Year-End Tax Planning Tips With 100 Days Left in 2026

Patrick Campbell | Sep 22 2026 15:00

As the last 100 days of 2026 begin, this is an ideal moment to revisit your personal tax situation. The final quarter of the year often brings meaningful opportunities to fine‑tune your tax outlook, strengthen cash flow, and reduce the risk of unexpected surprises when tax filing season arrives.

Most people wait until January or February to think about taxes, but reviewing key items before December 31 can make a noticeable difference in your results. Whether you earned additional income, adjusted your savings, or navigated a major life event, a quick assessment now can help set the stage for a smoother experience when it is time to file.

The good news is that effective year-end planning does not need to feel overwhelming. By focusing on a few important areas, you can get a clearer sense of where you stand and spot opportunities that may positively impact your 2026 tax return.

Review Tax Withholding and Estimated Payments

One of the most essential steps to take before the year ends is reviewing your current tax withholding and estimated tax payments. Even small adjustments during the year can shift your tax liability in ways you may not expect.

Major changes—such as a new employer, additional freelance income, investment gains, or a significant personal milestone—can influence how much tax you owe. If your withholding no longer reflects your actual income, you could end up with an unexpected bill when you file.

Setting aside time to evaluate these payments now may help you make adjustments and avoid surprises when filing season arrives.

Evaluate Side Income and 1099 Reporting

More people than ever are earning income outside of their primary job. Freelancers, consultants, gig workers, online sellers, and individuals receiving payments through digital platforms may all generate taxable income that requires 1099 reporting.

If you earned side income in 2026, now is a great time to review your records. Tracking revenue and related expenses before year-end can help you stay organized and better understand what you may owe.

A quick self-employment review can also help identify legitimate deductions and reduce the possibility of complications when it is time to file your return.

Increase Retirement Contributions Before December 31

Retirement contributions continue to play a valuable role in both long-term planning and immediate tax savings. Adding more to eligible retirement accounts may help reduce your taxable income while helping you build stronger financial security.

If you are age 50 or older, you may qualify for catch-up contributions that allow you to save even more before the year ends. These additional contributions can increase your tax advantages for 2026.

Recent legal changes have also expanded certain contribution options for individuals in their early 60s, making year-end a particularly strategic time for those nearing retirement to review their plan.

Consider Whether a Roth IRA Conversion Makes Sense

Year-end can also be an appropriate time to consider a Roth IRA conversion. Shifting part of a traditional IRA to a Roth IRA typically creates taxable income in the year of conversion, but qualified withdrawals later on may be tax-free.

For taxpayers experiencing a lower-income year or those thinking ahead toward future retirement distributions, reviewing whether a conversion aligns with long-term goals may be beneficial.

Understanding the potential impact before December 31 can help you determine whether this strategy fits into your broader financial plan.

Review Education and Dependent Care Tax Benefits

Families with dependents or college students should spend a moment reviewing potential education and dependent care tax benefits as the year winds down.

If you or a dependent is enrolled in higher education, paying certain qualifying expenses before year-end may help you make full use of available education-related tax credits.

Parents who incurred daycare, after-school program fees, summer day camp costs, or similar qualifying expenses may also benefit from revisiting their records. Beginning in 2026, expanded Child and Dependent Care Credit provisions make this an especially important area to review before tax season begins.

Maximize HSA and FSA Opportunities

Health Savings Accounts (HSAs) and Flexible Spending Accounts (FSAs) can provide meaningful tax advantages, but they are often overlooked until the very end of the year.

Before the calendar turns, review your account balances, contribution limits, and any eligible medical expenses you may be able to apply. Depending on your circumstances, there may still be an opportunity to take advantage of remaining HSA or FSA benefits.

A brief review now can help ensure you're using these accounts in the most beneficial way.

Explore Charitable Giving Strategies

Charitable giving is a long-standing part of year-end tax planning for many individuals.

Starting with the 2026 tax year, the One Big Beautiful Bill Act allows taxpayers who take the standard deduction to potentially deduct certain cash donations. Because of this change, reviewing your charitable contributions may be worthwhile even if you do not expect to itemize.

Taxpayers who are close to itemizing may also want to determine whether consolidating charitable contributions into a single year could increase the tax benefit of their giving strategy.

Review Required Minimum Distributions and Beneficiary Information

Contributions are only one part of retirement planning. Individuals age 73 or older generally must take required minimum distributions (RMDs) from certain accounts each year.

Failing to take the correct amount can result in penalties, making it important to assess account balances and distribution requirements well before the end of the year.

Year-end is also a practical time to update beneficiary designations on retirement plans, life insurance, and other financial accounts. Events such as marriage, divorce, childbirth, or loss of a loved one may require updates to ensure your accounts accurately reflect your wishes.

Get Organized Ahead of Tax Season

One of the simplest yet most helpful steps you can take right now is getting organized. Pull together receipts, charitable donation acknowledgments, bank statements, business-related documents, and other tax records while they are still easy to find.

Preparing early can make tax filing quicker and less stressful—and you may even uncover deductions or credits that could be missed when pulling things together at the last minute.

Although the end of the year can fill up quickly, there is still time to act on valuable planning opportunities. Even small steps taken now may help improve your tax outlook and reduce stress once filing season begins.

If you would like support reviewing these year-end planning ideas or want help getting ready for tax season, our team is here to assist. We are happy to walk through your options and help you put together a plan that aligns with your financial goals.