Fixed Deposit Periodic Withdrawal Calculator

Typical Use Cases

An emergency fund of 50,000 yuan that you want to withdraw a fixed amount monthly over 3 years to supplement living expenses while earning some interest — this is the most typical use of fixed deposit periodic withdrawal. Let's see what this calculator can help you clarify.

• Household Reserve Fund Planning: Mr. Zhang has 100,000 yuan in idle funds and hopes to withdraw approximately 5,000 yuan monthly over 2 years as living support. He uses the calculator to back-calculate the interest rate or verify if the withdrawal amount is reasonable.
• Supplementary Retirement Income: Ms. Li has 200,000 yuan upon retirement and plans to withdraw money from the bank monthly over 5 years. How much should she withdraw monthly? Using the calculator, she can determine the fixed principal portion each month based on the expected bank interest rate, and also clarify the interest earned.
• Income Management During Startup Phase: Xiao Wang is a freelancer with 60,000 yuan in reserve funds. He plans to withdraw a fixed amount weekly (or monthly) over 1 year to maintain his livelihood. Using the calculator, he can quickly determine how much he can withdraw each period and how much total interest he can earn.

Complete Calculation Example

Let's look at a concrete example: You have a principal of 50,000 yuan and make a fixed deposit with periodic withdrawal at the bank for a term of 3 years (36 months) with an annual interest rate of 1.5%, choosing monthly withdrawals. Open our calculator and fill in the following fields:

• Principal deposited: 50000
• Annual interest rate (%): 1.5
• Deposit term (years): 3
• Withdrawal interval: Monthly

After clicking 'Calculate', the right side will display:

• Fixed principal withdrawal per period: 1388.89 yuan (50000 ÷ 36)
• Interest per period: Declining monthly, approximately 62.50 yuan in the 1st month, approximately 60.76 yuan in the 2nd month, ... approximately 1.74 yuan in the last month
• Total interest: Approximately 1134.38 yuan (precise calculation: 50000 × 1.5% × 3 / 2 ≈ 1125, with slight variations due to monthly compounding differences)
• Amount received in the final period: Principal 1388.89 + current month's interest 1.74 ≈ 1390.63 yuan

Interpretation: If you consistently withdraw on schedule each month, you will withdraw a total principal of 50,000 yuan over 3 years and earn approximately 1,134 yuan in additional interest, which is equivalent to earning about two years' worth of fixed deposit interest on this amount.

More Examples / Multi-Scenario Comparison

Comparative Example: Quarterly Withdrawal vs. Monthly Withdrawal

With the same 50,000 yuan, a 3-year deposit term, and 1.5% interest rate, what would the calculator result be if you switched to quarterly withdrawals (12 times total)?

• Principal per period: 50000 ÷ 12 ≈ 4166.67 yuan
• Total interest: Average capital utilization decreases more slowly, approximately 1500 yuan in total interest (about 400 yuan more than monthly withdrawals)
• 1st quarter interest: 50000 × 1.5% × 0.25 ≈ 187.50 yuan; last quarter interest: 13.02 yuan

It can be seen that the longer the withdrawal interval, the higher the total interest — because more principal remains in each cycle. You can choose an appropriate interval based on your cash flow needs.

Extreme Case: Interest Rate of 0%

If the annual interest rate is set to 0%, then the fixed monthly principal withdrawal is 1388.89 yuan, with 0 interest per period and 0 total interest. This tells you that fixed deposit periodic withdrawal, if interest is not considered, is essentially equal principal periodic withdrawal.

How to Interpret the Results

The right side of the calculator will clearly display three sets of numbers:

• Principal withdrawal per period: This number is fixed and represents the principal portion you can withdraw each time. If your living expense target is below this number, it suggests your principal may be too much; if it's above it, you can consider shortening the deposit term or increasing the principal.
• Total interest: This is the additional return you can earn during the deposit period. Generally, the total interest is approximately (annual interest rate × deposit term ÷ 2)% of the principal. For example, 1.5% × 3 ÷ 2 = 2.25%, meaning 50,000 yuan in principal can earn approximately 1125 yuan in interest, which is close to the calculator result.
• Actual amount received in the final period: This is the final period's principal plus the current month's interest, which can help you plan your final cash flow.

If the calculation results make you feel 'the interest is too low', it means the bank's fixed deposit rate itself is low. You can try adjusting the interest rate or deposit term in the calculator to see the trend of changes.

Common Misuses / Pitfalls to Avoid

1. Confusing Fixed Deposit Periodic Withdrawal with Fixed Deposit Interest Withdrawal: Fixed deposit periodic withdrawal involves periodic principal withdrawal, while fixed deposit interest withdrawal involves periodic interest withdrawal with principal repayment at maturity. Using the wrong formula will result in completely incorrect calculations.
2. Ignoring Actual Day Count Differences: Banks typically calculate interest precisely based on actual days (different month lengths, leap years), while our calculator processes months uniformly (30 or 30.4167 days per month). The result may have a difference of a few cents from the actual bank statement, but it won't affect major decisions.
3. Directly Calculating Monthly Interest Using Nominal Annual Rate: The correct approach is to divide the annual interest rate by the number of withdrawals (such as 12 months) to get the periodic rate, then multiply by the remaining principal at the beginning of that period. Many users incorrectly use the annual interest rate directly multiplied by the remaining principal, resulting in inflated interest.
4. Last Period Not Including Interest: Banks require that the final withdrawal of principal also settles all interest, so the final period amount = remaining principal + current month's interest. If you only count the principal, you will underestimate the final return.
5. Frequent Early Withdrawals: Fixed deposit periodic withdrawal requires withdrawals on the agreed dates. Any missed withdrawal or early withdrawal in between will disrupt the interest calculation rules, and the bank may apply demand deposit interest rates. The calculator assumes you withdraw in full on schedule each time.

Frequently Asked Questions (FAQ)

Q1. How is interest calculated for fixed deposit periodic withdrawal? Is it the same as my manual calculation?
A: Interest is calculated period by period using the remaining principal at the beginning of each period × the periodic interest rate (annual rate / number of annual withdrawals), with all interest summed at the end. Our calculator uses the precise arithmetic sequence formula, which is consistent with your period-by-period manual calculation. However, note that banks may use the 'average product method' for fixed deposit periodic withdrawal, with results being similar. (In our tool, you can click the 'View Details' button to see the interest changes for each period.)

Q2. Can I use this calculator if I only withdraw once a year?
A: Yes, you can. Simply select 'annually' for the withdrawal interval. Note that the deposit term (in years) must be ≥1 and must be a whole number of years. For annual withdrawals, the total number of periods = deposit term.

Q3. Does the 'Total Interest' in the calculation result include taxes?
A: It does not include taxes. Currently, bank fixed deposit interest is subject to a 20% interest tax (temporarily exempted, but the policy may change). The calculator displays pre-tax interest; the actual amount received after deducting applicable taxes should be calculated. We recommend converting based on your local tax policy.

Q4. If the deposit term is 6 months and the withdrawal interval is monthly, is the total number of periods 6?
A: Yes. With a deposit term of 0.5 years and monthly withdrawals, the total number of periods is 6. The calculator will automatically convert the deposit term from years to months, so no manual conversion is needed.

Q5. Why is the interest in the last period not a whole number?
A: This is because each period's principal is rounded when calculated manually, while banks calculate using the full formula (keeping two decimal places). Slight variations are normal. You can see the complete untruncated amounts on the calculator's detailed page.

Q6. What is the difference between fixed deposit periodic withdrawal and equal principal and interest?
A: Fixed deposit periodic withdrawal is a fixed deposit where the principal is deposited once and withdrawn in installments with declining interest. Equal principal and interest is a loan repayment method where a fixed amount (principal + interest) is repaid monthly. The two have opposite cash flows and different formulas; do not confuse them.

Important Notes

• This tool is based on simple interest calculations, assuming equal time intervals for each period (30 days per month, 90 days per quarter, 180 days per semi-annual). Banks actually use the daily accumulation method, so results may have minor variations and are for planning reference only.
• Not applicable to demand deposits, regular deposits with lump-sum withdrawal, flexible deposit and withdrawal, and other deposit types. Fixed deposit periodic withdrawal requires advance agreement on the deposit term and withdrawal schedule, which cannot be arbitrarily changed during the period.
• Interest rates are based on current bank posted rates; please consult the bank teller for actual deposits. This tool does not guarantee prediction of future interest rates.
• If the deposit term is shorter than the withdrawal interval (such as a 6-month deposit term with annual withdrawals), the calculator will show an error — in that case, you can only withdraw the principal and interest once at maturity.
• The calculator is not applicable to large-amount certificates of deposit, structured deposits, and other special products, as these have different interest calculation rules.

Now you can enter your own numbers in the calculator above to see how much you can withdraw monthly and how much total interest you can earn.