 803,500 US stores and 15.4 million influencers on the platform in 2025. More than half of those stores recorded no sales at all. More than 2,000 stores exceeded US$1 million in GMV.

That distribution explains why the bookkeeping problem is invisible in aggregate commentary. The median TikTok Shop seller has nothing to reconcile. The two thousand sellers above a million dollars have a serious reconciliation obligation, and most of them are also running Amazon, a Shopify store, and often Walmart or eBay at the same time. Their problem is not TikTok Shop accounting in isolation. It is a fourth settlement format arriving on a schedule that does not align with the other three.

Why this channel is harder than the others

Four structural features make TikTok Shop settlements more work per dollar than Amazon or Shopify.

Affiliate commission sits inside the transaction. When a creator drives a sale, the creator’s commission is deducted before settlement. That commission is a marketing expense, not a reduction in revenue, and treating it as the latter overstates your fee burden and understates both revenue and marketing spend. Sellers who net the whole settlement into a single revenue figure lose the ability to calculate return on creator spend at all, which is the one metric that determines whether the channel is worth running.

Returns cluster in time. Live commerce compresses purchase decisions into minutes. Buyer’s remorse follows the same compression, and refunds arrive in bursts that can land in a different settlement period from the original sale. Without an accrual treatment that recognises the sale and the refund in their proper periods, a good live event makes one month look extraordinary and the next look broken.

The fee structure has moved repeatedly. Shopify’s Help Center notes that TikTok Shop has charged a fee on all qualified transactions since April 16, 2024, and directs sellers to TikTok Shop Academy for current seller fees, which vary by category and region. Any fee assumption in your model needs a date attached and a calendar reminder to recheck it, because a rate that was accurate last quarter may not be accurate now.

Promotional discounting is layered. Platform-funded discounts, seller-funded discounts and creator promotions stack, and the settlement report separates them differently from how your accounting system wants to see them. Getting the split wrong misstates both gross sales and promotional expense.

What the backlog looks like in practice

The pattern repeats across brands that added the channel in 2024 or 2025. TikTok Shop got connected to the store, orders started flowing, and the accounting treatment was deferred because the volume seemed small. Twelve months later the channel is 15 or 20 percent of revenue and nobody has reconciled a single settlement.

The catch-up work is worse than the ongoing work would have been, for a reason specific to this platform: creator commission attribution degrades over time. Reconstructing which creator drove which sale eight months after the fact, across settlement reports that have since been superseded, is a genuinely painful project. Sellers routinely give up and book the entire commission line as a fee, which permanently destroys their ability to evaluate creator return on investment for that period.

There is a second cost. Cost of goods sold gets allocated to the channel using whatever assumption is convenient, usually the same landed cost applied to Amazon. If the products moving on TikTok Shop skew toward different SKUs, and they usually do, the channel’s reported margin is a fabrication. Brands have shut down profitable TikTok Shop operations and expanded unprofitable ones on the strength of numbers built this way.

The position

Treat TikTok Shop as a full marketplace from the first order, not as an experiment that gets proper accounting once it proves itself. The cost of doing it correctly from day one is a few hours of chart of accounts work. The cost of doing it retroactively is a reconstruction project plus a year of decisions made on fabricated margin data.

Concretely, that means five things. Recognise gross sales at what the customer paid, not the settlement amount. Book creator commission as marketing expense on its own line, not as a platform fee. Use a dedicated clearing account for the channel so settlement timing differences stay visible. Allocate cost of goods sold at the SKU level using the actual landed cost of units that shipped through this channel. Date every fee assumption and recheck it quarterly against TikTok’s own published rates.

Most sellers past a couple of thousand orders a month reach this conclusion and then discover their existing sync tool does not support the channel, which is a live constraint rather than a hypothetical one. Coverage varies: Link My Books supports TikTok Shop in the UK and US, Webgility lists it among its marketplace integrations, and ConnectBooks syncs it alongside Amazon, Shopify, Walmart and eBay into QuickBooks Online, QuickBooks Desktop Enterprise and Xero. Check support before you commit, because retrofitting a channel into a tool that cannot read its settlements is the same reconstruction project by another name.

What happens next

Momentum Works noted that pricing on the platform stabilised in 2025 after widespread declines in 2024, with 15 of 27 categories still seeing price drops. Stabilising prices with rising fee sophistication means margin gets decided at the settlement line rather than at the price point, and brands that cannot read their own settlements will not know which direction they are moving.

The channel is going to keep growing and the accounting is going to keep being an afterthought, because the incentive structure rewards launching fast and punishes nobody for sloppy books until an audit, a financing round or a sale forces the issue. If you are past a million dollars of GMV on TikTok Shop and have not reconciled a settlement, that is the backlog, and it does not improve with age. Standard IRS recordkeeping expectations for small businesses apply to this channel exactly as they do to any other, and a professional should look at the treatment before it becomes a restatement.