What Investments Reduce Your Taxable Income? IRAs, HSAs, Bonds

Several investments and accounts can reduce the income the IRS uses to calculate your federal tax, and the investments that reduce taxable income fall into a few clear buckets: pre-tax retirement accounts, health-related accounts, loss harvesting in a brokerage account, tax-exempt bonds, and deferred-gain funds. A worker who maxes out a 401(k) in 2026 shields $24,500 from federal income tax that year. Add an HSA, a dependent care FSA, and a traditional IRA contribution, and a household can easily keep tens of thousands more off the taxable line.

Workplace Retirement Plans

A 401(k), 403(b), or governmental 457(b) is usually the single biggest tax-reduction tool available to employees. Every dollar you defer comes out of your paycheck before federal income tax is calculated, and your employer reports the reduced figure in Box 1 of your W-2 so the money never appears as taxable wages.1Internal Revenue Service. Common Errors on Form W-2 Codes for Retirement Plans

For 2026, the elective deferral limit is $24,500 across all three plan types.2Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Catch-up contributions now come in tiers:

That four-year window from age 60 to 63 is easy to miss. If you fall inside it, it is the largest salary-deferral opportunity an employer plan offers.

The trade for the upfront deduction is access. Withdrawals before age 59½ generally trigger a 10% additional tax on top of regular income tax, with limited exceptions for hardship, disability, and certain separation scenarios.3Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions

Traditional IRA Contributions

A traditional IRA produces an above-the-line deduction on your Form 1040, so you benefit whether or not you itemize.4Office of the Law Revision Counsel. 26 USC 219 – Retirement Savings For 2026, the contribution limit is $7,500, or $8,600 at age 50 or older. The catch-up amount climbed to $1,100 (from the long-standing $1,000) after SECURE 2.0 added cost-of-living adjustments.5Internal Revenue Service. Retirement Topics – IRA Contribution Limits

How much you can deduct depends on your income and whether you or your spouse is covered by a workplace retirement plan. If neither of you is covered, the full deduction is available at any income. If either of you is covered, the IRS applies income-based phase-out ranges that eliminate the deduction above a certain modified adjusted gross income. These thresholds adjust yearly, so verify the current figures on the IRS deduction-limits page before you file.

You have until the tax filing deadline (typically April 15) to make a contribution that counts for the prior tax year.4Office of the Law Revision Counsel. 26 USC 219 – Retirement Savings Overshoot the limit and the IRS charges a 6% excise tax on the excess for every year it stays in the account.

Spousal IRAs

If one spouse has little or no earned income, the working spouse can fund an IRA in the other’s name. The couple must file jointly, and combined earned income has to equal or exceed the total contributions. Each spouse’s $7,500 (or $8,600) limit applies independently, which lets a one-income household double its IRA deduction.

Self-Employed Retirement Accounts

Self-employed workers and small business owners have access to plans with much higher ceilings than a standard IRA.

SEP IRA

A Simplified Employee Pension IRA allows contributions of up to 25% of net self-employment income, capped at $69,000 for 2026.6Internal Revenue Service. SEP Contribution Limits (Including Grandfathered SARSEPs) Only the employer side contributes, there is no employee salary deferral, and contributions are discretionary, so you can skip a lean year.

Solo 401(k)

A solo 401(k) is for self-employed individuals with no employees other than a spouse. It stacks an employee deferral of up to $24,500 on top of an employer profit-sharing contribution of up to 25% of compensation, with a combined cap of $72,000 for 2026.7Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs The same age-based catch-ups apply, so someone aged 60 to 63 could shelter up to $83,250 in a single year. For high-earning freelancers, this is the most aggressive tax-reduction tool available.

SIMPLE IRA

A SIMPLE IRA fits small businesses with 100 or fewer employees. For 2026, the employee salary reduction limit is $17,000, with a higher $18,100 limit for certain eligible plans under SECURE 2.0.2Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Employers either match dollar-for-dollar up to 3% of compensation or make a flat 2% contribution for all eligible employees. Watch the early withdrawal rule: distributions within the first two years of participation carry a 25% penalty rather than the usual 10%.3Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions

Health Savings Accounts

An HSA offers a triple tax advantage no other account can match: contributions reduce taxable income, investments inside grow tax-free, and withdrawals for qualified medical expenses are never taxed. You must be enrolled in a High Deductible Health Plan to contribute. For 2026, that means a plan with an annual deductible of at least $1,700 for self-only coverage or $3,400 for family coverage, with out-of-pocket maximums no higher than $8,500 and $17,000.8Internal Revenue Service. IRS Notice: 2026 HSA Inflation Adjustments

The 2026 contribution limits are $4,400 for individual coverage and $8,750 for family coverage, with an additional $1,000 catch-up at age 55 or older.8Internal Revenue Service. IRS Notice: 2026 HSA Inflation Adjustments9Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts Contributions made through payroll also escape Social Security and Medicare tax, a benefit retirement accounts don’t offer.10Internal Revenue Service. FAQs for Government Entities Regarding Cafeteria Plans Contributions made outside payroll get claimed on Form 8889.11Internal Revenue Service. About Form 8889, Health Savings Accounts (HSAs)

HSA balances can be invested in stocks, bonds, and mutual funds, so the account can grow substantially over decades. After age 65, withdrawals for any purpose avoid the penalty, though non-medical withdrawals are taxed as ordinary income much like a traditional IRA distribution. Before 65, non-medical withdrawals get hit with income tax and a 20% penalty.12Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans

You can also move money from a traditional IRA to an HSA once in your lifetime through a qualified HSA funding distribution. The transfer counts against your HSA contribution limit for the year, must go trustee-to-trustee, and requires you to stay enrolled in an HDHP for 12 months after the transfer. Drop HDHP coverage inside that window and the rollover becomes taxable, plus a 10% additional tax.13Internal Revenue Service. Instructions for Form 8889

Flexible Spending Accounts

FSAs reduce taxable wages through payroll before federal income and FICA taxes are calculated. Two varieties exist, and you can use both at once if your employer offers them.

A healthcare FSA covers medical, dental, and vision costs not paid by insurance. For 2026, employees can contribute up to $3,400, with a maximum carryover of $680 into the next plan year if the employer allows it. The main risk is forfeiting unused funds at year-end if your employer offers neither a carryover nor a grace period, so estimate conservatively.

A dependent care FSA helps pay for childcare or elder care that lets you work. The 2026 household limit is $7,500 for joint filers, or $3,750 if married filing separately.14FSAFEDS. New 2026 Maximum Limit Updates There is no carryover; unspent money at year-end is gone. Both types reduce gross income dollar-for-dollar, so a household using both could shave nearly $11,000 off taxable wages before touching any retirement account.

Tax-Loss Harvesting in a Brokerage Account

Selling an investment at a loss creates a capital loss that offsets capital gains elsewhere in your portfolio. If losses exceed gains for the year, up to $3,000 of the remaining net loss reduces ordinary taxable income ($1,500 if married filing separately).15Office of the Law Revision Counsel. 26 USC 1211 – Limitation on Capital Losses Losses beyond that cap carry forward indefinitely to future years.16Internal Revenue Service. Topic No. 409, Capital Gains and Losses

The wash sale rule is the trap to watch. If you buy a substantially identical security within 30 days before or after the sale, the IRS disallows the loss.17Office of the Law Revision Counsel. 26 USC 1091 – Loss From Wash Sales of Stock or Securities Switching into a fund that tracks a different index, or into a competitor’s stock in the same industry, generally sidesteps the rule.

The $3,000 cap against ordinary income is modest, but the real leverage is pairing losing positions with winners in the same year to net them against each other with no dollar limit.

Municipal Bonds

Interest from bonds issued by state and local governments is generally excluded from federal gross income.18Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds Unlike corporate bond interest, which lands on your return as ordinary income, muni interest never raises your adjusted gross income. Keeping AGI lower can also help you qualify for income-dependent credits and avoid surcharges like the net investment income tax.

Muni bonds pay lower stated yields than comparable taxable bonds, but after-tax returns are often better for investors in higher brackets. To compare, divide the muni yield by (1 minus your marginal rate). A 4% muni yield for someone in the 32% bracket is equivalent to a 5.88% taxable yield. Investors in the 10% or 12% brackets usually come out ahead with taxable bonds. One caveat: certain private activity bonds can be subject to the Alternative Minimum Tax, so check the status of any specific issue before buying.

Qualified Opportunity Zone Investments

The Qualified Opportunity Zone program lets investors defer capital gains tax by reinvesting a realized gain into a Qualified Opportunity Fund within 180 days of the sale that produced the gain.19Office of the Law Revision Counsel. 26 USC 1400Z-2 – Special Rules for Capital Gains Invested in Opportunity Zones These funds invest in designated low-income communities, and the tax breaks are built to encourage long holding periods.

The program was restructured in 2025 when the One Big Beautiful Bill Act repealed the original sunset and reset the incentives. Under the original rules, deferral on reinvested gains was scheduled to end on December 31, 2026, with partial basis step-ups at five and seven years. Those rules still apply to investments made through the end of 2026, though the short remaining deferral window limits their practical value for new capital this year.

Starting January 1, 2027, a rolling five-year deferral period runs from the date of each investment rather than a fixed cutoff. Hold for five years and basis in the deferred gain increases by 10%. The headline benefit is unchanged: hold a Qualified Opportunity Fund investment for at least ten years and any appreciation in the fund itself is permanently excluded from tax.

Investors report deferred gains and fund holdings annually on Form 8997, and make the deferral election on Form 8949 for the year of the original sale.20Internal Revenue Service. About Form 8997, Initial and Annual Statement of Qualified Opportunity Fund (QOF) Investments The reporting is strict enough that most investors should bring in a tax professional before committing.