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FeasiBiz

Australian tax rules built in

Know if your business idea works before you invest.

FeasiBiz turns your prices, costs, staff, premises, loans and tax settings into a month-by-month forecast. See your cash flow, the tax you'll pay, how much money you need to start, and whether the idea pays back, explained in plain English.

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  • Free plan available
  • No credit card to start
  • Every field explained

Neighbourhood café · 5-year analysis

Example
65/100

Viability score: Promising

Pays back after 3 yrs 4 mths, but needs about $141K of owner funding first.

Project NPV
$49.7K
at a 12% required return
IRR
21.9%
per year
Payback
3 yrs 4 mths
owner cash back
Peak funding
$141K
needed by month 8

Owner cash flow by year

Australia – NSW company (base rate entity 25%)Super, GST and payroll tax included
The café example you can open and change after signing up. Your results depend entirely on your own assumptions.

How it works

From idea to an honest answer in three steps

No spreadsheets to build and no formulas to check. You bring the assumptions; FeasiBiz does the maths.

  1. 1

    Describe your idea

    Add what you'll sell and for how much, your costs, staff, premises, equipment, loans and tax set-up. Every field explains what it means, with an example, and you can start from a worked café example.

  2. 2

    We run the numbers

    Our servers project every month of the plan: sales ramp-up, wages and super, rent, GST timing, loan repayments, depreciation and income tax by financial year. The same inputs always give the same results.

  3. 3

    Read the verdict and test changes

    Get NPV, IRR, payback, funding needs and a viability score with the reasons behind it. Then change prices, costs or campaigns, save scenarios and compare them side by side.

Features

Everything a feasibility study needs

Built for small businesses, founders and the advisers who help them.

  • Monthly cash-flow engine

    Every month from set-up to the final year: sales ramp-up, growth, seasonality and capacity limits, wages, overheads, customer and supplier payment terms, GST and tax payments.

  • Australian tax built in

    Company, sole trader, partnership or trust. GST, payroll tax by state, super, depreciation including the instant asset write-off, tax losses and capital gains.

  • Custom tax systems

    Planning outside Australia? Describe your own system: flat or progressive income tax, sales tax, payroll tax, social security and the financial-year start, in any of 25 currencies.

  • Marketing campaigns and discounts

    First-order offers, seasonal sales and repeating promotions with their spend and expected sales lift, plus each campaign's effect on profit and NPV.

  • Funding needs and loans

    See how much the owners must put in and when funding peaks. Model amortising or interest-only loans, fees, grants and a cash reserve.

  • Rent, own or buy premises

    Rent with increases, rent-free months and a bond, or buy with estimated stamp duty and land tax and a sale at the end of the plan.

  • Returns and a viability score

    NPV, IRR, MIRR, payback, discounted payback, ROI, debt cover and break-even, plus a rule-based score out of 100 that shows its reasons.

  • Sensitivity analysis

    Find the assumptions that matter most, such as price, volume, costs, wages or interest, and how far each can move before the idea stops paying off.

  • Scenario comparison

    Save a cautious, an expected and an optimistic version and compare up to four analyses side by side.

  • CSV and PDF exports

    Download the key figures and yearly statements as CSV and print a full report to PDF, with your company name on it on plans that include branding.

  • Optional AI summary

    An AI-written summary of your numbers with strengths, risks and next steps. You control when it runs, and the numbers themselves never come from AI.

  • Help next to every field

    Each analysis input has a short hint, a fuller explanation and an example, so you don't need a finance degree to fill it in.

Some features are part of paid plans. Compare plans.

Tax

Real tax rules, not one flat percentage

Tax changes whether an idea works. FeasiBiz applies Australian rules by financial year (July to June) for the business structure and state you choose, and shows how every year's tax was worked out.

Not in Australia, or need different rates? Override the statutory rates or describe a custom tax system for another country. These are advanced tax settings: the pricing page shows which plans include them.

  • Company tax at the base-rate-entity or standard rate, worked out each year from turnover
  • Sole traders, partners and trust beneficiaries: individual tax rates, Medicare levy, low income and small business tax offsets
  • GST registration test, prices with or without GST, credits on costs and equipment, and quarterly BAS timing
  • Payroll tax for each state and territory, superannuation guarantee and workers' compensation
  • Depreciation by prime cost or diminishing value, the instant asset write-off and the small business pool
  • Tax losses carried forward, capital gains on assets and property, stamp duty and land tax estimates
  • Tax rules are summarised for planning. They are not tax advice, so check important decisions with a registered tax agent.

Marketing campaigns

Plan your promotions and see what they really cost

Set the discount (a percentage or an amount), who gets it, when it runs, whether it repeats, the money you'll spend and the sales lift you expect. FeasiBiz shows the discounts given, the extra sales, the change in NPV and the return on each campaign.

The pricing page shows which plans include marketing campaigns.

  • Welcome offer

    20% off first orders from new customers for the first three months.

  • Summer special

    A$1 off every iced coffee each January, repeating every year.

  • Launch push

    A$3,000 of local advertising with an expected 15% lift in sales.

Security and privacy

Built to keep your plans confidential

Business plans are sensitive. Here is exactly how FeasiBiz handles them.

  • Your analyses stay private

    Data is stored in Supabase (Postgres) with row-level security, so each account can only read its own analyses.

  • Calculations happen on our servers

    Your browser only shows the results. Secret keys and third-party services are only ever used from the server.

  • Payments by Stripe

    Card details are entered on Stripe's secure checkout page and never touch our servers.

  • No tracking cookies

    We only use the cookies needed to keep you signed in. No advertising or analytics cookies.

  • Your data, your call

    Download everything as a file or delete your account and its data at any time from Account settings.

Read the details in our Privacy Policy.

FAQ

Questions people ask

Is FeasiBiz financial or tax advice?
No. FeasiBiz is a planning tool that calculates the consequences of the assumptions you enter. The results are estimates, and tax rules are summarised for planning purposes. Before you sign a lease, borrow money or invest, talk to an accountant, registered tax agent or financial adviser.
Which tax rules does it use?
For Australia: company tax (base rate entity or standard rate), individual rates with the Medicare levy and tax offsets for sole traders, partnerships and trusts, GST, payroll tax by state and territory, superannuation, workers' compensation, depreciation including the instant asset write-off and small business pool, tax losses, capital gains, stamp duty and land tax estimates. Each financial year shows how its tax was worked out.
Can I use it outside Australia?
Yes. Choose your currency and describe a custom tax system: flat or progressive income tax, sales tax with a registration threshold, payroll tax, employer social security contributions and when your financial year starts. Custom tax systems are part of the advanced tax settings; the pricing page shows which plans include them.
What does the AI summary see, and does it cost extra?
The AI summary is optional and only runs when you click the button. It sends Google's Gemini service a compact summary of your analysis: key figures such as prices, costs, yearly results, NPV and payback, the warnings and insights from our calculations, and the names you gave products, campaigns and other items such as assets and loans. If you use a custom tax system, its name is sent too. It never sends your name, email address, company name or the analysis title, so please keep personal information out of item names. There is no extra charge: your plan sets how many summaries you can create each month. All the figures come from our calculation engine, not from AI.
Do I need a credit card to start?
No. Create a free account with just your name, email address and a password. You only enter payment details, on Stripe's secure checkout page, if you choose a paid plan.
Can I cancel a paid plan?
Yes, at any time from Plan & billing in your account. You keep the paid features until the end of the period you've paid for, and you won't be charged again. See the pricing page for details.
Who can see my analyses?
Only you can open them in the app. Analyses are stored in our database with access rules that limit each account to its own data. Our admin panel shows the names and dates of your analyses, but not what is inside them, and our team only looks at the contents of an analysis if you ask us to help with it, or if the law requires it. See the Privacy Policy.

Test your idea before you put money in

Start with the worked café example or a blank analysis. It's free to try, and you can upgrade when you need more.

Create a free accountSee pricing