When most people think about buying a car, a home, or even taking out a personal loan, they focus on one thing: the price. They negotiate the sticker price, celebrate saving a few hundred or even a few thousand dollars, and walk away feeling like they won the deal.
But here’s the truth most lenders, dealerships, and realtors won’t explain clearly:
The interest rate—not the price—is what determines how much a loan really costs you.
In this episode of The Ridgeway Report, I walk through real numbers using a financial calculator to show exactly how interest rates quietly erode wealth over time—and how understanding these calculations can save you tens or even hundreds of thousands of dollars.
Interest Rates Are King
If you pay cash, the math is simple. You pay the price, and you’re done.
But when you borrow money, interest rates become the deciding factor in how expensive that purchase truly is. Whether it’s a mortgage, car loan, or personal loan, the interest you pay over time can dramatically outweigh the original purchase price.
Many people underestimate this because percentages feel small. A difference between 5.5% and 6% doesn’t sound significant—until you run the numbers.
A Real-World Loan Example
Let’s look at a realistic scenario.
Imagine purchasing a $170,000 property—perhaps an investment property or a future retirement home. You decide on a 15-year loan at a 5.5% interest rate. On the surface, that sounds reasonable.
But once we run the math correctly, the reality becomes clear.
A 15-year loan doesn’t mean 15 payments. It means 180 monthly payments. And the 5.5% interest rate must be divided by 12 to reflect monthly compounding.
After running the numbers, your monthly payment comes out to roughly $1,389.
Now here’s where most people stop.
But that’s not the full story.
The True Cost of Borrowing
When you multiply that monthly payment by all 180 payments, you don’t pay $170,000.
You pay over $250,000.
That means more than $80,000 of your money goes to interest alone.
This is why focusing only on price—or negotiating a few hundred dollars—misses the bigger picture. Interest quietly becomes one of the largest expenses in your financial life.
Why Comparing Loans Matters
When comparing two properties or two loan offers, the cheaper option isn’t always the one with the lower sticker price.
A home listed at a higher price with a lower interest rate can cost less over time than a cheaper home with a higher rate. The same applies to cars, personal loans, and even credit cards.
This is why shopping interest rates—and understanding how they compound—is one of the most powerful wealth-preservation strategies available.
Down Payments, PMI, and Hidden Costs
Your down payment also plays a major role.
Putting down 20% instead of 10% may:
- Lower your interest rate
- Eliminate PMI (private mortgage insurance)
- Reduce the total interest paid over the life of the loan
Small adjustments upfront can lead to massive long-term savings.
The Real Danger of High-Interest Debt
High-interest car loans and personal loans are especially dangerous. Rates of 16%, 18%, or even 20% can cause you to pay two to four times the value of the item you purchased.
This isn’t how wealth is built—it’s how wealth is quietly destroyed.
Why Financial Planning Is About Prevention
As a financial advisor, my job isn’t just to grow money—it’s to protect it.
Saving 8–10% on a large purchase can be more impactful than trying to earn that same amount through risky investments. This is where planning outperforms guessing.
Interest rates reward preparation and punish ignorance.
Final Thoughts
Most people never see these numbers because lenders don’t show them—and they don’t have to. But once you understand how loans really work, you gain control.
And control is the foundation of financial freedom.
If you’re planning to buy a home, car, or take on any significant debt, having a strategy can save you far more than you realize.
About the Author
A.B. Ridgeway, CPWA® is the founder of A.B. Ridgeway Wealth Management and host of The Ridgeway Report. He specializes in helping retirees and pre-retirees create reliable income, invest with clarity, and make confident financial decisions.
Join our Newsletter and receive our free 19-page e-book “4 Financial Principles Every Christian Should Know”
Click Here To Get Your Free Gift
About The Ridgeway Report:
As Christians, we were taught to be good stewards over our tithing and giving to the less fortunate. But when it came to our personal finances and investing we were left clueless on what the Bible says. What does the Bible say about managing debt, leaving a legacy, investing, and planning for your retirement? Mr. Christian Finance answers these and many other questions because we want to teach you how to become rich and righteous!
Meet A.B. Ridgeway:
A.B. Ridgeway, MBA, CPWA®️ (info@abrwealthmanagement.com) is the owner and Christian Financial Advisor with A.B. Ridgeway Wealth Management. With a decade in the finance industry, his goal is to give believers clarity around the most confusing topic in the Bible, money, and tithing. A.B. Ridgeway helps tithing Christians become cheerful givers but unlocking their money-making potential, so they can prosper and be the great stewards of the wealth God has entrusted them with.
*Disclaimer: This communication is not intended as an offer or solicitation to buy, hold or sell any financial instrument or investment advisory services. Any information provided has been obtained from sources considered reliable, but we do not guarantee the accuracy or the completeness of any description of securities, markets or developments mentioned. This is strictly for information purposes. We recommend you speak with a professional financial advisor.
*Some elements in this blog was created, restructured, edited or summarized by AI and may have altered from the original content. Warning: There may be errors that were creating during this transition that were not in the original content. Please double check all information.
