The Current Tax Code: Brackets, Deductions, and Credits

The current federal tax code is Title 26 of the United States Code, known as the Internal Revenue Code. It sets seven marginal income tax rates running from 10% to 37%, along with the rules for deductions, credits, payroll taxes, capital gains, and estate and gift taxes. For the 2026 tax year, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly, and the code reflects sweeping changes made permanent by the One, Big, Beautiful Bill Act signed into law on July 4, 2025.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments from the One, Big, Beautiful Bill

What Title 26 Actually Is

Every federal tax obligation traces back to Title 26, the body of law Congress writes and revises.2Office of the Law Revision Counsel. Browse the United States Code – Title 26 Internal Revenue Code That authority comes from the 16th Amendment, which gave Congress the power to tax income “from whatever source derived.”3LII / Legal Information Institute. 16th Amendment, U.S. Constitution The Internal Revenue Service, a bureau of the Treasury Department, collects the taxes and enforces the rules, while Treasury issues regulations explaining how the IRS interprets what Congress passes.

Most people think of Title 26 as the income tax law, but it covers more ground than that. Payroll taxes under the Federal Insurance Contributions Act fund Social Security and Medicare. The code governs estate and gift taxes, excise taxes on goods like fuel and tobacco, and the rules for tax-exempt organizations. Each has its own subtitle within Title 26, with distinct rates, exemptions, and filing requirements.

The Recent Changes That Shape What You File Now

The Tax Cuts and Jobs Act of 2017 reshaped the individual code by lowering rates, nearly doubling the standard deduction, and capping the deduction for state and local taxes at $10,000. Many of those provisions were set to expire after 2025. The One, Big, Beautiful Bill Act, signed July 4, 2025, resolved that uncertainty by making the TCJA’s individual tax rates and higher standard deduction permanent.

The OBBBA also raised the state and local tax deduction cap from $10,000 to $40,000 for 2025 through 2029, lifted the Child Tax Credit from $2,000 to $2,200 per child, pushed the estate tax exemption to $15,000,000, and created a new enhanced standard deduction for taxpayers aged 65 and older. Personal exemptions, which the TCJA had suspended, remain at zero permanently. The 2026 tax code you file under looks meaningfully different from where things stood even two years ago.

2026 Tax Brackets and How Marginal Rates Work

The federal income tax is progressive. There are seven brackets, and only the income within each tier is taxed at that tier’s rate. Earning enough to reach the 22% bracket does not mean all of your income is taxed at 22%. Your first dollars are still taxed at 10%, the next layer at 12%, and so on. This is the most misunderstood feature of the income tax.

For tax year 2026, the brackets for single filers are:

  • 10% on taxable income up to $12,400
  • 12% on $12,401 to $50,400
  • 22% on $50,401 to $105,700
  • 24% on $105,701 to $201,775
  • 32% on $201,776 to $256,225
  • 35% on $256,226 to $640,600
  • 37% on income above $640,600

For married couples filing jointly, the thresholds are roughly doubled:

  • 10% on taxable income up to $24,800
  • 12% on $24,801 to $100,800
  • 22% on $100,801 to $211,400
  • 24% on $211,401 to $403,550
  • 32% on $403,551 to $512,450
  • 35% on $512,451 to $768,700
  • 37% on income above $768,700

A single filer with $80,000 in taxable income in 2026 pays 10% on the first $12,400, then 12% on the portion between $12,401 and $50,400, then 22% on the rest up to $80,000. The effective rate on that income lands well below 22%, even though 22% is the top bracket that applies. The IRS adjusts these thresholds each year for inflation so that rising prices alone do not push you into a higher bracket.4Internal Revenue Service. Federal Income Tax Rates and Brackets

Filing Status

Your filing status decides which set of brackets and which standard deduction apply. The IRS recognizes five: Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse.5Internal Revenue Service. Filing Status Joint filers get bracket thresholds and a standard deduction roughly double the single amounts. Head of Household, for unmarried taxpayers maintaining a home for a qualifying dependent, sits between the two. Married Filing Separately usually produces a higher combined tax bill and requires both spouses to itemize if one does, but it keeps each person’s tax debt separate.6Internal Revenue Service. Topic No. 501, Should I Itemize? The Qualifying Surviving Spouse status is available for two tax years after a spouse’s death if the survivor has a dependent child at home, preserving access to the joint brackets.7Internal Revenue Service. Filing a Final Federal Tax Return for Someone Who Has Died

Standard Deduction and Itemizing for 2026

Deductions reduce the income that gets taxed before the marginal rates hit it. You take either the standard deduction or your total itemized deductions, whichever is larger. For 2026, the standard deduction is $16,100 for single filers or those married filing separately, $32,200 for joint filers and qualifying surviving spouses, and $24,150 for heads of household. Most taxpayers take the standard deduction because the amounts now exceed what most households can itemize.

Enhanced Deduction for Seniors

From 2025 through 2028, taxpayers aged 65 and older can claim an additional $6,000 deduction on top of the regular standard deduction. If both spouses on a joint return qualify, the combined additional amount is $12,000. The benefit phases out for single filers with modified adjusted gross income above $75,000 and joint filers above $150,000.8Internal Revenue Service. Check Your Eligibility for the New Enhanced Deduction for Seniors This is separate from the longstanding additional standard deduction for people who are 65 or older or blind, which still applies.

Common Itemized Deductions

If your eligible expenses beat the standard deduction, you can itemize on Schedule A. The main categories are:

  • Mortgage interest on up to $750,000 of home acquisition debt, or $375,000 if married filing separately.9Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction
  • State and local taxes, capped at $40,000 for 2025 with the cap increasing 1% annually through 2029. The deduction covers state income or sales taxes plus property taxes combined. For taxpayers earning above $500,000, the cap phases down toward $10,000 at 30 cents per dollar above the threshold.
  • Charitable contributions to qualified nonprofits, generally up to 60% of adjusted gross income for cash gifts.10Internal Revenue Service. Charitable Contribution Deductions
  • Unreimbursed medical and dental expenses that exceed 7.5% of adjusted gross income.11Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses

Credits That Reduce Your Tax Bill

Credits are more valuable than deductions of the same size. A $2,000 credit cuts your tax by $2,000. A $2,000 deduction cuts your tax by $2,000 times your marginal rate, which could be as little as $200. Nonrefundable credits can reduce your tax to zero. Refundable credits can pay you a refund even after your liability hits zero.

Child Tax Credit

The Child Tax Credit provides up to $2,200 per qualifying child under 17.12Internal Revenue Service. Child Tax Credit The main credit is nonrefundable, but the Additional Child Tax Credit lets families with little or no tax liability receive up to $1,700 per child as a refund, depending on earned income. Children must have a Social Security number. Phaseout begins at $200,000 of modified adjusted gross income for single filers and $400,000 for joint filers.

Earned Income Tax Credit

The EITC is a fully refundable credit for low- and moderate-income workers. The amount depends on income, filing status, and number of qualifying children. For 2026, the maximum credit for a taxpayer with three or more children is $8,231. Workers without qualifying children can still claim a smaller credit.13Internal Revenue Service. Earned Income and Earned Income Tax Credit (EITC) Tables

American Opportunity Tax Credit

The AOTC covers up to $2,500 per eligible student for qualified higher education expenses in the first four years of post-secondary school. Forty percent of the credit (up to $1,000) is refundable, so students with no tax liability still get some benefit. It covers 100% of the first $2,000 in qualified expenses and 25% of the next $2,000.14Internal Revenue Service. American Opportunity Tax Credit

Capital Gains and Investment Income

Long-term capital gains, from assets held longer than one year, are taxed at preferential rates rather than ordinary income rates. For 2026, the three tiers are:

  • 0% on taxable income up to $49,450 for single filers or $98,900 for joint filers
  • 15% on taxable income from $49,451 to $545,500 single or $98,901 to $613,700 joint
  • 20% on taxable income above $545,500 single or $613,700 joint

Short-term gains on assets held one year or less are taxed at ordinary income rates. Qualified dividends receive the same preferential rates as long-term gains.15Internal Revenue Service. Topic No. 404, Dividends and Other Corporate Distributions High earners also owe an additional 3.8% Net Investment Income Tax on investment income once modified adjusted gross income exceeds $200,000 for single filers or $250,000 for joint filers. Those thresholds are not adjusted for inflation.16Internal Revenue Service. Topic No. 559, Net Investment Income Tax

Payroll and Self-Employment Taxes

If you work for an employer, payroll taxes are split. You and your employer each pay 6.2% for Social Security and 1.45% for Medicare.17Social Security Administration. What is FICA? The Social Security portion applies only to wages up to $184,500 in 2026.18Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Medicare has no wage cap, and an additional 0.9% Medicare surtax applies to earnings above $200,000 single or $250,000 joint.

Self-employed people pay both halves for a combined 15.3% on net self-employment earnings (12.4% Social Security and 2.9% Medicare).19Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) The code lets you deduct the employer-equivalent half (7.65%) when calculating adjusted gross income. The same $184,500 Social Security wage cap and 0.9% Medicare surtax thresholds apply.

Alternative Minimum Tax

The AMT is a parallel calculation designed to ensure taxpayers with large deductions or exclusions still pay a minimum amount. You compute your tax under the regular system and under the AMT, then pay whichever is higher. The AMT disallows certain deductions, including SALT, and applies rates of 26% and 28%.

For 2026, the AMT exemption is $90,100 for single filers and $140,200 for joint filers. It phases out starting at $500,000 for single filers and $1,000,000 for joint filers. The TCJA sharply reduced the number of people hit by the AMT, and the OBBBA made those higher exemption amounts permanent.

Estate and Gift Taxes

The federal estate tax applies to assets at death that exceed the basic exclusion. For 2026, the exclusion is $15,000,000 per individual.20Internal Revenue Service. What’s New — Estate and Gift Tax Married couples can effectively shelter up to $30,000,000 by combining their exclusions through portability. Estates above the exclusion face a top marginal rate of 40%.

The gift tax works alongside the estate tax so that people cannot avoid it by giving everything away first. For 2026, you can give up to $19,000 per recipient per year without filing a gift tax return or using any of your lifetime exclusion. Gifts above that annual amount count against your $15,000,000 lifetime exclusion but do not trigger tax until the exclusion is exhausted.

Filing Deadlines and Extensions

Individual returns for the 2025 tax year are due April 15, 2026.21Internal Revenue Service. Publication 509 (2026), Tax Calendars If you cannot file by then, Form 4868 grants an automatic six-month extension to October 15, 2026.22Internal Revenue Service. Application for Automatic Extension of Time To File U.S. Individual Income Tax Return U.S. citizens living abroad get an automatic two-month extension to June 15 without filing any form.

The extension covers filing, not payment. Taxes owed are still due by April 15, and interest accrues on unpaid balances from that date regardless of when you file. Estimating your liability and paying what you owe by the original deadline is the only way to avoid interest.

Penalties for Getting It Wrong

Consequences scale with the seriousness of the error. An accuracy-related penalty of 20% applies to underpayments caused by negligence or a substantial understatement of income.23Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments Gross valuation misstatements double that to 40%. Fraudulent returns carry a 75% penalty on the underpaid tax.24Office of the Law Revision Counsel. 26 USC 6663 – Imposition of Fraud Penalty

On the criminal side, willful tax evasion is a felony punishable by up to five years in prison and fines up to $100,000 for individuals or $500,000 for corporations.25Office of the Law Revision Counsel. 26 USC 7201 – Attempt to Evade or Defeat Tax Those penalties apply on top of the unpaid tax and any accumulated interest. The gap between a careless math mistake and deliberate evasion is enormous, but even honest errors can draw the 20% accuracy penalty if the understatement is large enough.