Tax season shouldn't feel like a fire drill. But for most business owners and entrepreneurs, that's exactly what it is, a frantic scramble to find documents, reconstruct records, and hand a shoebox of information to a CPA who then has three weeks to figure it all out. Following a structured tax preparation roadmap eliminates this stress, prevents costly mistakes, and ensures you aren't leaving money on the table.
The good news is that almost all of it comes down to preparation, and preparation is something you can control.
Jason Lafser is a CPA and partner at Oro Tax Advisors with over 20 years in public accounting. What he sees year after year is not that people have bad tax situations. It's that they show up unprepared, which turns a manageable process into an expensive, anxiety-producing one. Here's the roadmap he uses with clients to change that.
The Real Cost of Being Unprepared
Most people think of tax preparation mistakes in terms of forms and numbers. The actual costs are broader than that.
Missed deductions are the most obvious. If you didn't track a business expense properly, it doesn't get deducted. The receipt isn't just a piece of paper, it's the proof that makes the deduction defensible if you're ever audited. Without it, the deduction goes away even if the expense was completely legitimate.
Lost deductions in an audit are the compounding version of that. Your CPA prepares your return based on what you give them. They're not auditing the information, they're trusting it. If the IRS audits your return and asks for substantiation, that's between you and the IRS. The deduction stands or falls on your records, not on your memory.
Overpaying and underpaying estimated taxes both cost money in different ways. Overpay and you've given the IRS an interest-free loan that could have been working for you. Underpay and you're facing penalties and interest on top of the tax itself.
Rush fees are a real thing. Compressing a return into the last two weeks before a deadline takes more of your CPA's time and attention, and many firms charge for it. More importantly, compressed timelines increase error rates, not because CPAs are careless, but because humans who have been working ten-hour days for six weeks straight make mistakes. Numbers get transposed. Things get overlooked. The more you can move your work away from the deadline, the better the output.
The Deadlines That Actually Matter
Knowing when things are due, and working backward from there, is the foundation of not being caught off guard.
- January 31st: Required issuance date for W-2s and 1099s. If you have employees or contractors, this is when they should receive their tax documents. If you're the recipient, start your file when these begin arriving.
- February 15th: Recommended internal deadline set by Oro for clients with S-corporation or partnership returns due on March 15th. Getting documents to your preparer a full month early gives enough time to prepare, review, ask questions, and make changes without rushing.
- March 15th: Due date for S-corporation and partnership returns. These entities generate K-1s, which feed directly into the personal returns of every owner or partner. If the business return isn't done, the personal return can't be filed accurately.
- April 15th: Deadline for individual returns, C-corporations, and first-quarter estimated tax payments for the current year. For anyone whose business income flows through a K-1, the cascade from March 15th matters: business return first, then personal.
Extensions don't eliminate the obligation, they extend the filing deadline, not the payment deadline. If you owe tax, the payment is still due by the original deadline even if you file later. What extensions do provide is time to get things right, and at Oro, that's often the recommendation when a return is complex enough that rushing it would create risk.
What to Gather, and Where People Fall Short
On the income side, the IRS receives copies of essentially every tax document issued to you: W-2s, 1099s from clients and brokerage accounts, real estate sale proceeds reported on 1099-S forms. When you file your return, their computers cross-reference what you report against what they already know. Discrepancies generate automatic notices, no human review required.
This is why every 1099 you receive needs to be reported, even ones you believe are incorrect or non-taxable. If you received a 1099-C for cancellation of debt that you don't think you actually owe tax on, or a 1099 from an Augusta Rule rental that's offset by a deduction, the income still needs to appear on your return, with the offsetting deduction explained. Failing to report a 1099 because you think it doesn't apply to you is a reliable way to get an IRS notice.
Payment processing 1099-Ks have become increasingly relevant for anyone selling through platforms like TikTok Shop, Etsy, or other third-party processors. Once you hit roughly $20,000 in gross sales or 200 transactions in a calendar year, the platform reports that activity to the IRS. It reports gross sales, not profit, not net, and your return needs to account for it.
On the deduction side, the documents most commonly missing are the ones with the least automatic systems behind them. Mortgage interest and property taxes are often on Form 1098 if they're paid through escrow, but if property taxes aren't escrowed, you'll need the actual tax bill and proof of payment. Charitable contributions require a receipt from the qualifying nonprofit that includes the date, amount, and the language confirming no goods or services were received in exchange. A handwritten summary or personal spreadsheet is enough for your CPA to work from, but if you were audited, the IRS would need the actual letter from the charity.
Mileage is one of the most commonly estimated and least supported deductions for self-employed taxpayers. A contemporaneous log is what the IRS expects, meaning a record made at the time of the trip, not reconstructed later. There are apps that automate this. Use them.
Bookkeeping Is Not Tax Preparation
This distinction costs business owners real money every year, and it's worth being direct about it. When you bring your bank statements to your CPA and say "use this," you are asking them to do bookkeeping. That is a separate service from tax preparation, and most preparers will either charge you for it or decline to do it.
More importantly, bank statements aren't sufficient source material even when a CPA is willing to work from them. A deposit to your account might be revenue, a loan, a transfer from another account, or a refund. Without a categorized accounting system, your CPA has to ask you about every transaction, which takes time and introduces the risk that things get misclassified.
Good books mean you know your actual financial position at any point in the year, which is what makes proactive planning possible. If your QuickBooks is two months behind and missing income because you haven't categorized it, you can't have a meaningful planning conversation in November. Jason describes a client whose books showed breakeven when they were actually on track to replicate a prior year with $500,000 in income, because six weeks of revenue hadn't been entered. That's not a tax problem. That's a bookkeeping problem that prevents solving the tax problem.
QuickBooks is the most common platform, and it's user-friendly enough that many business owners DIY it. The blessing and the curse of that accessibility is that it's easy to have books that look functional but contain structural errors, distributions coded as expenses, loans not on the balance sheet, income and equity mixed together. A bookkeeper who understands the difference between what belongs on a P&L and what belongs on a balance sheet is worth the cost, particularly as the business grows.
Entity Types, Compensation, and What Actually Gets Filed
One of the most persistent points of confusion at tax time is the relationship between the legal entity you formed and how it's actually taxed.
An LLC is not a tax classification. It's a legal structure that can be taxed as a sole proprietorship (if single-owner and no election), a partnership (if multi-owner and no election), an S-corporation (by election), or a C-corporation (by election). Knowing which return is being filed, and which deadline applies, requires knowing how the entity is being taxed, not just what it's called.
Compensation also varies by entity type in ways that have real compliance implications:
- Sole Proprietors: Take owner draws and pay self-employment tax on all business profit.
- Partners: Should receive guaranteed payments rather than W-2 wages. Running a partner through payroll is technically incorrect, even if the underlying math works out similarly.
- S-Corporation Owners: Must pay themselves a reasonable salary before taking distributions, with "reasonable" defined by facts and circumstances. The IRS pays close attention to S-Corp owners who pay themselves very low salaries and take large distributions to artificially reduce payroll tax.
Multi-State Complexity Is Growing
If your business sells products or services in multiple states, and for many online businesses, that means across all fifty, state tax obligations have gotten significantly more complicated in the past several years.
The foundational rule is that it doesn't matter where your entity is organized. It matters where you are actually doing business. Incorporating in Wyoming or Delaware doesn't eliminate state income tax obligations in states where you have employees, property, or significant sales activity.
The 2018 South Dakota v. Wayfair Supreme Court decision changed the sales tax landscape by establishing that states can require collection of sales tax from sellers who exceed certain economic thresholds, even with no physical presence in the state. States have increasingly extended this economic nexus concept to income tax as well. If your business crosses certain sales or transaction thresholds in a state, you may have an income tax filing obligation there regardless of where your business is organized.
The number of clients who know this is far smaller than the number who should.
The Document You Didn't Know You Could Pull
One practical tool that most taxpayers don't know about is the IRS transcript. If you've lost a 1099, can't get a replacement from the issuer, or simply aren't sure you've collected everything, you can pull a wage and income transcript directly from your IRS online account. It shows everything that has been reported to the IRS under your Social Security number: W-2s, 1099s, investment income, retirement distributions.
The caveat is timing. Brokerage firms have until mid-February to issue 1099s, and some issue corrections multiple times through March. The transcript reflects what's been reported to the IRS at the time you pull it, so pulling it in early February won't show everything. And if you're waiting on K-1s from a partnership or S-corporation, those won't appear until after the business return has been filed, which is often why personal returns get extended in the first place.
Your CPA can also pull transcripts on your behalf with a power of attorney. At Oro, pulling the transcript is often a standard part of the process to make sure nothing has been missed before filing.
What the Planning Conversation Actually Looks Like
Most people experience tax as something that happens to them once a year. They give someone a pile of documents, wait, and get a number back. The filing is reactive to what already happened.
Tax planning is the opposite of that. It's a conversation that happens throughout the year about decisions that haven't been made yet, whether to buy equipment now or next year, how to structure a property sale, whether to do a Roth conversion in a year when income is lower, whether a new line of business might qualify for the R&D credit. These decisions can only be optimized if someone is thinking about them before they happen.
When a client gives their CPA documents on April 12th, there's nothing left to plan. The year is closed. The strategy window has passed. Everything that follows is compliance, accurately reporting what already occurred.
That's the case Jason makes for treating tax not as a season but as an ongoing conversation, and it's the operating model at Oro. The advisory side is what clients are paying for, and it only works if the relationship and the communication happen year-round.
A Few Things Worth Doing Before You File
- Check Your IRS Account: Create an account at IRS.gov and pull your wage and income transcript for last year. Confirm that everything reported to the IRS matches what ended up on your return.
- Review Mileage Logs: If you're self-employed and using a mileage deduction or deducting automobile expenses based on business usage, check whether you have a contemporaneous log or whether it's something reconstructed from memory.
- Verify Entity & Filing Deadlines: If you have a business entity, confirm with your CPA how it's being taxed and which deadline applies. If you have partners or shareholders in a flow-through entity, confirm that their K-1s will be ready in time to file their personal returns.
- Report Major Life Changes: If you got married, divorced, had a child, bought or sold real estate, or made a significant change to your business structure in the past year, make sure your preparer knows. These changes have tax implications that aren't always obvious.
And if you're regularly stressed about taxes, regularly surprised by what you owe, or regularly wondering whether you're missing opportunities, that's not a tax season problem. It's a relationship problem, and the fix is finding an advisor who treats it as a year-round engagement.
Ready to Make Tax Season Easier?
If any of this describes where you are, that's exactly the conversation we'd like to have. Book a call with the Oro Tax Advisors team and let's talk about what tax planning looks like when it's done proactively.
This article is for educational purposes only and does not constitute legal or tax advice. Consult a qualified tax professional before implementing any strategy.