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When you can claim a GST credit

Find out if you can claim GST credits.

Last updated 8 January 2026

Claiming GST credits

You can claim a credit for any goods and services tax (GST) included in the price you pay for things you use in your business. This is called an input tax credit, or a GST credit.

To claim GST credits in your business activity statement (BAS), you must be registered for GST.

You can claim GST credits if:

  • you intend to use your purchase solely or partly for your business, and the purchase does not relate to making input-taxed supplies
  • the purchase price included GST
  • you provide or are liable to provide payment for the item you purchased
  • you have a tax invoice from your supplier (for purchases more than A$82.50).

When claiming GST credits, make sure your suppliers are registered for GST. You can check the GST registration status of an entity by searching ABN LookupExternal Link on the Australian Business Register website. A 4-year credit time limit applies for claiming GST credits.

For more information, see:

GST and purchases for private use

If you purchase goods or services for both business and private use, you can only claim a GST credit for the part of the purchase relating to your business use.

If you later find your actual use has differed from your intended use, you may need to adjust the amount of GST credits you have claimed.

If you are a small business, you may be able to account for the private portion of your business purchases once a year, rather than each time you lodge an activity statement. To do this you need to make an annual private apportionment election.

For more information, see:

When you need a tax invoice

You must have a tax invoice to claim a GST credit for purchases that cost more than A$82.50 (including GST). Your supplier has 28 days to provide you with a tax invoice after you request one. Wait until you receive it before you claim the GST credit, even if this is in a later reporting period.

Tax invoice is incomplete

An invoice containing incorrect or incomplete information is not a valid tax invoice. You may be able to treat it as a tax invoice if it is missing information that can be obtained from other documents the supplier has given you. Alternatively, you can ask your supplier to replace it with a complete and correct tax invoice.

When you don't receive a tax invoice

If your supplier does not respond to your request for a valid tax invoice:

  • within the 28-day period, and
  • you haven't been able to find the missing information from other documents issued to you by the supplier, then

you can seek our permission to treat a document as a valid tax invoice.

To request our permission, you can either:

  • contact us using Online services for business or Online services for agents and select 
    • Communication tab
    • either Secure mail or Practice mail
    • New
    • in the Topic field, select View more topics from the drop-down list
    • in the Other topics list, select GST
    • subject Other sales, purchases or tax invoice enquiry from the drop-down list
    • complete all the required details, and select Submit
  • write to us at
    • AUSTRALIAN TAXATION OFFICE
      PO BOX 3524
      ALBURY  NSW  2640.

Small purchases

To claim a GST credit for purchases that cost A$82.50 or less (including GST), you should have one of the following:

  • tax invoice
  • cash register docket
  • receipt
  • invoice.

If you can't get one of these, keep a record of the purchase, such as a diary entry with the:

  • name and Australian business number (ABN) of the supplier
  • date of purchase
  • description of the items purchased
  • amount paid.

For more information, see Tax invoices.

When you should not be charged GST

GST generally applies to:

  • imported services and digital products
  • low-value imported goods.

You should not be charged GST on these sales if you are registered for GST. You must give the supplier your ABN and state that you are registered for GST. The supplier is not required to provide tax invoices for these sales.

If the supplier has wrongly charged you GST on an imported service, digital product or a low value imported good, you should seek a refund from the supplier.

Reverse charges rules

If you have not been charged GST on a purchase because you have provided the supplier with your ABN and a statement that you are registered for GST, in some circumstances ‘reverse charge’ rules require you to pay GST on the relevant purchase through your BAS.

Broadly, under these reverse charge rules, you will need to pay GST on a purchase if you would not have been entitled to claim a full GST credit.

If you are a non-resident business selling goods and services into Australia, see GST for non-resident businesses.

How to work out a GST credit

If your tax invoice does not specify the amount of GST included in the price of your purchase by only stating that the price includes GST, you can work out the GST amount yourself by dividing the price by 11. The answer is the amount of GST credit you can claim (provided you use the item wholly for business purposes).

For purchases that you use both for business and private purposes, you can claim a GST credit for the portion you use for business purposes. For example, if 50% of your use of the purchased item is for business purposes, you can claim a credit of 50% of the GST you paid.

If you account on a cash basis and have not fully paid for a purchase, you can claim a GST credit only for the GST included in the amount you have paid. For more information, refer to Choosing an accounting method for GST.

When you have worked out your total GST credits, you can offset them against the amount of GST you are liable to pay to us. If your GST credits are greater than the amount you are liable to pay, you're entitled to a refund.

Tax period you can claim GST credits

The tax period in which you can claim your GST credits will depend on your GST accounting method. The tax period may also be changed by special rules for specific GST credit claims.

GST accounting methods

If you account for GST on a cash basis, you can claim a GST credit for a purchase in the tax period in which you make the payment. If you make the payment over multiple tax periods, you can only claim the GST credit in each tax period that relates to the payment made.

If you account for GST on a non-cash (accruals) basis, you can claim your full GST credit for a purchase in the first tax period in which either:

  • an invoice for the purchase is issued
  • you provide part or all of the payment for your purchase.

However, if you need a tax invoice for your purchase, you cannot claim your GST credit until you hold a tax invoice.

Example: cash basis claim paid in monthly instalments

TD Co reports GST monthly and accounts for GST on a cash basis. TD Co purchase equipment for $6,600 (including GST) in July. The payment terms are 3 equal instalments paid across 3 months – July, August and September. TD Co receive an invoice for the total amount including GST in July, but don't receive the valid tax invoice until August.

In July, TD Co pays the first instalment of $2,200. Even though they make a payment, they cannot claim any GST credits in the July BAS as they do not hold a tax invoice.

In August, TD Co makes the second instalment payment of $2,200. TD Co also receives a tax invoice for the total of $6,600 (including GST).

TD Co can claim GST credits of $400 in their August BAS. This is made up of:

  • $200 of GST credits for the July payment
  • $200 of GST credits for the August payment.

TD Co makes the final payment in September. They can claim the last $200 of GST credits in their September BAS.

End of example

Unclaimed GST credits

Sometimes, you may miss claiming a credit in your BAS. This can happen, for example, if you were not aware that you held the tax invoice for a purchase, or you have not yet worked out if you are entitled to a GST credit.

To claim these unclaimed GST credits, you can either:

  • request an amendment to the tax period in which you could have first claimed the GST credits
  • choose to claim the GST credits in a later BAS, for example, in your next BAS.

Generally, it is easier to include unclaimed GST credits in your next BAS rather than request to amend the earlier tax period. To make the choice to include unclaimed GST credits in your next BAS, you simply add them in the total amount of GST credits on that BAS. There is no other notification you need to give us. However, you will need to keep your own records that document and evidence your choice to claim the GST credits in that later BAS.

Example: claiming credits in your next BAS

In the previous example above, assume that TD Co does not make any GST credit claim on the purchase as they are unsure if they are entitled to those GST credits.

In November, before lodging their October BAS, TD Co finishes their review and is satisfied that they are entitled to GST credits on their equipment purchase. To claim their GST credits, TD Co can either:

  • claim the $600 in their October BAS
  • request an amendment to their
    • August period to claim $400 of GST credits
    • September period to claim $200 of GST credits.

TD Co chooses to claim the $600 in their October BAS. TD Co works out the other unrelated GST credits that they can claim in October is $1,000. When completing their October BAS, TD Co claims a total of $1,600 GST credits.

End of example

Credit Time limit

A 4-year credit time limit applies to GST credit claims. If you consider you are entitled to GST credits that haven't yet been claimed, we recommend you consider your options early. Don't leave requests to the last minute.

For more information see MT 2024/1: Miscellaneous tax: time limits for claiming an input tax or fuel tax credit.

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