Tax return preparation for small business with an accountant reviewing financial documents

Tax Return Preparation for Small Business: What You Need

October 07, 2026•15 min read

Preparing your business tax return should not mean spending days searching through old emails, receipts and bank statements.

For most Australian small businesses, good tax return preparation for small business starts with one thing: giving your accountant complete, accurate and organised information.

Want expert help? Daintree Consulting's tax and BAS services can take this off your plate. Book a free consultation.

Your accountant needs more than a profit-and-loss statement. Depending on your business structure and circumstances, they may need details about business income, expenses, assets, loans, payroll, GST, motor vehicles, private use, previous losses and other financial transactions.

The better your records, the easier it is for your accountant to identify legitimate deductions, resolve questions and prepare your return accurately.

The Australian Taxation Office (ATO) expects businesses to keep records that support the amounts reported in tax returns and activity statements. Most business records generally need to be retained for five years, although some records have longer retention requirements.

So, what exactly should you give your accountant?

Quick answer: What does your accountant need for small business tax return preparation?

At a minimum, your accountant will generally need information covering:

  • Business income — sales, fees, commissions and other business income

  • Business expenses — supplier bills, operating costs and other deductible expenses

  • Bank and credit card records — statements and reconciliations

  • GST and BAS information — where applicable

  • Payroll information — wages, PAYG withholding and superannuation records

  • Asset purchases and disposals — equipment, vehicles, property and other significant assets

  • Business loans and finance — loan statements, interest and repayments

  • Motor vehicle use — business kilometres and supporting records where relevant

  • Home-based business expenses — where eligible

  • Previous tax returns and financial statements

  • Changes during the year — business structure, ownership, new assets, loans or major transactions

  • Any ATO correspondence that may affect the business or return

The exact information required depends on your business structure and circumstances. A sole trader, company, partnership and trust can have different reporting requirements.


Why getting your information ready matters

Tax time becomes difficult when the accountant receives incomplete information.

A common scenario looks like this:

You send your accountant a bank statement and say, “Everything should be there.”

But then questions start appearing.

What was that $12,000 payment?

Was that computer purchase a business expense or an asset?

Was the vehicle used privately?

Which expenses include GST?

Where are the invoices?

Was that loan used for the business?

Did you sell any business assets?

Did you receive income through another account?

These questions are not necessarily signs that something is wrong. They are part of making sure the tax return is based on accurate information.

The ATO specifically recommends keeping accurate records of cash and electronic transactions and having enough documentation to substantiate business expenses claimed as deductions. It also advises businesses not to rely on estimates when preparing tax returns or BAS.

That is why good tax return preparation for small business starts well before your accountant begins preparing the return.


1. Business income records

Your accountant needs to know how much income your business earned during the financial year.

This can include:

  • Customer sales

  • Service fees

  • Consulting income

  • Commissions

  • Online sales

  • Contract income

  • Other business receipts

  • Relevant government payments or grants

  • Other income connected with the business

If you use accounting software such as Xero, MYOB or another platform, your accountant may be able to work from your accounting file — provided the records are complete and reconciled.

You should also make sure all business bank accounts and payment platforms have been accounted for.

This includes transactions received through:

  • Bank transfers

  • EFTPOS

  • Credit cards

  • Payment platforms

  • Online marketplaces

  • Cash

The ATO advises businesses to keep accurate records of cash and electronic transactions and regularly reconcile sales with external payment records.

Don't forget income that doesn't appear in your main bank account

If customers pay you through different platforms or accounts, make sure your accountant knows about them.

For example, your business might receive payments through a bank account, PayPal-style payment platform, Stripe, an online marketplace or another merchant provider.

The goal is simple: your accountant should be able to reconcile your reported business income back to your underlying records.


2. Business expense information

Your accountant also needs a complete picture of your business expenses.

Depending on your business, this could include:

  • Rent

  • Utilities

  • Insurance

  • Advertising and marketing

  • Software subscriptions

  • Professional fees

  • Accounting fees

  • Legal fees

  • Office supplies

  • Telephone and internet

  • Repairs and maintenance

  • Contractor payments

  • Travel

  • Motor vehicle costs

  • Interest and finance costs

  • Employee-related expenses

  • Equipment and other business assets

Don't simply send a spreadsheet with a list of amounts.

Where appropriate, keep the supporting invoices, receipts and other records.

The ATO says business records need to contain enough information to calculate and support amounts claimed in tax returns and activity statements.

What if you don't have every receipt?

Tell your accountant.

Don't simply guess the amount or create a replacement figure because it “looks about right”.

The ATO specifically advises businesses to use complete and accurate records rather than estimates when preparing tax returns and BAS.

Your accountant can tell you what evidence is available and what may or may not be claimable.


3. Bank statements and reconciliations

Your accountant will generally need access to the financial records that show your business transactions.

This can include:

  • Business bank statements

  • Credit card statements

  • Loan statements

  • Merchant facility statements

  • Payment platform reports

  • Petty cash records

  • Other accounts used by the business

Ideally, these accounts should already be reconciled with your accounting software.

Why?

Because unreconciled accounts can hide:

  • Missing transactions

  • Duplicate transactions

  • Incorrect classifications

  • Unrecorded expenses

  • Unrecorded income

  • Personal transactions incorrectly treated as business expenses

If your bookkeeping isn't up to date, your accountant may need to spend additional time cleaning up the records before preparing the tax return.

Daintree's bookkeeping approach similarly focuses on accurate transaction coding, reconciliations, document capture and records that can support tax and BAS work.


4. GST and BAS information

If your business is registered for GST, your accountant may need your BAS records and supporting information.

This can include:

  • BAS lodged during the financial year

  • GST collected

  • GST paid

  • PAYG instalments

  • PAYG withholding information

  • BAS working papers

  • Outstanding BAS obligations

  • Adjustments or corrections

Your accountant may compare the information in your accounting system with the BAS already lodged.

This is important because your annual tax records should make sense alongside your GST and other reporting obligations.

Daintree's taxation and BAS service includes BAS preparation and lodgement support, GST and PAYG compliance support, year-end tax planning discussions and coordination with bookkeeping and accounting.


5. Payroll and employee information

If you employ staff, your accountant may need payroll-related information.

This can include:

  • Total wages

  • PAYG withholding

  • Superannuation information

  • Payroll reports

  • Single Touch Payroll records

  • Employee-related expenses

  • Leave-related information

  • Contractor information, where relevant

Payroll doesn't exist separately from the rest of your accounting system.

Wages affect your expenses, PAYG obligations, superannuation obligations and financial reporting.

That's why keeping payroll records accurate throughout the year can make year-end tax preparation considerably easier.


6. Asset purchases and disposals

Did your business purchase expensive equipment, computers, vehicles, machinery or other assets during the year?

Tell your accountant.

You may need to provide:

  • Purchase invoices

  • Purchase dates

  • Amounts paid

  • Finance or loan documents

  • Date the asset was first used

  • Details of private use, where relevant

  • Disposal or sale documents for assets you sold

Not every purchase should automatically be treated as an ordinary business expense.

Some assets may need to be treated under depreciation or other applicable tax rules.

For example, current ATO guidance on the small business instant asset write-off contains specific eligibility and threshold rules, and businesses need records such as invoices, receipts and delivery documentation to support claims.

Your accountant can determine the appropriate treatment based on the applicable rules and your circumstances.


7. Business loans and finance

If your business borrowed money during the year, provide the relevant loan information.

This might include:

  • Loan statements

  • Interest paid

  • Principal repayments

  • New finance agreements

  • Equipment finance

  • Business credit facilities

  • Loans used to purchase business assets

Your accountant needs to understand not just how much you paid, but what the finance relates to.

A loan repayment is not automatically treated the same way as an ordinary business expense.

Providing the complete loan documentation helps your accountant correctly identify the relevant interest, asset and liability information.


8. Motor vehicle information

If you use a vehicle for business purposes, your accountant may need additional information.

Depending on your circumstances and the method used, this could include:

  • Vehicle purchase documents

  • Registration costs

  • Insurance

  • Fuel

  • Repairs and maintenance

  • Finance costs

  • Lease information

  • Business kilometres

  • Logbook information

  • Evidence supporting business use

Don't assume that owning a vehicle through the business automatically makes all vehicle costs deductible.

The business-use component and the applicable tax rules matter.

Your accountant can determine which method and records apply to your circumstances.


9. Home-based business expenses

Many small businesses operate partly or entirely from home.

If you work from home, tell your accountant.

Potentially relevant information can include:

  • Electricity

  • Internet

  • Phone expenses

  • Home office costs

  • Occupancy-related expenses where applicable

  • Equipment

  • Office furniture

  • Work-related software

However, eligibility and calculation methods can vary.

The important thing is to give your accountant the underlying information rather than trying to decide yourself that a certain percentage is deductible.

Your accountant can assess the claim based on your circumstances and the applicable ATO requirements.


10. Previous tax returns and financial statements

If you're using a new accountant, provide your previous records.

Useful documents may include:

  • Previous business tax returns

  • Previous individual tax returns where relevant

  • Financial statements

  • Previous depreciation schedules

  • Prior-year workpapers

  • Loss schedules

  • ATO notices or correspondence

  • Details of unresolved tax matters

This gives your accountant historical context.

For example, previous tax losses, depreciation or other carried-forward items may affect the current year's tax position.

A new accountant shouldn't have to reconstruct your entire financial history from scratch if the information is already available.


11. Changes to your business structure

Tell your accountant about major changes during the year.

For example:

  • You changed from sole trader to company

  • You established a partnership

  • You established a trust

  • Ownership changed

  • A director or shareholder changed

  • You bought or sold a business

  • You started another business

  • You ceased trading

  • You added a new business activity

Business structure matters because tax and reporting obligations can differ between sole traders, partnerships, companies and trusts.

The ATO notes, for example, that sole traders report their business income through their individual tax return, while partnerships and trusts have their own reporting arrangements and distributions can flow through to beneficiaries or partners.

If there has been a structural change, tell your accountant early.


12. Major transactions during the year

Don't only send your routine bookkeeping records.

Tell your accountant about unusual or significant transactions.

Examples include:

  • Buying or selling property

  • Buying or selling a business

  • Selling business assets

  • Receiving an insurance payout

  • Taking out significant finance

  • Restructuring the business

  • Receiving grants

  • Making large investments

  • Disposing of shares or other investments

  • Transactions involving related parties

  • Major changes in ownership

These transactions may have tax consequences that aren't obvious from a normal profit-and-loss report.

If you're unsure whether something matters, tell your accountant anyway.

It's much easier for an accountant to decide that something isn't relevant than to discover it after the return has already been prepared.


A simple tax return preparation checklist for small business

Before sending your information to your accountant, work through this checklist.

Income

  • All business sales recorded

  • Online and electronic payments included

  • Cash income recorded

  • Other business income identified

Expenses

  • Supplier invoices recorded

  • Receipts collected

  • Software and subscriptions included

  • Professional fees included

  • Advertising and marketing expenses included

  • Travel and vehicle information prepared

  • Home-based business information prepared, where relevant

Banking

  • Business bank accounts reconciled

  • Credit cards reconciled

  • Merchant/payment platforms accounted for

  • Loan accounts reconciled

GST and payroll

  • BAS records available

  • GST information reconciled

  • PAYG information available

  • Payroll reports available

  • Superannuation records available

Assets and finance

  • New asset purchases identified

  • Asset sales identified

  • Vehicle purchases or disposals identified

  • Loan statements available

  • Finance documents available

Changes

  • Business structure changes reported

  • Ownership changes reported

  • Major transactions identified

  • ATO correspondence provided

  • Previous tax information available


What happens if your records aren't ready?

Don't panic — but don't ignore the problem either.

If your bookkeeping is incomplete, your first step may be to get the records brought up to date before the tax return is prepared.

That might involve:

  1. Reconciling bank accounts

  2. Reviewing uncategorised transactions

  3. Matching invoices and receipts

  4. Checking GST coding

  5. Reviewing payroll

  6. Identifying missing income

  7. Reviewing asset purchases

  8. Preparing the year-end financial reports

  9. Resolving outstanding questions

  10. Preparing the tax return from the cleaned-up records

This is one reason bookkeeping and tax preparation work so closely together.

Clean bookkeeping gives your accountant a reliable foundation.

Daintree's service model connects bookkeeping, accounting and taxation rather than treating them as completely separate processes.


How to make tax return preparation easier next year

You don't have to wait until June or July to start preparing.

A better approach is to make tax readiness part of your normal financial routine.

1. Keep business and personal transactions organised

Mixing personal and business transactions makes reconciliation harder and increases the chance of incorrect claims.

2. Capture receipts immediately

Don't leave a box of receipts sitting in the office for 12 months.

Use a consistent digital filing or receipt-capture process.

3. Reconcile regularly

Monthly reconciliation is much easier than trying to reconstruct an entire financial year at tax time.

4. Keep your accounting software current

Your accountant should be working from financial data that reflects the actual position of the business.

5. Ask questions before making major transactions

Thinking about buying a vehicle, property, equipment or another business?

Ask your accountant before the transaction where possible.

Tax considerations can sometimes influence how you structure or time a transaction.

6. Keep records long enough

The ATO generally requires most business records to be kept for five years, although some records need to be retained longer depending on the transaction or circumstances.


Why Daintree Consulting takes a connected approach

Tax return preparation shouldn't be an isolated year-end exercise.

Your tax return is built from the financial information created throughout the year.

If bookkeeping is inaccurate, tax preparation becomes harder.

If BAS records don't reconcile, questions arise.

If financial reporting isn't clear, it becomes harder to understand what is happening in the business.

Daintree Consulting provides connected accounting, bookkeeping and payroll, taxation and BAS compliance, business advisory and outsourced CFO support for Australian businesses.

The objective isn't simply to lodge another return.

It's to give business owners clearer numbers, fewer surprises and better information for decisions.

Daintree's taxation and BAS service covers business and eligible individual tax returns, BAS support, GST and PAYG compliance, year-end tax planning discussions and coordination with bookkeeping and accounting services.

For a business owner, that means your accountant can spend less time asking, “Where is this information?” and more time asking, “What does this information tell us?”


Ready for a smoother tax return?

You don't need to have every number perfectly organised before asking for help.

If your bookkeeping is behind, you're unsure what information your accountant needs, or tax time keeps turning into a last-minute scramble, the first step is simply understanding what's missing.

Book a free 30-minute discovery call with Daintree Consulting.

We'll look at where clarity is breaking down and identify a practical next step — with no pressure and no obligation.


FAQs: Tax Return Preparation for Small Business

What information does an accountant need for a small business tax return?

An accountant will generally need information about business income, expenses, bank accounts, GST and BAS records, payroll, assets, loans and other significant transactions. The exact requirements depend on your business structure and circumstances.

Do I need to give my accountant every receipt?

You should keep appropriate records that support your income and expenses. The ATO requires businesses to maintain records that substantiate amounts reported in tax returns and activity statements.

Your accountant can advise which documents are relevant to your particular claims.

How long should a small business keep tax records?

Most business records generally need to be kept for five years, although some records need to be kept longer depending on the transaction and circumstances.

What if my bookkeeping isn't finished before tax time?

Tell your accountant. You may need to complete bookkeeping, reconciliations and record collection before the tax return can be prepared accurately. Trying to estimate missing figures can create unnecessary risks.

Does my accountant need my BAS records?

If your business is registered for GST or has other BAS obligations, your accountant may need your BAS records and supporting information to reconcile the year's reporting and prepare the relevant tax work.

Can an accountant help with more than preparing my tax return?

Yes. Depending on the engagement, an accountant may also provide bookkeeping, BAS support, financial reporting, tax planning, business advisory and CFO services. Daintree Consulting provides these capabilities as connected services for Australian businesses.


Final takeaway

Good tax return preparation for small business starts with good information.

If your accountant receives complete income records, supported expenses, reconciled accounts, BAS information, payroll records, asset details and information about major business changes, the preparation process becomes much more straightforward.

More importantly, clean records give you a clearer picture of the business itself.

Tax time shouldn't be the first time you look closely at your numbers.

Keep the records current. Reconcile regularly. Ask questions early. And use your accountant not only to lodge the return, but to help you understand what the numbers are telling you.


Talk to Daintree about your tax and BAS

Our ex-Big 4 team gives clear, senior-reviewed advice so you can act with confidence.

Book a free consultation →

Or explore our tax and BAS services.

blog author avatar

Ram Vaidyanathan

Managing Director of Daintree Consulting, a Brisbane-based CA ANZ member firm. Ex-Big 4 team providing accounting, tax, audit support and advisory for Australian businesses and SMSFs.

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