Loan Calculator: What Will Your Monthly Instalment Be?

Before taking any loan, you need to know exactly what you are committing to. Our free loan calculator shows monthly instalment, total interest cost, and how different terms affect what you pay.

How to use the calculator

1. Enter the loan amount you need to borrow
2. Enter the annual interest rate
3. Enter the loan term in months or years
4. Click Calculate

Comparing loan terms

On a R50,000 personal loan at 18% annual interest:

• 12 months: R4,595 per month, R5,140 total interest, R55,140 total cost
• 24 months: R2,500 per month, R9,920 total interest, R59,920 total cost
• 36 months: R1,808 per month, R15,088 total interest, R65,088 total cost
• 60 months: R1,270 per month, R26,200 total interest, R76,200 total cost

A shorter term means higher monthly payments but dramatically less interest paid.

Interest rates by loan type in South Africa

• Home loan or bond: prime rate plus 0-2% (currently around 11-13%)
• Vehicle finance: 11-16% annually
• Personal loan: 15-29% annually
• Credit card: 20-22% annually (avoid carrying balances)
• Store credit or furniture: 21-24% (very expensive)

Red flags to watch

• Initiation fees: one-time fee to set up the loan
• Monthly admin fees: add to effective cost significantly over time
• Early settlement penalties: some lenders charge for paying early
• Credit life insurance: often added automatically, can be significant

In South Africa, the National Credit Act requires lenders to disclose the Total Cost of Credit. Always ask for this figure.

Tips for reducing what you pay

1. Shop around for the best rate. Even 1-2% less makes a meaningful difference.
2. Take the shortest term you can afford.
3. Make extra payments when possible.
4. Avoid revolving credit for large purchases at 20%+ interest.

Frequently asked questions

What is a good interest rate for a personal loan in South Africa? The NCA caps rates at repo plus 21%, currently around 29%. Reputable bank rates range from 15-25% depending on credit score.

How does my credit score affect my rate? The difference between excellent and poor credit can mean 5-10% difference in interest rate on a personal loan.

Can I pay off a loan early? Yes. In South Africa the National Credit Act limits early settlement penalties. Paying early almost always saves money.

What is the difference between APR and interest rate? Interest rate is the borrowing cost. APR includes all fees giving a truer picture of total cost. Always compare APR.

How much can I afford to borrow? A common guideline: total debt repayments should not exceed 36% of gross monthly income.