HKIAC fees went up on January 1, 2026.

Not by a terrifying amount. Enough, though, to make people pause over a budget spreadsheet. The registration fee increased from HKD 8,000 to HKD 10,000. The arbitrator hourly rate cap went from HKD 6,500 to HKD 7,500. The expedited procedure threshold doubled from HKD 25 million to HKD 50 million. Administrative fees also changed: the maximum administrative fee rose from HKD 400,000 to HKD 440,000, while the minimum fee dropped from HKD 19,800 to HKD 15,000. Baker McKenzie’s note on Global Arbitration News has a useful summary of the adjustment.

Put those numbers together and it is easy to read them wrong. Some people see “fee increase” and decide HKIAC is getting expensive. Others see the higher expedited threshold and assume mid-value cases will now be cheaper.

Both readings are incomplete.

The hard part with HKIAC fees is not the registration fee, and not even the administrative fee. The hard part is knowing which “cost” you are actually looking at.

I have seen more than one client send me a screenshot from the HKIAC fee calculator and ask, “So this is the total cost of the case?” The screenshot usually looks neat. White background. Blue button. Fifteen browser tabs open in the corner.

No.

That number is only an estimate of part of the institutional and tribunal cost. It does not usually include lawyers, experts, translation, hearing rooms, transcripts, travel, security for interim measures, or enforcement. For a real cross-border arbitration, the calculator gives you the floor. Not the ceiling.

Break the Fees Apart First

An HKIAC-administered arbitration has several layers of cost.

The first layer is the registration fee. This is paid by the claimant when filing the Notice of Arbitration. From January 1, 2026, the amount is HKD 10,000. The number itself is not large, but it matters procedurally: if it is not paid, the arbitration does not move forward. It is the key to open the door, not the rent.

The second layer is the HKIAC administrative fee. This is calculated by reference to the amount in dispute, using the fee schedule published on HKIAC’s website on the date the Notice of Arbitration is submitted. Under the 2026 adjustment, the bottom fee is HKD 15,000 and the top fee is HKD 440,000. The fee increases in bands. This is the institution’s fee for administering the case. It is not the fee for the arbitrators to read the file and write the award.

The third layer is the tribunal’s fees. This is where people make mistakes. The 2024 HKIAC Rules keep two models: hourly rates under Schedule 2, and fees based on the amount in dispute under Schedule 3. If the parties do not agree on a method, hourly rates are the default.

The fourth layer is the parties’ own cost: lawyers, experts, document translation, witness preparation, hearing venue, transcripts, e-discovery platforms, travel. Anyone who has actually run an arbitration knows this layer can hurt more than the first three. Especially in English-language proceedings. A Chinese supply contract, technical appendix, email chain, and inspection report turn into a thick translation bundle very quickly. The edge of the paper curls a little after printing, and the binding machine keeps making that sharp click-click-click noise.

I know that sound too well. It gets annoying.

Registration Fee Does Not Decide Whether HKIAC Is Expensive

The HKD 10,000 registration fee is not the number that decides whether HKIAC is expensive for most commercial cases. At early-2026 exchange rates, it is roughly USD 1,280. Compared with ICC’s USD 5,000 filing fee, HKIAC’s registration fee is still not high.

But there are two small points that buyers miss.

First, the claimant usually pays it upfront, and it is generally non-refundable. You need that amount ready when filing. Second, where there are multiple claimants, the internal split may need to be worked out between them. A small rule problem can become a practical problem in multi-party or multi-contract cases: who advances the money, who reimburses whom, how it is booked internally.

This is why I do not like asking only “how much is in dispute” when estimating case cost. I also ask whether there is a counterclaim, multiple contracts, multiple claimants or respondents, and whether consolidation might come up. HKIAC’s 2025 statistics show that nearly half of new arbitrations involved multiple parties or contracts. That matches what I see in cross-border transactions. One supply deal is often not one document. Purchase agreement, quality addendum, mold agreement, NNN agreement, purchase orders, email confirmations. Once a dispute starts, costs grow branches.

Administrative Fees Follow the Amount in Dispute, But Not in a Straight Line

Administrative fees are tied to the amount in dispute. Simple enough. But it does not mean that if the dispute amount doubles, the fee doubles.

HKIAC uses bands. Small cases have a minimum fee. High-value cases have a cap. From 2026, disputes over HKD 400 million carry a maximum administrative fee of HKD 440,000. In a case worth more than HKD 400 million, that may not be a dramatic number. In a case worth a few hundred thousand Hong Kong dollars, the HKD 15,000 minimum fee is very noticeable.

So for smaller cases, the question is not simply “is HKIAC expensive?” The better question is proportion. In a HKD 300,000 dispute, the HKD 10,000 registration fee plus the HKD 15,000 minimum administrative fee already totals HKD 25,000, before any tribunal fee. That is a serious percentage. In a HKD 30 million dispute, the same registration fee barely registers.

This is the cold part of arbitration costs: fixed costs punish small cases.

I once looked at a modest purchase dispute, around USD 70,000 or 80,000, where the contract required HKIAC arbitration, three arbitrators, and English procedure. The buyer thought that made the contract “more international.” Then we ran the deposit estimate. His face changed. We were in a meeting room in Shenzhen; outside the window the summer light was that white, overexposed kind that hurts your eyes. He tapped his pen on the table several times and finally said, “This clause was just in our template.”

Templates can be expensive.

Tribunal Fees: Hourly Rate and Ad Valorem Are Different Animals

HKIAC is different from some institutions because it lets parties choose how the tribunal is paid.

The default is hourly rates. From 2026, the arbitrator hourly rate cap is HKD 7,500. A higher rate is possible, but only with express party agreement or an HKIAC decision in special circumstances. The tribunal secretary rate cap remains HKD 2,500 per hour.

Hourly rates track actual work better. If the case is simple, the file is small, and the issues are narrow, the tribunal should spend less time and the cost should not rise mechanically just because the amount in dispute is high. The downside is budget uncertainty. You can estimate. You cannot know exactly at the start.

The other model is ad valorem, based on the amount in dispute. Schedule 3 gives more predictability, especially where parties want a rough cost framework when signing the contract. The downside is that it may not reflect actual workload. A high-value but narrow dispute may feel expensive under ad valorem. A lower-value dispute with messy facts, huge evidence volume, jurisdiction objections, and multiple parties may still be costly under hourly rates.

There is no perfect answer. My usual view is plain: if the amount is high, the facts are relatively clean, and both sides want budget control, ad valorem deserves a serious look. If complexity is hard to predict, especially where there may be counterclaims, multiple contracts, multiple parties, or technical evidence, hourly rates may track the real work better.

But this should ideally be addressed in the arbitration clause, or at least early in the procedure. Once the arbitration has started and everyone is already defensive, discussing how the arbitrators should be paid rarely feels pleasant.

Deposits Are the Real Cash Flow Problem

Parties new to arbitration often focus on who will bear costs at the end. That matters. Article 34 of the 2024 HKIAC Rules allows the tribunal to decide costs in an award or order, and to consider the parties’ relative success, the scale and complexity of the dispute, their conduct in the proceedings, third-party funding, outcome-related fee arrangements, and even adverse environmental impact from party conduct.

But during the case, the first problem is deposits.

Under Article 41, HKIAC will usually ask both claimant and respondent to deposit equal amounts after the respondent receives the Notice of Arbitration. These deposits cover tribunal fees, tribunal expenses, necessary assistance, registration fee, and administrative fee. HKIAC may request further deposits later. If one party does not pay, HKIAC will ask whether the other party wants to pay that share. If the money still does not come in, the arbitration may be suspended, terminated, or continued on terms the tribunal considers appropriate.

The rule reads technical. In practice it means one thing: you need cash flow.

Especially as claimant. You have already paid the registration fee, prepared the Notice, engaged counsel, and started the case. Then the respondent refuses to pay its deposit. Do you cover it? If you do not, the procedure may stall. If you do, your cash pressure goes up. Later you can ask the tribunal to order reimbursement, but later is later.

When I explain this to clients, I usually do not say “you may recover costs eventually.” That sentence is too light. The real question is whether your budget can handle an extra HKD deposit in the next three months.

If not, painful.

The Expedited Threshold Matters More Than the Fee Increase

In the 2026 adjustment, the expedited procedure threshold matters more to me than the registration fee increase.

Raising the threshold from HKD 25 million to HKD 50 million means more mid-sized cases can apply for expedited procedure. Under Article 42 of the 2024 HKIAC Rules, expedited procedure may apply where the amount in dispute is within the threshold published on HKIAC’s website, where the parties agree, or where there is exceptional urgency. If granted, the case is generally heard by a sole arbitrator, deadlines may be shortened, the parties usually file one statement of claim and one statement of defence, and the tribunal may decide the case on documents.

HKIAC’s own costs and duration report looked at 282 cases that reached final award between November 1, 2013 and April 30, 2023. Across the full sample, median duration was 15 months; mean duration was 17.7 months. Of those cases, 64 used expedited procedure. Expedited cases had a median duration of 9.4 months, a median six months from transmission of file to tribunal to award, and median arbitration costs of USD 32,239. Across the full sample, median arbitration cost was USD 75,458.

These numbers are not promises. Every case is different. But the direction is clear: expedited procedure saves less on registration and administrative fees, and more on tribunal time, lawyer time, document exchange, and the internal management time that quietly drains a business.

That matters for supply chain disputes. Quality claims, late delivery, non-delivery, mold ownership, deposit recovery. Many such cases are below HKD 50 million, but the facts can still be ugly. If the clause is well drafted and the evidence is decent, expedited procedure can keep the case on a more manageable track.

HKIAC Is Expensive, But It Has Something Others Do Not

If you compare only institution fees, HKIAC is usually not the cheapest choice. Compared with CIETAC, HKIAC’s institution and tribunal costs will often be higher in small and mid-sized cases.

But HKIAC has something very specific in China-related disputes: access to Mainland court interim measures.

On October 1, 2019, the Arrangement Concerning Mutual Assistance in Court-ordered Interim Measures in Aid of Arbitral Proceedings between Mainland China and Hong Kong took effect. For Hong Kong-seated arbitrations administered by qualifying institutions, parties may apply to Mainland courts for asset preservation, evidence preservation (证据保全), and conduct preservation. HKIAC is one of the institutions people most often think of in this context.

The 2025 numbers are striking. HKIAC processed 34 applications to 13 Mainland courts in 2025, seeking preservation over about RMB 10.9 billion. From the start of the Arrangement in 2019 through the end of 2025, HKIAC processed 178 applications involving RMB 45.3 billion in assets. HKIAC is aware of 133 Mainland court decisions, with 126 granted after the applicants provided security, an approval rate of about 95%, preserving around RMB 30.8 billion. I wrote separately about these statistics here.

That is why I do not mechanically tell supply chain clients to choose the cheaper institution. If your supplier is in Mainland China, has bank accounts, equipment, inventory, or receivables, and you are worried about asset transfers, preservation may be worth more than the fee difference.

A USD 500,000 goods dispute where you save a few thousand dollars on institution fees but receive an award after the supplier’s bank account is empty is not a good bargain.

Money saved. Result gone.

Can You Make the Other Side Pay?

You can ask. Do not treat it as guaranteed income.

Article 34 of the 2024 HKIAC Rules gives the tribunal broad room. It may decide how costs are allocated between the parties, taking into account success, complexity, conduct, third-party funding, outcome-related fee arrangements, and other factors. Legal fees and expert fees can be claimed as reasonable costs, but you must claim them in the arbitration and prove that they are reasonable.

“Reasonable” is a dangerous word.

Invoices are not enough. Bills are not enough. You need to explain why the work was necessary, how much time was spent, whether the rates were reasonable, and whether the cost fits the complexity of the case. In international arbitration, some teams love to overstaff. Seven or eight people on a call. At the costs stage, the other side will attack that. The tribunal will look too.

I have little patience for cost claims that ignore proportion completely. A USD 300,000 case, followed by a USD 200,000 legal fee claim, with a straight face and the words “fully reasonable.” Maybe. But you had better have a very good explanation. Otherwise, even if the tribunal awards costs, it may cut hard.

How I Would Budget It

If all you want to know is whether HKIAC is “expensive,” the answer is not useful. Build a layered budget.

First, calculate what can be calculated from public schedules or fee calculators: registration fee, administrative fee, ad valorem tribunal fee, or a range for hourly tribunal fees. Use the HKIAC fee calculator to see the HKD and USD figures, then use the arbitration cost comparator to compare CIETAC, ICC, SIAC, and HKIAC side by side.

Second, estimate legal fees. Harder than institution fees, but do it anyway. Break it by phase: filing and Notice of Arbitration, Answer and jurisdiction objections, evidence, hearing, post-hearing submissions, costs application.

Third, check whether you need experts and translation. Supply chain quality disputes often need inspection reports and technical explanation. Construction, energy, software, and complex equipment cases are more likely to need experts. In English proceedings, translation of Chinese evidence is not a small line item.

Fourth, look at preservation. A preservation application involves legal work, and Mainland courts usually require security. The cost of security can be more real than the application fee.

Fifth, budget enforcement. An award does not automatically become cash. If the other side does not pay voluntarily, you still need recognition, enforcement, asset search, and court steps. Cross-border enforcement is another budget.

The spreadsheet may not look pretty. But it is useful. It answers the real question: is the case worth fighting, how far is it worth fighting, and when should settlement be put on the table.

How I Would Choose

If the case is a small payment claim, with no complex cross-border element, clear supplier assets, and an arbitration clause already pointing to a Mainland institution, I would not force it into HKIAC just to make it feel “international.” The cost may not make sense, and the procedure may not be smoother.

If the contract value is higher, both sides can handle English procedure, enforcement may be needed in several jurisdictions, or the supplier has Mainland assets and you need the Hong Kong preservation channel, HKIAC deserves a serious look. Paying more is not necessarily wrong. Not knowing why you are paying more is the problem.

HKIAC fees are not an isolated number. They are tied to the seat, enforcement route, preservation tools, language, evidence, and where the other side’s assets sit. Looking only at registration and administrative fees makes the question too small.

I usually place HKIAC here: not the lowest-cost option, but a tactically useful one for China-related cross-border disputes. Especially where asset preservation is central, the difference on the fee table may not be the point.

The point is whether the money comes back.

If you are considering HKIAC, CIETAC, or another institution for a China-related dispute, reach out to me directly. I can review the arbitration clause, dispute amount, evidence, and asset position, then help you calculate the cost and enforcement path before you decide whether to file.