If your not filling your taxes with an accountant, I highly recommend Quick Tax or Turbo Tax.  Both are essentially the same with Quick Tax servicing our neighbours to the north and Turbo Tax for United States residents.  Both Quick Tax and Turbo Tax are owned by Intuit.  Both are also probably the best selling tax software packages around.  There is a reason for that.  Both are easy to use and maximize your return. Both packages ensure 100% accuracy and range from FREE  to $129.  If your a student you can file for free and if your taxes are simple you can get your taxes done for as little as $20, including e-filling.  The process that guides you through your tax return is idiot proof.  Some of the higher versions like the platinum  includes multiple returns and free phone support.  They also have a 60-day money-back guarantee  and the Maximum Refund Guarantee.  If your filling taxes for your entire family I highly recommend a package that includes multiple returns and like the platinum that includes 8 returns.  If you use all eight tax returns it will cost you less then $10 per tax return.  If you have used a different package in the past, don’t worry, both QuickTax and TurboTax will allow you to import your data.  This makes it easy and saves a lot of time for subsequent years.