Home Loan Prepayment · Section 24(b) Tax · Indian Bank Rates

Your home loan has a number
nobody calculated for you yet.

PrepayPlanner tells you exactly how much to prepay, when to prepay, and how much tax you keep — month by month. Works offline. No app. No subscription. One Excel file.

Try Free First →
10
Connected sheets
₹60K
Max tax saving/yr
30yr
Schedule modelled
100%
Offline · Your data stays with you
No macros · pure Excel formulas
Data never leaves your laptop
Microsoft Excel 2016+ · LibreOffice
One-time purchase · no renewal

Salaried professionals with a home loan and a question.

If you have a loan and you've wondered "should I prepay or invest?" — this is for you.

Mumbai · Thane · Navi Mumbai
IT Manager, ₹80L loan, HDFC Bank
Comparing prepayment vs SIP returns. Wants a clear break-even number, not a general opinion.
Bangalore · Whitefield · HSR
Software Engineer, ₹1.2Cr loan, SBI
Rate reset happened last month. Wants to know how much the EMI changes and whether to top-up now.
Delhi NCR · Gurgaon · Noida
Finance Professional, ₹60L, Indian Bank
On old tax regime. Wants to know exactly how much prepayment is safe before losing the ₹2L Section 24b benefit.
Hyderabad · Pune · Chennai
Dual-income household, ₹95L, Axis Bank
Both spouses on the loan. Bonus received. Deciding how much to prepay this year without missing the tax deduction.

10 sheets. One decision made clear.

Every sheet is connected. Change a prepayment amount in one place — the tax saving, interest saved, and net worth all update across the file instantly.

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In free preview

Dashboard

Net Worth, Loan Balance, and Net Position in one view. Asset breakdown donut chart, loan progress, and 3D net worth trend — live from your data.

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In free preview (3 months)

Net Worth Tracker

Log savings, FDs, ETFs, property, and investments row by row. 120 months (10 years) pre-built. Enter one row a month — everything updates.

In free preview

Home Loan Setup

Enter principal, tenure, and start date once. Indian Bank's rate reset history (8.5% → 7.65%) built in. Works for any Indian bank — just edit the rate table.

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Full version only

Baseline Amortization

360 months of what you pay with zero prepayment. This is your comparison baseline. Everything else is measured against it.

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Full version only

Prepayment Amortization

Enter any prepayment in any month. Toggle between Reduce Tenure or Reduce EMI. The interest saved and years cut update live.

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Full version only

Prepayment Summary

Total interest saved. Tenure cut. A what-if calculator: "If I want to close in 10 years, what do I need to pay each month?"

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Full version only

Tax Savings — Section 24(b)

FY-wise table: interest paid, ₹2L cap, ₹60K tax saved at 30% slab. Shows exactly how much you can prepay before you lose the benefit — for both scenarios.

Full version only

Data Backup & Restore

Export everything in two columns. When a new version of PrepayPlanner is released, paste them in — your full 10-year history reappears in seconds.

Three minutes once. Two minutes a month.

No learning curve. If you can use Excel, you can use PrepayPlanner.

Set up your loan once

Enter principal, tenure, start date. Your bank's rate history is already there. Took 2 minutes for our testers.

Add your net worth monthly

One row per month — savings, FDs, ETFs, property value. The Dashboard updates the moment you press Enter.

Try a prepayment amount

Type any number into any month's prepayment column. See interest saved and years cut — instantly, no recalculation button.

Read the tax picture

The Tax sheet tells you which financial year you start losing the ₹2L benefit — and the safe maximum you can prepay before that.

Try free. Pay once. Use forever.

No subscription. No account. No app. Download once, use on any laptop.

Free Preview
₹0
Open it before you decide
  • Dashboard — fully live with your data
  • Home Loan Setup — fully editable
  • Net Worth Tracker — 3 months
  • Amortization preview — 13 months
  • All formulas and charts active

Secure payment via Razorpay · UPI · Debit/Credit · Net Banking · EMI available
Download link delivered instantly after payment confirmation.

Questions people ask before buying

My loan is from HDFC / SBI / ICICI, not Indian Bank. Will it work?

Yes. The Indian Bank rate history is pre-filled because it was the first request — but you can edit the interest rate table to match any bank's rate reset dates and percentages. The calculations work identically for any Indian home loan on the monthly reducing balance method.

My loan amount is ₹80L–₹1.5Cr (metro). Is the file built for high-value loans?

Completely. There is no upper limit on the principal amount. The amortization, tax, and prepayment sheets handle any loan size. Metro loans typically run 20–25 years, and the file models all 30 years (360 months) to cover any scenario.

I have a joint home loan with my spouse. Does the tax calculation change?

Each co-borrower can claim up to ₹2L deduction individually under Section 24(b), provided both are co-owners. The file calculates total interest paid — you and your CA can then split the claim between co-borrowers based on ownership ratio. The file doesn't split it automatically, but gives you the exact total interest per financial year.

I use the new tax regime. Is the tax sheet still useful?

Section 24(b) applies only under the old tax regime. If you're on the new regime, the tax sheet won't be relevant for you — but all the prepayment analysis, amortization, and net worth tracker work perfectly regardless of your tax regime choice.

Will my financial data go online or get shared anywhere?

Never. The file has no macros, no internet connections, and no data-sending code — it's a plain .xlsx file with formulas only. It cannot send data anywhere even if it wanted to. Your loan amount, income, assets — everything stays on your laptop.

What happens when PrepayPlanner releases a future update?

The Data Backup sheet exports everything you've entered into two columns. You paste that into the Import sheet of the new version, and all your history reappears. You never start from scratch.

Does it work on Mac? On LibreOffice?

Works on Microsoft Excel for Mac (2016 onwards) and LibreOffice Calc on any platform. Google Sheets has limited support for some formulas used — it may work partially but is not guaranteed. Excel is recommended for full functionality.