CPA REG 2026: Surviving Tax Season Before Tax Season Exists

Why REG Scares People Who've Never Filed a 1040

Let me tell you about the moment I realized REG was going to be a problem. I was three weeks into studying, confidently reading about adjusted gross income, and I stopped mid-sentence because I genuinely did not know the difference between a deduction *for* AGI and a deduction *from* AGI. I had been an accounting major for four years. I had passed FAR. And I was sitting there staring at a concept that, apparently, I had never once needed to actually understand.

That's REG in a nutshell. It assumes you know things you probably don't. If you're coming in with no tax background — no internship at a firm, no time in a tax department, no side hustle doing your relatives' returns — you are not alone, and you are not doomed. But you do need a strategy that acknowledges the gap.

The 2026 REG exam, per the AICPA's current blueprint, allocates roughly 55–85% of its content to federal taxation, with the remainder split between business law and ethics. Pass rates have historically hovered around 59–62%, which sounds manageable until you're looking at your NTS wondering how to allocate six weeks of study time. Let's fix that.

The Tax Foundation You Actually Need

Individual taxation is where most candidates without a tax background feel the ground shift. The core concept — that the U.S. uses a progressive marginal tax rate system — seems obvious until the exam asks you to calculate the tax liability of a single filer with $180,000 of ordinary income, $15,000 of qualified dividends, and a capital loss carryover. Suddenly you're juggling three different rate structures simultaneously.

Start here: understand the tax formula before you memorize a single rate or threshold. Gross income minus above-the-line deductions equals AGI. AGI minus the greater of the standard deduction or itemized deductions, minus the qualified business income deduction if applicable, equals taxable income. Taxable income times the applicable rate equals gross tax. Gross tax minus credits equals tax liability. That's the skeleton. Everything else — depreciation recapture, passive activity loss rules, the at-risk limitation — hangs off that skeleton.

Passive activity rules deserve their own paragraph because they are the thing that broke me for approximately five days. The basic rule is that losses from passive activities can only offset income from other passive activities. But then you learn about the $25,000 rental real estate allowance for active participants, which phases out between $100,000 and $150,000 of AGI, and suddenly you're doing three calculations inside one question. The exam loves this. Study it until you can sketch it out from memory on your scratch paper.

Capital Gains and the Rate Trap

Capital gains taxation is where candidates lose points they shouldn't. Short-term capital gains are taxed as ordinary income. Long-term capital gains — assets held more than 12 months — are taxed at preferential rates of 0%, 15%, or 20% depending on taxable income. The trap is assuming everyone pays 15%. A single filer with taxable income under $47,025 in 2024 (thresholds adjust annually, so confirm the 2026 figures when they're released) pays 0% on long-term gains. The exam will give you a scenario where that matters, and if you defaulted to 15%, you just lost the point.

Corporate Taxation: A Different Animal

C corporations are taxed as separate entities at a flat 21% federal rate since the Tax Cuts and Jobs Act. That's the easy part. The hard part is everything around it — dividends received deductions, net operating loss carryforwards limited to 80% of taxable income, the accumulated earnings tax, and the distinction between book income and taxable income that gives rise to deferred tax assets and liabilities.

For REG purposes, the most testable corporate concepts are the formation rules under Section 351 (transferring property to a corporation tax-free, with the 80% control requirement), liquidation treatment, and the tax treatment of distributions. If you've studied FAR, the deferred tax mechanics will feel familiar in concept, even if the specific treatment differs.

S corporations and partnerships are also heavily tested, and they require you to understand flow-through taxation — the idea that the entity itself doesn't pay tax, but instead passes income, losses, and credits through to owners on a pro-rata basis. Basis tracking is the critical skill here. A partner's outside basis determines whether they can deduct losses, and it adjusts up for income allocations and contributions, down for distributions and loss allocations. Letting basis go negative is not allowed. The exam will test whether you know that.

Business Law: The Section Everyone Underestimates

Here's an uncomfortable truth: business law represents roughly 10–20% of the REG exam, and candidates who have no legal background often treat it as the section they'll "pick up" at the end. That strategy works until it doesn't. Contract law, agency, negotiable instruments, secured transactions under Article 9 of the UCC, and bankruptcy — these aren't lightweight topics. A single question on whether a contract modification requires consideration (hint: under common law, yes; under the UCC, no) can catch you off guard if you haven't spent real time here.

The approach that worked for me: treat business law like a mini-FAR. It's conceptual. It's rule-based. It rewards people who understand the *why* behind the rule, not just the rule itself. The Statute of Frauds, for instance, requires certain contracts to be in writing — contracts for the sale of goods over $500, contracts that can't be performed within one year, contracts for real estate. Know the list, but more importantly, know what happens when someone partially performs on an oral contract that should have been written. The exam gets into those edge cases.

How to Study When You're Starting From Zero

The most honest advice I can give a candidate with no tax background is this: give yourself more time than you think you need, and spend the first two weeks doing nothing but reading and watching — no practice questions. Build the conceptual architecture first. The AICPA content blueprint lists the topic weights, and you should weight your study time accordingly, but don't let that lull you into thinking you can skim individual taxation because it's "only" 23–27% of the exam.

After your foundation is in place, shift aggressively to practice questions. Not because repetition is a substitute for understanding — it isn't — but because the REG exam rewards candidates who can apply rules quickly under time pressure. At 4.5 hours for approximately 76 multiple-choice questions and task-based simulations, you don't have time to reason from first principles on every question. Pattern recognition built through practice is what closes the gap.

Sophos Academy's free practice questions are built to mirror the actual REG question style, which means you're not just drilling concepts — you're also learning how the exam frames problems. And once you've covered your content, the timed mock exams help you identify whether your time management holds up at exam pace, which is a different skill than knowing the material.

The simulation component (task-based simulations make up roughly 35–40% of your exam score) requires a slightly different preparation approach. Simulations test your ability to research authoritative literature and apply code sections in context. Practicing with realistic simulations before exam day is the closest thing to a cheat code that actually works.

What to Do Next

Start building your individual tax foundation today, and test yourself with free practice questions at [https://sophosacademy.org/practice](https://sophosacademy.org/practice) to find out where your gaps actually are — not where you think they are. When you're ready to simulate exam conditions, the timed mock exams at [https://sophosacademy.org/mock-exams](https://sophosacademy.org/mock-exams) will show you whether your knowledge holds up when the clock is running and the stakes feel real. REG is passable — it just requires the right map, and now you have one.