Software for 2017 returns is not available yet--it will be out late November/early December 2017. Meanwhile you could use the tax caster tool to get an idea of your 2017 tax situation. Keep in mind that there may be changes in the tax laws by then.
https://turbotax.intuit.com/tax-tools/calculators/taxcaster/
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**