Auction Fee Calculator
Auction profit calculator using its official category rates, prepaid shipping fees, Naver referrals, eligible promotions and monthly server fees.
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How to use
- Choose a marketplace category and enter price, options and seller discounts.
- Set shipping and actual delivery cost, Naver referrals and promotion eligibility.
- Check order profit, then enter prior-month sales and expected orders to include the monthly server fee.
Inputs are calculated in this browser and are not sent to a server.
Auction Fee Calculator
Content updated · This is not the effective date of a fee policy. Check your settlement for the applicable rate.
Official category rates are stored separately for each marketplace. Options add to the price, seller-funded discounts reduce revenue, and the requested 2% Naver referral fee is retained. Selling and Naver fees use the pre-discount amount including options.
Only prepaid shipping incurs the 3.3% fee. Promotion fees apply only when you select eligible Big Smile Day orders meeting the reference-price conditions. The fee is 3% after seller discounts, rounded to whole KRW. The abolished 20% coupon charge is removed.
A seller ID with previous-month product sales of at least KRW 5 million incurs KRW 55,000 monthly, separately per marketplace. This is shown separately from order profit and deducted once from the monthly estimate. Blank prior-month sales are not treated as zero.
When to use it
The promotion example uses a KRW 50,000 price, KRW 5,000 seller discount, KRW 30,000 cost, KRW 2,500 prepaid and actual shipping, a 13% selling fee and Naver referral. Order profit is KRW 6,068. At 100 orders and KRW 5 million previous-month sales, estimated monthly profit after the server fee is KRW 551,800.
Not getting the result you expected?
Special fixed charges, ads and returns are separate; edit the rate for contract differences. Monthly profit assumes repeated identical orders and can differ from actual multi-product settlements.
Frequently asked questions
Does the 3% promotion fee apply to every order?
No. Apply it only to eligible Big Smile Day orders meeting the reference-price conditions. Canceled or refunded orders are excluded.
Is the monthly server fee deducted per order?
No. It is excluded from order profit and deducted once, KRW 55,000, from the applicable marketplace seller ID monthly estimate.
Does Auction charge a shipping fee for free delivery?
The prepaid-shipping fee applies only to shipping paid by the buyer in advance. It does not apply to free delivery or cash on delivery, but enter any delivery cost you actually pay when estimating profit.
Should I enter every Auction coupon as a seller cost?
Enter only discounts funded by the seller as seller discounts. Do not deduct platform-funded discounts again. Basic selling fees, affiliate fees and conditional promotion fees are shown separately.