You just realized your tax bill is enormous. Maybe you got a raise, sold some stock, or had a good year in your side business. Now you’re facing a chunk of money headed to the IRS in April—and you’re wondering if there’s anything you can actually do about it before then.
The good news: there absolutely is. You don’t need to earn less money or do anything shady. The U.S. tax code is literally designed with legal ways to reduce what you owe, and most working Americans leave thousands of dollars on the table by not using them. The strategy comes down to understanding deductions and contributions that shrink your taxable income before the IRS even calculates what you owe.
This isn’t about tax avoidance—it’s about tax efficiency. Let’s walk through the concrete moves you can make right now to keep more of what you earn.
Maximize Your 401(k) or Workplace Retirement Plan
If your employer offers a 401(k), this is your single biggest legal lever for cutting taxable income in a given year.
Here’s how it works: money you contribute to a traditional 401(k) comes before taxes are calculated on your paycheck. That means if you earn $80,000 and contribute $7,000 to your 401(k), you only pay federal income tax on $73,000. That’s a direct reduction in your taxable income.
For 2024, you can contribute up to $23,500 to a 401(k) (or $31,000 if you’re 50 or older with catch-up contributions). Even maxing out a portion of that makes a real dent. Contributing an extra $500 a month—$6,000 a year—could save you roughly $1,440 in federal taxes if you’re in the 24% tax bracket.
The catch: you can’t touch that money penalty-free until age 59½. So this strategy works best if you’re truly saving for retirement, not trying to avoid taxes on money you need now. But if retirement savings was on your to-do list anyway, this is the time to prioritize it and get the tax benefit.
The common mistake: Waiting until January of next year to increase your 401(k) contribution. If you do that, you’ve wasted the whole previous year. Start or adjust contributions now so they’re taken from paychecks through the end of this calendar year.
Contribute to a Traditional IRA or Backdoor Roth
If you don’t have a 401(k), or if you’ve maxed one out, a traditional IRA is your next move.
You can contribute up to $7,000 to a traditional IRA in 2024 (or $8,000 if you’re 50+), and if you don’t have access to a workplace retirement plan, that contribution is fully tax-deductible. That’s a direct reduction in your taxable income.
There’s an income phase-out if you do have a 401(k) at work, so check the IRS rules for your income level. But even partial deductions help.
For higher earners who phase out of traditional IRA deductions, the backdoor Roth becomes important. It’s not a tax deduction this year, but it lets you contribute to a Roth IRA and reduce taxes on decades of future growth. That’s a different strategy, but it’s legal and often worth consulting a tax pro about.
The deadline for IRA contributions for a given tax year is usually April 15 of the following year. So you have breathing room, but don’t wait—get money in the door now so it counts for this year.
Claim the Saver’s Credit (If You Qualify)
Here’s one almost nobody uses: the Saver’s Tax Credit.
If you earn under $68,250 (single) or $136,500 (married filing jointly), and you contribute to a 401(k), IRA, or other retirement plan, you might qualify for a credit of 10–50% of your contribution. That’s free money from the government, not just a deduction.
The income limits are generous. If you’re under them and you’re already thinking about retirement savings, this is a bonus nobody talks about. You claim it when you file your tax return.
Run the numbers on Form 8880 when tax time comes, or mention it to a tax preparer now. It’s one of the quietest ways to knock money off your tax bill.
Use Your HSA Like a Retirement Account
If you have a high-deductible health plan (HDHP) through work, you can open and contribute to a Health Savings Account (HSA).
The magic: HSA contributions are tax-deductible, the money grows tax-free, and you can withdraw it tax-free for qualified medical expenses. Many people use it just as a checking account for doctor visits, but here’s the real move—if you have the cash to pay for medical expenses out of pocket, you can let the HSA grow like an investment account.
For 2024, you can contribute up to $4,150 (individual coverage) or $8,300 (family coverage). That’s another $4,000–$8,000 off your taxable income. And unlike a 401(k), you can withdraw the money anytime after age 65 for any reason—it just becomes taxable income at that point, like a traditional IRA.
If you’re young and healthy and rarely use medical care, max this out. It’s one of the best-kept tax moves in America.
Bunch Charitable Donations for Larger Deductions
If you itemize deductions on your tax return (instead of taking the standard deduction), charitable contributions can add up fast.
Here’s the catch: the standard deduction is $14,600 (single) or $29,200 (married filing jointly) in 2024. If your itemized deductions don’t beat that, you get no tax benefit from donations.
Many people solve this with bunching: instead of giving $5,000 every year to charity, you give $10,000 in one year and nothing the next. That year, your itemized deductions spike above the standard deduction, and you get the tax benefit on both the donation and your other deductions (mortgage interest, property taxes, state income taxes up to $10,000).
You don’t lose the tax benefit of giving—you just concentrate it in the years it actually helps you. Donor-advised funds make this easier: you fund the DAF one year (and deduct it), then distribute the money to charities over several years.
Deduct Business Losses and Home Office Expenses
If you have any self-employment income—a side hustle, freelance work, rental property—you’re missing out if you’re not claiming legitimate business deductions.
The rules here are strict, but they work: rent or mortgage interest, utilities, office supplies, equipment, mileage, professional fees, software subscriptions. If you’re self-employed and you work from home, a home office deduction (either simplified at $5 per square foot or actual expenses) can add up.
Keep receipts and records. The IRS is pickier about these than standard deductions, but if your expenses are real and documented, they directly reduce your business income and thus your taxable income.
The common mistake: Not separating business and personal expenses. Open a separate bank account and credit card for your business. It makes tax time simple and defensible.
Harvest Capital Losses to Offset Gains
If you have investments and one of them lost value, you can sell it at a loss and use that loss to offset investment gains.
This is called tax-loss harvesting, and it’s completely legal and smart. If you sold a stock for a $5,000 gain, but another investment lost $3,000, you only report $2,000 in capital gains. The remaining loss ($1,000) can even offset up to $3,000 of ordinary income in a given year.
This works year-round, but year-end is peak harvesting season. Review your portfolio, find investments underwater, and sell them if you weren’t planning to hold them anyway. Immediately buy a similar investment to stay in the market. (Just wait 30+ days before buying back the same security, or the wash-sale rule voids the deduction.)
The downside: you realize a loss, which stings psychologically. But taxes are real costs, and avoiding them legally is smarter than holding a loser out of stubbornness.
Start That Side Business (Even If It’s Small)
If you have a hobby or skill that makes money—writing, photography, tutoring, consulting—it might qualify as a business, not just hobby income.
Once it’s a business, you get to deduct expenses. A hobby gives you no deductions. The IRS looks at whether you’re trying to profit (business) or just having fun (hobby), but the bar is low if you have any income and structure.
This only works if there’s real income and real expenses, but it’s a legitimate way to offset earnings: earn $10,000 from freelance work, deduct $3,000 in equipment and software, and only report $7,000 of taxable income.
Make Your Moves Before December 31st
The biggest advantage to acting now is timing. Tax law lets you make certain moves only in the calendar year they apply to. Maxing a 401(k), funding an HSA, making charitable donations—all of these work only for the year you do them. January 1st, you start fresh.
If you wait until January to decide “I should have done this,” it’s too late. Contribution deadlines (except IRAs) are December 31st.
The IRS gives you legal tools to reduce your tax bill. Using them isn’t clever or risky—it’s exactly what the tax code is designed for. The only mistake is knowing about these moves and not acting.
Pick one strategy from this list and implement it before the year ends. If you have a 401(k), bump up your contribution rate. If you don’t, open and fund a traditional IRA. If you’re self-employed, audit your deductions and make sure you’re claiming everything you’re entitled to. A single move could save you hundreds or even thousands in taxes.
Which of these strategies applies most to your situation—and which one will you tackle first?
