As the tax season approaches its final stretch, many individuals find themselves scrambling to maximize their savings before the deadline. Understanding the nuances of last-minute tax deductions can be a game-changer for your 2026 tax return. Whether you’re a seasoned filer or a first-time taxpayer, knowing which deductions you can still claim can significantly impact your financial outcome. From charitable contributions to business expenses, there are several opportunities to reduce your taxable income legally and efficiently. If you’re considering itemizing your deductions and are up against the clock to get your taxes filed, here’s some important information about last-minute deductions you might consider.
A financial advisor could help you with tax planning, as well as other financial planning needs. Speak with an advisor today.
What Is a Tax Deduction?
The U.S. has a progressive income tax system. This means that as your income goes up, you are taxed at a higher percentage. You aren’t taxed on your entire income, though, as some money is deductible from your total taxable income. Most people use what is known as the standard deduction, meaning you deduct a dollar figure determined by the federal government.
For tax year 2026, the standard deduction is $16,100 for single filers and those married but filing separately. It is $32,200 for joint filers and $24,150 for heads of household. For those age 65 and older, the IRS provides an additional standard deduction of $2,050 for single filers and $1,650 for each qualifying spouse in a married couple filing jointly.
Some people, though, choose to itemize their deductions. This takes more time, but if you think you can deduct more than the standard deduction it could save you money. Examples of common itemized deductions include:
- Charitable donations
- Business expenses
- Some medical expenses
- Mortgage interest
- Tax-deferred retirement contributions
Between 2025 and 2028, the government is offering a $6,000 enhanced deduction for seniors (age 65 and older). However, this deduction can be taken whether you itemize or take the standard deduction.
Talk to a tax professional to determine if your unique situation applies to these deductions that might make it advantageous for you to itemize your deductions.
5 Last-Minute Tax Deductions to Consider

If you’re currently preparing your tax returns and still aren’t sure if you should take the standard deduction or go through and itemize, here are some last-minute deductions you may be able to take advantage of that you may not have thought of. These deductions could also push you towards itemizing as the most financially sound course of action:
1. Max Out Tax-Advantaged Accounts
One effective strategy is to maximize contributions to tax-advantaged accounts. These accounts, such as 401(k)s, IRAs, and Health Savings Accounts (HSAs), offer significant tax benefits that can help lower your tax bill. By contributing the maximum allowable amount, you can potentially reduce your taxable income and, consequently, your tax liability. These contributions need to be completed before the April tax deadline.
2. Side Hustle Expenses
If you’ve turned a hobby into a legitimate income-producing activity, you may be able to deduct related expenses. The key distinction is whether the activity is considered a business rather than a hobby. For example, if you regularly sell knitted goods online with the intent to make a profit, expenses like knitting needles, patterns and yarn may be deductible.
However, if the activity is classified as a hobby, those expenses generally cannot be written off. The IRS typically looks at factors such as whether you operate in a businesslike manner, depend on the income and show a consistent effort to make a profit when making this determination, and it may presume your activity is a business if it generates a profit in at least three of the last five years.
Use our income tax calculator to explore how deductions and credits impact your final tax liability.
Income Tax Calculator
Calculate your federal, state and local taxes for the 2025 tax year.
Your 2025 Total Income Taxes
Federal Income & FICA Taxes
State Taxes
Local Taxes
About This Calculator
Our income tax calculator calculates your federal, state and local taxes based on several key inputs: your household income, location, filing status and number of personal exemptions.
How Income Taxes Are Calculated
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First, we calculate your adjusted gross income (AGI) by taking your total household income and reducing it by certain items such as contributions to your 401(k).
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Next, from AGI we subtract exemptions and deductions (either itemized or standard) to get your taxable income. Exemptions can be claimed for each taxpayer.
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Based on your filing status, your taxable income is then applied to the tax brackets to calculate your federal income taxes owed for the year.
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Your location will determine whether you owe local and / or state taxes.
When Do We Update? - We check for any updates to the latest tax rates and regulations annually.
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Assumptions
Deductions
- "Other Pre-Tax Deductions" are not used to calculate state taxable income.
Credits
- The only federal credit automatically calculated is the Savers Credit, depending on your eligibility.
- We do not apply any refundable credits, like the Child Tax Credit or Earned Income Tax Credit (EITC).
- We do not apply state credits in our calculations.
Itemized Deductions
- If itemizing at the federal level, you may need to itemize at the state level too. Some states don't allow itemized deductions, which is accounted for in our calculations.
- When calculating the SALT deduction for itemized deductions, we use state and local taxes, and we assume your MAGI.
- We assume that there is no cap to itemized deductions, if a state allows them.
- We do not categorize itemized deductions (such as medical expenses or mortgage interest), which could be subject to specific caps per state.
Local Tax
- Depending on the state, we calculate local taxes at the city level or county level. We do not include local taxes on school districts, metro areas or combine county and city taxes.
- With the exception of NYC, Yonkers, and Portland/Multnomah County, we assume local taxes are a flat tax on either state taxable income or gross income.
Actual results may vary based on individual circumstances and changes in tax laws or IRS regulations. Estimates provided by this calculator do not guarantee income tax amounts or rates. Past performance is not indicative of future results.
SmartAsset.com does not provide legal, tax, accounting or financial advice (except for referring users to third-party advisers registered or chartered as fiduciaries ("Adviser(s)") with a regulatory body in the United States). Articles, opinions and tools are for general informational purposes only and are not intended to provide specific advice or recommendations for any individual. Users should consult their accountant, tax advisor or legal professional to address their particular situation.
3. Tax Prep Expenses
If you pay for tax preparation, whether it’s hiring a tax accountant or buying a premium version of a service like TurboTax, you can deduct that as well. This likely won’t be a massive change to your taxable income, but if you’re itemizing, every dollar counts.
4. Student Loan Interest
You are probably used to complaining about your student loan debt, but here is a way it can help you. You can deduct up to $2,500 of your student loan interest, so if you’re choosing to itemize and have student loan debt, don’t forget to include this.
5. Utilize Tax-Loss Harvesting
Tax loss harvesting is a strategic approach that can help investors reduce their taxable income by offsetting capital gains with capital losses. This technique involves selling securities at a loss to counterbalance the gains realized from other investments. By doing so, investors can potentially lower their tax liability, making it an attractive option for those looking to optimize their tax situation before the end of the fiscal year.
Bottom Line

Itemizing your tax deductions is an option for getting your tax bill down if you think you can end up taking more than the standard deduction. As the tax deadline approaches, understanding last-minute tax deductions can be a game-changer for maximizing your refund or minimizing what you owe. There are some deductions that are well known, but if you’re choosing to itemize your deductions, don’t lose out on some of the deductions you might not know about.
Tax Planning Tips
- A financial advisor can help you get the best deal on your taxes. Finding a financial advisor doesn’t have to be hard. SmartAsset’s free tool matches you with vetted financial advisors who serve your area, and you can have a free introductory call with your advisor matches to decide which one you feel is right for you. If you’re ready to find an advisor who can help you achieve your financial goals, get started now.
- Get an estimate of your tax bill using SmartAsset’s income tax calculator. This way you can plan ahead and set a budget based on your estimated payment.
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