If your income gets reported on forms like W2s and 1099-INTs from the bank, etc., your return should be simple.
If you need to construct profit and loss statements (because you have rentals or a small business) or you have a multistate or international tax footprint, then your return isn't simple. And you should simplify it if you can. :-)
Thank you, mine are definitely simple! We are just run of the mill recent college grads with our first real jobs and roughly 1K in a Betterment account.
Early on, and simple, is the best time to learn how to do them yourself. Get out your previous year's tax forms from your tax guy. Pick up the same forms from the library or download them from IRS.gov, and the instructions. Most of the form actually won't probably apply to you, and will remain blank (look at last year's forms for guidance). Follow the instructions, they generally go line-by-line.
Now, to file, you probably want to efile. You have options here - use commercial SW like TurboTax, etc., or use the fillable forms on the IRS site. If you are feeling unsure of your results working thru things on paper, try SW and see if your results match, or if they differ -where and why. The SW tend to use a Q&A format, asking you questions and filling in the relevant forms. I find this takes me much longer than just filling out the forms directly, since the SW must ask about everything possible, even if it doesn't apply to me (to cover all bases), while I have learned over time which forms I do and don't need. As a beginner, the SW being thorough could be good for you.
Depending on income, you could be eligible to use the IRS Free File options to use SW for free. Check out their link before beginning with any SW - you have to access it thru the IRS link for it to be free (or start over!). If you have a state income tax, check out your state tax website to similar free file options. I found that I had to access TurboTax thru my state link for BOTH the state and federal returns to be free, even though the IRS seemed to link to the same TurboTax site.
The advantage to doing things on paper is learning how taxes are figured, what affects your taxes or credits. Learning the what and how lets you start planning for future changes, and you can begin to see how to optimize your finances, as well as avoid pitfalls like going over an eligibility cliff. Start now while your situation is not complex, it won't be difficult to learn the basics, and each year you will learn a little bit more as life unfolds (house, kids, taxable investments, HSA, etc.)