Summary:Currently payment can be made using the following link: ATO - Card Payment More details here: Terms and conditions when making a credit card payment to the ATO Card payment fee A card payment fee applies to transactions made using this service. This fee is not subject to goods and services tax (GST) and is equal to the fee the ATO incurs from its banker. The fee is a percentage of the tax amount being paid, based on the type of card used: Card typeFeeVisa/MasterCard (effective from 1 October 2011)0.54%American Express (effective from 1 August 2012)1.45% This Credit Card fee may be tax deductable. See here: Credit card payment fee deductibility guidelines | Australian Taxation Office Hi, I would have thought this was mentioned somewhere here already - and it probably is, but I couldn't see it.. So just in case this is new news, it seems the ATO is accepting credit cards for tax payments on a trial basis through to 17 April 2009. $10,000 limit (per taxpayer, I'm assuming, rather than per transaction). 0.69% surcharge payable, and Visa and Mastercard only (sadly no AMEX). ATO has some details of the trial on its website.