GST Calculator Australia

• Tweet
• Email

• Tweet
• Email

I has to write this function for my own project so I thought I should share. In no regards this should be treated as Primary GST calculator. You should always goto an expert for all your GST need i.e. Accountants etc.

BTW GST stands for Goods and Services Tax and this Tax was introduced into Australia in July 2000. A Tax rate of 10% applied to most goods and services. I guess there are many Items that are exempted as well to keep the cost of living down.

If you find any bug with this calculator please let me know

The javascript function are given below

<script type="text/javascript">
		function gstplus() {
			var _iniamount = parseFloat(document.getElementById('amount').value);
			var _gst = parseFloat(_iniamount * 1.1) - _iniamount;
			_gst = Math.round(_gst*100)/100
			document.getElementById('gst').value = _gst;
			document.getElementById('subtotal').value = _iniamount;
			document.getElementById('totalincgst').value =Math.round((_iniamount+_gst)*100)/100;
		}
		function gstminus() {
			var _iniamount = parseFloat(document.getElementById('amount').value);
			var _gst = parseFloat(_iniamount / 11) ;
			_gst = Math.round(_gst*100)/100
			document.getElementById('gst').value = _gst;
			document.getElementById('subtotal').value = Math.round((_iniamount - _gst)*100)/100 ;
			document.getElementById('totalincgst').value =Math.round((_iniamount)*100)/100;
 
		}
		</script>

If you have any doubts ask your accountant

Cheers

Search Terms:

• gst calculator australia
• australia gst rounding down
• gst australia calculator
• how to calculate the gst exclusive amount in australia
• mathematical way to calculate gst exclusive amount

Jaspreet Chahal

Self-confessed Max Payne and Howzat Cricket game addict. Big fan of Dharmendra, Keanu reeves & Lawrence "Larry" Page. I love my Wife, my son and bit of geeky stuff. I started falling in love with Blog'in last year. Writing is tending out to be fun. I write on situation I was in thus my post always travel around web development stuff. I hope you enjoy my posts.

More Posts - Website

Follow Me: