Debt & Loans
Credit Cards: Maximizing Reward Points Without Falling into the 42% APR Trap
Verified Indian financial mathematics, statutory regulations, and step-by-step actionable breakdowns.
myfinedu Research Desk 2026-03-10 5 min read
Executive Summary & Key Takeaways
- •Never pay the 'Minimum Amount Due' — it triggers retrospective interest on all purchases from day 1.
- •Credit card revolving interest runs at 3.5% to 3.75% per month (42% - 45% APR).
- •Always activate auto-debit for 'Total Due Amount' linked to your salary account.
The Psychology and Mathematics of Credit Cards
Credit cards are exceptional financial tools when used with strict discipline: they offer up to 45-50 days of interest-free credit, airline miles, cashback, and fraud protection. However, failing to pay the statement in full triggers astronomical interest rates exceeding 40% per annum.
Frequently Asked Questions
Paying the minimum due avoids late fee penalties, but interest still accrues at 40%+ on the unpaid balance, and your credit utilization spikes, which harms your CIBIL score.
Test the Mathematics Yourself
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