ETDA’s TTR Guidance: A New Framework for E-Marketplace Fee Transparency

ETDA’s TTR Guidance: A New Framework for E-Marketplace Fee Transparency

The Electronic Transactions Development Agency (ETDA) has issued new guidance introducing the concept of the Total Take Rate (TTR) for e-marketplaces. The guidance is intended to give merchants a clearer and more comparable picture of the total fees and expenses associated with selling through an e-marketplace, particularly before they decide whether to participate in a campaign, promotional program, or additional service.

The initiative responds to an increasingly complex fee structure in the e-commerce ecosystem. A merchant’s cost of selling through an e-marketplace may extend well beyond the headline commission rate and include payment processing fees, infrastructure or system fees, campaign participation costs, merchant-funded discounts, advertising fees, affiliate fees, and charges for additional services. Because these charges may use different names, rates, and calculation bases, merchants may find it difficult to determine the actual economic cost of a transaction. The TTR framework is designed to address this information gap by presenting the aggregate financial impact in a standardized and understandable form. (ETDA⁠)

What is the Total Take Rate?

Under the guidance, TTR generally represents the total fees and expenses borne by a merchant in connection with the sale of a product, expressed as a percentage of the net product price. The net product price is essentially the initial selling price after deducting discounts for which the merchant is responsible. TTR should be presented both as a percentage and as an actual monetary amount so that merchants can see how platform charges affect the proceeds they expect to receive. (ETDA⁠)

The guidance divides TTR into three components:

Baseline TTR represents the aggregate fees ordinarily necessary for an order to take place and be completed. These may include commissions, payment processing fees, and infrastructure fees, without including costs attributable to campaigns or additional services.

Scenario TTR takes the Baseline TTR and adds the costs associated with a particular campaign or additional service that the merchant is considering. Depending on the arrangement, these may include additional discounts, campaign participation charges, advertising fees, affiliate fees, or fees for special programs.

Incremental TTR represents the difference between the Scenario TTR and Baseline TTR. It therefore gives the merchant a relatively straightforward indication of the additional economic burden associated with participating in the proposed campaign or additional service. (ETDA⁠)

This distinction is important because a platform’s headline commission rate may provide only a partial picture of the actual cost of a sale. By comparing the Baseline and Scenario TTR, a merchant can assess the financial position both with and without participation in a particular campaign.

Disclosure before the merchant commits:

A central feature of the guidance is the timing of disclosure. Relevant TTR information should be made available at the point at which the merchant is making the commercial decision, particularly before confirming participation in a campaign or additional service.

The platform should provide information that allows the merchant to understand the Baseline TTR, the Scenario TTR, the resulting Incremental TTR, and the estimated net proceeds. The objective is to enable the merchant to assess the economic consequences before committing, rather than discovering the full cost only after the transaction has taken place.

The guidance therefore encourages platforms to place TTR information at relevant decision points, such as product pricing pages, fee information pages, seller dashboards, and, importantly, the screen presented before a merchant confirms participation in a campaign or additional service. Information should be presented clearly and accessibly rather than being obscured in detailed terms and conditions or links that are difficult to locate. (ETDA⁠)

TTR calculation tools:

The guidance also encourages e-marketplaces to provide merchants with a TTR calculation tool that is easy to use and available without an additional charge.

Such a tool could allow a merchant to select a particular product or SKU and enter relevant variables, including the selling price, merchant-funded discounts, campaign participation, and applicable fees. The resulting calculation should enable the merchant to compare the cost of selling under the ordinary arrangement with the cost that would apply if the merchant participates in the proposed campaign or additional service.

The output should show relevant fees in both monetary and percentage terms and provide an estimate of the merchant’s net proceeds. Where sufficient information is available, the tool may also show gross profit and the break-even selling price. The guidance additionally contemplates merchants being able to save or download calculation results for subsequent verification. (ETDA⁠)

This aspect of the guidance may have practical implications beyond simply adding another disclosure to a platform’s terms of service. E-marketplace operators may need to consider whether their merchant interfaces, campaign enrollment processes, fee databases, and internal calculation systems are capable of generating sufficiently accurate TTR information at the point when a merchant makes its decision.

Changes to fees affecting TTR:

The guidance also addresses subsequent changes to the fee structure. Where a platform changes a fee rate, calculation base, collection method, or other condition affecting TTR, it should generally notify merchants at least 30 days in advance.

The information should allow merchants to compare the position before and after the change and understand how the change affects the Baseline TTR and Scenario TTR. This gives merchants an opportunity to assess the commercial consequences and adjust their pricing or participation strategy before the new fee structure applies. (ETDA⁠)

This approach reflects a broader transparency objective: merchants should not merely know that a particular fee has changed, but should also be able to understand how that change affects the overall cost of using the platform.

Transparency after the transaction:

The TTR framework does not end once the merchant has agreed to participate in a campaign. The guidance also encourages transparency after a transaction has been completed.

Merchants should be able to review the fees actually deducted and compare them against the TTR previously estimated. Where the amounts differ, the platform should provide sufficient information to explain the discrepancy. Possible reasons could include the actual use of coupons, product returns, refunds, or changes in the merchant’s status.

ETDA also recommends that calculation histories and actual fee information remain accessible through the platform for at least three months and that merchants be able to save or download relevant information. Annual summaries are also contemplated to assist merchants in evaluating the overall cost of selling through the platform. (ETDA⁠)

A transparency framework, not a fee cap:

An important point is what the TTR guidance does not do. It does not prescribe a maximum commission or impose a ceiling on the amount that an e-marketplace may charge. ETDA describes its purpose as improving the completeness, transparency, comparability, and verifiability of fee information so that merchants can make informed commercial decisions. (ETDA⁠)

The legal status of the instrument should therefore be understood accordingly. ETDA places the TTR guidance within its category of “Best-practice/Self-Regulation” measures rather than mandatory platform rules. (ETDA⁠) The guidance should therefore not be characterized as immediately imposing a statutory obligation on every e-marketplace to implement the TTR model exactly as described.

Nevertheless, the distinction between guidance and mandatory regulation should not obscure its practical importance. The TTR framework provides a detailed regulatory benchmark for how ETDA considers platform fee transparency should operate. E-marketplace operators should therefore consider the guidance when reviewing their fee structures, merchant-facing disclosures, campaign enrollment processes, and supporting IT systems.

Why TTR matters for merchants:

For merchants, the principal benefit of the TTR model is that it changes the focus from individual fee rates to the aggregate economic effect of selling through the platform.

Consider a product with an initial price of THB 1,000 where the merchant bears a THB 100 discount, producing a net product price of THB 900. ETDA illustrates how a Baseline TTR of 12.96% would correspond to approximately THB 116.63 in baseline charges and estimated net proceeds of THB 783.37. If participation in a campaign creates another THB 108 of costs, the Scenario TTR would rise to 24.96%, with the Incremental TTR showing an additional 12 percentage points and estimated net proceeds falling to THB 675.37. (ETDA⁠)

The example illustrates the commercial rationale behind the framework. A merchant considering a campaign should be able to assess not simply whether the campaign may increase sales, but also how much additional revenue or volume would be required to offset the additional platform costs.

Practical implications for e-marketplace operators:

For platform operators, implementation of the TTR framework is potentially a product, compliance, and systems issue rather than merely a matter of revising contractual terms.

Platforms may need to map the different charges imposed on merchants, identify the relevant calculation bases, distinguish baseline costs from campaign-specific or additional costs, and ensure that their systems can calculate and present the resulting TTR accurately. Merchant dashboards and campaign enrollment interfaces may also need to be designed so that relevant information is available before the merchant confirms participation.

Operators should also consider whether their post-transaction records allow merchants to reconcile estimated and actual charges and whether changes to fees can be communicated in a manner that explains their overall TTR impact rather than merely announcing a revised percentage for an individual fee.

For merchants, meanwhile, TTR could become a useful metric for comparing the economic effect of different campaigns and services. In particular, the Incremental TTR provides a relatively direct way of assessing the additional cost of a campaign against its expected contribution to sales.

Key takeaways:

• ETDA has introduced TTR as a framework for improving transparency over the aggregate fees and expenses borne by merchants selling through e-marketplaces.
• TTR is divided into Baseline TTR, Scenario TTR, and Incremental TTR, allowing merchants to distinguish ordinary transaction costs from the additional costs associated with campaigns or additional services.
• The guidance emphasizes disclosure before a merchant commits to a campaign or additional service, rather than relying solely on general fee schedules or contractual terms.
• E-marketplaces are encouraged to provide accessible TTR calculation tools showing fees, estimated net proceeds, and other relevant financial information in both monetary and percentage terms.
• Changes affecting TTR should generally be notified to merchants at least 30 days in advance, together with information enabling them to understand the impact of the change.
• Merchants should be able to compare estimated TTR with fees actually deducted after transactions and access historical fee information.
• The TTR framework does not impose a cap on platform fees. It is currently presented by ETDA as a best-practice/self-regulatory measure aimed at transparency and informed decision-making rather than direct price regulation.
• Although not framed as an immediately mandatory fee-control regime, the guidance provides e-marketplace operators with a detailed regulatory benchmark against which their fee disclosure practices and merchant-facing systems can be reviewed.

Author: Panisa Suwanmatajarn, Managing Partner.

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