Congratulations on your new business!
As a business owner, you are required to keep track of the income you receive from the various entities/individuals who your provide services to. Entities paying you over $600 should be providing you you with a 1099NEC for the amounts that they pay. However, it is advisable for you to also keep track of the amounts you are paid as their maybe discrepancies between what they report and what you receive. At the same time, you will want to keep track of all of your business expenses that you incur. You will also want to keep receipts for the expenses that you incur.
A couple of links that you should look at you that will provide you with more detail are: Reporting Self-Employment Business Income and Deductions and Estimated Taxes: How to Determine What to Pay and When. These will assist you in getting started down the correct path.
