If you only look at the fee table for AUD limit orders, CoinJar Exchange's regular maker fee of 0.10% is far lower than OKX Australia's retail account rate of 0.70%. But this comparison has an easy-to-miss premise: OKX Australia's retail fee structure is not the same as the global OKX version you may be familiar with, and CoinJar Exchange's low fees are a completely separate system from the "instant buy" feature in the main CoinJar app. Which one you choose depends on which interface you actually open, whether your limit order gets filled, and whether you are willing to trade lower fees for deeper liquidity and a wider range of coins.
A leading global cryptocurrency platform,suitable for both beginners and experienced traders.
New user benefit: 20% off trading fees upon registration!！
First, put the two "limit order fees" into the same context
OKX Australia's retail spot fees follow a new framework effective after April 22, 2026. According to OKX's official Australian fee table, the regular tier (assets 0–150,000 AUD or 30-day trading volume 0–200,000 AUD) has both maker and taker fees of 0.70%. From VIP 1, the maker fee drops to 0.45% and taker to 0.50%, but you need 150,000 AUD in assets or 200,000 AUD in 30-day trading volume. For most people just starting to buy crypto with AUD, the 0.70% tier applies.
CoinJar Exchange's fee table clearly separates maker and taker fees. For AUD, USD, and GBP trading pairs in the 0–100,000 AUD 30-day volume range, both maker and taker fees are 0.10% (including GST). Maker fees drop further as volume increases: 0.08% maker and 0.10% taker for 100,000 to 1 million AUD. CoinJar Exchange supports limit orders and also allows order placement through TradingView integration.
Looking at the numbers alone, CoinJar Exchange's 0.10% versus OKX Australia retail's 0.70% is a sevenfold difference. If you buy a few hundred to a few thousand AUD worth of crypto per month using limit orders, CoinJar Exchange's advantage in visible fees is clear. At 1,000 AUD per month and 12,000 AUD per year, CoinJar Exchange maker fees would be about 12 AUD, while OKX Australia retail would be about 84 AUD. That difference is concrete enough that it needs no vague wording.
But CoinJar's low fees only apply to the Exchange, not the main app
CoinJar has two entry points: the main app's "instant buy" and CoinJar Exchange. The main app's instant buy fees are typically in the 1%–2% range, while the Exchange is the trading interface with the 0.10% maker fee. If you tap "Buy" directly in the CoinJar app, you are not getting the Exchange rate.
This means the premise for choosing CoinJar is: you are willing to use the Exchange interface (web or in-app redirect), and you accept that it behaves more like a trading terminal than a one-click buy tool. CoinJar Exchange is positioned for active traders, market makers, and institutions. Its interface and operational logic differ from the simplified purchase flow in the main app. If you want to "set a limit order and forget it," the Exchange can do that. If you want to "tap once and be done," the main CoinJar app's fees are not better than OKX.
On OKX's side, the Australian retail account's spot trading is already an exchange interface, and limit orders are a standard feature. You do not need to switch between a "simple mode" and a "trading mode," but the cost is that the regular tier's 0.70% fee is front and center.
Liquidity is the key to whether a limit order gets filled, and you cannot judge that from a fee table alone
The core of a limit order is not just placing it, but whether there is a counterparty to fill it at your price. CoinJar Exchange is an Australian domestic exchange with about 60 coins, with liquidity concentrated in major AUD trading pairs. OKX is a global exchange with about 300 coins on its Australian site, but there is no publicly available comparison data to definitively conclude how OKX's Australian local order book depth compares to CoinJar's.
One practical impact: if you place a limit order slightly away from the market price, on a thinner order book you may wait longer or even never get filled. Low fees only create value when the order actually fills. Placing an order at 0.10% on CoinJar Exchange that does not fill for three days does not turn saved fees into actual profit. On OKX, placing an order at 0.70% that fills faster because of a deeper order book may be worth the cost.
There is no universal answer to this judgment. It depends on what coin you buy, what price you set, and how long you are willing to wait. For major coins (BTC, ETH) in AUD pairs, both platforms can fill orders, and CoinJar's fee advantage is easier to realize. For smaller market cap coins, OKX's coin coverage and potential liquidity advantage may outweigh the fee disadvantage.
Deposits, withdrawals, and tax reports are another dimension of the trade-off
For AUD deposits, OKX Australia supports free PayID and bank transfer deposits, while card deposits incur a 1.50% fee. CoinJar also supports PayID and bank transfers, and as an Australian domestic exchange (operating since 2013, registered with AUSTRAC), it automatically generates Australian tax reports every year, a service OKX does not provide. If you need to organize crypto transaction records for Australian tax filing, CoinJar's feature saves you the time of compiling data yourself. This value does not appear on a fee table, but for holders who need compliant tax reporting, it may be more practical than a fee difference of a few dozen AUD per year.
OKX's advantages include 24/7 online customer support, broader coin coverage, and advanced order types such as stop-loss and conditional orders. CoinJar Exchange supports limit orders and stop limit orders, but the overall product line is simpler, with no futures or options. If you only buy spot crypto with AUD limit orders, both platforms can meet your needs. If you may later use more complex orders or trade other products, OKX offers better extensibility.
My verdict
If you buy major coins (BTC/ETH) with AUD limit orders every month, with amounts within a few thousand AUD, and you do not mind using the Exchange interface instead of one-click buying, CoinJar Exchange is more suitable. The 0.10% maker fee is a tangible advantage at regular trading volumes, and the local tax report reduces future compliance hassle. The trade-offs are fewer coin choices, shallower liquidity than a global exchange, and the need to distinguish between the Exchange and the main app.
If the coins you need to trade are not among CoinJar's roughly 60 supported assets, or you want to keep the option of using advanced orders and a broader market in the future, OKX Australia is more suitable. The 0.70% regular maker fee is not low, but you get deeper global liquidity and a wider product line in return. If you can reach the VIP 1 threshold (150,000 AUD in assets or 200,000 AUD in 30-day volume), fees drop to 0.45%/0.50%, narrowing the gap, but this is not a condition most dollar-cost averaging or small buyers can trigger in the short term.
There is also a middle path: if you already have assets or trading habits on OKX, there is no need to migrate to CoinJar specifically for a 0.60% fee difference. At a few hundred AUD of monthly buying volume, the annual difference may be less than the cost of a meal. When choosing a platform, put "the interface you will actually use" and "which order book your coin is more likely to fill on" ahead of fees. That will cause fewer regrets than simply comparing numbers.
A leading global cryptocurrency platform,suitable for both beginners and experienced traders.
New user benefit: 20% off trading fees upon registration!！
References
- OKX Australia Fee Tables, 2026-11-03
- OKX Notice: Updates to OKX AU Trading Fees, 2026-11-03
- CoinJar Cryptocurrency Trading Fees & Spreads, 2026-11-03
- CoinJar Trade on CoinJar Exchange directly from TradingView, 2026-11-03
- BankMate OKX Fees (Oct 2026), 2026-11-03
- Investmatch CoinJar vs OKX: which Australian platform should you pick?, 2026-11-03
- BankMate Cheapest Trading Screen Australia, 2026-11-03
- CoinCodeCap CoinJar Australia Review, 2026-11-03
