Deposits & Withdrawals

How it works

Drift uses a cross-margin system where all your deposits serve as collateral for all your positions across perp and spot markets. When you deposit tokens (like USDC, SOL, or other supported assets), they’re added to your user account’s spot balances. These deposits can be used to back perp positions, and you can borrow against them to increase leverage.

Each deposit in a spot market earns interest from borrowers, while borrows accrue interest charges. Spot balances are tracked with precision (typically 1e6 for USDC, 1e9 for SOL) and can be positive (deposits) or negative (borrows). Your total collateral value is calculated by summing all deposits (weighted by asset weights) and subtracting borrows and unrealized perp losses.

Withdrawals require sufficient free collateral, you can’t withdraw funds that are backing open positions or would put your account below minimum margin requirements. The SDK handles token account derivation and precision conversion automatically.

SDK Usage

Deposits/withdrawals move tokens between your wallet token accounts and your Drift subaccount’s spot position.

Converting amounts and deriving the token account


// marketIndex 0 is commonly USDC
const marketIndex = 0;
const amount = driftClient.convertToSpotPrecision(marketIndex, 100); // 100 USDC (example)

Method DriftClient.convertToSpotPrecisionReference ↗

Parameters:

Name	Type	Default
`marketIndex`	`number`
`amount`	`any`

Returns:

BN


const marketIndex = 0;
const ata = await driftClient.getAssociatedTokenAccount(marketIndex);
console.log(ata.toBase58());

Method DriftClient.getAssociatedTokenAccountReference ↗

Parameters:

Name	Type	Default
`marketIndex`	`number`
`useNative`	`boolean`
`tokenProgram`	`PublicKey`
`authority`	`PublicKey`
`allowOwnerOffCurve`	`boolean`

Returns:

Promise<PublicKey>

Deposit


const marketIndex = 0;
const amount = driftClient.convertToSpotPrecision(marketIndex, 100);
const associatedTokenAccount = await driftClient.getAssociatedTokenAccount(marketIndex);
 
await driftClient.deposit(amount, marketIndex, associatedTokenAccount);

Method DriftClient.depositReference ↗

Parameters:

Name	Type	Default
`amount`	`any` to deposit
`marketIndex`	`number` spot market index to deposit into
`associatedTokenAccount`	`PublicKey` can be the wallet public key if using native sol
`subAccountId`	`number` subaccountId to deposit
`reduceOnly`	`boolean` if true, deposit must not increase account risk
`txParams`	`TxParams` transaction parameters
`initSwiftAccount`	`boolean` if true, initialize a swift account for the user
`overrides`	`{ authority?: PublicKey; }` allows overriding authority for the deposit transaction

Returns:

Promise<string>

Withdraw


const marketIndex = 0;
const amount = driftClient.convertToSpotPrecision(marketIndex, 100);
const associatedTokenAccount = await driftClient.getAssociatedTokenAccount(marketIndex);
 
await driftClient.withdraw(amount, marketIndex, associatedTokenAccount);

Method DriftClient.withdrawReference ↗

Parameters:

Name	Type	Default
`amount`	`any`
`marketIndex`	`number`
`associatedTokenAddress`	`PublicKey` the token account to withdraw to. can be the wallet public key if using native sol
`reduceOnly`	`boolean`
`subAccountId`	`number`
`txParams`	`TxParams`
`updateFuel`	`boolean`

Returns:

Promise<string>

Spot rates (borrow / lend)


import { SPOT_MARKET_RATE_PRECISION, calculateDepositRate, convertToNumber } from "@drift-labs/sdk";
 
const spotMarket = driftClient.getSpotMarketAccount(0);
const rate = calculateDepositRate(spotMarket);
console.log(convertToNumber(rate, SPOT_MARKET_RATE_PRECISION));

Function calculateDepositRateReference ↗

Parameters:

Name	Type	Default
`bank`	`SpotMarketAccount`
`delta`	`any`
`currentUtilization`	`any`

Returns:

BN


import { SPOT_MARKET_RATE_PRECISION, calculateBorrowRate, convertToNumber } from "@drift-labs/sdk";
 
const spotMarket = driftClient.getSpotMarketAccount(0);
const rate = calculateBorrowRate(spotMarket);
console.log(convertToNumber(rate, SPOT_MARKET_RATE_PRECISION));

Function calculateBorrowRateReference ↗

Parameters:

Name	Type	Default
`bank`	`SpotMarketAccount`
`delta`	`any`
`currentUtilization`	`any`

Returns:

BN