diff --git a/tauri-app/src/lib/utils/gas.ts b/tauri-app/src/lib/utils/gas.ts
new file mode 100644
index 000000000..2db3ff442
--- /dev/null
+++ b/tauri-app/src/lib/utils/gas.ts
@@ -0,0 +1,3 @@
+// @todo replace this hardcoded value with dynamic fee estimation in rust
+// see https://github.com/rainlanguage/rain.orderbook/issues/79
+export const MAX_FEE_PER_GAS_PLACEHOLDER = '400000000000';
\ No newline at end of file
diff --git a/tauri-app/src/lib/utils/orderRemove.ts b/tauri-app/src/lib/utils/orderRemove.ts
index 46562b336..10b67ef7a 100644
--- a/tauri-app/src/lib/utils/orderRemove.ts
+++ b/tauri-app/src/lib/utils/orderRemove.ts
@@ -2,6 +2,7 @@ import { get } from 'svelte/store';
 import { invoke } from '@tauri-apps/api';
 import { rpcUrl, orderbookAddress, walletDerivationIndex, subgraphUrl } from '../stores/settings';
 import { chainId } from '$lib/stores/chain';
+import { MAX_FEE_PER_GAS_PLACEHOLDER } from './gas';
 
 export async function orderRemove(id: string) {
   await invoke("order_remove", {
@@ -11,8 +12,8 @@ export async function orderRemove(id: string) {
       orderbook_address: get(orderbookAddress),
       derivation_index: get(walletDerivationIndex),
       chain_id: get(chainId),
-      max_priority_fee_per_gas: '400000000000',
-      max_fee_per_gas: '400000000000',
+      max_priority_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
+      max_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
     },
     subgraphArgs: {
       url: get(subgraphUrl)
diff --git a/tauri-app/src/lib/utils/vaultDeposit.ts b/tauri-app/src/lib/utils/vaultDeposit.ts
index 80792bd1f..a9d49d2d5 100644
--- a/tauri-app/src/lib/utils/vaultDeposit.ts
+++ b/tauri-app/src/lib/utils/vaultDeposit.ts
@@ -2,6 +2,7 @@ import { get } from 'svelte/store';
 import { invoke } from '@tauri-apps/api';
 import { rpcUrl, orderbookAddress, walletDerivationIndex } from '../stores/settings';
 import { chainId } from '$lib/stores/chain';
+import { MAX_FEE_PER_GAS_PLACEHOLDER } from './gas';
 
 export async function vaultDeposit(vaultId: bigint, token: string, amount: bigint) {
   await invoke("vault_deposit", {
@@ -15,8 +16,8 @@ export async function vaultDeposit(vaultId: bigint, token: string, amount: bigin
       orderbook_address: get(orderbookAddress),
       derivation_index: get(walletDerivationIndex),
       chain_id: get(chainId),
-      max_priority_fee_per_gas: '400000000000',
-      max_fee_per_gas: '400000000000',
+      max_priority_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
+      max_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
     }
   });
 }
\ No newline at end of file
diff --git a/tauri-app/src/lib/utils/vaultWithdraw.ts b/tauri-app/src/lib/utils/vaultWithdraw.ts
index 5e1a0381e..f61623073 100644
--- a/tauri-app/src/lib/utils/vaultWithdraw.ts
+++ b/tauri-app/src/lib/utils/vaultWithdraw.ts
@@ -2,6 +2,7 @@ import { get } from 'svelte/store';
 import { invoke } from '@tauri-apps/api';
 import { rpcUrl, orderbookAddress, walletDerivationIndex } from '../stores/settings';
 import { chainId } from '$lib/stores/chain';
+import { MAX_FEE_PER_GAS_PLACEHOLDER } from './gas';
 
 export async function vaultWithdraw(vaultId: bigint, token: string, targetAmount: bigint) {
   await invoke("vault_withdraw", {
@@ -15,8 +16,8 @@ export async function vaultWithdraw(vaultId: bigint, token: string, targetAmount
       orderbook_address: get(orderbookAddress),
       derivation_index: get(walletDerivationIndex),
       chain_id: get(chainId),
-      max_priority_fee_per_gas: '400000000000',
-      max_fee_per_gas: '400000000000',
+      max_priority_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
+      max_fee_per_gas: MAX_FEE_PER_GAS_PLACEHOLDER,
     }
   });
 }
\ No newline at end of file