Why a tax prep workflow matters (especially when April gets chaotic)

Taxes aren’t hard because the math is scary. They’re hard because life is messy. You might have a W-2 job, a 1099 side gig, taxable investments, a backdoor Roth, maybe a rental, maybe a new baby, maybe student loans, and suddenly your “simple return” looks like a small novel.

A checklist helps because April is not the month when anyone moves slowly and double-checks every detail. Most tax pros are swamped then, so you’re usually in “get it done” mode, not “let’s calmly review every odd little item that happened this year” mode.

That’s also why reviewing a draft return before it’s filed is so useful. When you look at the draft with your real-life details in mind, you catch the common stuff that doesn’t automatically show up on a tax form, like 529 contributions or a retirement contribution you made outside payroll.

One more reason this matters now: the IRS can cross-check more than ever. When a 1099 shows up on their side and not on your return, it creates a mismatch. A mismatch doesn’t guarantee an audit, but it does add friction, questions, and letters nobody wants.

Your goal isn’t “perfect taxes.” Your goal is “no missing forms, no missing payments, no avoidable surprises.”

Income: Track every source so nothing gets left behind

Income is the first place mistakes happen because income documents arrive from different places, at different times, in different formats. Some come in the mail, others land in a portal you forgot existed, and a few show up only if you remember to download them.

A practical move is to create a secure folder on your computer called something like “2025 Tax Documents.” Keep it boring. Boring is good. Then save documents as they arrive, instead of trying to reconstruct your whole year in March.

W-2 wages and equity compensation paperwork

If you’re an employee, you already know the drill: you need your W-2. Still, even this can get weird if you switched jobs, moved states, or had multiple employers. More jobs usually means more W-2s, and it’s easy to miss one if it’s sitting in an old HR portal.

Equity comp can add another layer. It’s not the most common thing for physicians, but it’s common among physician spouses in tech or pharma. If equity was part of your year, look for items tied to 83(b) elections and the forms that show up with stock plan activity (often Form 3921 or Form 3922, depending on what you received).

To keep this simple, you’re basically asking, “Did anyone pay me as an employee, and did anyone pay me with stock or options?” If so, gather all forms tied to it, even if the amounts seem small.

1099 income from moonlighting, locums, and side work

This is the one that bites people, because it feels “separate” from the main job. Moonlighting or locums work often comes with 1099 income, and it’s easy to lose track when you worked at multiple sites or picked up random shifts.

Don’t rely on memory. Don’t rely on a calendar. Use documents.

Also, don’t rely on one “master 1099” magically appearing. If you worked with multiple groups, you can end up with multiple forms. Miss one, and you can end up with that ugly mismatch problem later.

If paper folders feel outdated (they do), keep it digital. Save every 1099 PDF the moment it hits your inbox or portal. If you want to get fancy, use subfolders like Income, Deductions, Credits, and “Misc.” If you don’t, one folder still beats chaos.

Taxable investments and bank interest (the sneaky 1099s)

People expect 1099s from brokerage accounts. What gets missed is the boring stuff, like bank interest.

Yes, your taxable accounts at places like Fidelity, Vanguard, or Schwab may issue 1099 forms. But your bank can also issue a 1099 for interest, and it’s easier to trigger than you might think, especially with high-yield online savings accounts paying real interest again.

So, make yourself ask the annoying question: “Did I earn interest anywhere?” If the answer is yes, go hunting for that form.

This is also where “IRS cross-checking” comes back into play. If a financial institution reports something, it exists in the IRS’s world. Your return has to match that reality.

Retirement income, real estate sales, and alimony rules

Income is bigger than wages and 1099 work. If any of these happened, you want the related documents:

• Withdrawals from retirement plans (and yes, that includes certain insurance policy withdrawals)
• Pension, annuity, Social Security, or railroad retirement income
• Sale of a home or other real estate
• Alimony (with an important rule tied to when the divorce was finalized)

On alimony, the key cutoff to remember is divorce finalized before January 1, 2019. That date drives whether alimony is treated the old way or the new way for taxes.

Real estate also deserves extra attention. People remember the sale, but forget the paperwork, or assume the accountant can “pull it from somewhere.” Don’t assume. Track it like any other income event.

Deductions: The places physicians miss the most

Deductions are where you can either save money or accidentally leave money on the table. The problem is that deductions often require two things at once: (1) the expense must qualify, and (2) your accountant must know it happened.

If the expense doesn’t generate a clean tax form, it’s on you to surface it.

Self-employed deductions (even if you also have a W-2)

Here’s the mind shift: if you have W-2 income and also have 1099 income, you’re still self-employed for that 1099 activity. That’s where a bunch of deductions can come into play.

Common categories to track include home office expenses, vehicle use, and health insurance premiums (in certain self-employed situations). You also want to track professional expenses tied to the 1099 work, such as CME costs, travel, and other items your employer didn’t reimburse.

The big idea is simple: if you earned 1099 income, start tracking the expenses that made that income possible. Waiting until tax time turns it into guesswork.

Retirement and tax-advantaged contributions that don’t show up automatically

Some contributions show up cleanly on forms, others don’t. For many physicians, 401(k), 403(b), and 457(b) contributions through payroll will be reflected on your W-2, so those are usually fine.

The trouble starts when you contribute outside payroll, because there may be no obvious “here’s your tax form” reminder.

Examples that often need a manual heads-up include:

• IRA or Roth IRA contributions
• HSA contributions you made directly (not through payroll)
• 529 plan contributions (often no official tax form; it may just appear on an account statement)
• Solo 401(k) contributions for 1099 income (again, no neat little tax form that forces attention)

If you made any of these moves, your accountant may not know unless you tell them. That silence can cost you.

Medical expenses: The myth, the threshold, and the fertility example

You might hear people say that medical expenses “don’t count” for tax purposes. That’s not true. The catch is the threshold.

Medical expenses can be deductible if they exceed 7.5% of your AGI, and even then, only the amount above that threshold counts.

That matters in situations where costs spike. Fertility treatments are a common example. If your employer didn’t cover them and you paid out of pocket, those expenses can be large enough to matter. Whether you benefit depends on your AGI, so income level changes the math, and this can be especially relevant in lower-income training years.

The practical takeaway: don’t automatically dismiss medical expenses. Track them, then let the tax rules decide.

SALT, mortgage interest forms, and a couple of newer interest items

Some deduction topics get updated, and those updates can shift the numbers in a real way.

State and local taxes (SALT) are one. The cap discussed for 2025 can be as high as $40,000 if household income is below $500,000 (using married filing jointly as the reference), with a phaseout as income moves from about $500,000 to $600,000. If you file married filing separately, the numbers are lower, and that filing status often shows up for people managing student loan strategies.

Mortgage and home equity interest is also form-driven. If you had mortgage interest or a home equity line of credit, you’ll typically see Form 1098. Here’s a classic miss: if you had two homes in the same year (sold one, moved, bought another), you can have two separate 1098s.

A few additional items mentioned that may apply in certain situations:

• Interest tied to a new vehicle assembled in the US (you’ll need the details if you’re claiming it)
• Student loan interest (many attendings phase out, but it can still matter in training or lower-paying roles)

Credits: The dollar-for-dollar stuff you want to notice

Deductions reduce taxable income. Credits reduce your tax bill directly. That’s why credits tend to feel better.

If you qualify for credits and miss them, you don’t just lose a “nice-to-have” deduction. You can lose a direct reduction in what you owe.

Dependents, education, EVs, and marketplace coverage

This is the part of the checklist where life events matter. New baby? Adoption? Supporting another dependent? Those changes can open the door to credits you didn’t have before.

Education credits can show up, too, if you, your spouse, or a dependent had qualified education expenses.

Electric vehicle credits may apply depending on what you bought and whether it qualifies. Because the rules can be picky, the best approach is to keep clean purchase documentation and confirm eligibility rather than guessing.

Marketplace health insurance is another trigger. If you or a family member obtained coverage through the marketplace, make sure the paperwork is included in your tax filing.

Estimated tax payments (the “why is this bill so high?” moment)

Estimated payments are an easy one to mess up, and the consequences show up as a painful surprise.

If you paid quarterly estimated taxes (Q1, Q2, Q3, and maybe Q4), your accountant needs those amounts. If they don’t know, they can file a return that makes it look like you never paid. That can swing your “amount due” by thousands.

So even if you did everything right, you can still get a scary draft return if the payments aren’t recorded correctly. Double-check that your estimates appear on the draft before anything gets filed.

The “did we miss anything?” section that saves you from big mistakes

Once you’ve covered income, deductions, and credits, you’re not done. You’re at the part where weird stuff lives. Weird stuff is where mistakes love to hide.

Backdoor Roth: Tell your accountant, then check the form

If you made non-deductible traditional IRA contributions as part of a backdoor Roth process, you want to make sure it’s reported correctly. This is where Form 8606 comes into play.

If your accountant only sees a 1099 from an IRA and doesn’t know it was a backdoor Roth step, they might treat it like a taxable distribution. Depending on age and details, that can create taxes and possibly penalties that don’t belong there.

So yes, mention it explicitly, then verify it’s shown correctly on the return.

QCDs: A 2025 reporting change, but don’t trust it blindly yet

If you made a qualified charitable distribution (QCD) from an IRA, that can reduce taxable income when done correctly.

A reporting update for 2025 is that QCDs should start showing up more clearly on the 1099. Still, because it’s new, don’t assume it will be perfect on day one. Confirm that the return reflects the QCD correctly, especially since missing it can create a big swing in your tax bill.

Rentals, business ownership, and the extra forms that surprise people

Rental properties can turn tax prep into a different animal. Once rentals enter the picture, Schedule E starts doing its thing, and you’ll want clean records for income and expenses.

Business ownership can add more layers too. If you co-own a business, have an S-corp, or run 1099 income through a structure, you’ll want to make sure contributions and filings don’t get missed.

One specific trap: if you contribute to a Solo 401(k), your accountant may not see a neat form that forces the issue, so you have to communicate the contribution.

Another surprise is the additional filing tied to solo 401(k) balances. If your solo 401(k) exceeds $250,000, it may trigger Form 5500-EZ.

State-specific issues also belong here. Moving, working across state lines, or having income sourced in multiple states can all add wrinkles worth flagging early.

Gifts above the annual exclusion, carryovers, and foreign income

If you made gifts above the annual gift exclusion, note it. The exclusion amount referenced for planning purposes here is $19,000 per recipient (and yes, these numbers can change over time, so confirm the right year’s limit when you file).

Also, carryovers matter:

• Capital loss carryforwards from prior years
• AMT carryforward amounts
• Foreign income items tied to investments (this happens more often than people expect)

If any of those exist, make sure they carry into the current year’s return correctly, instead of disappearing because nobody remembered to mention them.

The pitfalls that keep showing up (and the extension trap)

Even with a checklist, a few mistakes keep popping up.

Here are the big ones to watch for:

1. Missing a 1099, whether from moonlighting, a brokerage account, or a bank paying interest.
2. Believing the myth that medical expenses never count, instead of applying the 7.5% AGI threshold correctly.
3. Forgetting to mention retirement contributions that don’t show up on a W-2, like IRAs, HSAs made outside payroll, solo 401(k) contributions, and 529 deposits.
4. Skipping over the SALT update, then being surprised by how much it changes itemizing decisions.
5. Filing an extension and assuming it buys you time to pay.

That last one deserves a spotlight.

Filing an extension extends your filing deadline, not your payment deadline. If you owe and don’t pay, interest and penalties can start adding up.

So if you extend, still plan for the payment side. Otherwise, you’re just paying extra for no reason.

Conclusion: Use the checklist, then verify the draft before filing

Tax season gets less stressful when you treat it like a paperwork project, not a last-minute scavenger hunt. Gather every income form, track deductions that don’t create tax documents, and make credits and estimated payments impossible to miss. Then review the draft return with a “what would I forget?” mindset before it’s filed. Above all, remember the simplest rule here: an extension isn’t an extension to pay.