📈 Interest Rate Impact Calculator
See how interest rate changes affect your monthly payments and total loan cost. Essential for South African borrowers.
Current prime: ~11.75%
± percentage points
Impact Analysis
Hover for detailed values
Monthly Payment Change
+R 0
0% increase
Total Interest Change
+R 0
0% more interest
Affordability Impact
Minimal
Based on 30% income rule
Rate Comparison Table
Detailed breakdown across interest rates
Key Insights
💡 Current Analysis:
Based on your inputs, here's how rate changes affect your loan...
Based on your inputs, here's how rate changes affect your loan...
🇿🇦 South African Context
SARB Rate Decisions:
• Prime rate typically follows repo rate changes by the South African Reserve Bank
• Current prime: ~11.75% (varies by bank)
• Typical rate hikes: 0.25% to 0.75% per decision
Impact on Vehicle Finance:
• 1% rate increase = ~6-8% higher monthly payments on 5-year loan
• Consider fixed-rate options during rising rate environments
• Factor in potential future hikes when budgeting
Affordability Guidelines:
• Keep vehicle payments below 15-20% of net income
• Total debt repayments should not exceed 35-40% of income
• Prime rate typically follows repo rate changes by the South African Reserve Bank
• Current prime: ~11.75% (varies by bank)
• Typical rate hikes: 0.25% to 0.75% per decision
Impact on Vehicle Finance:
• 1% rate increase = ~6-8% higher monthly payments on 5-year loan
• Consider fixed-rate options during rising rate environments
• Factor in potential future hikes when budgeting
Affordability Guidelines:
• Keep vehicle payments below 15-20% of net income
• Total debt repayments should not exceed 35-40% of income
Tip: Use the comparison slider to see how different rate scenarios affect your budget. Consider stress-testing with +2-3% above current rates.