I completely understand your anxiety - I was in a very similar position when I started my tax internship! The good news is that most firms really do expect interns to start from scratch, so you're not as behind as you think. Here's what I'd recommend for your immediate prep: Download the current year's Form 1040 from the IRS website and study it line by line. Don't worry about memorizing everything, just get familiar with the layout and what types of information go where. Then grab some sample tax scenarios online (search for "practice tax returns" or "tax preparation exercises") and try working through them on paper first. The IRS Volunteer Income Tax Assistance (VITA) program has free training materials that are actually really good for beginners - they break everything down in simple terms. You can find their basic training materials online even if you're not volunteering. Most importantly, when you start the internship, be upfront about your learning curve but show enthusiasm. Ask lots of questions, take detailed notes, and don't be afraid to say "I don't know this yet, can you show me?" The worst interns are the ones who pretend to know things and make mistakes - the best ones are eager learners who ask for help. You've got this! Everyone starts somewhere, and the fact that you're taking initiative to prepare shows you'll do great.

I can really relate to your situation! I was in almost the exact same boat when I started my tax internship last year - I had basically no practical tax knowledge despite taking accounting classes. Here's what really helped me get through those first few weeks: First, don't underestimate the value of your tutoring and communication experience. Those skills transfer really well to tax prep because you'll be explaining concepts to clients and asking clarifying questions. The ability to break things down simply is huge in this field. For immediate preparation, I'd recommend starting with the IRS's basic taxpayer education materials rather than jumping into complex professional resources. The "Understanding Taxes" section on irs.gov has interactive lessons that explain concepts without being overwhelming. Also, YouTube channels like "Professor Farhat Accounting Lectures" have great beginner-friendly tax videos. Here's something nobody told me: bring a small notepad and pen everywhere during your first week. Write down every acronym, form number, or process someone mentions. Tax work has SO much jargon, and having your own reference will help you follow conversations better. Most importantly, remember that your firm chose you for a reason, even if your transcript wasn't perfect. They saw potential in you. Focus on being reliable, asking thoughtful questions, and showing genuine interest in learning. Those qualities matter way more than coming in with existing knowledge. You're going to do better than you think - the fact that you're already seeking advice shows you have the right mindset for success!

11 Has anyone successfully updated their W-4 to fix this? My HR department seems completely confused whenever I ask them about adjusting my withholding amount.

I feel your frustration! I went through the exact same thing two years ago and was livid about getting penalized for something that seemed like my employer's mistake. But after dealing with it, I learned that we really do need to monitor our withholding throughout the year. What helped me was setting up a simple spreadsheet to track my year-to-date withholding against what I expect to owe. I check it every quarter now. If you're consistently getting refunds, you're probably safe, but if you usually owe money at filing time, that's a red flag that you need more withheld. The penalty calculation is actually pretty forgiving - you only get hit if you owe more than $1,000 AND didn't pay at least 90% of this year's tax or 100% of last year's tax through withholding. So even if your employer messes up slightly, you might still avoid penalties. For next year, I'd recommend using the IRS withholding calculator around mid-year to see if you're on track. It's much better to catch this in July than in April!

Will the bank or investment company where you have your IRA ask you for proof of income before accepting your contributions? I make some money from occasional gig work and have been wondering about this too.

This is a serious situation that needs immediate attention. You've essentially committed tax evasion by not reporting the cash tip, and then compounded the problem by making IRA contributions based on unreported income. The IRS absolutely can and will catch this. They receive Form 5498 from your IRA custodian showing your contributions, and their automated matching systems will flag that you contributed more than your reported W-2 income. This isn't a "maybe they'll notice" situation - it's an automatic red flag in their system. You have two options to fix this before it becomes a bigger problem: 1. File an amended return (Form 1040X) to report the cash tip income and pay the taxes owed 2. Remove the excess contribution from your Roth IRA before the tax deadline I'd strongly recommend option 1 - report all your income properly. Yes, you'll owe taxes on that cash tip, but it's much better than dealing with penalties for unreported income AND excess IRA contributions. The IRS is more lenient when you self-correct mistakes before they find them. Don't try to hide this or hope they won't notice. The matching systems are very sophisticated, and getting caught later means much higher penalties and potential criminal charges for tax evasion.

Does anyone know if storm doors count for this credit? I replaced my front storm door with an energy efficient one, but I'm not sure if it qualifies since it's not the main exterior door.

Just wanted to add some clarification about the installation costs since you mentioned spending $1,200 including installation. The Energy Star door credit only applies to the cost of the door itself, not the installation labor. So if your door cost $800 and installation was $400, you'd calculate the credit based on the $800 door cost only. Also, make sure to double-check that your door has the Energy Star label - some doors are "energy efficient" but don't actually have the official Energy Star certification that's required for the tax credit. The manufacturer should have provided a certification statement with the Energy Star logo and your specific model number listed. One more tip: if you're doing other energy improvements this year (windows, insulation, heat pumps, etc.), remember that there's an overall annual limit of $3,200 for all residential energy credits combined, so it's worth planning out your improvements strategically across tax years if you're doing major renovations.

One other thing to consider - if you've been a contractor for 8 years without filing, make sure you look into SEP IRAs or Solo 401(k) options as part of your catch-up filing. You might be able to make retroactive retirement contributions for some of those years which could significantly reduce your tax liability. I found out about this when I was catching up on my taxes and it saved me thousands. Obviously talk to a tax pro about this, but just wanted to mention it since it's a lesser-known strategy for self-employed people.

I want to echo what others have said about this being fixable - you're not the first person to get overwhelmed by self-employment taxes, and you won't be the last. The fact that you've been saving money shows you weren't completely ignoring the problem, just paralyzed by it. Regarding the passport situation specifically: the State Department typically only denies passports for "seriously delinquent tax debt" which requires the IRS to have already assessed your tax liability (meaning they've calculated what you owe). Since you haven't filed and they haven't contacted you, there may not be an official assessment yet. However, this could change quickly once you start the filing process. One practical suggestion: consider requesting your IRS transcript online to see what information they actually have on file about you. This might help you understand whether you're truly "under the radar" or if there's something you're not aware of. The anxiety and panic attacks you describe are incredibly common with tax issues. Many tax professionals are trained to work with clients who have tax anxiety - it's not unusual for them. When you do seek help, mention this upfront so they can work with you at a pace that doesn't trigger panic attacks. You've already taken the hardest step by acknowledging the situation. Everything from here is just execution, and there are people who can help you through each step.