What about if I'm using my maiden name for business but my married name is on my social security card? Will that cause problems?

That's exactly the kind of situation that causes tax matching problems. You should use your legal name (the one on your Social Security card) on the first line of the W-9 form. If you're using your maiden name as a business name, you would put that on the second line "Business name/disregarded entity name." Ideally, you should consider filing for a proper DBA ("doing business as") with your local government if you're consistently using your maiden name for business purposes. This creates a clear paper trail between your legal name and business name.

You typically only need to provide a W-9 once unless your information changes (like a new address, name change, or tax ID change). Some companies have policies requiring annual updates just to ensure they have current information, but it's not an IRS requirement. It's not unusual for a client to request an updated form each year - they're just being thorough with their record-keeping. If nothing has changed in your information, you can just complete a new form with the same details.

1 Thanks for this suggestion! I just checked my paystubs and you're absolutely right - my first employer continued to withhold for Colorado even after I moved to Washington. No wonder I owe so much! Is there any way to fix this after the fact or am I just stuck paying what I owe now?

9 Unfortunately, you generally can't fix it after the tax year has ended - you'll need to pay what you owe now. But you should immediately contact your payroll department to correct it for this year so you don't have the same problem next tax season. For this year's taxes, make sure you're filing as a part-year resident for Colorado and indicating the correct dates you lived in each state. That will at least ensure you're only paying Colorado tax on income earned while you were actually living there.

18 Colorado and Washington don't have a reciprocity agreement, but that's actually not relevant in this case anyway. Reciprocity agreements typically apply to people who live in one state but work in another. Since Washington has no income tax, there's no double taxation issue here. The problem is more about proper withholding and filing correctly as a part-year resident. The OP needs to file a part-year return for Colorado, reporting income earned while a resident there (plus any Colorado-sourced income after moving).

16 That makes sense, thanks! I was confusing reciprocity with something else. Sounds like moving to a no-income-tax state should be beneficial in the long run, even if it causes some confusion in the transition year.

That's smart! Do you just use a regular spreadsheet or is there a template somewhere? Also, how do you handle documents that have multiple numbers on them like investment statements?

I just use a regular Excel or Google Sheets spreadsheet that I created myself. Nothing fancy, just those columns I mentioned. For complex documents like investment statements, I expand my tracking approach. I create sub-rows under the main document listing key figures (dividends, capital gains distributions, etc.) and note the specific form boxes where those numbers should go. Sometimes I even take screenshots of the tax software entry screens and note which box on my document goes to which field in the software. It's a bit more work upfront, but it saves me tons of confusion, especially for documents that have dozens of figures on them.

I used IRS Free File last year with W-2, some freelance income, and a small amount of stocks. It worked fine for me! Just make sure you go through the IRS website (irs.gov/freefile) rather than going directly to the tax company sites. If you go direct, they sometimes don't show the free options.

That's really helpful! So technically even if my divorce wasn't finalized until July, if we were living separately since 2022 and I meet those other criteria, I could potentially file as Head of Household? How would I document this if I get audited?

Yes, exactly! If you were living separately since 2022, and you meet all the other criteria I listed, you could potentially qualify as Head of Household even before the divorce was finalized. For documentation, keep records showing separate residences (lease/mortgage documents, utility bills), proof you paid more than half of household expenses (receipts, bank statements), and documentation showing your children lived with you for more than half the year (school records, medical records, childcare receipts). Also maintain any legal separation paperwork or documentation showing when your spouse moved out.

This is a really good point. I live in Missouri and they required me to use the same filing status for state and federal after my divorce, but I have a friend in Kansas who was able to file differently. Definitely check your specific state rules.

Thanks for confirming this happens in other states too! It's so confusing because tax software doesn't always warn you about this state-specific stuff. I spent hours redoing my returns last year because of this exact issue.

Is this something you have to specifically request? I paid a similar notice last year and no one mentioned anything about penalty abatement to me. I had a perfect tax record before that too.

Yes, you absolutely have to specifically request penalty abatement - the IRS will almost never offer it voluntarily! It's not widely advertised, but it's an official IRS administrative waiver. Many people qualify but never know to ask for it. If you paid penalties within the last 2-3 years and had a clean record before that, you might be able to request a retroactive abatement and get those penalties refunded. You'd need to call the IRS and specifically request "First Time Penalty Abatement" for the tax year in question, explaining that you had a good compliance history before that. It's definitely worth trying!

This is solid advice. I work in a tax office and we see this all the time. People bring in final collection notices for issues that could have been easily resolved months earlier. By that point, options are much more limited and the amounts owed have usually increased significantly.