Enterprise Finance & Tax Compliance | Specialized in solving corporate finance & tax risks

✅ Compliance Diagnostics + Customized SolutionsTo identify accounting / invoicing / tax loopholes.

✅ Policy interpretation + legal planningPrecise Matching Offers to Reduce Costs

✅ Regularization of accounts + Consistency of four streamsSave money by filing tax returns on behalf of your clients.

✅ Audit Response + Digital BuildAdaptation of the Golden Tax IV strict regulation

✅ Cross Border Refunds / Industry SpecificFull-scenario compliance services such as

Sellers who do cross-border e-commerce have almost always been confused:

Amazon backstage shows sales of 1 million, but only 300,000 in hand; clearly feel profitable, tax returns, but have to pay tens of thousands of dollars more taxes; what's more, because of the confusion of cost accounting, tax audits, not only to make up for the wrong tax, but also to bear the late fees and penalties - in fact, the root cause of the problem there is only one:I didn't get the profits right. I didn't get the costs right.The

Many cross-border sellers calculate the profit by simply counting “sales - purchase price”, but ignoring the hidden costs such as headway freight, platform commission, advertising expenses, tax compliance, etc., and finally either overestimate the profit and pay more tax, or omit to calculate the cost of the accounts resulting in confusion, triggering audits.

Today's pure dry goods, thoroughly speak through the cross-border e-commerce profits of the correct algorithm, the whole chain cost composition, dismantle the most easy to miscalculate the five cost pits, teach you to “accurately account for the cost of tax compliance, reasonable tax savings”, the end of the article with exclusive profit accounting + cost sorting benefits, to help you avoid the wrong tax, to keep the real profits!

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

Corrected first: the profit formula that all 90% sellers miscalculated (must remember!)

Cross-border e-commerce profits, never “sales - the price of goods” so simple, but to deduct the full chain costs, the core formula to remember, to avoid stepping on the pit:

Core profit formula (generic version)::

Net Profit = Sales - Variable Costs - Fixed Costs - Taxes

supplementary note: This is the most common and compliant profit accounting formula for cross-border e-commerce, adapted to all platforms such as Amazon, Shopee, independent stations, etc., whether individual sellers or corporate sellers, can be directly applied, in which the accounting for variable and fixed costs is the core of the accurate calculation of the profit, but also the most prone to error.

Let's start by clarifying two key concepts to avoid confusion:

✅ Variable Costs: costs that vary with sales volume (1 cost for 1 sale, none if you don't sell), such as pickup costs, first-trip shipping costs, platform commissions, and so on;

✅ Fixed Costs: Costs that do not change with sales and are incurred on a fixed basis (even if 1 piece is not sold, it needs to be paid), such as monthly store rent, office rent, ERP software fees, etc.

⚠️ Key point: Tax audits are getting stricter and stricter in 2026. Whether the profit accounting is accurate and the cost documents are complete will directly affect the compliance of tax filing. If the cost accounting is wrong, it will either lead to inflated profit and overpayment of EIT/IIT; or it will lead to inflated profit and be recognized as “hidden income”, which will trigger the risk of audit.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

Deconstructing full-link costs: these 8 types of costs, one without the other (with accounting tips)

The cost of cross-border e-commerce through the “procurement - logistics - operation - compliance” full link, many sellers miss the calculation of the hidden costs, the following 8 types of costs, one by one dismantling, to teach you accurate accounting, to avoid omission, miscalculation:

I. Product and supply chain costs (base costs, most likely to miscalculate details)

This is the most basic cost, but many sellers only count the “purchase price”, ignoring the additional costs, resulting in low costing.

✅ Scope of Accounting: Purchasing cost (ex-factory price, raw material cost, processing cost) + Packaging consumables cost (inner packaging, outer box, labeling, need to comply with the environmental protection norms of the destination country) + Sample sampling cost + QC loss cost + Spare parts capital occupation cost (optional, accounted for by the interest of funds).

✅ Accounting Tips: According to the “single product” accounting, such as the purchase of 1,000 products, the total purchase price of 50,000 yuan, packaging supplies 2,000 yuan, sampling costs 500 yuan, quality control losses of 1,000 yuan, then the supply chain cost of a single product = (50,000 + 2,000 + 500 + 1,000) ÷ 1,000 = 53.5 dollars per piece.

❌ Common pit: only calculate the purchase price, ignoring the cost of packaging, sampling, wear and tear, resulting in a single product with an inflated low cost, inflated profits, and overpayment of taxes.

II. Logistics and warehousing costs (hidden costs hit hard)

Logistics cost is the “big head” of cross-border e-commerce, covering the headway, tailing, warehousing, many sellers only calculate the headway freight, omission of tailing and warehousing costs, and the final profit accounting serious deviation.

✅ Scope of accounting: First leg logistics fee (sea/air/express fee, domestic pickup + customs clearance fee) + Tail delivery fee (FBA delivery fee, self-shipment postal parcel/special line fee) + Warehousing fee (FBA/overseas warehouse rent, inbound/outbound operation fee, demurrage fee) + Reverse logistics fee (return/exchange shipping fee, which is usually 2-3 times of the forward logistics fee).

✅ Accounting skills: headway freight according to “per kilogram / per cubic meter” apportioned to a single product, warehousing costs according to “per month / per unit of volume” accounting, such as 1,000 products headway freight 10,000 yuan, warehousing costs of 2,000 yuan per month, the monthly sales volume of 200 pieces, then a single product logistics and storage costs = (10,000 ÷ 1000) + (2000 ÷ 200) = 10 + 10 = 20 yuan / piece. Then the single product logistics and warehousing costs = (10,000 ÷ 1000) + (2000 ÷ 200) = 10 + 10 = 20 yuan / piece.

❌ Common pit: omission of demurrage, reverse logistics fees, especially FBA long-term demurrage products, demurrage will continue to accumulate, and finally eat up all the profits; ignoring customs clearance fees, documentation fees and other small fees, long-term accumulation of the cost deviation is very large.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

III. Platform and channel costs (fixed + variable combination, easy to miss)

Different platforms have different costs, the core is a combination of “fixed costs + variable costs”, many sellers only count the commission, omitting to count the platform monthly rent, payment processing fees.

✅ Scope of accounting: platform fixed costs (monthly/annual store rent, e.g. $39.99/month for Amazon Professional Sellers) + variable costs (platform commissions, 5%-20% for most platforms and 8%-15% for Amazon, differentiated by category) + payment handling fees (PayPal/Lianlian/PingPong collection handling fees, 0.51 TP3T-3%) + additional costs for independent sites (site building fees, servers, plugin subscription fees).

✅ Accounting skills: platform commissions, payment processing fees according to the “proportion of sales” accounting, fixed costs are apportioned to a single product on a monthly basis, such as store rent of 300 yuan / month, monthly sales of 50,000 yuan, the platform commission of 8%, payment processing fees 1%, then the cost of a single product platform channel = sales × 9% + (300 ÷ monthly sales). 9% + (300 ÷ monthly sales).

IV. Marketing and promotion costs (easy to mess up the math, needs refinement)

Marketing and promotion costs are variable costs that change with operational inputs, and many sellers only count on-site advertising and omit off-site promotion, evaluation and other costs, resulting in imprecise costing.

✅ Accounting scope: onsite ads (Amazon SP/SD ads, Shopee CPC) + offsite promotions (TikTok/FB casting streams, KOL partnerships) + measurement fees, coupon costs + image/video shooting fees, keyword tool subscription fees.

✅ Accounting skills: according to the “single product” to share the cost of promotion, such as a product monthly promotion of the total cost of 8,000 yuan, the monthly sales of 400 pieces, then the single product promotion cost = 8000 ÷ 400 = 20 yuan / piece; it is recommended to control the cost of promotion of the sales of 10%-15%, to avoid the promotion of the cost of swallowing profits. Costs devouring profits.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

V. Tax and Compliance Costs (red lines of compliance, not to be missed)

Tax cost is a must-calculate item for compliance, omission will lead to errors in tax filing, pay more wrong tax or trigger audit, many sellers ignore this part of the cost, and the final loss is not worth it.

✅ Scope of Accounting: Import Taxes and Fees (Customs Duty, according to HS Code 0%-20%; Import VAT/GST, such as the EU 20% or so) + Destination Country Tax Costs (VAT registration/declaration fees, on behalf of the report of about 2,000-5,000 yuan/year/country) + Compliance Certification Fees (CE/FCC/FDA, etc., a single item of several thousand dollars to tens of thousands of yuan) + Trademarks/Patents Trademark/Patent Registration Maintenance Fee.

✅ Accounting skills: import taxes and fees according to the “product CIF price” tax, tax declaration fees, certification fees by month/year apportionment, such as a product import tariff 5%, import VAT20%, CIF price of 100 yuan / piece, then a single product import tax = 100 × (5% +) = 25 yuan / piece. 20%) = $25/piece.

❌ Common Pit: Neglecting VAT declaration fee and compliance certification fee, resulting in low costing; buying single export without formal customs declaration record, unable to apply for tax exemption, being treated as domestic sales to pay back the VAT, and paying more unjust tax.

VI. Labor and operating costs (fixed costs, easy to ignore)

Individual sellers may ignore this part, and business sellers are prone to omitting outsourcing costs, leading to incomplete fixed cost accounting.

✅ Scope of accounting: labor costs (operation, artwork, customer service, finance salaries) + office costs (site rent, utilities, office supplies) + third-party outsourcing costs (representative operation, tax agent, translation fees).

✅ Accounting tips: apportionment on a monthly basis, for example, the total monthly labor + office costs of 15,000 yuan, the total monthly sales of 5,000 pieces, then a single product apportionment of labor operating costs = 15,000 ÷ 5,000 = 3 yuan / piece.

VII. After-sales and risk management costs (hidden costs, easy to miss)

This part of the cost seems small, long-term accumulation will seriously affect the profit, many sellers directly ignore, resulting in profit accounting bias.

✅ Scope of Accounting: Returns and exchanges loss (refund amount, merchandise loss) + Exchange rate loss (exchange difference arising from multi-currency settlement) + Insurance (shipping insurance, product liability insurance) + Platform fines (e.g., FBA packaging violation fines).

✅ Accounting skills: according to the “average monthly loss” apportioned to a single product, such as monthly return loss of 2,000 yuan, the exchange rate loss of 1,000 yuan, the monthly sales of 400 pieces, then a single product after-sales risk cost = (2000 +1,000) ÷ 400 = 7.5 yuan / piece.

VIII. Other miscellaneous costs (small cumulative, not negligible)

These types of costs are small in individual amounts, but they are varied and accumulate over time, which can also affect the accuracy of profit accounting.

✅ Scope of accounting: ERP/inventory management software subscription fees, industry training fees, trade show participation fees, unexpected costs (customs inspection fees), etc.

✅ Accounting Tip: To apportion on a monthly basis, summarize all miscellaneous costs and divide by the total monthly sales volume to get the miscellaneous costs apportioned to a single product.

Hands-on Demo: Precise Profit Calculation for Amazon Boutique Sellers as an Example

Many sellers read the theory or will not count, directly on the practical cases, substitute data, hand in hand to teach you to calculate the profit, can be directly applied:

Suppose: Amazon boutique seller, single product selling for 200 yuan (RMB), monthly sales of 500 pieces, each cost is as follows:

1. Supply chain cost: $53.5/piece (procurement + packaging + proofing + loss);

2. Logistics and warehousing cost: 20$/piece (headway + FBA delivery + warehousing);

3. Platform channel cost: 200 × (8% commission + 1% payment processing fee) + (300 monthly rent ÷ 500 pieces) = 18 + 0.6 = 18.6 yuan / piece;

4. Promotion cost: $20/piece;

5. Tax compliance cost: $25/piece (import duty + VAT);

6. Human operating costs: $3/piece;

7. Cost of after-sale risk: $7.5/piece;

8. Miscellaneous costs: $0.9/item;

✅ Total cost of a single product = 53.5 + 20 + 18.6 + 20 + 25 + 3 + 7.5 + 0.9 = $148.5 per piece;

✅ Gross profit on a single product = Selling price - Total cost = 200 - 148.5 = $51.5 per piece;

✅ Monthly Gross Profit = 51.5 x 500 = $25,750;

✅ Monthly Net Profit = Monthly Gross Profit - Taxes (EITC 25%, assuming no foreign credits) = 25,750 - (25,750 x 25%) = $19,312.5.

⚠️ Note: If you omit any one of these costs (such as omitting the cost of after-sales risk 7.5 yuan / piece), the profit of a single product will be inflated by 7.5 yuan, the monthly profit is inflated by 3,750 yuan, the tax return will be more than 937.5 yuan of corporate income tax, in the long term, the more the wrongful tax is paid more and more.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

Pit avoidance focus: 5 cost accounting errors, resulting in more unjust tax (must avoid!)

Combined with the latest tax audit cases in 2026, the following 5 costing mistakes are the most common ones made by cross-border sellers, and are also the main reasons that lead to overpayment of unjust taxes and triggering audits, so be sure to avoid them:

❌ Myth 1: Counting only explicit costs and omitting implicit costs (most common)

Many sellers only count the purchase price, first-trip freight, and omit storage fees, demurrage, exchange rate loss, and compliance certification fees, resulting in low costing, inflated profits, and overpayment of EIT/PIT; what's more, omitting VAT filing fees results in non-compliance with tax filing and triggers audits.

❌ Myth 2: Unreasonable cost sharing and artificial regulation of profits

For example, the promotion cost of product A is apportioned to product B, which artificially lowers the profit of product A and raises the cost of product B, in an attempt to pay less tax; or fixed costs (such as monthly rent for stores) are not apportioned, resulting in inflated profits for a single product and more tax. This kind of operation belongs to “account falsification”, 2026 tax audit can be accurately identified through the platform data, capital flow.

❌ Myth 3: Offshore expenses are unsupported and cannot be deducted on a pre-tax basis

FBA warehousing fees, platform commissions, overseas advertising fees, etc., which are recorded only on the basis of payment water bill, without obtaining formal documents (such as pro forma invoice + service contract), are recognized by the tax authorities as non-compliant vouchers, and can not be deducted before tax, which leads to inflated profits and overpayment of tax. According to the Measures for Invoice Management, if the tax authorities have doubts about the foreign vouchers, they can provide confirmation certificates from overseas notary public organizations, which can be used as bookkeeping vouchers after examination.

❌ Myth 4: Unstandardized exchange rate translation leads to cost/revenue bias

In the case of multi-currency settlement, the translation was not based on the “middle rate of the RMB exchange rate on the day the income was generated or on the first day of the month”, but on the exchange rate at the end of the quarter, which led to inaccurate accounting of costs and revenues, which either resulted in overpayment of taxes, or was recognized as “chaotic accounts” and triggered an audit. The result is inaccurate accounting of costs and revenues, which will either result in overpayment of taxes or be recognized as "confusion in accounts", triggering audit. It is recommended that the accounting be based on the exchange rate on the first day of the month, consistent with the export declaration rate, and the exchange difference be adjusted uniformly at the end of the year.

❌ Myth 5: Buying and exporting, the cost is not deductible

Due to the lack of purchase invoices, the use of “buy single customs declaration” exports, not with the company head of customs declaration, resulting in the purchase cost can not be deducted, can not apply for export tax rebates, be treated as domestic sales VAT, pay more tax; at the same time, no formal customs records, cost vouchers are incomplete, easy to be recognized by the tax authorities for “ Hidden Income”.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)

2026 Compliance Alert: Cost Accounting, and Doing These 2 Other Things Right

1. Vouchers should be complete: all cost-related vouchers (purchase invoices, logistics documents, platform statements, pro forma invoices, contracts, payment of water bills), all retained for at least 5 years, the tax audit, you can quickly provide supporting evidence, to avoid “incomplete vouchers” can not be deducted before the tax, and to pay more unjust tax;

2. Regularly check the data: monthly check “platform sales, bank water, cost vouchers”, to ensure that the three are consistent, the formation of “data - funds - vouchers” closed-loop, to avoid confusion in the accounts; quarterly review of the cost structure, to optimize high-cost links (such as optimization) The cost structure is reviewed quarterly to optimize high-cost aspects (such as optimizing logistics solutions and controlling promotion costs), which not only complies with the regulations, but also improves profits.

Finally: accurate cost accounting is the core of cross-border money making

For cross-border sellers, “calculate the profit, check the cost”, not only to avoid paying more taxes, but also to accurately determine whether a single product is profitable, optimize the operating strategy, to achieve long-term profitability. The reason why many sellers “earned sales, did not earn money”, and even pay more taxes, the essence is that the cost accounting is not accurate, not comprehensive.

If you don't know how to accurately account for profits, don't know how to sort out the whole chain costs, or want to check the potential risks in costing and reasonable tax savings, you may want to contact us directly-

We focus on cross-border e-commerce financial compliance for 11 years +, familiar with cross-border e-commerce whole chain cost composition, the latest tax policy in 2026, can help you one-on-one sort out the cost, accurate accounting profit, optimize the cost structure, to provide compliance tax filing program, to help you avoid the wrong tax, keep the real profit, while avoiding the risk of tax audit.

Need exclusive tax compliance program Immediately contact: 19076121147 (phone / WeChat the same number)