How to Make a Budget: 50/30/20, Zero-Based and a Free Spreadsheet Template

A budget isn't a list of things you're not allowed to buy. It's a plan that tells your money where to go before it leaves. People without a budget don't spend less; they just find out later. In this lesson you'll learn four ways to build one, how to set it up in a spreadsheet, a real before-and-after case with numbers, and a monthly routine that keeps it alive.

1. Sort your expenses
2. Choose a method
3. Build the spreadsheet
4. Track without pain
5. Review monthly

Step 1: Know your real monthly income

Budget with take-home pay, the money that reaches your checking account. If you earn $1,500 every two weeks, that's $39,000 a year ($3,250 a month on average), but most months you'll only get two paychecks, or $3,000. Budget your regular bills on $3,000 and treat the two "third paycheck" months as a bonus for savings or debt. If your income changes a lot month to month, use your lowest typical month and read lesson 5.

Step 2: Sort your expenses into types

Before deciding how much to spend, figure out what kind of expense each one is. They're not managed the same way: some you renegotiate once a year, others you watch every week.

The fourth type that wrecks budgets: irregular expenses

Car insurance billed every six months, holiday gifts, annual memberships, car registration. They don't show up every month, but they show up every year, so they're not emergencies. Add them up, divide by 12 and move that amount into a separate savings account each month (sometimes called a sinking fund):

With $207.50 set aside each month, December and the insurance renewal stop "ruining" your budget: the money is already waiting when the bill arrives.

Step 3: Choose a budgeting method

The 50/30/20 rule (the easiest start)

Popularized by Senator Elizabeth Warren and Amelia Warren Tyagi, it splits take-home pay into three buckets: needs, wants, and savings plus extra debt payments. Here's what it looks like on $3,600 a month:

• Needs (50%) $1,800Rent, utilities, groceries, transportation, insurance, minimum debt payments.
• Wants (30%) $1,080Restaurants, streaming, shopping, hobbies, trips.
• Savings and extra debt (20%) $720Emergency fund, Roth IRA, paying down credit cards faster.

The dollar amounts change with your income, but the proportions don't:

In high-cost cities like San Francisco, Boston or New York, rent alone can top 40% of take-home pay. Then adjust, for example to 60/25/15, but protect the savings slice, even if you start at 5% or 10% and raise it with every pay increase.

A high-cost-city version: 60/25/15. Savings shrink, but they never disappear.

Zero-based budgeting (the most precise)

You assign every dollar to a category until income − spending − saving = $0. That doesn't mean spending everything; savings is a category too. Same $3,600:

It takes more effort, but it's ideal if money is tight or you're paying off debt, because it forces a decision for every dollar.

Envelopes and pay-yourself-first

With the envelope method, each variable category gets a fixed amount; when the "envelope" is empty, that spending stops until next month. People once used cash; today many online banks let you create savings "buckets" that do the same job. With pay-yourself-first, you automate savings on payday and spend the rest freely, as long as bills get paid. It's the lowest-effort method and works if you don't overspend.

Step 4: Build your spreadsheet

You don't need a paid app. A sheet with this structure works perfectly:

Keep a second tab called Transactions (Date, Description, Category, Amount). The "Actual" column then fills itself:

=SUMIFS(Transactions!D:D, Transactions!C:C, A2)

And to see what share of your income goes to each type (with take-home pay in cell H1):

=SUMIF(B2:B20, "Need", D2:D20) / $H$1

Format it as a percentage and compare it with your target. Add conditional formatting so negative differences turn red. For a deeper walkthrough of these steps, read our guide on how to make a budget.

Step 5: Track without pain and review monthly

• Minimum effort: once a week, export transactions from your bank and card and categorize them (10–15 minutes).
• Automatic: most bank apps and budgeting apps categorize for you; just fix the mistakes.
• Keep it short: 8 to 15 categories. With 40, you'll quit within a month.
• Use one card for most variable spending (and pay it in full). One statement is far easier to track.

1. PaydayAutomate savings firstTransfers to your emergency fund and IRA leave the day your paycheck arrives.
2. Weekly · 10 minCategorize transactionsFix anything the app filed in the wrong place.
3. Mid-monthCheck variable categoriesIf groceries or dining out are already at 70%, slow down now, not on the 31st.
4. Month-end · 20 minReview and adjustCompare planned vs. actual and set next month's numbers.

Real case: Tyler fixes his budget in Denver

The math checks out: needs dropped from $2,970 to $2,700 (−$270), wants from $1,350 to $1,125 (−$225), and savings rose from $180 to $675 (+$495). Income stayed at $4,500.

Summary

• A budget assigns your money a destination before you spend it.
• Sort expenses into fixed, variable, discretionary and irregular; divide irregular ones by 12.
• Start with 50/30/20; switch to zero-based or envelopes when you need more control.
• Pay yourself first with automatic transfers on payday.
• Review monthly and adjust with real numbers: overspending is information, not failure.

Next lesson: Emergency Fund: How Much You Need and Where to Keep It. You'll size your fund for your situation, choose an FDIC- or NCUA-insured home for it and build it step by step.