If you have a lot of money sitting in a checking or savings account, you're interested in saving for later in life (like retirement), and you have many years until you expect to need the money, your "right amount" is going to be very different from that of someone who's maxed out their credit cards and is hoping to put a down payment on a home.
Here are some general guidelines on how to choose the right initial investment amount:
- Pay off debt first: Investing is a long-term activity. Your investments will probably start generating money slowly, but after years will earn more, thanks to the magic of compound interest, dividends, and growth. This means that high-interest debt like credit card debt is likely to cost you more money than you make through investing. Pay down any debt with an interest rate of greater than, say, 7% before investing your money.
- Make a budget: To make sure you're able to set aside money for investing, write out a monthly budget that outlines your basic expenses (like rent or mortgage, utilities, transportation costs, groceries, and any loan payments) and discretionary spending (like dining out, entertainment, and unnecessary shopping trips).
- Don't forget about emergencies: While putting money into a retirement plan or account can offer tax advantages, it makes those funds much harder to recover in a hurry. Make sure you have the means to pay for an emergency by setting aside money in a savings account. A general rule of thumb is to have about six months of your average spending stashed away in savings.
- Other savings goals: There are some other items you may need to budget for. It could be a vacation fund, a down payment on a car or home, a home remodel, or something else. Some people like to have a dedicated savings account for these items, separate from their emergency savings account. Either way, make sure you set aside money for these other items so that your long-term investments don't need to be tapped.
Once you've done those basic calculations and established some financial goals, you should be able to find an amount you can commit to investing every month. Yes, every single month! Saving one lump sum of money and forgetting about it might pay off in the long run, but depositing a little bit more cash every month will help you reach your financial goals far more quickly.
Maybe that amount is $2,000 a month. Maybe it's $10 a month. The overall amount doesn't matter, as long as it's a sustainable amount you can commit to every single month.