When your baby is a little older, you can start adding pumping to your daily routine. While it's not necessary, it's comforting to have a little bit of a stash of milk built up before you return to work. Warning - be sure to read this page on smart use of your freezer stash!
You must file a tax return if your net earnings from self-employment were $400 or more. So consider this: you may be 36 years old, single and make less than $10,000 per year in regular employment income, but if you have a side business that nets you more than $400, you will need to file a federal tax return.
For the 2016 tax year (filed in 2017), single filers under the age of 65 who earn more than $10,350 and singles over 65 with more than $11,900 in earnings had to file a tax return. Head of household filers under 65 making more than $13,350 and those older than 65 with head of household status plus more than $14,900 in taxable income were also required to file.