4. The Fundamentals of Investing

• Use the 50/30/20 Rule
The 50/30/20 rule suggests dividing your after-tax income into three parts: 50% for essential needs, 30% for discretionary wants, and 20% for savings or investments. This popular budgeting framework—popularized by Senator Elizabeth Warren—helps you balance current enjoyment with future financial goals (investopedia.com). To implement it, track your income and spending, categorize expenses, and automate transfers to your savings or investment accounts. It’s flexible—if rent consumes more than 50%, you can adjust the other categories accordingly (johnhancock.com, nerdwallet.com).
• Track Every Expense
Recording every expense, even small ones, sharpens your awareness of where money goes. Tracking can be done manually, with budgeting apps, or basic spreadsheets. You may discover unnecessary monthly charges or “subscription creep.” Once you spot these leaks, you can reallocate funds to higher-value uses like investments or debt reduction. Tracking is the first step toward accountability and improvement.
• Set Spending Limits
After tracking, set monthly spending caps based on your goals. For instance, limit groceries to $500 or dining out to $150. Enforcing these limits prevents overspending and redirects surplus funds to savings or investments. Clear, pre-defined categories make budgeting straightforward and manageable—avoid rigid austerity but maintain discipline to ensure progress toward financial targets.
• Adjust for Inflation
Inflation reduces the real value of your money over time, so it’s important to invest in assets that typically outpace inflation—like equities, real estate, or inflation-protected bonds (e.g., TIPS) (investopedia.com). Review your portfolio at least once a year and rebalance to maintain your desired asset mix. Consider including REITs or commodity exposure for additional diversification and inflation protection (hartfordfunds.com).
By following these four fundamental steps—budgeting using 50/30/20, tracking every expense, setting spending limits, and adjusting for inflation-proof investments—you build a strong foundation. This approach balances everyday living with disciplined saving and strategic investing, giving you greater financial confidence and resilience.
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