Free tool
Ten per cent on, or an eleventh out.
Type one figure and get the other two. Put in your price and see what to charge; put in a GST-inclusive price and see the GST already inside it — which is an eleventh of the total, not ten per cent of it.
Nothing you type here leaves your browser.
What you charge, and what your work is worth, is nobody else’s business. The arithmetic happens on this device. There is no account, no upload and no sign-up. The page keeps a copy on this device so you can come back to it, and you can wipe that whenever you like.
Ten per cent goes on top. Charge the total, hand the GST on, and keep the rest — the tax was never part of your price.
Rounded to the nearest cent, and the three figures always add up.
Worksted works the GST out on every quote and invoice you raise, and breaks it out the way a tax invoice has to. See how invoicing works.
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GST is the easy part. The paperwork around it is the job.
Worksted works the GST out on every quote and invoice you raise, breaks it out the way a tax invoice has to, and keeps the total agreeing with the lines above it.