One of the most important concepts I introduce to clients who are new to investing is the time value of money — the idea that a dollar today is worth more than a dollar in the future, because today’s dollar can be invested and grow. Understanding this principle is the foundation of smart investing and long-term financial planning.
Here’s how I explain it — and what it means for your investment decisions.
Present Value vs. Future Value: What’s the Difference?
Future value is what a sum of money invested today will grow to over time, given a rate of return. Present value works in reverse: it tells you what a future sum of money is worth in today’s dollars, accounting for the rate of return you could earn in the meantime. Both concepts help answer the same essential question: is this investment worth it?
Why This Matters Before You Invest
Before I encourage any client to invest, I walk through a few foundational principles:
- Get debt-free first: High-interest debt — especially credit cards — is a guaranteed negative return. I generally recommend eliminating high-interest debt before directing money to investments, because no investment reliably outperforms a 20% interest rate working against you.
- Set clear investment objectives: Know what you’re investing for, what timeline you’re working with, and how you’ll evaluate progress. Investing without a goal is just guessing.
- Understand what you own: I tell clients never to invest in something they don’t understand. If you can’t explain why you own it, you shouldn’t own it.
The Power of Diversification
One of the most reliable ways to manage investment risk is diversification — spreading your money across multiple asset classes, sectors, and geographies so that no single holding can significantly damage your overall portfolio. I typically recommend a mix of growth, growth-and-income, and international funds, adjusted based on each client’s time horizon and risk tolerance.
Think Long Term
Markets go up and down — sometimes dramatically. What I’ve seen over more than 25 years of working with clients is that investors who stay the course through market downturns almost always come out ahead of those who panic and sell at the bottom. Time in the market, not timing the market, is what builds real wealth.
Take Advantage of Tax-Advantaged Accounts
Before investing in taxable accounts, I encourage clients to maximize contributions to tax-advantaged vehicles: 401(k) or 403(b) plans (especially to capture any employer match), Roth IRAs, and HSAs if eligible. These accounts shelter your growth from taxes and dramatically improve your long-term outcomes.
See What Your Investment Could Be Worth
Use the calculator below to see how a lump sum or regular contributions could grow over time at different rates of return.