After you file

If you are not trying to deduct a casualty loss there is no reason at all to put anything about your car accident on your tax return and no reason to upgrade from Free Edition.  Unless you are itemizing any other deductions such as mortgage interest, it is unlikely your car loss could affect your tax return.  Here is some information to help you understand.

CASUALTY LOSS

It is difficult to claim a casualty loss because you have to meet a tough threshhold. Only the amount of a casualty loss that is OVER 10% of your adjusted gross income can be counted toward your itemized deductions, and even then you must subtract $100 from that amount.  If your loss was covered by insurance, it is very unlikely that the amount of your deductible would be enough to count as a deduction.  If you want to enter your casualty loss, go to the Federal>Deductions and Credits> Other Deductions and Credits>Casualties and Thefts.

https://ttlc.intuit.com/questions/1901178-casualty-and-theft-losses

STANDARD DEDUCTION

Your itemized deductions have to be more than your standard deduction before you will see a change in your tax owed or tax refund.  The deductions you enter do not necessarily count “dollar for dollar;” many of them are subject to meeting  tough thresholds—medical expenses, job-related expenses, casualty and theft losses, for example, must meet thresholds that are pretty hard to reach.  The software program uses all the IRS rules that apply to the expenses you enter, and it tells you if you have enough to use your itemized deductions or if using the standard deduction is more advantageous for you. Here are the Standard Deductions for 2017

Your standard deduction lowers your taxable income.  It is not a refund 

2017 Standard Deductions

Single    $6350  (65 or older + $1550)

Married Filing Separately   $6350  (65 or older +  $1250)

Married Filing Jointly           $12,700  (65 or older + $1250@)

Head of Household $9350  (65 or older + $1550)