How to Bunch Deductions and Save Thousands on Your Taxes in 2026

Here is one of the most frustrating situations in personal finance: you donate generously to charity, pay significant medical bills, and write a check for your property taxes — yet you still end up claiming the standard deduction because your itemized deductions fall just short.

You are not doing anything wrong. The math simply does not work in your favor that year. But what if you could time those same expenses so the math does work — every other year?

That is exactly what deduction bunching does. It is a perfectly legal, surprisingly simple tax planning strategy that lets middle-income and upper-middle-income taxpayers shift deductible expenses between years so they can itemize when it counts and claim the standard deduction when it does not. The result? Thousands of dollars in tax savings over time, without spending a single extra penny.

Let us walk through how it works, who benefits the most, and exactly how to put this strategy into action for your 2026 and 2027 tax planning.

Why Most Taxpayers Get Stuck in the "Deduction Gap"

Before the Tax Cuts and Jobs Act (TCJA), roughly 30 percent of taxpayers itemized their deductions. After the standard deduction nearly doubled, that number plummeted to around 10 percent. The vast majority of filers now take the standard deduction every single year.

For 2026, the standard deduction is approximately:

• $15,000 for single filers
• $30,000 for married filing jointly
• $22,500 for head of household

(Check IRS.gov for exact 2026 figures, as these amounts are adjusted annually for inflation.)

Here is where the problem shows up. Say you are a married couple with the following annual deductible expenses:

Deduction	Amount
State and local taxes (SALT)	$10,000 (at the cap)
Mortgage interest	$9,000
Charitable donations	$6,000
Total itemized	$25,000

Your itemized deductions total $25,000, but the standard deduction is $30,000. You take the standard deduction, and that $25,000 in real expenses gives you zero additional tax benefit. Year after year, you are stuck in this gap — too many deductions to feel good about ignoring them, too few to actually use them.

This is the deduction gap, and bunching is how you escape it.

How Deduction Bunching Works: The Core Strategy

The idea behind bunching is straightforward: instead of spreading your deductible expenses evenly across every year, you concentrate (or "bunch") as many as possible into a single year so your itemized deductions exceed the standard deduction threshold. Then, in the alternate year, you minimize those expenses and claim the standard deduction.

Here is that same couple using the bunching approach:

Year One: The "Bunching" Year

Deduction	Amount
State and local taxes (SALT)	$10,000
Mortgage interest	$9,000
Charitable donations (two years' worth)	$12,000
Prepaid medical expenses or elective procedures	$5,000
Total itemized	$36,000

Now they itemize and deduct $36,000 — that is $6,000 above the standard deduction.

Year Two: The "Standard Deduction" Year

Deduction	Amount
State and local taxes	$10,000
Mortgage interest	$9,000
Charitable donations	$0 (already gave last year)
Total itemized	$19,000

They take the $30,000 standard deduction instead.

The two-year total deductions: $36,000 + $30,000 = $66,000.

Without bunching, they would have claimed the standard deduction both years: $30,000 + $30,000 = $60,000.

That extra $6,000 in deductions, at a 22 percent marginal tax rate, saves them $1,320 in federal taxes over the two-year cycle. At a 24 percent bracket, the savings jump to $1,440. And that is a conservative example — taxpayers with higher SALT obligations, larger charitable intentions, or significant medical expenses can save considerably more.

Which Deductions Can You Bunch (And Which You Cannot)

Not every deductible expense is flexible enough to shift between years. Here is a breakdown of what you can and cannot control.

Deductions That Are Easy to Bunch

Charitable contributions are the single most powerful bunching tool. You control when you write the check, transfer the stock, or make the donation. Doubling up charitable giving one year and pulling back the next is the foundation of most bunching strategies.

Medical and dental expenses can sometimes be timed. Elective procedures, dental work, new glasses, orthodontia — if you have flexibility on when to schedule and pay, you can concentrate these expenses. Remember, medical expenses are only deductible to the extent they exceed 7.5 percent of your adjusted gross income (AGI), so bunching here has an especially high payoff because clearing that floor in one big year is far easier than trying to clear it in two modest ones.

Miscellaneous professional fees and tax preparation costs may offer some timing flexibility depending on current law.

Deductions That Are Harder to Bunch

State and local taxes (SALT) are capped at $10,000 regardless of how much you pay, which limits bunching potential. However, if you normally pay less than the cap, you may be able to prepay a property tax installment to push yourself closer to the limit in your bunching year.

Mortgage interest is largely fixed by your payment schedule. You generally cannot bunch this without refinancing or making extra payments, and the tax benefit of doing so rarely justifies the cost.

A Word of Caution

Never let the tax tail wag the dog. Only bunch expenses that you would incur anyway. Donating an extra $6,000 to charity solely for a $1,320 tax break means you are still out $4,680. The strategy works best when you are redirecting the timing of expenses you have already planned — not creating new ones.

The Donor-Advised Fund: A Bunching Power Tool

If charitable giving is the backbone of your bunching strategy, a donor-advised fund (DAF) is the tool that makes it effortless.

A DAF works like a charitable savings account. You make a large, tax-deductible contribution to the fund in your bunching year, then distribute grants to your favorite charities over the following months or years. The key tax advantage: you get the full deduction in the year you contribute to the DAF, even though the charities receive the money later.

Here is how this looks in practice:

1. Year one: You contribute $15,000 to a donor-advised fund at Fidelity Charitable, Schwab Charitable, or Vanguard Charitable. You claim the $15,000 deduction this year.
2. Over the next 24 months: You recommend grants of $2,500, $5,000, or whatever amount you choose to the nonprofits you support, on your own schedule.
3. Year two: You make no charitable contributions and claim the standard deduction.

Your charities receive the same total support. Your giving pattern stays consistent. But your tax bill drops.

Most major brokerages offer DAFs with no minimum ongoing balance and very low fees. If you are bunching more than $5,000 in charitable deductions, a DAF is almost always worth setting up.

Contributing Appreciated Stock to a DAF

For an even bigger tax win, contribute appreciated stock or mutual fund shares instead of cash. You get a deduction for the full fair market value of the shares and you avoid paying capital gains tax on the appreciation. If you hold shares with significant unrealized gains, this is one of the most tax-efficient moves in the entire tax code.

For example, say you bought $5,000 of stock five years ago and it is now worth $12,000. If you sell and donate the cash, you owe capital gains tax on the $7,000 gain — potentially $1,050 or more in federal tax alone. If you donate the shares directly to a DAF, you deduct the full $12,000 and pay zero capital gains tax.

How to Build Your Personal Bunching Calendar

The best bunching strategies are not improvised in December. They are mapped out well in advance. Here is a step-by-step process to build your own plan.

Step 1: Calculate Your Baseline Itemized Deductions

Pull out last year's tax return and list every itemized deduction you claimed or could have claimed. Include:

• SALT (property tax + state income or sales tax, up to $10,000)
• Mortgage interest
• Charitable donations
• Medical expenses above the 7.5 percent AGI threshold

This gives you your baseline. How close are you to the standard deduction?

Step 2: Identify Flexible Expenses

Which of those deductions can you realistically shift by 12 months? For most people, charitable giving and elective medical/dental expenses offer the most flexibility. Write down the dollar amounts you could shift.

Step 3: Model Both Years

Create a simple spreadsheet or use a tax projection tool to estimate your total itemized deductions for two scenarios:

• Bunching year: All flexible expenses concentrated, plus your fixed deductions
• Off year: Only fixed deductions remain

If your bunching year total exceeds the standard deduction by a meaningful amount (at least $3,000 to $5,000), the strategy is worth pursuing.

Step 4: Set a Calendar

Decide which year will be your bunching year and which will be your standard deduction year. Mark key deadlines:

• January – March (bunching year): Make your DAF contribution or large charitable gifts early so you do not forget
• April – September: Schedule elective medical or dental work
• October – November: Prepay your January property tax installment if it helps you clear the threshold
• December: Review your numbers one final time and make any last adjustments

Step 5: Reassess Annually

Life changes. Income fluctuates. Tax law evolves. Review your bunching plan each fall so you can make adjustments before the year closes.

Real-World Example: The Reyes Family Saves $3,200 Over Two Years

Let us put this all together with a detailed example.

The Reyes family files married filing jointly. Their combined AGI is $165,000. Here are their typical annual deductible expenses:

• SALT: $10,000
• Mortgage interest: $8,500
• Charitable giving: $7,000
• Medical expenses: $4,000 (but only amounts above 7.5% of AGI = $12,375 are deductible, so $0 deductible)

Without bunching: Their itemized total is $25,500 — below the ~$30,000 standard deduction. They take the standard deduction both years. Two-year total: $60,000.

With bunching:

• Year one: They contribute $14,000 to a donor-advised fund (two years of giving), schedule $9,000 of dental work they have been postponing (clearing the 7.5 percent floor by $625), and prepay one property tax installment. Itemized total: $10,000 (SALT) + $8,500 (mortgage) + $14,000 (charity) + $625 (medical above floor) = $33,125. They itemize.
• Year two: Only SALT and mortgage interest remain. Itemized total: $18,500. They take the $30,000 standard deduction.

Two-year deduction total: $33,125 + $30,000 = $63,125.

Extra deductions compared to no bunching: $3,125. At the 24 percent marginal rate, that is $750 in federal tax savings per two-year cycle. Over a decade, that adds up to roughly $3,750 — and that is before factoring in the capital gains tax they avoided by donating appreciated stock to the DAF.

If they have a higher-income year (bonus, stock vesting, freelance project), the savings climb even higher because the additional deductions offset income taxed at a higher marginal rate.

Common Mistakes to Avoid

Bunching is simple in concept, but a few pitfalls can erode your savings.

Forgetting about state taxes. Your federal bunching strategy affects your state return too. In some states, you must itemize on the state return if you itemize federally (and vice versa). Check your state's rules before committing to a plan.

Bunching when your income varies wildly. If your income swings dramatically between years, you may want to bunch deductions in the high-income year rather than sticking to a rigid every-other-year schedule. The value of a deduction depends on your marginal rate — a $10,000 deduction saves $2,400 at the 24 percent bracket but $3,200 at the 32 percent bracket.

Ignoring the AMT. Taxpayers subject to the Alternative Minimum Tax may find that certain deductions (especially SALT) are disallowed under AMT calculations. If your income puts you in AMT territory, run the numbers carefully or consult a tax professional before bunching.

Procrastinating until December. The best bunching strategies start in January. Waiting until the last week of the year limits your options and increases the chance of errors.

Over-contributing to charity for the deduction. Remember, a tax deduction reduces your tax bill by your marginal rate times the deduction amount — it does not eliminate the cost. Only give what you genuinely want to give.

Start Building Your Bunching Plan Today

Deduction bunching is not a loophole. It is not aggressive. It is simply smart timing — the same way you might wait for a sale to buy something you were already planning to purchase.

If your annual itemized deductions fall within roughly $5,000 to $15,000 of the standard deduction, you are in the sweet spot for this strategy. The further below the threshold you are, the more you need to bunch to make it work. The closer you are, the less effort it takes to push yourself over the top.

Here is your action plan for this week:

1. Pull up your 2025 tax return and add up your potential itemized deductions
2. Compare that total to the 2026 standard deduction for your filing status
3. Identify which expenses you can shift into a single year
4. Open a donor-advised fund if charitable giving will be a major part of your strategy
5. Talk to your tax professional about coordinating bunching with your overall tax plan

The families who save the most on taxes are not the ones who earn the most — they are the ones who plan the best. Deduction bunching is one of the simplest planning tools available, and once you set it up, it works on autopilot year after year.