Xero’s free GST calculator

Nail your numbers every time with Xero’s goods and services tax (GST) calculator. It gives you fast, accurate figures for your invoices and expenses – and confidence in your numbers.

  • Included
    Apply the right GST rate (standard or reduced) instantly
  • Included
    Calculate the GST to add to your prices
  • Included
    Calculate the GST to claim on your expenses

Download your free GST calculator

Calculate the tax to add to sell prices or to find the GST component of prices. Get the GST calculator as an editable PDF.

Why nailing GST matters for your business

Think of GST as a part of your financial success. Accurately calculate this tax each time and you’ll see many benefits.

More accurate record-keeping

Know exactly how much GST to pay or expect as a refund in your GST returns.

Easier compliance with tax regulations

Avoid misreporting to the government – and any fines and audits.

Help with your cash flow

Track the cash in and out of your bank account to make more-informed decisions.

Better pricing strategies

Stay competitive in your market by factoring in GST when setting your prices.

A small business owner works out his GST.

Avoid common mistakes when calculating GST

GST rates change, so check you’re applying the right rates to your products and services. This makes sure you’re charging customers the right amounts – and keeps you on side with the tax authorities. Stay in the loop with GST rates by checking the ATO website. Then use Xero’s calculator to apply the relevant tax rate so your calculations are spot on.

See the IR website for GST info

GST rates change, so check you’re applying the right rates to your products and services. This makes sure you’re charging customers the right amounts – and keeps you on side with the tax authorities. Stay in the loop with GST rates by checking the ATO website. Then use Xero’s calculator to apply the relevant tax rate so your calculations are spot on.

See the IR website for GST info

Do you store admin in different files and folders on your computer? Do you use multiple tools and systems? Organise your financial records to keep everything accurate and accounted for. Name and save Xero’s GST calculator on your device or laptop, and use it for all your invoice and expense calculations for a consistent workflow.

Do you store admin in different files and folders on your computer? Do you use multiple tools and systems? Organise your financial records to keep everything accurate and accounted for. Name and save Xero’s GST calculator on your device or laptop, and use it for all your invoice and expense calculations for a consistent workflow.

You don’t need to charge GST on all goods and services, or include them in your tax returns. Donated goods and financial services are exempt. But just like GST rates, the list of exemptions sometimes changes, so keep yourself up to date.

Here’s info on GST exemptions from IR

You don’t need to charge GST on all goods and services, or include them in your tax returns. Donated goods and financial services are exempt. But just like GST rates, the list of exemptions sometimes changes, so keep yourself up to date.

Here’s info on GST exemptions from IR

How to use Xero’s GST calculator

Enter the correct GST rate – usually 15% (but double-check this). On the right-hand side of the tool, enter the original GST-exclusive price in the ‘Pre-GST price’ field. The GST component and the GST-inclusive sell price are automatically calculated for you.

Enter the correct GST rate – usually 15% (but double-check this). On the right-hand side of the tool, enter the original GST-exclusive price in the ‘Pre-GST price’ field. The GST component and the GST-inclusive sell price are automatically calculated for you.

Enter the correct GST rate. On the left-hand side of the tool, enter the GST-inclusive (total) price in the ‘sell price’ field. The calculator automatically works out the GST-exclusive price (the price before GST is added) and the GST component.

Enter the correct GST rate. On the left-hand side of the tool, enter the GST-inclusive (total) price in the ‘sell price’ field. The calculator automatically works out the GST-exclusive price (the price before GST is added) and the GST component.

Whenever you’re thinking of buying something for your business, calculate GST from the total price so you know its true cost (you can claim back the tax). Keep records of the total amount of GST you’ve charged your customers versus the total amount you’ve paid in expenses. You’ll then know whether you’re eligible for a refund.

Learn more about calculating your GST refund or payment

Whenever you’re thinking of buying something for your business, calculate GST from the total price so you know its true cost (you can claim back the tax). Keep records of the total amount of GST you’ve charged your customers versus the total amount you’ve paid in expenses. You’ll then know whether you’re eligible for a refund.

Learn more about calculating your GST refund or payment

Benefits of Xero’s GST calculator

Tax is less taxing with Xero’s GST calculator. It applies the GST calculation formula for you, so you get:

More accurate invoices and records

Xero’s GST calculator means no more adding up numbers in your head and more reliable figures for your invoices and records.

Time savings

Faster calculations win you back time to spend on your business.

Smoother record-keeping

Automatic calculations give you accurate, reliable numbers. Save and export your results so your records are ready for tax time.

Key features of Xero’s GST calculator

Use this single tool to both add and remove GST, thanks to its customisable fields for the GST rate, sell price, and pre-GST price.

Use this single tool to both add and remove GST, thanks to its customisable fields for the GST rate, sell price, and pre-GST price.

Speed up your paperwork and know your calculations are reliable.

Speed up your paperwork and know your calculations are reliable.

Save and export your calculations whenever you work out a new price. Store these as separate documents for your financial records.

Save and export your calculations whenever you work out a new price. Store these as separate documents for your financial records.

FAQs on GST

GST stands for goods and services tax, and is paid by the consumer. If your business is registered for GST, you must add this tax to your prices and then collect it for the government. For your business expenses – whether your business is GST-registered or not – you should record how much GST you’ve paid and reclaim this.

Learn more about GST

GST stands for goods and services tax, and is paid by the consumer. If your business is registered for GST, you must add this tax to your prices and then collect it for the government. For your business expenses – whether your business is GST-registered or not – you should record how much GST you’ve paid and reclaim this.

Learn more about GST

Work out your GST-inclusive price by multiplying your original price by 1.15. For example, if your original price is $100, multiply this by 1.15 to equal $115.

Work out your GST-inclusive price by multiplying your original price by 1.15. For example, if your original price is $100, multiply this by 1.15 to equal $115.

New Zealand has a standard GST rate of 15%, including imports. From time to time, the GST rate or the way it’s applied will change – as it did in 2024 for online marketplace sales. New Zealand also has a reduced GST rate of 9% for long-term hotel accommodation.

Here’s info from IR on how GST works

New Zealand has a standard GST rate of 15%, including imports. From time to time, the GST rate or the way it’s applied will change – as it did in 2024 for online marketplace sales. New Zealand also has a reduced GST rate of 9% for long-term hotel accommodation.

Here’s info from IR on how GST works

To register, you’ll need the IRD number for your business, your bank account number, your turnover in the past year, and your expected turnover in the coming year. You can apply through the online portal.

Register your business for GST with IR

To register, you’ll need the IRD number for your business, your bank account number, your turnover in the past year, and your expected turnover in the coming year. You can apply through the online portal.

Register your business for GST with IR

Get the gist of GST with Xero

Let Xero’s clever features do the work – from automating your calculations and updating all your financial information, to streamlining your returns to IR. And if you need your accountant, just give them access in Xero and work with them on the same set of numbers. Xero software:

  • Included
    Automatically calculates GST for your invoices and expenses
  • Included
    Shows how much GST you’ve paid and if you’re owed a refund
  • Included
    Sends GST online returns directly to the ATO
Tablet showing a GST return online. Displays breakdown of the transactions that make up GST totals.

Disclaimer

Xero does not provide accounting, tax, business or legal advice. This calculator has been provided for information purposes only. You should consult your own professional advisors for advice directly relating to your business.

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