Five mid-year tax moves that pay off by December
By July, most tax-saving opportunities for the year are still open — but the window narrows every month. Here are five strategies worth revisiting now.
Most tax conversations happen in March or April, when there's nothing left to do but file. By then, the year is already finished. The decisions that actually move your tax bill — funding accounts, timing transactions, structuring income — had to happen by December 31. Mid-year is the sweet spot: you have enough information about your income to plan accurately, and enough time left to act.
Here are five high-impact moves to put on your calendar between now and year-end.
1. Top up your retirement contributions
The 401(k) elective deferral limit for 2025 is $23,500 (with an additional $7,500 catch-up if you're 50 or older, plus a "super catch-up" of $11,250 for those aged 60–63). The IRA limit is $7,000 ($8,000 with catch-up). Maxing out a 401(k) at the 24% federal bracket alone saves $5,640 in current-year tax — and that doesn't count state savings or future growth.
If you're behind on contributions, mid-year is the time to bump up your payroll deferral so you arrive at December 31 fully funded. Going from 6% to 15% of salary in July is a much smaller cash-flow hit than waiting until November and trying to catch up in two paychecks.
2. Harvest losses while they're available
Tax-loss harvesting means selling investments that are down to lock in capital losses, which offset current-year capital gains and up to $3,000 of ordinary income (with the remainder carried forward indefinitely). It's one of the few legitimate ways to convert a losing position into a real tax benefit.
Two cautions:
- Watch the 30-day wash-sale rule. If you buy back the same — or "substantially identical" — security within 30 days before or after the sale, the loss is disallowed. Buying a similar but not identical fund is the workaround most investors use.
- Don't let tax tail wag the investment dog. Only harvest losses if you'd otherwise want to rebalance or trim the position anyway. Selling a great long-term holding just for a tax deduction is rarely worth it.
3. Consider a Roth conversion
Converting traditional IRA dollars to a Roth IRA means paying ordinary income tax now in exchange for tax-free growth and tax-free withdrawals later (after age 59½ and a 5-year holding period). Conversions make the most sense in years when your taxable income is unusually low — a sabbatical, an early-retirement gap year before Social Security and RMDs kick in, or a year with large business losses.
The math is simple: pay tax now at a lower rate, avoid paying it later at a higher rate. The tricky part is sizing the conversion so it doesn't push you into the next bracket or trigger Medicare IRMAA surcharges. Mid-year is when we can model this with reasonable accuracy.
4. Bunch your charitable giving
With the standard deduction at $30,000 for joint filers in 2025, most households no longer itemize — which means routine charitable giving doesn't actually reduce taxes. The fix is "bunching": consolidating two or three years of donations into a single year so the total clears the standard-deduction threshold and itemizing pays off.
The cleanest way to do this is through a donor-advised fund (DAF). You contribute (and deduct) a lump sum in one year, then distribute the money to your chosen charities over the following years. The deduction is taken when you fund the DAF, not when you grant from it.
If you're 70½ or older, a qualified charitable distribution (QCD) from your IRA — up to $108,000 in 2025 — counts toward your required minimum distribution but doesn't show up as taxable income. For older filers who don't itemize, a QCD is almost always more efficient than writing a check.
5. For business owners: revisit Section 179 and bonus depreciation
If you've been planning to buy equipment, vehicles, or other capital assets for your business, the timing of that purchase matters. Section 179 lets you immediately expense up to $1.25 million of qualifying property in 2025 (with a phase-out beginning at $3.13 million in total purchases). Bonus depreciation lets you take an additional 40% of the cost of qualified property placed in service in 2025 (down from 60% in 2024 and scheduled to step down further unless extended).
If you're going to make the purchase anyway and you have the income to absorb the deduction, accelerating it into 2025 typically beats deferring to 2026. But "place in service" is the key phrase: the asset has to be ready and available for its intended use by December 31, not just ordered.
Don't forget: adjust your withholding
One bonus item that's not a "tax-saving" move so much as a penalty-avoidance one. If you've had a large income event this year — a bonus, vested equity, a real-estate sale, an inheritance — you may be under-withheld. The IRS charges interest (currently around 8% annualized) on underpayments. Either bump up your W-2 withholding for the rest of the year or send in an estimated tax payment to stay inside the safe harbor (100% of last year's tax, or 110% if your AGI exceeded $150,000).
The bottom line
Most tax savings come from a few well-timed decisions, not from finding clever deductions in April. A 90-minute mid-year planning conversation — with your projected income for the year, your current contributions, and the major decisions you're considering — typically uncovers more than enough opportunity to justify the time.
If you'd like to schedule a planning session, get in touch. We'll model the year and identify which of these moves applies to your situation.
This article is general information, not personalized tax advice. Limits, thresholds, and rules change every year. Always consult a tax professional before acting on any strategy.