Formula: FV = PMT × [(1+r)^n − 1] ÷ r | r = monthly interest, n = number of months
Save every month disciplined, double interest helps money grow.
Monthly Fixed Deposit Calculator
The Monthly Fixed Deposit Calculator estimates a tax and statutory rate estimate for your scenario from the quantities, rates, period, units and other assumptions requested on the page. Replace the example values with your own monthly fixed deposit figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
Enter the monthly deposit amount, interest rate and term to see the total principal and interest received.
Calculation results
Value at maturity
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Total capital
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Interest before taxes.
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Net interest
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Formula used for calculation
FV = PMT × [(1+r)^n − 1] ÷ r
By PMT = monthly payment, r = monthly interest rate (% ÷ 12), n = number of months
Pre-tax interest = FV − (PMT × n)
Net interest = Pre-tax interest × (1 − Tax rate)
Check before using results
Summary before deciding
This calculation result is suitable for preliminary planning. Actual figures should be checked from documents or official sources before making important decisions.
The calculation is based on the information you enter on this page.
Special cases may require additional information.
It is recommended to record or compare the results with the related tools below.
How much interest do monthly deposits in Thailand pay?
Recurring deposits in Thailand currently pay interest rates of 1-3% per year depending on the bank and the period. Some banks have special promotions up to 3.5%.
How different from a fixed deposit?
Fixed deposits are one-time deposits, while recurring deposits are monthly deposits of a fixed amount. They are suitable for people who want to save disciplinedly without having to start with a large amount of money.
How much should I choose to deposit per month?
It is recommended to save at least 10-20% of income per month in the form of regular deposits. Choose the amount that is practically possible to regularly without affecting necessary expenses.
What happens if I don't make my monthly deposit?
Depending on the bank's terms, some may reduce interest rates or cancel contracts, some may be flexible, read the terms before opening an account.
Disclaimer: The results are estimates. Actual interest rates may vary by bank and time period.
English calculator guide
How to use the Monthly Fixed Deposit Calculator
Use this page to test a specific monthly fixed deposit scenario. Enter your own values in the calculator above, review the units beside each field, and recalculate after changing an assumption. The result updates the monthly fixed deposit estimate instead of relying on a generic example.
Build a baseline monthly fixed deposit case with figures that match your situation.
Run a second monthly fixed deposit case after changing the rate, period, quantity or other key assumption.
Record the difference between the two monthly fixed deposit results and the input responsible for it.
Inputs for the monthly fixed deposit estimate
For this monthly fixed deposit calculation, check the quantities, rates, period, units and other assumptions requested on the page. The result is designed to show a tax and statutory rate estimate for your scenario, not a guaranteed provider price or official decision.
How the monthly fixed deposit result is calculated
The calculator applies the displayed statutory rates, thresholds and allowances to the figures you enter. Reusing the same monthly fixed deposit inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a monthly fixed deposit decision
Confirm any current rate, threshold or provider rule that could change the final amount. For monthly fixed deposit, Use the result as a planning estimate and confirm any rate, rule or threshold that may have changed before acting. Because this calculation can affect an important financial, legal or health decision, independently verify the inputs and current rules before relying on the result.
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