My last name doesn't fit on the page "Let's start by getting to know you...". How should I proceed? Thank you

[Rachel_W · Accepted solution]

You can just enter as much of your last name as can fit in the space provided. 

When processing your tax return, the IRS matches the first four letters of your last name with your Social Security Number so leaving some letters off of your last name will not cause your Tax Return to reject.