PART 2 — The Top Retirement Moves Doctors Should Make Before December 31

November 21, 2025

From the series: Are You Ready for 2026? The Top 20 Year-End Tax Tips to Maximize Your 2025 Deductions

If you’re a physician, year-end retirement planning isn’t optional.
It’s mandatory.
You feel it every fall — the rush, the deadlines, the stress of looking at your contributions and wondering if you “did enough.”

This part of the series makes that simple.
Clear steps.
Clear limits.
Clear actions to take before December 31.

Let’s walk through the moves that actually cut taxes right now.

Retirement Contributions Hit Different for Physicians

Every doctor knows retirement accounts exist.
But most don’t realize how big the gap is between “putting something away” and “using retirement accounts strategically.”

When you’re a high earner, contributions don’t just save for later.
They lower your taxable income today.
They reduce exposure to phaseouts.
They help you prepare for 2026 bracket changes.
And they open the door to more advanced planning.

Year-end is when everything becomes urgent.

1. Max Your 401(k) or 403(b)

This is your baseline move.
Simple.
Predictable.
Powerful.

For 2025, the limits are:

$23,000 employee deferral
$7,500 catch-up at age 50+

If you haven’t hit your number yet, you still have time.

Many hospitals let you adjust your December paycheck contribution.
Many groups allow final catch-up payroll changes.
Some even let you split contributions over your final checks.

If you’re a W-2 physician, this is your simplest win.
And it works every year.

2. Add Employer Profit-Sharing (If You Have It)

Some physicians forget this part.
Your group or practice may allow profit-sharing contributions.
These can push total contributions up to $69,000 (or $76,500 with catch-up).

If you’re in a group practice, ask this directly:
“Do we have profit-sharing, and did I already get mine?”

One small question can uncover thousands in tax savings.

3. Solo 401(k) for 1099 Income

If you earn any 1099 income — telehealth, locums, consulting, expert witness work — this is your biggest move.

A Solo 401(k) lets you make:

Employee contributions (if not already maxed at your W-2 job)
Employer contributions (20% of net 1099 profit)

Even if you already maxed your W-2 plan, you can still contribute the employer side on your 1099 profit.

That’s huge.
Most doctors don’t know they can do this.

If you need a primer before you set one up, start here:
1099 contractor tax guide.

And yes — you can still open your Solo 401(k) before year-end.

4. Cash Balance Plans for High Earners

This is the heavy hitter.
Especially for practice owners, partners, independent specialists, and high-earning 1099 physicians.

A cash balance plan lets you contribute dramatically more than a 401(k).
Often $100,000 to $350,000+ per year depending on age and income.

This is how many surgeons, radiologists, anesthesiologists, and practice owners cut their taxable income by six figures.

It’s not a beginner move.
But if your income is strong — and stable — it can change everything.

To see if your income level supports this, use this guide:
doctor tax-saving strategies.

December 31 is your real deadline.
If you want it for 2025, you can’t push it off.

5. Mega Backdoor Roth (If Your Plan Allows It)

Many physicians don’t know this even exists.
But if your employer’s 401(k) plan allows after-tax contributions and in-plan Roth conversions, you may be able to put tens of thousands more into a Roth every year.

This is especially valuable before 2026, when some Roth planning advantages may tighten.

If your plan allows it, act now.
If you’re unsure, ask HR one simple question:

“Does our 401(k) allow after-tax contributions and in-plan Roth conversions?”

If the answer is yes, you just opened a new door.

6. Backdoor Roth IRA (But Do It Cleanly)

This move still works, but only if you avoid the pro-rata rule.
The rule that ruins everything for doctors.

Here’s the truth:
If you have pre-tax money sitting in an IRA, SEP, or SIMPLE, a backdoor Roth may surprise you with unexpected taxable income.

You need a clean IRA.
You need no pre-tax balance.
Or you need to roll IRA funds into an employer plan before year-end.

December 31 is the cutoff.
So cleanup has to happen now.

Many physicians delay this and lose the window.
Don’t be one of them.

7. HSA Contributions for Physicians with High-Deductible Plans

If you have a family HSA-eligible plan, the 2025 limit is:

$8,300 (family)
$4,150 (self-only)
Plus a $1,000 catch-up if age 55+

HSAs are triple-tax-advantaged.
The best deal in healthcare.
And wildly underused by physicians.

You still have time to contribute for 2025.

8. Coordinate W-2 and 1099 Retirement Plans (If You Have Both)

This is where many doctors make mistakes.
If you have both income types, your retirement limits are still tied together.

But not all parts overlap.

Here’s the simple breakdown:

You only get one $23,000 employee deferral
But you can get multiple employer contributions if you have multiple sources
Solo 401(k) employer contributions only come from 1099 profit
W-2 employer contributions only come from your hospital or group

This is why mixed-income physicians often save the most.
But only if the numbers are coordinated before year-end.

9. Why Year-End Retirement Planning Is Even More Important in 2025

The tax landscape changes in 2026.
Higher brackets.
Tighter deductions.
New limits.
More income exposed to tax.

2025 is the last “pre-2026” planning year.
Every dollar you shelter now hits harder than usual.

This is the year to go strong.

Your Simple Year-End Retirement Checklist

Here’s the short version:

Max your 401(k)
Add profit-sharing if available
Open a Solo 401(k)
Review cash balance eligibility
Execute backdoor Roth steps
Finish mega backdoor Roth if your plan allows
Fund your HSA
Clear IRA balances to avoid the pro-rata rule
Coordinate W-2 and 1099 plans
Re-run your year-end numbers

Just one or two moves here can shape your 2025 return.

FAQ — Retirement Planning for Physicians (2025 Edition)

1. Can I still open a Solo 401(k) before year-end?

Yes.
You can open it in Q4 and still make employer contributions.

2. Are cash balance plans worth it?

Yes if your income supports it.
No if your income isn’t stable.
This one requires planning.

3. Should W-2 doctors do backdoor Roth conversions?

Usually yes.
But only with a clean IRA balance.

4. What if my hospital doesn’t offer profit-sharing?

Then your main move is maxing employee deferrals and using an HSA.

5. Do mixed-income doctors get the biggest advantage?

Often yes.
Because you get multiple layers of contribution options.

Ready to talk strategy? Start here.

Visit contact physiciantaxsolutions.com to schedule a consultation and learn how we can help you take control of your tax strategy today.

This post serves solely for informational purposes and should not be construed as legal, business, or tax advice. Individuals should seek guidance from their attorney, business advisor, or tax advisor regarding the matters discussed herein. physiciantaxsolutions.com assumes no responsibility for actions taken based on the information provided in this post.

Posted in Tax tips and tagged 1099 physician taxes, accountable plan, backdoor Roth IRA, locum tenens taxes, mega backdoor Roth, physician tax deductions, physician tax planning, retirement tax planning, tax advisor for physicians, tax planning for high income earners