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Audit and advisory for E-commerce

Marketplace and own-channel sales, returns and promotions, payment reconciliations, warehouse stock and data security.

Financial reporting and audit in E-commerce companies

E-commerce companies process large numbers of small transactions through their own websites, marketplaces and social commerce channels. Matching sales with channel, payment provider and courier data, recording returns and promotions in the right period and reconciling marketplace payouts directly determine the reliability of the financial statements.

Fast-growing e-commerce companies also face funding rounds, warehouse and logistics investments, and obligations arising from Law No. 6563 on the Regulation of Electronic Commerce. ARSEN applies an audit approach in which the entire transaction data set is examined with data analytics, and supports e-commerce companies with valuation and financial due diligence as they grow.

Audit focus areas in E-commerce companies

01

Principal versus agent and revenue

A company selling its own stock records revenue gross, while a company selling another party's products as an agent on a marketplace records only its commission as revenue. Under TFRS 15 the distinction depends on who controls the goods, and it changes revenue significantly.

02

Returns, coupons and promotions

Returns under the right of withdrawal, discount coupons, basket promotions and loyalty points may require part of revenue to be deferred or a refund liability to be recognised.

03

Payment and marketplace reconciliations

Virtual POS, payment institution, cash-on-delivery and marketplace payout records must be matched with order data. Deductions, commissions and late payouts are common differences at period end.

04

Warehouse stock and returned goods

Counting stock held in the company's own warehouse or at a third-party logistics provider, the resaleability of returned goods and the valuation of slow-moving products are key audit matters.

05

Tax and regulation

E-invoice and e-archive rules, VAT, withholding tax rules specific to e-commerce, and ETBİS registration and obligations for large marketplaces under Law No. 6563 must be monitored closely.

06

Personal data and information security

Processing customer, address and payment data makes KVKK compliance, access management and incident response critical; data breaches mean both administrative fines and reputational damage.

Key standards and concepts in this industry

Our services for E-commerce

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Frequently asked questions about E-commerce

Is marketplace revenue recognised gross or net?
If you control the product before it is transferred to the customer (inventory risk, pricing discretion and primary responsibility to the customer), you are the principal and the gross sale amount is revenue. If you are arranging the sale of another seller's product, only the commission you receive is recognised as revenue.
How are marketplace payouts reconciled with the accounting records?
Order, shipping, return and marketplace payout reports are matched by order number, and commission, shipping and service fee deductions are separated out. Doing this reconciliation monthly significantly reduces period-end differences and the time the audit takes.
Are e-commerce companies subject to independent audit?
The general thresholds also apply to e-commerce companies: companies exceeding at least two of the total assets, net sales and headcount criteria in two consecutive periods are subject to audit. You can check right away with our audit requirement test.
How can companies in E-commerce get a proposal?
Share your company and needs via the proposal form and our team, which knows your industry, will send our scope, timeline and fee proposal in writing. Phone: +90 212 951 02 47.

Last updated: October 23, 2026

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