Discover optimal prepayment timing with detailed ROI analysis
Add your custom prepayment scenario to see exact interest savings and ROI compared to standard strategies below.
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Calculate EMI FirstEnter loan details and calculate EMI to see detailed prepayment strategies with ROI analysis
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Enter loan amount, interest rate, and tenure above
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| Year | Principal | Interest | Total Payment | Balance | Loan Paid To Date |
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Without Prepayment Interest: โน 0
With Prepayment Interest: โน 0
๐ฐ Interest Saved: โน 0 (0%)
โณ Loan Closed Early By: 0
๐ Prepayment ROI: 0
Detailed comparison of loan scenarios with and without prepayment
Complete guide to all features โ read once, use like a pro.
Start by entering your loan details. There are 3 main inputs โ Loan Amount, Interest Rate, and Loan Tenure. Each input has both a text box and a slider below it. You can use either one.
๐ Loan Amount
Type the total loan amount you want to borrow. Example: 1000000 means โน10 Lakh.
The Loan Amount Slider below the input lets you drag left/right to increase or decrease the amount visually.
Minimum value is โน10,000. You can also directly type any number in the box.
๐ Interest Rate
Enter the annual interest rate your bank charges. Example: 15 means 15% per year.
The Interest Rate Slider lets you drag to compare different rates quickly without retyping.
Most home loans are between 8%โ12%, personal loans between 12%โ24%.
โณ Loan Tenure (Years / Months)
Enter how long you will take to repay the loan. You can switch between Years and Months using the toggle button next to the input.
Example: 12 in Years mode = 12 years = 144 monthly EMIs.
Example: 144 in Months mode = same thing.
The Tenure Slider (#tenureSlider) lets you drag to see how shorter or longer tenure affects your EMI and total interest instantly.
Prepayment means paying extra money on top of your regular EMI to reduce your loan faster. This section lets you add one or more prepayments at different EMI numbers.
Fields explained:
6 means after your 6th monthly EMI. This is NOT the calendar month โ it is the count of EMIs from the start of your loan.๐ก Tip: After filling all fields, click Add Prepayment button. You can add multiple prepayments at different EMI numbers. Each prepayment will reduce your outstanding principal, which lowers future interest and can shorten your loan tenure.
This table shows you what happens to your loan if you make a prepayment at a specific EMI number with a specific amount. It is a quick what-if analysis tool.
๐ก How to use: Try different amounts and EMI numbers to find the best time to prepay. Earlier prepayments usually give higher interest savings.
The Amortization Table shows a complete year-by-year and month-by-month breakdown of your entire loan repayment journey.
๐ Start Date Selection
You can select the Start Month and Year of your loan from the dropdown.
โ Current: Uses today's month and year as loan start date.
โ Past date: If your loan already started, select the actual start month/year to see how many EMIs are done.
โ Future date: If loan starts next month or next year, select that date to plan ahead.
This affects which year rows appear in the table and how EMI numbers map to calendar months.
๐ Table Columns Explained
๐ Year Summary Card (when you expand a year)
When you expand a year, you also see a month-by-month table showing each EMI's principal, interest, total payment, remaining balance, and prepayment (if any). Click any month row to see a detailed popup with full calculation breakdown for that specific EMI.
This table compares your loan without prepayment vs with prepayment side by side so you can clearly see the impact.
Columns:
Parameters explained:
When you make a prepayment, banks give you two options โ reduce your EMI amount OR reduce your loan tenure. This engine compares all three scenarios so you can choose the best strategy.
Table Parameters explained:
๐ก General rule: Reduce Tenure almost always saves more total interest than Reduce EMI.
This is a toggle checkbox/switch. When turned ON, the EMI breakup charts and tables will include your prepayment amounts as part of the monthly payment breakdown.
This gives a more complete picture of your actual monthly cash outflow.
When turned OFF, only the regular EMI (principal + interest) is shown in the breakup, and prepayment is shown separately.
Use this to switch between a standard view and a comprehensive cash flow view.
This input lets you enter how many EMIs you have already paid.
Example: If your loan started 2 years ago and you have paid 24 EMIs, enter 24 here.
The tool will then split your loan into two parts:
โ EMI Paid section: Shows principal paid, interest paid, and prepayments made so far.
โ EMI Remaining section: Shows how much principal, interest, and future prepayments are still left.
This is useful for tracking your current loan status and understanding how far along you are in your repayment journey.
Financial Summary
Prepayment Breakdown
Cash Flow Analysis
All examples use: Loan โน10,00,000 | Interest 15% per year | Tenure 12 years
Example 1 โ Basic Calculation (No Prepayment)
10000001512Example 2 โ One Big Prepayment at EMI No. 12
Example 3 โ Prepayment with Bank Charges
2%, GST: 18%Example 4 โ Using Strategy Comparison (Reduce Tenure vs Reduce EMI)
Example 5 โ Tracking Current Loan Status
42 in Select Paid EMI Count.Example 6 โ Multiple Small Prepayments Every Year
๐ Loan Details: Amount: โน5,00,000 | Interest: 12% per year | Tenure: 5 years (60 months)
Example 7 โ Late Prepayment (After 6 Years on a Long Loan)
๐ Loan Details: Amount: โน30,00,000 | Interest: 9.5% per year | Tenure: 20 years (240 months)
Example 8 โ Prepayment With Bank Charges, Is It Worth It?
๐ Loan Details: Amount: โน8,00,000 | Interest: 13.5% per year | Tenure: 7 years (84 months)
2%, GST 18%.Example 9 โ Short Tenure vs Long Tenure, Which is Better?
๐ Loan Details: Amount: โน20,00,000 | Interest: 10.5% per year | Compare: 15 years vs 10 years
Example 10 โ Full Power Mode: Best Tenure + Two Early Prepayments
๐ Loan Details: Amount: โน15,00,000 | Interest: 11% per year | Tenure: 10 years (120 months)
Example 11 โ Small Personal Loan, One Prepayment with Charges
๐ Loan Details: Amount: โน3,00,000 | Interest: 16% per year | Tenure: 3 years (36 months)
50000
6
2%
18%
Example 12 โ Car Loan with 1% Charge + GST
๐ Loan Details: Amount: โน7,00,000 | Interest: 10% per year | Tenure: 6 years (72 months)
120000
12
1%
18%
Example 13 โ Home Loan, Two Prepayments at Different Times with Charges
๐ Loan Details: Amount: โน40,00,000 | Interest: 8.5% per year | Tenure: 18 years (216 months)
300000, EMI No. 18, Charges 1.5%, GST 18% โ Add Prepayment
500000, EMI No. 36, Charges 1.5%, GST 18% โ Add Prepayment
Example 14 โ When Charges Are Too High, Prepayment May Not Be Worth It
๐ Loan Details: Amount: โน12,00,000 | Interest: 11.5% per year | Tenure: 4 years (48 months)
80000
40
3%
18%
Example 15 โ Business Loan, Three Prepayments, High Charges, Still Worth It?
๐ Loan Details: Amount: โน25,00,000 | Interest: 14% per year | Tenure: 10 years (120 months)
200000, EMI No. 10, Charges 2%, GST 18% โ Add Prepayment
300000, EMI No. 22, Charges 2%, GST 18% โ Add Prepayment
250000, EMI No. 34, Charges 2%, GST 18% โ Add Prepayment
Example 16 โ Car Loan, Monthly Small Prepayment Adds Up Big
๐ Loan Details: Amount: โน4 Lakh | Interest: 11% per year | Tenure: 4 years (48 months)
1500, EMI No. 1, Charges 0%, GST 0% โ Add
1500, EMI No. 2, Charges 0%, GST 0% โ Add
Example 17 โ Home Loan, Monthly Prepayment with 1% Bank Charge
๐ Loan Details: Amount: โน20 Lakh | Interest: 9% per year | Tenure: 15 years (180 months)
5000, EMI No. 1, Charges 1%, GST 18% โ Add
5000, EMI No. 2, Charges 1%, GST 18% โ Add
Example 18 โ Personal Loan, Quarterly Prepayment (Bonus Income)
๐ Loan Details: Amount: โน6 Lakh | Interest: 15% per year | Tenure: 4 years (48 months)
10000, EMI No. 3, Charges 2%, GST 18% โ Add
10000, EMI No. 6, Charges 2%, GST 18% โ Add
10000, EMI No. 9, Charges 2%, GST 18% โ Add
Example 19 โ Home Loan, Quarterly Prepayment Growing Over Years
๐ Loan Details: Amount: โน10 Lakh | Interest: 8.75% per year | Tenure: 12 years (144 months)
8000, Charges 1.5%, GST 18% โ Add each (8 prepayments)
15000, Charges 1.5%, GST 18% โ Add each (8 prepayments)
Example 20 โ Car Loan, Half Yearly Prepayment from Annual Bonus
๐ Loan Details: Amount: โน8 Lakh | Interest: 10% per year | Tenure: 6 years (72 months)
20000, EMI No. 6, Charges 1%, GST 18% โ Add
20000, EMI No. 12, Charges 1%, GST 18% โ Add
20000, EMI No. 18, Charges 1%, GST 18% โ Add
Example 21 โ Personal Loan, Half Yearly Prepayment with High Charges
๐ Loan Details: Amount: โน5 Lakh | Interest: 16% per year | Tenure: 3 years (36 months)
30000, EMI No. 6, Charges 3%, GST 18% โ Add
30000, EMI No. 12, Charges 3%, GST 18% โ Add
30000, EMI No. 18, Charges 3%, GST 18% โ Add
30000, EMI No. 24, Charges 3%, GST 18% โ Add
Example 22 โ Home Loan, Yearly Prepayment Using Tax Refund
๐ Loan Details: Amount: โน25 Lakh | Interest: 9.5% per year | Tenure: 20 years (240 months)
40000, EMI No. 12, Charges 0%, GST 0% โ Add
40000, EMI No. 24, Charges 0%, GST 0% โ Add
Example 23 โ Car Loan, Yearly Prepayment with 2% Charge
๐ Loan Details: Amount: โน12 Lakh | Interest: 11% per year | Tenure: 7 years (84 months)
60000, EMI No. 12, Charges 2%, GST 18% โ Add
60000, EMI No. 24, Charges 2%, GST 18% โ Add
60000, EMI No. 36, Charges 2%, GST 18% โ Add
60000, EMI No. 48, Charges 2%, GST 18% โ Add
60000, EMI No. 60, Charges 2%, GST 18% โ Add
Example 24 โ Personal Loan, One Large Lump Sum Prepayment Mid Tenure
๐ Loan Details: Amount: โน8 Lakh | Interest: 14% per year | Tenure: 5 years (60 months)
150000, EMI No. 30, Charges 2.5%, GST 18% โ Add Prepayment
Example 25 โ Home Loan, Two Strategic Prepayments Early On
๐ Loan Details: Amount: โน18 Lakh | Interest: 9.25% per year | Tenure: 18 years (216 months)
80000, EMI No. 8, Charges 1%, GST 18% โ Add
120000, EMI No. 20, Charges 1%, GST 18% โ Add
Example 26 โ Home Loan, Three Prepayments: Monthly + Half Yearly + Lump Sum
๐ Loan Details: Amount: โน35 Lakh | Interest: 8.5% per year | Tenure: 20 years (240 months)
5000, Charges 0%, GST 0% (12 entries)
25000, Charges 0%, GST 0% (3 entries)
36, Amount 200000, Charges 0%, GST 0% (1 entry)
Example 27 โ โน50 Lakh Home Loan: Prepayment vs Fixed Deposit, Which Wins?
๐ Loan Details: Amount: โน50 Lakh | Interest: 9% per year | Tenure: 20 years (240 months)
200000, EMI No. 12, Charges 0%, GST 0% โ Add Prepayment
Strategy 1 โ Prepay as Early as Possible
In the first few years of any loan, almost 80%โ90% of your EMI goes to interest and only 10%โ20% reduces principal.
Any extra amount paid in early months directly attacks the principal โ which reduces all future interest calculations.
How to do it in this tool: Add a prepayment at EMI No. 1 to 24 and see how much interest it saves in the Prepayment Impact Table.
You will notice savings drop sharply if you prepay after EMI 60+.
Strategy 2 โ Always Choose Reduce Tenure After Prepayment
When you call your bank after a prepayment, they will ask: reduce EMI or reduce tenure?
Always say reduce tenure unless you have a serious cash flow problem.
Reducing tenure means your outstanding principal reduces every month faster, which means less interest every single month going forward.
Reducing EMI keeps tenure same โ you just pay a little less each month but the bank still earns interest for the full original period.
How to verify in this tool: Use the Strategy Comparison Engine โ the Reduce Tenure column will always show higher interest saved.
Strategy 3 โ Increase Your EMI Amount by 5% Every Year
Every year when you get a salary hike, increase your EMI by 5%โ10%.
Example: EMI is โน14,100. Next year pay โน14,800. Year after pay โน15,500 and so on.
This extra โน700โโน1,400 per month acts as a small regular prepayment and can cut 2โ4 years off a 12-year loan.
How to simulate in this tool: Add small prepayments (โน700โโน1,400) at EMI No. 13, 25, 37, 49... (every 12 EMIs) to approximate yearly EMI increase. Check total interest saved in Financial Summary.
Strategy 4 โ Use Windfalls Immediately for Prepayment
Bonus, tax refund, gift money, freelance income โ any unexpected money should go straight to loan prepayment before you spend it on anything else.
Even โน10,000โโน20,000 at the right time can save โน30,000โโน60,000 in interest.
How to use this tool: Every time you receive extra money, open the tool, add that amount as prepayment at the current EMI number, and check the Interest Saved in the Impact Table before deciding.
This tool helps you see the exact rupee value of your decision instantly.
Strategy 5 โ Switch to a Lower Interest Rate (Balance Transfer)
If your current loan is at 15% and another bank offers 11%, a balance transfer can save a huge amount.
A 4% rate reduction on โน10 lakh over 8 remaining years saves approximately โน2,50,000โโน3,00,000 in interest.
How to compare in this tool: Calculate twice โ once with 15% rate, once with 11% rate (same remaining tenure and balance). Compare the Total Interest values. If saving is more than transfer charges, go for it.
Best time to do balance transfer: In the first half of your loan tenure when interest component is highest.
Strategy 6 โ Make One Extra EMI Payment Per Year
Pay 13 EMIs in a year instead of 12. This one extra EMI per year is equivalent to a prepayment of โน14,100 at the start of each year.
Over 12 years that is 12 extra payments = โน1,69,200 extra paid.
Interest saved โ โน2,20,000 and loan closes approximately 16โ18 months early.
How to simulate in this tool: Add 12 prepayments of โน14,100 at EMI No. 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144. See the total impact in Financial Summary.
Strategy 7 โ Shorten Tenure From Day One
The most powerful thing you can do is negotiate a shorter tenure when you take the loan.
People often take 20-year loans to keep EMI low โ but this costs a fortune in interest.
Rule of thumb: Take the shortest tenure your monthly budget can handle comfortably.
How to find the right tenure in this tool: Use the Tenure Slider. Drag it left slowly and watch how EMI increases but Total Interest drops sharply. Find the tenure where EMI is still within your budget โ that is your sweet spot. Even cutting from 12 years to 10 years on โน10 lakh at 15% saves approximately โน1,80,000 in interest.
โก Quick Comparison โ Which Strategy Saves the Most?
| Strategy | Effort | Est. Interest Saved | Best For |
|---|---|---|---|
| Short tenure from day one | ๐ข Easy | โน1,80,000+ | New loan takers |
| Early lump sum prepayment | ๐ก Medium | โน1,50,000โโน5,00,000 | Existing loan, have savings |
| Reduce tenure after prepayment | ๐ข Easy | โน50,000โโน2,00,000 | After any prepayment |
| Extra EMI once a year | ๐ข Easy | โน2,00,000โโน2,50,000 | Salaried with annual bonus |
| 5% EMI increase every year | ๐ก Medium | โน1,50,000โโน2,50,000 | Regular salary growth |
| Balance transfer to lower rate | ๐ด Hard | โน2,00,000โโน4,00,000 | First 5 years of loan |
| Windfall prepayments | ๐ก Medium | Varies | Anyone with irregular income |
* Estimates based on โน10,00,000 loan at 15% for 12 years. Your actual savings will vary based on loan size and timing.
โน๏ธ All calculations are estimates based on standard reducing balance method.
Actual bank figures may vary slightly due to rounding, processing dates, or bank-specific policies.
Always verify final numbers with your bank before making financial decisions.