Without this information, the customer might not know what the invoice is for and not return payment. The customer's information. Include the customer's address, phone number, social security or tax ID number, and any other relevant information. When a customer sends you a payment, you'll know exactly whom it's from.
Most people advise filing taxes every year, even if you income is super-low, so that the IRS never has any extra reason to audit you. As I, a non-professional understand it: $3,300 is the minimum to have to file if you work for an employer and get a W2. $400 is the minimum if you're self employed. Also, if you're getting a tax refund, you MUST file. Most people advise filing taxes every year, even if you income is super-low, so that the IRS never has any extra reason to audit you. As I, a non-professional understand it: $3,300 is the minimum to have to file if you work for an employer and get a W2.
Here are some basic guidelines: 1  For single dependents who are under the age of 65 and not blind, you generally must file a federal income tax return if your unearned income (such as from dividends or interest) was more than $1,050 or if your earned income (such as from wages or salary) was more than $6,300.