Single Income Budget Planner

Monthly Budget Planner for Single Income Household

One paycheck has to cover everything. This free planner helps you give every dollar a job before the month starts — bills, food, childcare, savings — and see what is left over. No account, no signup, nothing to install. Your numbers are saved only in this browser.

How this planner works

Start with your monthly take-home pay — the amount that actually lands in your account after tax. If your pay changes from month to month, use the irregular-pay section: enter the average of your last three months, or a base amount plus an average variable amount. Then list your planned spending by category, and fill in the actual amounts as the month goes on. The planner shows your Left to assign number at the bottom. When it reaches $0, every dollar has a job. That is the whole method: plan first, spend second, check the gap.

Your plan is stored one month at a time. Pick a month at the top of the tool to switch between months, or copy this month’s plan into next month and adjust it. Use the backup button to download your data as a JSON file, and the CSV button if you want to open it in a spreadsheet.

What counts as a need, a want, and savings

The split guide on this page uses the 50/30/20 rule of thumb: about 50% of take-home pay for needs, 30% for wants, 20% for savings. Needs are the things you must pay to keep the household running — housing, utilities, food, transport, childcare, insurance, and minimum debt payments. Wants are the flexible parts — eating out, streaming, fun money. Savings includes your emergency fund and any extra debt payments beyond the minimum.

On one income, the 50% needs share is often hard to hit, especially with rent and childcare. That is normal, and it does not mean the plan has failed. The planner shows your split next to the guide as a comparison, not a grade. If your needs run at 60%, the 50/30/20 guide for single income households explains a 60/20/20 split and an austerity split for lean months.

Budgeting with irregular pay

When one paycheck is also an unpredictable paycheck, budgeting from a single good month will overstate what you can spend. Budget from the average instead: add up the last three months of take-home pay and divide by three. If you have a steady base plus variable top-ups — tips, overtime, freelance work — enter the base and the average variable amount separately. Plan your fixed bills from the base, and let the variable part fund savings and sinking funds. The full method is on the irregular income budgeting page.

Sinking funds: the habit that stops surprise bills

Some costs are not monthly, but they are certain: car insurance once a year, school costs each fall, a holiday, car repairs. A sinking fund turns each one into a small monthly set-aside. A $1,200 annual car insurance bill becomes $100 a month. The planner’s sinking-fund section does the division for you and adds the set-aside to your planned spending, so the money is already assigned when the bill arrives.

How much emergency fund is enough?

Enter your emergency savings balance and the planner shows how many months of essential spending it covers. Essentials here means housing, utilities, food, transport, childcare, debt minimums, and insurance — the spending you cannot pause. Many guides suggest three to six months of essentials; on a single income, building toward that takes time, and one month of cover is already a real buffer. Start with a small automatic transfer each payday and let it grow.

Budgeting on one income with kids

Childcare is often the largest line after housing, and it does not behave like other bills — it changes with school terms, holidays, and ages. Give childcare its own category and its own due day, and add a sinking fund for the lumpy costs: school supplies, clothes, activities, birthday season. The single income budget with kids page walks through a worked example and includes the same planner pre-filled with a single-parent example.

Print a blank worksheet

If you prefer paper, or you want to sit down with a partner and fill it in together, use the printable budget worksheet. It prints blank, and the same page can print your completed budget from the planner.

Frequently asked questions

Is this budget planner really free?

Yes. There is no account, no trial, and no paywall. The planner runs entirely in your browser, and the printable worksheet is free too.

Do I need an account or an email address?

No. Your plan is saved in your browser’s local storage on your own device. There is nothing to sign up for and no password to remember.

Does my budget data leave my browser?

No. The numbers you enter are stored locally and are never sent anywhere, because there is no server behind this tool. See the privacy page for the full statement.

What is a sinking fund?

A monthly set-aside for a cost that comes once or twice a year — car insurance, school costs, holidays. You divide the annual cost by 12 and treat that slice as a monthly bill, so the money is there when the bill arrives.

How do I budget when my pay changes every month?

Budget from the average of your last three months, not from your best month. If you have a steady base plus variable earnings, enter them separately in the irregular-pay section and plan fixed bills from the base only.

What is the 50/30/20 rule?

A rule of thumb that splits take-home pay into about 50% needs, 30% wants, and 20% savings. On a single income it is a comparison point, not a pass/fail test — the 50/30/20 guide covers the 60/20/20 and austerity versions too.

Can I print my budget?

Yes. Use the print button in the tool to print your completed budget, or open the printable worksheet for a blank version.

What if my income only covers the basics?

Then the plan’s job is to make the shortfall visible: list needs first, cut wants to near zero, and put every spare dollar toward the smallest gap — usually a late fee, a minimum payment, or one month of buffer. The planner’s Left to assign number shows exactly how far the month stretches. If debt feels unmanageable, consider a nonprofit credit counselor.

More guides

Your budget numbers stay in this browser. This is a planning tool, not financial advice. If debt feels unmanageable, consider a nonprofit credit counselor.