Cash Back or Low Interest Calculator
Compare a regular loan vs applying a one-time cashback — see monthly payments, interest, amortization and savings in real time.
Mode
Cashback
Low Interest
Loan Inputs
Currency
Visual only
$ - USD
£ - GBP
€ - EUR
Rs - PKR
¥ - JPY
Purchase / Loan Amount
$
Enter the full purchase price or loan principal.
Cashback Amount or %
One-time
Amount
Percent (%)
If percent chosen, cashback = amount × percent / 100.
Annual Interest Rate (%)
Nominal annual interest rate (APR) for the loan.
Term
Months
Years
Choose months or years for the term.
Payments Per Year
Monthly (12)
Biweekly (26)
Weekly (52)
Yearly (1)
Change to recalc for different payment frequencies.
Precision (decimal places)
Advanced Options
optional
Apply cashback immediately to principal (reduce loan)
Round monthly payment to cents
Save Settings
Load
Last saved:
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View Amortization
Export CSV
Print
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Results
Calculated in real-time
Original Monthly Payment
—
Based on full loan principal.
Net Monthly Payment
—
After applying cashback (if configured).
Total Interest
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Total Paid
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Cashback Received
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Total Paid After Cashback
—
Savings vs Original
Monthly Savings
—
Total Savings
—
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Notes
Cashback is modeled as a one-time immediate reduction to principal when selected.
For low-interest offers, set cashback to 0 and adjust the interest rate.
Payments frequency affects per-payment amounts (monthly, biweekly, weekly).
Quick Comparison
Metric
Original
With Cashback
Principal
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Monthly Payment
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Total Interest
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Total Paid
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Amortization Schedule
#
Payment Date
Payment
Principal
Interest
Balance