The estimated tax return is the amount of tax payable or refundable that a taxpayer is subjected to when filing their tax returns. The estimated tax value populated in the tool is just an estimate. It is hard to estimate tax return unless total taxable deductions for that financial year are known. In our tool we have assumed total allowable deduction of $300 for each salaried person. Whether it will be a refund or payable may defer. Allowable deductions are subjected to each individual taxpayer and affect the return amount greatly, it can only be known once tax returns are finalised and lodged. For now, just consider it as the minimum net taxable return value.