diff --git a/src/adapters/ethers/resources/deposits/context.ts b/src/adapters/ethers/resources/deposits/context.ts
index 5135dc9..56f47d3 100644
--- a/src/adapters/ethers/resources/deposits/context.ts
+++ b/src/adapters/ethers/resources/deposits/context.ts
@@ -4,7 +4,7 @@ import type { EthersClient } from '../../client';
 import type { Address, Hex } from '../../../../core/types/primitives';
 import type { DepositParams, DepositRoute } from '../../../../core/types/flows/deposits';
 import type { CommonCtx } from '../../../../core/types/flows/base';
-import type { TxOverrides } from '../../../../core/types/fees';
+import { type TxGasOverrides, toGasOverrides } from '../../../../core/types/fees';
 import type { ResolvedToken, TokensResource } from '../../../../core/types/flows/token';
 import type { ContractsResource } from '../contracts';
 
@@ -22,7 +22,7 @@ export interface BuildCtx extends CommonCtx {
 
   l1AssetRouter: Address;
 
-  gasOverrides?: TxOverrides;
+  gasOverrides?: TxGasOverrides;
   l2GasLimit?: bigint;
   gasPerPubdata: bigint;
   operatorTip: bigint;
@@ -72,7 +72,7 @@ export async function commonCtx(
     bridgehub,
     chainIdL2: BigInt(chainId),
     sender,
-    gasOverrides: p.l1TxOverrides,
+    gasOverrides: p.l1TxOverrides ? toGasOverrides(p.l1TxOverrides) : undefined,
     l2GasLimit: p.l2GasLimit,
     gasPerPubdata,
     operatorTip,
diff --git a/src/adapters/ethers/resources/deposits/index.ts b/src/adapters/ethers/resources/deposits/index.ts
index befc32a..f88a5cb 100644
--- a/src/adapters/ethers/resources/deposits/index.ts
+++ b/src/adapters/ethers/resources/deposits/index.ts
@@ -182,7 +182,13 @@ export function createDepositsResource(
 
         const managed = new NonceManager(client.signer);
         const from = await managed.getAddress();
-        let next = await client.l1.getTransactionCount(from, 'latest');
+        let next: number;
+        if (typeof p.l1TxOverrides?.nonce === 'number') {
+          next = p.l1TxOverrides.nonce;
+        } else {
+          const blockTag = p.l1TxOverrides?.nonce ?? 'latest';
+          next = await client.l1.getTransactionCount(from, blockTag);
+        }
 
         for (const step of plan.steps) {
           // re-check allowance
diff --git a/src/adapters/ethers/resources/deposits/services/gas.ts b/src/adapters/ethers/resources/deposits/services/gas.ts
index 74406a1..28ab9c6 100644
--- a/src/adapters/ethers/resources/deposits/services/gas.ts
+++ b/src/adapters/ethers/resources/deposits/services/gas.ts
@@ -3,7 +3,7 @@
 import type { TransactionRequest } from 'ethers';
 import type { BuildCtx } from '../context';
 import type { DepositRoute } from '../../../../../core/types/flows/deposits';
-import type { TxOverrides } from '../../../../../core/types/fees';
+import type { TxGasOverrides } from '../../../../../core/types/fees';
 import type { Address } from '../../../../../core/types/primitives';
 import {
   quoteL1Gas as coreQuoteL1Gas,
@@ -17,7 +17,7 @@ export type { GasQuote };
 export type QuoteL1GasInput = {
   ctx: BuildCtx;
   tx: TransactionRequest;
-  overrides?: TxOverrides;
+  overrides?: TxGasOverrides;
   fallbackGasLimit?: bigint;
 };
 
diff --git a/src/adapters/ethers/resources/withdrawals/context.ts b/src/adapters/ethers/resources/withdrawals/context.ts
index 5a98b18..2a3607d 100644
--- a/src/adapters/ethers/resources/withdrawals/context.ts
+++ b/src/adapters/ethers/resources/withdrawals/context.ts
@@ -5,7 +5,7 @@ import type { Address } from '../../../../core/types/primitives';
 import { pickWithdrawRoute } from '../../../../core/resources/withdrawals/route';
 import { type WithdrawParams, type WithdrawRoute } from '../../../../core/types/flows/withdrawals';
 import type { CommonCtx } from '../../../../core/types/flows/base';
-import type { TxOverrides } from '../../../../core/types/fees';
+import { type TxGasOverrides, toGasOverrides } from '../../../../core/types/fees';
 import type { Hex } from '../../../../core/types/primitives';
 import type { ResolvedToken, TokensResource } from '../../../../core/types/flows/token';
 import type { ContractsResource } from '../contracts';
@@ -31,7 +31,7 @@ export interface BuildCtx extends CommonCtx {
   l2BaseTokenSystem: Address;
 
   // L2 gas
-  gasOverrides?: TxOverrides;
+  gasOverrides?: TxGasOverrides;
 }
 
 export async function commonCtx(
@@ -79,6 +79,6 @@ export async function commonCtx(
     l2NativeTokenVault,
     l2BaseTokenSystem,
     baseIsEth,
-    gasOverrides: p.l2TxOverrides,
+    gasOverrides: p.l2TxOverrides ? toGasOverrides(p.l2TxOverrides) : undefined,
   } satisfies BuildCtx & { route: WithdrawRoute };
 }
diff --git a/src/adapters/ethers/resources/withdrawals/index.ts b/src/adapters/ethers/resources/withdrawals/index.ts
index c1379c0..86837c5 100644
--- a/src/adapters/ethers/resources/withdrawals/index.ts
+++ b/src/adapters/ethers/resources/withdrawals/index.ts
@@ -193,7 +193,13 @@ export function createWithdrawalsResource(
 
         const managed = new NonceManager(client.getL2Signer());
         const from = await managed.getAddress();
-        let next = await client.l2.getTransactionCount(from, 'pending');
+        let next: number;
+        if (typeof p.l2TxOverrides?.nonce === 'number') {
+          next = p.l2TxOverrides.nonce;
+        } else {
+          const blockTag = p.l2TxOverrides?.nonce ?? 'pending';
+          next = await client.l2.getTransactionCount(from, blockTag);
+        }
 
         for (const step of plan.steps) {
           step.tx.nonce = next++;
diff --git a/src/adapters/viem/resources/deposits/context.ts b/src/adapters/viem/resources/deposits/context.ts
index 41e3d54..21e4656 100644
--- a/src/adapters/viem/resources/deposits/context.ts
+++ b/src/adapters/viem/resources/deposits/context.ts
@@ -3,7 +3,7 @@ import type { ViemClient } from '../../client';
 import type { Address, Hex } from '../../../../core/types/primitives';
 import type { DepositParams, DepositRoute } from '../../../../core/types/flows/deposits';
 import type { CommonCtx } from '../../../../core/types/flows/base';
-import type { TxOverrides } from '../../../../core/types/fees';
+import { type TxGasOverrides, toGasOverrides } from '../../../../core/types/fees';
 import type { ResolvedToken, TokensResource } from '../../../../core/types/flows/token';
 import type { ContractsResource } from '../contracts';
 
@@ -21,7 +21,7 @@ export interface BuildCtx extends CommonCtx {
 
   l1AssetRouter: Address;
 
-  gasOverrides?: TxOverrides;
+  gasOverrides?: TxGasOverrides;
   l2GasLimit?: bigint;
   gasPerPubdata: bigint;
   operatorTip: bigint;
@@ -71,7 +71,7 @@ export async function commonCtx(
     bridgehub,
     chainIdL2: BigInt(chainId),
     sender,
-    gasOverrides: p.l1TxOverrides,
+    gasOverrides: p.l1TxOverrides ? toGasOverrides(p.l1TxOverrides) : undefined,
     l2GasLimit: p.l2GasLimit,
     gasPerPubdata,
     operatorTip,
diff --git a/src/adapters/viem/resources/deposits/index.ts b/src/adapters/viem/resources/deposits/index.ts
index 5fb3efc..af74709 100644
--- a/src/adapters/viem/resources/deposits/index.ts
+++ b/src/adapters/viem/resources/deposits/index.ts
@@ -188,8 +188,13 @@ export function createDepositsResource(
         const stepHashes: Record<string, Hex> = {};
 
         const from = client.account.address;
-        // TODO: remove this
-        let next = await client.l1.getTransactionCount({ address: from, blockTag: 'latest' });
+        let next: number;
+        if (typeof p.l1TxOverrides?.nonce === 'number') {
+          next = p.l1TxOverrides.nonce;
+        } else {
+          const blockTag = p.l1TxOverrides?.nonce ?? 'latest';
+          next = await client.l1.getTransactionCount({ address: from, blockTag });
+        }
 
         for (const step of plan.steps) {
           // Re-check allowance
diff --git a/src/adapters/viem/resources/deposits/services/gas.ts b/src/adapters/viem/resources/deposits/services/gas.ts
index 96c3664..9bdc161 100644
--- a/src/adapters/viem/resources/deposits/services/gas.ts
+++ b/src/adapters/viem/resources/deposits/services/gas.ts
@@ -3,7 +3,7 @@
 import { zeroAddress, type TransactionRequest } from 'viem';
 import type { BuildCtx } from '../context';
 import type { DepositRoute } from '../../../../../core/types/flows/deposits';
-import type { TxOverrides } from '../../../../../core/types/fees';
+import type { TxGasOverrides } from '../../../../../core/types/fees';
 import type { Address } from '../../../../../core/types/primitives';
 import {
   quoteL1Gas as coreQuoteL1Gas,
@@ -17,7 +17,7 @@ export type { GasQuote };
 export type QuoteL1GasInput = {
   ctx: BuildCtx;
   tx: TransactionRequest;
-  overrides?: TxOverrides;
+  overrides?: TxGasOverrides;
   fallbackGasLimit?: bigint;
 };
 
diff --git a/src/adapters/viem/resources/withdrawals/context.ts b/src/adapters/viem/resources/withdrawals/context.ts
index b952098..7f81aee 100644
--- a/src/adapters/viem/resources/withdrawals/context.ts
+++ b/src/adapters/viem/resources/withdrawals/context.ts
@@ -5,7 +5,7 @@ import type { Address } from '../../../../core/types/primitives';
 import { pickWithdrawRoute } from '../../../../core/resources/withdrawals/route';
 import { type WithdrawParams, type WithdrawRoute } from '../../../../core/types/flows/withdrawals';
 import type { CommonCtx } from '../../../../core/types/flows/base';
-import type { TxOverrides } from '../../../../core/types/fees';
+import { type TxGasOverrides, toGasOverrides } from '../../../../core/types/fees';
 import type { Hex } from '../../../../core/types/primitives';
 import type { ResolvedToken, TokensResource } from '../../../../core/types/flows/token';
 import type { ContractsResource } from '../contracts';
@@ -31,7 +31,7 @@ export interface BuildCtx extends CommonCtx {
   l2BaseTokenSystem: Address;
 
   // L2 gas
-  gasOverrides?: TxOverrides;
+  gasOverrides?: TxGasOverrides;
 }
 
 export async function commonCtx(
@@ -78,6 +78,6 @@ export async function commonCtx(
     l2NativeTokenVault,
     l2BaseTokenSystem,
     baseIsEth,
-    gasOverrides: p.l2TxOverrides,
+    gasOverrides: p.l2TxOverrides ? toGasOverrides(p.l2TxOverrides) : undefined,
   } satisfies BuildCtx & { route: WithdrawRoute };
 }
diff --git a/src/adapters/viem/resources/withdrawals/index.ts b/src/adapters/viem/resources/withdrawals/index.ts
index 79da474..65ad4fd 100644
--- a/src/adapters/viem/resources/withdrawals/index.ts
+++ b/src/adapters/viem/resources/withdrawals/index.ts
@@ -190,6 +190,15 @@ export function createWithdrawalsResource(
         const stepHashes: Record<string, Hex> = {};
 
         const l2Wallet = client.getL2Wallet();
+        const from = client.account.address;
+
+        let next: number;
+        if (typeof p.l2TxOverrides?.nonce === 'number') {
+          next = p.l2TxOverrides.nonce;
+        } else {
+          const blockTag = p.l2TxOverrides?.nonce ?? 'pending';
+          next = await client.l2.getTransactionCount({ address: from, blockTag });
+        }
 
         for (const step of plan.steps) {
           if (p.l2TxOverrides) {
@@ -237,6 +246,8 @@ export function createWithdrawalsResource(
                 }
               : {};
 
+          const nonce = next++;
+
           const baseReq = {
             address: step.tx.address,
             abi: step.tx.abi as Abi,
@@ -244,6 +255,7 @@ export function createWithdrawalsResource(
             args: step.tx.args ?? [],
             account: step.tx.account ?? l2Wallet.account ?? client.account,
             gas: step.tx.gas,
+            nonce,
             ...fee1559,
             ...(step.tx.dataSuffix ? { dataSuffix: step.tx.dataSuffix } : {}),
             ...(step.tx.chain ? { chain: step.tx.chain } : {}),
diff --git a/src/core/types/fees.ts b/src/core/types/fees.ts
index b2a8403..247cd9f 100644
--- a/src/core/types/fees.ts
+++ b/src/core/types/fees.ts
@@ -49,4 +49,19 @@ export type TxOverrides = {
   gasLimit: bigint;
   maxFeePerGas: bigint;
   maxPriorityFeePerGas?: bigint;
+  /** Optional nonce override.
+   *  - number: use as the starting nonce directly (skip getTransactionCount). If there are multiple transactions,
+   * the specified number will be used as a starting nonce and incremented for each transaction.
+   *  - 'latest' | 'pending': call getTransactionCount with the given block tag.
+   */
+  nonce?: number | 'latest' | 'pending';
 };
+
+/** TxOverrides without the nonce field. */
+export type TxGasOverrides = Omit<TxOverrides, 'nonce'>;
+
+export function toGasOverrides(overrides: TxOverrides): TxGasOverrides {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const { nonce: _, ...gas } = overrides;
+  return gas;
+}