The 50/30/20 Budget Explained, With a Worked Example
The 50/30/20 budget is one of the simplest ways to organize your money. It splits your after-tax income into three groups, with 50 percent for needs, 30 percent for wants and 20 percent for savings and debt repayment. The approach was popularized by Elizabeth Warren and Amelia Warren Tyagi in their 2005 book All Your Worth, and it remains popular because it gives you a clear structure without asking you to track every purchase in detail.
The three categories
Needs (50 percent) are the costs you must pay to live and work. These include housing, utilities, groceries, insurance, basic transportation, childcare and the minimum payments on your debts.
Wants (30 percent) are the things that make life enjoyable but that you could cut if you had to. Eating out, entertainment, hobbies, travel, streaming services, shopping beyond the basics and upgrades such as a nicer phone plan all fall here.
Savings and debt repayment (20 percent) covers building an emergency fund, contributing to retirement accounts, investing and paying more than the minimum on debts. Extra debt payments belong here because they improve your financial position in the same way that saving does.
A worked example
Say your take-home pay, after taxes and any payroll deductions, is $4,000 a month. The budget would look like this:
- Needs: $2,000 for rent, utilities, groceries, insurance, transportation and minimum debt payments.
- Wants: $1,200 for dining out, entertainment, subscriptions, clothes and travel.
- Savings and debt repayment: $800 for your emergency fund, retirement savings or extra payments on a credit card.
If your employer takes retirement contributions out of your paycheck before it reaches you, you can add those back to your take-home pay and count them toward the 20 percent, which gives you a more accurate picture of how much you are really saving.
How to set it up
- Find your monthly take-home pay. Use what actually lands in your bank account, and average a few months if your income varies.
- Sort last month’s spending. Go through your bank and card statements and label each expense as a need, a want or savings.
- Compare your split with 50/30/20. Most people find that their needs or wants are higher than the targets, which shows where to make changes.
- Automate the 20 percent. Schedule transfers to savings and extra debt payments for payday, so the savings portion happens before spending begins.
When the numbers do not fit
In high-cost cities, housing alone can take more than half of take-home pay, which makes the 50 percent target unrealistic. In that case, treat the percentages as a starting point and adjust them, for example to 60/20/20 or 60/30/10, while you work on lowering your fixed costs or raising your income. The important part is that some share goes to savings every month, even if it starts smaller than 20 percent.
If your needs are well below 50 percent, consider moving the difference into savings rather than letting it drift into wants. People with high-interest credit card debt may also choose to shift money from wants into debt repayment for a period, because paying off a card with a high interest rate is one of the best returns available.
Using side income with this budget
Extra income from a side hustle can either be folded into your monthly budget or given its own rule. Many people send most or all of their side income straight to the savings and debt category, which speeds up their goals without changing the lifestyle their main paycheck supports.