Simple Interest Calculator
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Simple Interest Result
⚠️ This calculator uses the standard SI formula: SI = (P × R × T) / 100. For legal interest calculations (court cases, cheque bounce etc.), consult our advocates for applicable rate and period.
Simple Interest Formula & Examples
Formula: SI = (P × R × T) / 100
| Principal (P) | Rate (R%) | Time (T) | SI | Total (P+SI) |
|---|---|---|---|---|
| Rs. 50,000 | 10% | 2 years | Rs. 10,000 | Rs. 60,000 |
| Rs. 1,00,000 | 12% | 3 years | Rs. 36,000 | Rs. 1,36,000 |
| Rs. 2,00,000 | 8% | 5 years | Rs. 80,000 | Rs. 2,80,000 |
| Rs. 5,00,000 | 15% | 1 year | Rs. 75,000 | Rs. 5,75,000 |
Legal Use of Simple Interest in India
Simple interest has specific legal applications in Indian law:
- Court-ordered interest: Courts typically award simple interest at 6–12% per annum on decree amounts under the Code of Civil Procedure, 1908.
- Cheque Bounce cases: Courts may award SI on the cheque amount from the date of dishonour.
- Security deposits: Landlords may be required to pay SI on refunded deposits under certain state rent control acts.
- Income Tax refunds: The IT Department pays SI at 0.5% per month (6% p.a.) on delayed refunds under Section 244A.
- Consumer complaints: Consumer forums frequently award SI at 9–12% on amounts paid for deficient services.
Frequently Asked Questions
Under Section 34 of the Code of Civil Procedure, 1908, courts can award interest on the principal sum at a rate not exceeding 6% per annum for pre-suit interest and up to the court's discretion for post-decree interest. However, if the parties have agreed to a higher rate in a contract, courts may award that rate. High Courts sometimes award 9–12% based on prevailing market rates and the facts of the case.
Home loans in India use compound interest (reducing balance method), not simple interest. The EMI structure means each payment reduces the principal, and interest is calculated on the remaining balance each month — effectively compounding monthly. Simple interest is primarily used for short-term personal loans, legal awards, and some government scheme calculations.
Need Legal Advice on Interest Calculations?
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