Free Tool No Sign-up Data Stays in Your Browser

Build your budget, block by block

Pick your expenses from 60+ Australian categories, set payment frequencies, and export a clean budget template — as CSV for spreadsheets or JSON to pick up where you left off.

or start fresh below

Browse & Add

Select a category, tap items to add

Custom item

Your Budget

No items yet — add some from the left

Your budget starts here

Browse the categories and tap any item to add it. You can edit amounts and frequencies inline.

Budget Summary

Monthly Total

$0

Annual Total

$0

Split

Monthly take-home (optional)

$ /mo

By category

Add items to see your breakdown

View as

Export / Save

Import JSON anytime to continue editing

Frequently Asked Questions

How do I start building my budget? +

Select a category from the left panel — Housing, Transport, Food & Drink, and so on — then tap any item to add it. Each item lands in the centre column where you can edit the dollar amount and payment frequency directly. Use the custom item form at the bottom of the picker to add anything not covered by the 60+ presets.

How are monthly and annual totals calculated? +

Every item is converted to a monthly equivalent based on its frequency: weekly amounts are multiplied by 52 then divided by 12 (≈ 4.33×), fortnightly by 26 ÷ 12, quarterly ÷ 3, and annual ÷ 12. All monthly equivalents are summed for the household total, then multiplied by 12 for the annual figure. The "View as" toggle in the summary switches the displayed numbers between monthly, annual, and weekly.

What is the difference between CSV and JSON export? +

CSV exports a flat spreadsheet — one row per item with columns for category, name, amount, frequency, monthly cost, and annual cost — that opens directly in Excel or Google Sheets. JSON saves the complete budget state so you can import it back into the tool later and pick up exactly where you left off. Use CSV for sharing or further analysis; use JSON to save and resume editing.

How does the couple split work? +

Toggle "Couple" in the Budget Summary panel. The tool divides the household total by two and shows an "each" figure beneath the main totals — if the household spends $6,000/mo, the couple view shows $3,000 each. This assumes all expenses are split equally and is a display layer only — no item amounts change. Switch the income field to your combined household income for the most useful comparison.

Does the tool save my data between sessions? +

No. Everything runs in your browser — there is no account, no server, and nothing is stored when you close or refresh the tab. To save your work, tap "Save as JSON" before leaving and keep the file somewhere handy. Import it anytime using the "Import saved budget" button in the page header to resume exactly where you left off.

What is a good budget split across categories? +

A common framework is the 50/30/20 rule: roughly 50% of take-home on needs (housing, utilities, transport, groceries, health), 30% on wants (dining, entertainment, hobbies), and 20% on savings and debt repayment. These are rough benchmarks — your split will depend on income, family size, location, and goals. In Sydney and Melbourne, housing alone often exceeds 35–40% of take-home for renters, which means the remaining categories must flex accordingly.

How much should housing cost as a share of income? +

The widely cited guideline is to keep total housing costs — rent or mortgage plus utilities — at or below 30% of gross income. Households above that threshold are considered to be in housing stress. In Australian capital cities, median rents and repayments regularly push households above 30%. Enter your take-home in the income field and the summary panel will show you exactly what percentage your total spend represents.

Are the preset amounts accurate? +

The presets are typical Australian averages — a starting point, not a prescription. Rent varies enormously by city and suburb, insurance premiums depend on age and cover, and grocery bills scale with household size. Update every amount to match what you actually pay. The presets are there so you are not starting from blank fields; they are not a statement of what you should be spending.

Estimates only — not financial advice. The Budget Builder is provided for general informational and educational purposes. Preset amounts are illustrative averages. Your actual costs will vary. This tool does not account for tax, government benefits, or individual financial circumstances. Learn more →

Affordly Insights

How to Create a Budget That Actually Works

Why most budgets fail, the 50/30/20 rule in the Australian context, and a step-by-step guide to building one from scratch.

Read the guide →