I have started programming work on 2019 which was a side work (Started 0n Feb 2019 and stopped on Oct 2019) ,I started my LLC Company on Aug, how to fill up expenses?

To report your expenses for the Single Member LLC,  you go to

• Wages & Income
• Self-Employment
• Self-employment income and expenses

The Income and Expenses for a Single Member LLC are reported on your personal tax return on Schedule C.

If you have no receipt for the asset and take a deduction for it, on your tax return, you are running a risk.  If the IRS questions the expense, you need to have a receipt for the purchase.  Without a receipt the IRS will not allow you to take a deduction on your tax return.  Once they disallow the deduction, you will be assessed taxes, penalties and interest on the deduction.

@arash_ra