How to Reduce Tax Legally: 7 Strategies I've Used With 600+ Clients

An HSA is the only triple-tax-advantaged account: contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. For 2025, you can contribute up to $4,300 for self-only or $8,600 for family coverage.

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   Enroll in a high-deductible health plan (HDHP) — To open an HSA, you must have an HDHP. During open enrollment, choose a plan that qualifies. For 2025, an HDHP has a minimum deductible of $1,600 for self-only or $3,200 for family. Check with your HR or insurance broker.
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   Open an HSA through your employer or a brokerage — Many employers offer HSAs through a provider like Fidelity or HealthEquity. If not, open one at a brokerage like Fidelity or Lively. Avoid HSAs with monthly fees. Compare options at hsasearch.com.
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   Max out your HSA contribution — Set up payroll deductions to contribute the maximum. If you're 55+, you can add an extra $1,000 catch-up contribution. Contributions reduce your W-2 income, so you save on federal, state, and FICA taxes.
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   Pay medical expenses out-of-pocket — Don't use the HSA to pay current medical bills. Instead, pay with cash and keep receipts. Let the HSA grow tax-free. You can reimburse yourself at any time in the future — even decades later — for qualified expenses.
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   Invest HSA funds for long-term growth — Once your HSA balance exceeds a few hundred dollars, invest it in low-cost index funds. Many HSA providers offer investment options. Avoid leaving too much in cash — inflation will erode its value.

Tax credits reduce your tax bill dollar-for-dollar — far more valuable than deductions. Common credits include the Earned Income Tax Credit (up to $7,830 for 2024), Child Tax Credit (up to $2,000 per child), and education credits (up to $2,500 for the American Opportunity Credit).

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   Check your eligibility for the Earned Income Tax Credit (EITC) — The EITC is for low-to-moderate-income workers. For 2024, the income limit is $59,899 for a married couple with three or more children. Use the IRS EITC Assistant tool to check. Many people who qualify don't claim it — don't be one of them.
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   Review the Child Tax Credit — For each qualifying child under 17, you can claim up to $2,000. The credit is partially refundable (up to $1,600 per child in 2024). Ensure you have Social Security numbers for each child. If your income is too high, you may be phased out.
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   Claim education credits if you or a dependent is in school — The American Opportunity Credit covers the first four years of college and gives up to $2,500 per student. The Lifetime Learning Credit is for any level of post-secondary education, up to $2,000 per return. You cannot claim both for the same student.
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   Look into the Saver's Credit — If you contribute to a retirement account and your income is below certain thresholds (for 2024, $76,500 for married filing jointly), you may qualify for a credit of up to 50% of your contributions, up to $1,000 ($2,000 for married couples).
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   Use tax software to find all credits — Good tax software like TurboTax or H&R Block will ask you questions to identify credits. Don't skip questions. Answer honestly and completely. If you're unsure about eligibility, consult the IRS Publication 970 (Tax Benefits for Education) or a professional.

Itemizing allows you to deduct specific expenses like mortgage interest, state and local taxes (SALT), charitable donations, and medical expenses. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples. Itemize only if your total deductions exceed those amounts.

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   Calculate your potential itemized deductions — Add up: mortgage interest (Form 1098), property taxes, state income or sales taxes (up to $10,000 SALT cap), charitable donations (cash and non-cash), medical expenses exceeding 7.5% of AGI, and unreimbursed employee expenses (if applicable). Use a worksheet or tax software.
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   Compare to the standard deduction — If your total itemized deductions are less than the standard deduction, you're better off taking the standard deduction. For most people, the standard deduction is higher, especially after the 2018 tax law changes. But if you have significant mortgage interest or large charitable gifts, itemizing may win.
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   Bunch your charitable donations — If your itemized deductions are close to the standard deduction, consider bunching: make two or three years' worth of charitable donations in one year. This pushes you over the threshold, and then you take the standard deduction in the other years. Use a donor-advised fund (like Fidelity Charitable) to facilitate this.
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   Track medical expenses carefully — Medical expenses are deductible only if they exceed 7.5% of your adjusted gross income. Keep all receipts for prescriptions, doctor visits, dental work, glasses, and even mileage for medical travel. If you had a major procedure or long-term care costs, you might qualify.
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   Don't forget non-cash charitable donations — Donating used clothing, furniture, or household items to a qualified charity like Goodwill or Salvation Army is deductible. Use a valuation guide like the IRS Publication 526 or a tool like ItsDeductible. Take photos of items and get a receipt.

Tax-loss harvesting involves selling investments that have lost value to offset capital gains from other sales. You can deduct up to $3,000 in net losses against ordinary income each year, and carry forward unused losses indefinitely.

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   Review your investment portfolio for losses — At least once a year (typically in November or December), review your taxable brokerage accounts for positions that are below your purchase price. Look at cost basis and current value. Focus on funds or stocks you'd be willing to sell and replace.
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   Sell losing positions to realize the loss — Execute the sale before December 31 to use the loss on that year's return. For example, if you have $5,000 in losses and $2,000 in gains, you net $3,000 in losses, which reduces your ordinary income by $3,000.
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   Avoid the wash-sale rule — You cannot buy a substantially identical security within 30 days before or after the sale. If you do, the loss is disallowed. Instead, buy a similar but not identical fund — for example, sell S&P 500 ETF and buy Total Stock Market ETF.
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   Carry forward unused losses — If your net losses exceed $3,000, carry the excess forward to future years. Keep a record in your tax file. You can use carryforward losses to offset future gains and up to $3,000 of ordinary income each year until exhausted.
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   Consider using a robo-advisor for automated harvesting — Robo-advisors like Betterment, Wealthfront, and Vanguard Personal Advisor Services offer automated tax-loss harvesting. They constantly monitor your portfolio and execute trades when opportunities arise. Fees are typically 0.25%–0.40% of assets annually.

If you're self-employed or have a side business, your business structure (sole proprietor, LLC, S-corp) affects your tax bill. Also, ensure you're deducting all eligible business expenses: home office, equipment, software, mileage, and health insurance premiums.

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   Choose the right business entity — Sole proprietors are taxed on all business income. An S-corporation lets you split income into salary (subject to payroll tax) and distributions (not subject to self-employment tax). This can save thousands. However, S-corps require more paperwork. Consult a CPA to see if it's worth it for your income level.
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   Deduct the home office if you work from home — You qualify if you use a portion of your home exclusively and regularly for business. Use the simplified method ($5 per square foot, up to 300 sq ft) or the regular method (actual expenses based on percentage of home used for business). The simplified method is easier but may yield a lower deduction.
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   Track all business expenses meticulously — Use an app like QuickBooks Self-Employed or Expensify to log mileage, supplies, software subscriptions, and meals. Keep receipts. Deductible items include: computer equipment, phone bills (business portion), internet, advertising, professional fees, and travel.
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   Take the Qualified Business Income (QBI) deduction — If your taxable income is below certain thresholds (for 2024, $191,950 for single, $383,900 for married filing jointly), you may deduct up to 20% of your qualified business income. This deduction is available to most pass-through entities (sole props, partnerships, S-corps, LLCs).
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   Consider a retirement plan for your business — SEP IRAs allow contributions up to 25% of net earnings (max $69,000 for 2024). Solo 401(k)s allow employee and employer contributions. These reduce both income and self-employment tax. Set up before year-end to contribute for that year.