diff --git a/src/app/lib/transaction.ts b/src/app/lib/transaction.ts
index e36f09fbda..ffcd556102 100644
--- a/src/app/lib/transaction.ts
+++ b/src/app/lib/transaction.ts
@@ -5,7 +5,7 @@ import { ContextSigner, Signer } from '@oasisprotocol/client/dist/signature'
 import { WalletError, WalletErrors } from 'types/errors'
 import { getEvmBech32Address } from 'app/lib/eth-helpers'
 import { isValidEthAddress } from 'app/lib/eth-helpers'
-import { ParaTimeTransaction, TransactionTypes } from 'app/state/paratimes/types'
+import { ParaTimeTransaction, Runtime, TransactionTypes } from 'app/state/paratimes/types'
 import { addressToPublicKey, parseRoseStringToBigNumber, shortPublicKey } from './helpers'
 import { consensusDecimals } from '../../config'
 
@@ -25,9 +25,6 @@ export type TW<T> = oasis.consensus.TransactionWrapper<T>
 /** Runtime Transaction Wrapper */
 type RTW<T> = oasisRT.wrapper.TransactionWrapper<T, void>
 
-// A wild guess: the minimum gas price on Emerald (100 nano ROSE) times the default loose
-// overestimate of the gas (15k).
-const defaultWithdrawFeeAmount = '1500000'
 const defaultDepositFeeAmount = '0'
 
 export class OasisTransaction {
@@ -130,12 +127,11 @@ export class OasisTransaction {
     signer: Signer,
     transaction: ParaTimeTransaction,
     fromAddress: string,
-    runtimeId: string,
-    runtimeDecimals: number,
+    runtime: Runtime,
   ): Promise<RTW<oasisRT.types.ConsensusDeposit | oasisRT.types.ConsensusWithdraw>> {
     const { amount, recipient: targetAddress, type } = transaction
     const isDepositing = type === TransactionTypes.Deposit
-    const consensusRuntimeId = oasis.misc.fromHex(runtimeId)
+    const consensusRuntimeId = oasis.misc.fromHex(runtime.id)
     const txWrapper = new oasisRT.consensusAccounts.Wrapper(consensusRuntimeId)[
       isDepositing ? 'callDeposit' : 'callWithdraw'
     ]()
@@ -150,13 +146,15 @@ export class OasisTransaction {
           ? transaction.feeAmount
           : isDepositing
           ? defaultDepositFeeAmount
-          : defaultWithdrawFeeAmount,
+          : // A wild guess: the minimum gas price times the default loose
+            // overestimate of the gas.
+            (runtime.gasPrice * runtime.feeGas).toString(),
       )
-        .shiftedBy(runtimeDecimals)
+        .shiftedBy(runtime.decimals)
         .shiftedBy(-consensusDecimals)
         .toFixed(0),
     )
-    const feeGas = transaction.feeGas ? BigInt(transaction.feeGas) : 15000n
+    const feeGas = transaction.feeGas ? BigInt(transaction.feeGas) : runtime.feeGas
     const signerInfo = {
       address_spec: {
         signature: { [transaction.ethPrivateKey ? 'secp256k1eth' : 'ed25519']: signer.public() },
@@ -167,7 +165,7 @@ export class OasisTransaction {
     txWrapper
       .setBody({
         amount: [
-          oasis.quantity.fromBigInt(BigInt(parseRoseStringToBigNumber(amount, runtimeDecimals).toFixed(0))),
+          oasis.quantity.fromBigInt(BigInt(parseRoseStringToBigNumber(amount, runtime.decimals).toFixed(0))),
           oasisRT.token.NATIVE_DENOMINATION,
         ],
         to: oasis.staking.addressFromBech32(
diff --git a/src/app/state/paratimes/saga.ts b/src/app/state/paratimes/saga.ts
index 40f7990d22..f478dc2de6 100644
--- a/src/app/state/paratimes/saga.ts
+++ b/src/app/state/paratimes/saga.ts
@@ -76,6 +76,8 @@ export function* submitTransaction() {
       address: paraTimeConfig[selectedNetwork].address!,
       id: paraTimeConfig[selectedNetwork].runtimeId!,
       decimals: paraTimeConfig.decimals,
+      gasPrice: paraTimeConfig.gasPrice,
+      feeGas: paraTimeConfig.feeGas,
     }
 
     yield* call(submitParaTimeTransaction, runtime, {
diff --git a/src/app/state/paratimes/types.ts b/src/app/state/paratimes/types.ts
index 384eb0292e..b6657a34e2 100644
--- a/src/app/state/paratimes/types.ts
+++ b/src/app/state/paratimes/types.ts
@@ -42,6 +42,8 @@ export type Runtime = {
   address: string
   id: string
   decimals: number
+  gasPrice: bigint
+  feeGas: bigint
 }
 
 export type ParaTimeTransaction = Pick<
diff --git a/src/app/state/transaction/saga.ts b/src/app/state/transaction/saga.ts
index 1049bf26a1..e06a462902 100644
--- a/src/app/state/transaction/saga.ts
+++ b/src/app/state/transaction/saga.ts
@@ -106,15 +106,7 @@ function* prepareParatimeTransfer(
     yield* call(assertSufficientBalance, BigInt(parseRoseStringToBaseUnitString(transaction.amount)))
   }
 
-  return yield* call(
-    OasisTransaction.buildParaTimeTransfer,
-    nic,
-    signer,
-    transaction,
-    from,
-    runtime.id,
-    runtime.decimals,
-  )
+  return yield* call(OasisTransaction.buildParaTimeTransfer, nic, signer, transaction, from, runtime)
 }
 
 function* prepareAddEscrow(signer: Signer, amount: bigint, validator: string) {
diff --git a/src/config.ts b/src/config.ts
index f34754b175..460964bb73 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -77,6 +77,8 @@ type ParaTimeConfig = {
   mainnet: ParaTimeNetwork
   testnet: ParaTimeNetwork
   local: ParaTimeNetwork
+  gasPrice: bigint
+  feeGas: bigint
   decimals: number
   type: RuntimeTypes
 }
@@ -99,6 +101,8 @@ const emeraldConfig: ParaTimeConfig = {
     address: undefined,
     runtimeId: undefined,
   },
+  gasPrice: 100n,
+  feeGas: 15_000n,
   decimals: 18,
   type: RuntimeTypes.Evm,
 }
@@ -116,6 +120,8 @@ const cipherConfig: ParaTimeConfig = {
     address: undefined,
     runtimeId: undefined,
   },
+  gasPrice: 5n,
+  feeGas: 500_000n,
   decimals: 9,
   type: RuntimeTypes.Oasis,
 }
@@ -133,7 +139,8 @@ const sapphireConfig: ParaTimeConfig = {
     address: undefined,
     runtimeId: undefined,
   },
-
+  gasPrice: 100n,
+  feeGas: 15_000n,
   decimals: 18,
   type: RuntimeTypes.Evm,
 }