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Drift uses Plaid to securely connect to your bank accounts and retrieve transaction data. This integration enables real-time financial analysis and Monte Carlo simulations based on your actual spending patterns.

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How it Works

When you connect your accounts, Drift:
  1. Creates a secure Plaid Link token for your session
  2. Opens Plaid’s authentication interface in your browser
  3. Exchanges the public token for an access token (stored securely)
  4. Retrieves your account data including balances, transactions, and liabilities
Drift uses Plaid’s industry-standard security protocols. Your banking credentials are never stored on Drift’s servers - all authentication happens directly through Plaid.

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Connecting Your First Account

1

Navigate to Login

Go to the Drift login page and click “Connect Bank Account” to begin the Plaid Link flow.
2

Select Your Bank

Search for your financial institution in the Plaid interface. Plaid supports over 12,000 banks and credit unions.Screenshot description: Plaid Link modal showing a search bar and list of popular banks including Chase, Bank of America, Wells Fargo, and Citi.
3

Authenticate

Enter your online banking credentials. This happens securely through Plaid - Drift never sees your login information.
Some banks require multi-factor authentication (MFA). Have your phone ready to receive verification codes.
4

Select Accounts

Choose which accounts to link. You can connect:
  • Checking and Savings (for cash flow analysis)
  • Credit Cards (for debt tracking)
  • Loans (auto, student, mortgage)
  • Investment Accounts (for portfolio analysis)
5

Grant Permissions

Drift requests access to:
  • Account balances
  • Transaction history (last 90 days)
  • Liabilities (credit card debt, loan balances)
  • Investment holdings (optional)

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What Data is Retrieved

Once connected, Drift analyzes your accounts to build a comprehensive financial profile:

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Cash Accounts (Checking/Savings)

// Depository accounts provide:
{
  id: "account_id",
  name: "Chase Total Checking",
  type: "depository",
  subtype: "checking",
  balance: 5420.50,
  institution: "Chase"
}

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Credit Cards

// Credit accounts include:
{
  id: "account_id",
  name: "Chase Sapphire Reserve",
  type: "credit",
  balance: 1250.00,      // Current balance owed
  limit: 10000.00,       // Credit limit
  utilization: 0.125,    // 12.5% utilization
  minimumPayment: 25.00
}

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Loans

// Loan accounts track:
{
  id: "account_id",
  name: "Auto Loan",
  type: "loan",
  loanType: "auto",
  balance: 18500.00,     // Remaining principal
  monthlyPayment: 425.00,
  interestRate: 0.0399,  // 3.99% APR
  originationDate: "2022-06-15"
}

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Investment Accounts

// Investment accounts provide:
{
  id: "account_id",
  name: "Fidelity 401(k)",
  type: "investment",
  balance: 45320.00,
  allocation: {
    stocks: 0.70,   // 70% stocks
    bonds: 0.25,    // 25% bonds
    cash: 0.05      // 5% cash
  },
  securities: [...] // Individual holdings
}

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Transaction Analysis

Drift retrieves the last 90 days of transactions to calculate:

Monthly Income

Salary deposits, freelance payments, and other regular income streams

Spending Patterns

Categorized expenses including dining, shopping, utilities, and subscriptions

Fixed vs Variable

Distinguishes between fixed bills (rent, utilities) and discretionary spending

Spending Volatility

Measures month-to-month variation to model uncertainty in simulations

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Financial Profile Generation

After analyzing your connected accounts, Drift generates a comprehensive financial profile: 
{
  // Assets
  liquidAssets: 12500.00,        // Total in checking + savings
  totalInvestments: 45320.00,    // 401(k), IRA, brokerage
  
  // Liabilities
  creditDebt: 3250.00,           // Total credit card balances
  loanDebt: 28500.00,            // Auto + student loans
  monthlyLoanPayments: 650.00,   // Combined monthly payments
  
  // Cash Flow
  monthlyIncome: 6500.00,        // Average monthly deposits
  monthlySpending: 4200.00,      // Average monthly expenses
  monthlyBills: 2100.00,         // Fixed expenses
  
  // Spending Breakdown
  spendingByCategory: {
    "Food & Dining": 450.00,
    "Shopping": 320.00,
    "Transportation": 280.00,
    "Entertainment": 180.00,
    "Utilities": 210.00,
    // ... more categories
  },
  
  // Metrics
  spendingVolatility: 0.12,      // 12% month-to-month variation
  netWorth: 26070.00             // Assets - Liabilities
}

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Viewing Your Connected Accounts

Once connected, view all your accounts on the Dashboard: Screenshot description: Dashboard showing four sections:
  1. Cash Accounts - Checking and savings with balances
  2. Credit Cards - Current balances and credit limits
  3. Loans - Outstanding balances and monthly payments
  4. Investments - Portfolio values and allocations

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Troubleshooting

If Plaid fails to connect:
  • Wrong credentials: Double-check your username and password
  • MFA timeout: Some banks require quick MFA verification - try again
  • Bank maintenance: Try connecting during business hours
  • Unsupported bank: Not all credit unions support Plaid - check plaid.com/institutions
Plaid retrieves the last 90 days of transactions by default. If you see gaps:
  • Wait 24 hours for initial sync to complete
  • Some banks have transaction delays (1-3 business days)
  • Pending transactions may not appear until posted
Drift refreshes account data when:
  • You manually navigate to the Dashboard
  • You start a new simulation
If data seems stale, disconnect and reconnect the account through Settings.
Plaid can connect multiple accounts from the same institution:
  1. Complete the first connection flow
  2. Click “Connect Another Account”
  3. Select the same bank and authenticate again
  4. Choose different accounts to link

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Security & Privacy

Bank-Level Security

  • 256-bit encryption for all data transmission
  • OAuth authentication - Drift never stores banking credentials
  • Read-only access - Plaid cannot move money or initiate transfers
  • SOC 2 Type II certified infrastructure

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What Drift Stores

Drift stores only the data needed for financial forecasting:
  • Account balances (refreshed on each login)
  • Transaction history (last 90 days)
  • Account metadata (names, types, institutions)
  • Plaid access tokens (encrypted)
Drift does NOT store:
  • Your banking username or password
  • Full account numbers
  • Social Security Numbers
  • Payment card details (CVV, PIN)

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Data Refresh

Drift automatically refreshes your account data:
TriggerWhat Updates
Dashboard loadAll account balances
New simulationBalances + last 90 days transactions
Manual refreshFull financial profile regeneration
For the most accurate simulations, connect your accounts and run simulations at the end of each month when all transactions have posted.

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Next Steps

Set Financial Goals

Use natural language to describe your savings targets

Run Simulations

Generate Monte Carlo forecasts based on your connected accounts

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