As I said, the method of payment is in material. What is important is you keep a good ledger of your clients, payments, dates of work, receipts, etc. If audited, you must be able to prove everything on your tax return.
The simplest payment method is by check, payable to you (or your business) which is the easiest to prove when deposited into your bank account.
Your age is not material. You are aware, aren't you, that on self-employed income over $400, you must pay a separate SE tax in addition to the income tax (medicare and social security) which is 15.3 percent of your earnings.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
