What is the best professional tax software to use?

[luckyman799]

I have done taxes for the past 2 years, however I have worked for H&R Block. I have prepared taxes seperately but just used the free online software. I am now opening my own mobile tax service and would like to know which professional software is the best and inexpensive? I have looked up Drake and others but everything is about $1000 i was hoping to spend about $200-$400 on the software. Can someone out there please help me find the best software for my budget.

[johnson33445]

Another guarantee to look for if you use online tax software is one that says the price quoted at the time you started your return will not change if you file your return later in the season.thnks