Savings Income Calculator

Savings Income Calculator: Estimate How Much Your Savings Can Generate Each Month

A Savings Income Calculator answers a specific question: given a savings balance and an interest rate, how much monthly or annual income can that balance produce? This is distinct from a savings growth calculator (which projects a growing balance with contributions) — here, the focus is on income. To project long-term balance growth instead, use our Savings Calculator.

All results are illustrative estimates only. Actual returns vary. This calculator does not constitute financial, tax, or legal advice.

Two Income Modes — Clearly Defined

Mode A: Interest Only (Default)

In Interest Only mode, you withdraw only the interest earned — your principal balance remains fully intact. The income calculation is straightforward:

Annual Income = Total Savings Balance × Annual Interest Rate
Monthly Income = Annual Income ÷ 12

This is the most conservative and sustainable approach. As long as the interest rate stays the same, your monthly income is stable indefinitely. Your savings balance never decreases. This mode is appropriate for retirees or anyone who wants income without depleting savings.

Mode B: Withdrawal Mode

In Withdrawal Mode, you set an annual withdrawal rate — the percentage of your balance you withdraw each year, regardless of how much interest is earned. The income is calculated as:

Annual Withdrawal = Total Savings Balance × Withdrawal Rate
Monthly Income = Annual Withdrawal ÷ 12

Important: If your withdrawal rate exceeds your interest rate, your balance will shrink each year. The year-by-year depletion table shows exactly how long your savings will last. If the withdrawal rate equals the interest rate, your balance is approximately preserved. If it's lower, your balance grows.

How to Use This Calculator

• Total Savings Balance ($): The full amount generating income — savings account, bond portfolio, CD, or investment account balance.
• Annual Interest Rate (%): The annual return your balance earns. Use the rate stated by your bank or the expected average return for your portfolio.
• Income Mode: Select "Interest Only" to keep your principal intact, or "Withdrawal Mode" to specify a drawdown rate.
• Annual Withdrawal Rate (%): Active in Withdrawal Mode only. Enter the percentage of your balance you plan to withdraw annually (3–5% is a common planning range).

Illustrative Examples

Example A — Interest Only

• Total Savings Balance: $100,000
• Annual Interest Rate: 5%

Annual Income = $100,000 × 0.05 = $5,000/year. Monthly Income = $5,000 ÷ 12 = $416.67/month. The $100,000 balance remains untouched. This income continues indefinitely as long as the 5% rate holds. Enter your own values above for a personalized figure.

Example B — Withdrawal Mode

• Total Savings Balance: $100,000
• Annual Interest Rate: 4%
• Annual Withdrawal Rate: 4%

Annual Withdrawal = $100,000 × 0.04 = $4,000/year ($333.33/month). Since the withdrawal rate equals the interest rate, the balance is approximately preserved each year. If the withdrawal rate were 6% at 4% interest, the balance would decline by roughly 2% per year — the depletion table shows the year-by-year balance.

The 4% Withdrawal Rate Guideline

The 4% rule is a widely cited retirement planning benchmark: withdrawing 4% of a portfolio annually has historically been likely to sustain a balanced portfolio for 30+ years. It is based on historical stock and bond market data and is widely used as a starting point — not a guarantee. Inflation, market conditions, and spending needs all affect the actual sustainable rate for any individual. For tax-advantaged retirement account projections, see our IRA Calculator.

Interest Income vs. Withdrawal: Key Differences

• Interest Only: Income comes entirely from returns. Balance is permanent. Income is stable. No risk of running out of money.
• Withdrawal at rate = interest rate: Approximately break-even. Balance is roughly preserved. A common approach for indefinite income planning.
• Withdrawal at rate > interest rate: Balance declines over time. Suitable when you plan to spend down savings over a defined period (e.g., 20–30 years of retirement). The depletion table shows exactly when the balance reaches zero.
• Withdrawal at rate < interest rate: Balance grows over time. Income is below the interest earned, so the surplus compounds.

What Savings Produce Income

• High-Yield Savings Accounts: Currently 3–5% annual interest (rates vary). Highly liquid and FDIC-insured up to $250,000.
• Certificates of Deposit (CDs): Fixed rate over a set term. Higher rates for longer terms, but less liquid.
• Treasury Bonds and TIPS: Government-backed fixed income. Lower risk, rates vary with term length and market conditions.
• Dividend-Paying Stocks & Funds: Variable yield; may offer higher income with equity risk. Income is not guaranteed.
• Retirement Accounts (IRA, 401(k)): Tax-advantaged growth; income in retirement depends on balance and withdrawal strategy.

How Much Savings Do You Need to Generate a Target Income?

Working backwards from a target monthly income: if you want $2,000/month ($24,000/year) from interest only at 5%, you need $24,000 ÷ 0.05 = $480,000 in savings. At 4%: $24,000 ÷ 0.04 = $600,000. The required balance scales inversely with the interest rate — halving the rate doubles the balance needed for the same income.

To plan how much you need to save to reach a target balance, use our Savings Goals Calculator.

Tips to Maximize Savings Income

• Shop for the highest available yield — a 1% rate difference on $200,000 is $2,000/year in additional income
• Use a ladder of CDs or bonds to lock in higher rates across different maturities
• Keep interest-generating savings in tax-advantaged accounts where possible to preserve more income net of tax
• Reinvest surplus interest (income above spending needs) to grow the principal and increase future income
• Review the withdrawal rate annually — if markets are down, reducing withdrawals preserves the balance for longer

Frequently Asked Questions

What is the difference between Interest Only mode and Withdrawal Mode?

Interest Only mode calculates income solely from the returns your balance earns — the balance itself is never touched. Withdrawal Mode sets a withdrawal rate applied to the balance, which may be higher, equal to, or lower than the interest rate. If the withdrawal exceeds the interest earned, the balance shrinks over time. The depletion table in Withdrawal Mode shows this year-by-year.

Is a 4% withdrawal rate always safe?

Not universally. The 4% figure is based on historical US stock and bond market data over 30-year periods. In low-return environments, after fees, or for periods longer than 30 years, it may not be sustainable. It is a planning benchmark, not a guarantee. Actual results depend on portfolio returns, inflation, fees, and spending behavior. This calculator does not constitute financial advice — consult a financial advisor for personalized guidance.

Does the calculator account for taxes on interest income?

No. Results are pre-tax. Interest income is generally taxable in the year received unless held in a tax-deferred account (Traditional IRA, 401(k)) or a tax-exempt account (Roth IRA, municipal bond funds). Factor in your marginal tax rate when planning net income from savings.

What happens if interest rates change?

This calculator uses a constant rate entered by you. In practice, rates on savings accounts and many bonds change over time. To model different rate scenarios, run the calculator multiple times with different interest rate inputs. A 1% rate drop on $200,000 reduces annual interest income by $2,000.

How long will my savings last if I withdraw more than the interest earned?

Select Withdrawal Mode and enter a withdrawal rate higher than your interest rate. The year-by-year depletion table will show when the balance reaches zero. Alternatively, set the withdrawal rate equal to or below the interest rate to keep the balance intact indefinitely.

Related Calculators

• Savings Calculator — project how a balance grows over time with compound interest and monthly contributions
• Savings Goals Calculator — find the monthly contribution needed to reach a target savings balance
• IRA Calculator — project year-by-year growth of a tax-advantaged retirement account
• Personal Loan Calculator — compare the cost of borrowing against the income opportunity of keeping savings intact
• Minimum Payment Calculator — understand the cost of credit card debt when weighing it against savings income

Final Thoughts

A savings balance is a capital asset — understanding how much income it can produce gives you a concrete tool for retirement planning, passive income estimation, and financial independence modeling. Whether you choose to draw only the interest (keeping your nest egg intact) or withdraw at a higher rate (spending it down over a defined period), this calculator shows the difference clearly, year by year. All results are estimates; actual income depends on market conditions, tax treatment, and the specific products in which your savings are held.

Enter your savings balance and interest rate above to see your estimated monthly income instantly.