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Just a heads up - even if your income was below the filing threshold, you might still want to file if you had any federal taxes withheld from your paychecks. You could be due a refund! The IRS only gives you 3 years to claim refunds, so 2018 would still be within that window if you file soon.
Oh that's a really good point I hadn't considered! I did have some taxes taken out of my paychecks that year. Do you know if I'd still be able to get that money back even though it's been a few years?
Yes, you can still get that money back! For 2018 returns, you have until April 15, 2022 to file and claim any refund owed to you. After that date, any unclaimed refund becomes property of the Treasury. If you're due a refund, there's actually no penalty for filing late. The penalties only apply when you owe taxes. So this might be a win-win - you comply with the IRS request and potentially get some money back at the same time.
For anyone else who runs into this situation - I learned the hard way that even if you're under the filing threshold, if you received the Premium Tax Credit (Obamacare subsidy) during that year, you ARE required to file a return regardless of income. The IRS came after me for this exact reason.
Also worth noting that if you had self-employment income over $400, you're required to file too, even if your total income is below the standard threshold. Made that mistake my first year doing gig work.
One thing to consider that nobody's mentioned yet is state taxes and fees. Some states (looking at you, California) charge S Corps an annual fee regardless of whether you make a profit. For my small side business, the $800 minimum franchise tax in CA made an S Corp completely impractical until I was making significant money. Also, think about growth plans. If you might want outside investors someday, an LLC taxed as a partnership gives you more flexibility than an S Corp, which has strict ownership limitations.
Good point about state fees! Also, does anyone know if you can change your mind later? Like if we start as a partnership, can we convert to S Corp next year if we decide that's better?
Yes, you can absolutely change later. Many businesses start as partnerships for simplicity, then convert to S Corps when their profits justify it. The conversion is straightforward - you file Form 8832 to elect to be taxed as a corporation, then Form 2553 to elect S Corp status. Just be aware there are timing requirements. Generally, if you want S Corp status for a particular tax year, you need to file within the first 2.5 months of that year (or within 75 days of forming your business if it's a new entity).
Important question nobody's asked yet: how much are you and your partner planning to take out of the business vs reinvest? This dramatically affects the partnership vs S Corp decision. If you're reinvesting most profits back into growing the business (buying more trucks, hiring staff), partnership might be simpler for now. If you're taking most profits out as income, S Corp could save significant self-employment taxes.
Look at your withholding on both W-2s, specifically box 2 (federal income tax withheld). If the combined withholding is less than about 15% of your combined income, that's probably why you're owing money. The issue isn't whether to file jointly vs separately - it's that you didn't have enough tax withheld throughout the year. Filing separately probably won't help and could hurt since you'll lose certain tax benefits. Instead, both of you should update your W-4s with your employers to have additional tax withheld each paycheck. You'll take home slightly less each month but won't get surprised at tax time.
What percentage should married couples have withheld? We both put "married" on our W-4s but still ended up owing this year.
There's no one perfect percentage that works for everyone, but for married couples with two incomes, a common issue is that both of you are having taxes withheld at the married rate, which assumes the other spouse doesn't work. If both of you select "Married" on your W-4 without any adjustments, you're essentially both claiming the full married tax bracket benefit, which results in underwithholding. In 2025, you should either select "Married, but withhold at higher Single rate" on your W-4s, or use the Two-Earners/Multiple Jobs worksheet (or your company's payroll system calculator) to determine the additional amount to withhold per paycheck.
Has anyone tried running the numbers both ways (MFJ and MFS) in their tax software? Most programs will tell you which one gives you the better outcome. When I was in a similar situation, I found that even though I owed money filing jointly, I would've owed even MORE filing separately!
Have you considered forming an S-Corporation instead of staying as a sole proprietor? Once your income reaches a certain level, it can save significantly on SE taxes. You'd pay yourself a "reasonable salary" that's subject to employment taxes, but the rest can be taken as distributions that aren't subject to self-employment tax. There are additional costs (filing fees, more complex tax returns), so it's usually only worth it when you're making $40k+ consistently, but something to consider for the future.
This! I switched to an S-Corp last year and it saved me about $4k in self-employment taxes. Just make sure your salary is "reasonable" for your industry or the IRS might get suspicious. Also, you'll need to run actual payroll which adds some complexity and costs.
That's exactly right. The key is finding the sweet spot where the tax savings outweigh the additional costs and complexity. For my web development business, I waited until I was consistently making about $60k before making the switch. The "reasonable salary" part is crucial - you can't just pay yourself $1 and take everything else as distributions. I researched industry standards for my area and skill level, then documented why my salary was reasonable. Having this documentation is important if you're ever questioned. Also worth mentioning that with an S-Corp, you'll need to separate your personal and business finances completely, run payroll (usually through a service), and file more complex tax returns. There's software that helps with this, but it's definitely more work than a sole proprietorship.
Has anyone looked into the Qualified Business Income deduction (Section 199A)? It lets you deduct up to 20% of your net business income if you qualify. It's separate from your business expense deductions and designed specifically to help small business owners. Might help offset some of that SE tax burden.
I vaguely remember seeing something about this when I was researching, but wasn't sure if it applied to me since my income is relatively low. Does it work for all self-employed people or are there specific requirements? How complicated is it to calculate?
Chloe Anderson
One thing no one has mentioned - the IRS matching system might have already flagged this if your wife's Social Security number shows as married on other documents but single HOH on tax returns. You might want to check if she's received any notices from the IRS in the past that she ignored.
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AstroAdventurer
ā¢Thanks for mentioning this. I asked her and surprisingly, she says she's never received any notices from the IRS questioning her filing status. Which seems weird to me? Wouldn't they automatically catch that we're married but filing differently?
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Chloe Anderson
ā¢The IRS system isn't as automated and efficient as people think. They have matching programs that flag obvious discrepancies like reported income not matching W-2s, but filing status verification is more complex and often requires human review. The IRS is severely understaffed and underfunded, so many issues that should be caught slip through. This doesn't mean you're in the clear though - they can still discover it during a random audit or if another issue triggers a review of her returns. The fact that she hasn't received notices yet is actually pretty common, but doesn't mean it won't become a problem later.
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Diego Vargas
Has your wife been claiming dependents too? Because that's what makes this potentially more serious. HOH status requires having a qualifying dependent, and there are strict rules about who can claim children when parents are married.
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Anastasia Fedorov
ā¢This is crucial. If you've been claiming the same dependents on your return while she's also claiming them as HOH, that's definitely going to raise red flags for the IRS.
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