This is general information only, not tax, financial or legal advice. Rules differ by country and change over time, so confirm your own situation with a registered tax agent, BAS agent or accountant.

Money stress in a one-person business is usually a systems problem, not a character flaw. A few simple habits keep you calm, compliant and ready for slow months: separate your accounts, invoice promptly, set tax money aside automatically, and keep a cash buffer.

The short version: open a separate business account, invoice the moment work is delivered, move a fixed percentage of every payment into a tax account, build a buffer of several months of expenses, and keep your records tidy.

Separate business and personal money

Open a dedicated business account and use it for all business income and expenses. It makes bookkeeping easier, protects you if you are ever asked to show your records, and shows you what the business really earns. Avoid paying business costs from your personal account, and avoid mixing the two.

Invoice promptly and follow up

  • Invoice immediately. Send the invoice when the work is delivered or a milestone is reached, not at the end of the month.
  • State clear terms. Put the due date, the amount, your business details and the accepted payment methods on every invoice.
  • Ask for a deposit on larger projects. See our client onboarding system.
  • Set reminders. Send a polite reminder before the due date and another after it. Many invoicing tools do this automatically, so you are not chasing people by hand.
  • Make paying easy. Offer a bank transfer and a card option.

Our guide to pricing your services explains how to set rates that leave enough room for your own costs.

Set money aside automatically

When a payment arrives, split it straight away:

  • Tax pot. Move a fixed percentage into a separate savings account. Ask your accountant which percentage suits you, because it depends on your income and circumstances.
  • GST pot, if you charge GST. GST you collect belongs to the tax office, not to you. Keep it separate from your own income.
  • Cash buffer. Build savings covering several months of business expenses, so a slow month is an inconvenience, not a crisis.
  • Owner pay. Pay yourself a regular amount from the business account, as you would a salary, rather than taking whatever is left.

Know the basics of GST and registration

In Australia, an ABN (Australian Business Number) identifies your business. You must register for GST when your GST turnover reaches $75,000 or more, measured on your turnover for the current month and the previous 11 months, or on your projected turnover for the current month and next 11 months. GST turnover is based on your income before costs, not your profit. You can register earlier if it suits you. See the ATO's page on registering for GST, and talk to an accountant about what applies to you.

Track your numbers every month

A simple monthly review takes less than an hour:

  1. Record income and expenses in a spreadsheet or bookkeeping tool.
  2. Check that invoices are paid and chase the late ones.
  3. Move money into your tax pot and buffer.
  4. Look at your biggest costs, and cancel subscriptions you no longer use.
  5. Check your cash for the next three months.

Keep records

Keep invoices, receipts, bank statements and contracts in an organised folder, with a backup copy in a second place. Australian tax record-keeping rules generally require you to keep business records for five years, so check the current rules with the ATO or your accountant. Our website speed and security checklist explains the 3-2-1 backup rule, which also works for your financial files.

Plan for slow months and big costs

  • Smooth your income by moving clients to monthly retainers where you can.
  • Plan for annual costs such as insurance, software and training, by saving a little each month.
  • Keep a list of quick income options you can use in a quiet month, such as a small offer to past clients.
  • Check your insurance. Think about professional indemnity or public liability cover if you give advice or work on clients' sites. Ask a broker what suits your work.

Know when to get help

A bookkeeper or tax agent often pays for themselves, especially at tax time or when you reach the GST threshold. Ask for help with anything you do not understand rather than guessing.

Questions people ask

Do I need a separate business bank account?

You are not always required to, but it makes your records far clearer and your tax time easier.

How much should I set aside for tax?

It depends on your income, deductions and circumstances. Ask an accountant for a percentage to start with, and review it each quarter.

What should I do if a client does not pay?

Send a polite reminder, follow up in writing, and state the next steps in your terms. For large amounts, get advice about your options.

Which bookkeeping tool should I use?

Choose one that connects to your bank and handles invoicing. Our client management tool picks can help you compare.

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