One of the first questions candidates ask when starting the CPA exam journey is how long the whole process actually takes. The honest answer is that it depends significantly on how many hours per week are available for studying, which section order is chosen, and how efficiently preparation time is used.
What most candidates underestimate going in is how much the credit window rules shape the entire timeline. Understanding those rules before choosing a section order and building a study schedule is one of the most important things a candidate can do before sitting for the first section.
This guide covers realistic timelines for both full-time studiers and working professionals, the recommended study hours by section, the section order that gives candidates the best chance of finishing on time, and the most common reasons candidates run out of time before completing all four sections.
Table of Contents
- The Credit Window: How It Actually Works in 2026
- Typical Timeline for Full-Time Studiers
- Timeline for Working Professionals
- The Best Section Order and Why FAR First Makes Sense
- Study Hours by Section
- What Causes Candidates to Run Out of Time
- How to Stay on Track
- Key Takeaways
- FAQ
Key Takeaways
| Point | Details |
|---|---|
| The credit window is 30 months in most states | NASBA updated its model rules from 18 to 30 months. Most states have adopted this, though some still enforce 18 months. Candidates must verify with their specific state board. |
| The clock starts on your first passing score date | The window begins when the passing score is officially recorded, not when the exam is taken or when scores are viewed online. |
| Discipline sections have quarterly testing windows only | BAR, ISC, and TCP can only be taken in January, April, July, and October. Core sections are available year-round. This materially affects timeline planning. |
| Full-time studiers typically finish in 12 to 16 months | With 15 or more study hours per week, most candidates can pass all four sections well within the window. |
| Working professionals typically need 18 to 24 months | At 8 hours per week, section order and study efficiency become critical to finishing within the window. |
| FAR first is the most widely recommended starting point | Tackling the most content-heavy section before the credit window starts is a significant strategic advantage for most candidates. |
The Credit Window: How It Actually Works in 2026
The CPA exam operates under a rolling credit window administered by NASBA. The rules work as follows: once a candidate passes their first section, a clock starts. All remaining sections must be passed before that period expires. If a candidate does not complete all four sections in time, the earliest passing score expires and must be retaken.
Important 2026 update: the window has changed in most states.
In April 2023, NASBA approved an amendment to its Uniform Accountancy Act Model Rules extending the credit window from 18 months to 30 months. As reported by the Journal of Accountancy, this change was designed to provide candidates with greater flexibility given the demands of the exam under CPA Evolution. Most states have now adopted the 30-month window, and some jurisdictions such as Washington allow as long as 36 months.
However, because each state board of accountancy must individually adopt the change, not every jurisdiction has done so. Candidates should verify the exact window that applies to their state directly with their state board before making timeline decisions.
For planning purposes, this guide uses 30 months as the working assumption for candidates in states that have adopted the NASBA amendment.
How the window works in practice:
If a candidate passes FAR on January 15, 2026 in a 30-month state, they have until July 15, 2028 to pass AUD, REG, and their chosen discipline section. If they do not complete all three within that window, the FAR score expires and must be retaken.
A few clarifications that candidates frequently misunderstand:
The clock starts on the official score release date, not the exam date. Sitting for an exam on one date and receiving the score two weeks later means the window begins on the score release date, not the day of the exam.
The window is rolling, not tied to a calendar year. Each passing score has its own expiration date counted from when it was earned, not from January 1 of any given year.
Failed attempts do not start the clock. Only a passing score triggers the window. Failed attempts consume preparation time but do not begin the countdown.
Typical Timeline for Full-Time Studiers
Candidates who can dedicate 15 or more hours per week to CPA exam preparation are in the most favorable position in terms of timeline. With consistent effort at that level, passing all four sections within 12 to 16 months is realistic for most candidates, well within either an 18-month or 30-month window.
A typical full-time study timeline looks like this:
Months 1 to 4: Prepare for and sit for FAR. At 15 hours per week, this allows roughly 10 to 12 weeks of focused preparation before the exam date, with additional time for a final review pass.
Months 4 to 7: Prepare for and sit for the second core section (AUD or REG). The credit window is now running from the first passing score date.
Months 7 to 10: Prepare for and sit for the third core section.
Months 10 to 14: Prepare for and sit for the discipline section (BAR, ISC, or TCP). Note that discipline sections are only offered in the first month of each quarter, so the exam date must be planned around those windows specifically.
This timeline builds in buffer for score release delays, retakes if needed, and the natural unevenness of real life. Candidates who pass each section on the first attempt and sequence their exams efficiently can occasionally finish in under 12 months.
Timeline for Working Professionals
The majority of CPA candidates are working full time while studying, which changes the realistic timeline considerably. At 8 hours of study per week, preparation for each section stretches significantly, and the credit window becomes a more pressing planning constraint even at 30 months.
A realistic working professional timeline looks like this:
Months 1 to 5: Prepare for and sit for FAR. At 8 hours per week across 18 to 20 weeks, this allows adequate preparation time for the most content-heavy section before the credit clock starts.
Months 5 to 10: Prepare for and sit for the second core section.
Months 10 to 15: Prepare for and sit for the third core section.
Months 15 to 22: Prepare for and sit for the discipline section, working around the quarterly testing windows for BAR, ISC, or TCP.
This timeline works within a 30-month window but leaves limited margin for failed retakes or extended breaks. Working professionals following this schedule need to treat study time as a non-negotiable commitment. Any significant disruption, whether from busy season at work, personal circumstances, or a failed section, compresses the remaining window meaningfully.
Candidates in this situation often benefit significantly from a structured preparation plan built around their specific schedule. The one-on-one tutoring services at Andrew Katz Tutoring include personalized study planning designed specifically for working professionals whose time is limited and whose margin for inefficiency is low.
The Best Section Order and Why FAR First Makes Sense
Choosing the right section order is one of the highest-leverage decisions a CPA candidate makes before sitting for the first exam. The most widely recommended order is FAR first, followed by AUD or REG, then the remaining core section, and finally the discipline section.
The case for sitting FAR first comes down to two things: difficulty and timing.
FAR is the most content-heavy section. Sitting for it before the credit window starts means the preparation period for the hardest section does not consume any of the window. If FAR requires a retake, both attempts happen before the countdown begins.
FAR content supports other sections. The financial accounting foundation in FAR is directly applicable to BAR if that is the chosen discipline, and it provides useful context for AUD as well. Candidates who sit FAR last sometimes find they have lost familiarity with material that would have been useful earlier.
One important planning note on discipline sections: BAR, ISC, and TCP are only administered during the first month of each calendar quarter, specifically January, April, July, and October, with score releases arriving approximately 6 to 10 weeks after each window closes. This means discipline section timing must be planned ahead of time, not scheduled on demand the way core sections can be.
For more detail on which discipline section fits a candidate’s background, the guide on BAR vs ISC vs TCP covers that decision in full.
Study Hours by Section
The table below reflects broadly cited preparation benchmarks based on AICPA recommendations and common candidate experience. Individual preparation time will vary based on accounting background, time since relevant coursework, and how efficiently study sessions are structured.
| Section | Recommended Study Hours | Weeks at 15 hrs/wk | Weeks at 8 hrs/wk |
|---|---|---|---|
| FAR | 350 to 400 hours | 23 to 27 weeks | 44 to 50 weeks |
| AUD | 300 to 350 hours | 20 to 23 weeks | 38 to 44 weeks |
| REG | 300 to 350 hours | 20 to 23 weeks | 38 to 44 weeks |
| BAR | 300 to 350 hours | 20 to 23 weeks | 38 to 44 weeks |
| ISC | 250 to 300 hours | 17 to 20 weeks | 31 to 38 weeks |
| TCP | 250 to 300 hours | 17 to 20 weeks | 31 to 38 weeks |
A few clarifications on how to use this table:
These are preparation benchmarks, not guarantees. A candidate with a strong audit background may need significantly fewer hours for AUD. A candidate returning to accounting after several years away may need more time for FAR. The ranges above reflect typical preparation, not fixed requirements.
Quality of study hours matters as much as quantity. Passive video watching counts very differently from active timed practice. Candidates who study with high focus and consistent active recall tend to need fewer total hours than those who log time without genuine engagement.
Failed attempts add time outside these ranges. The figures above assume a single successful attempt per section. Retakes extend total preparation time and compress the remaining credit window simultaneously.
What Causes Candidates to Run Out of Time
Running out of time within the credit window is more common than candidates expect when they start the process. The causes are usually identifiable in hindsight and fall into a few recurring categories.
Poor section order. Starting with a section other than FAR means the credit window starts earlier relative to when the hardest preparation is completed. Candidates who sit FAR last and need a retake often find that the window has tightened significantly before they pass.
Not planning around discipline section windows. Because BAR, ISC, and TCP are only available once per quarter, a candidate who finishes the three core sections but misses the next discipline window by a few weeks faces a wait of up to three months before sitting again. That gap, unplanned for, can push the discipline attempt uncomfortably close to an expiring core section credit.
Extended breaks between sections. Taking two or three months off between sections feels harmless in isolation but compounds quickly. Four sections with two-month gaps between each consumes eight months of the credit window before any exam is sat in that stretch.
Underestimating FAR preparation time. Candidates who underestimate how long FAR takes often sit before they are ready, fail, and then spend additional time on a retake. That sequence can consume five to six months on a single section.
Life disruptions without schedule adjustments. Busy season, family commitments, job changes, and other real-life events affect almost every candidate. The difference between candidates who complete within the window and those who do not is often whether they adjusted their schedule proactively when disruptions occurred rather than simply falling behind.
How to Stay on Track
Staying on track through four sections requires more than a plan at the start. It requires regular check-ins against that plan and adjustments when reality diverges from the original schedule.
A few practices that consistently help candidates complete within the window:
Set exam dates before starting preparation for each section. A registered exam date creates a concrete deadline that prevents preparation from drifting. Candidates who study without a fixed exam date tend to take longer than those who work backward from a specific target.
Plan the discipline section window early. Because BAR, ISC, and TCP only test quarterly, the discipline exam date needs to be selected early and factored into the overall timeline from the beginning, not treated as something to figure out once the core sections are done.
Build a week-by-week study schedule before starting each section. A schedule that maps specific topics by week, with built-in review time and simulation practice toward the end, prevents last-minute cramming that often produces underperformance on exam day.
Track weekly study hours honestly. The difference between planned and actual study hours compounds quickly. Candidates who review their actual hours weekly catch shortfalls early enough to adjust. Those who only assess at the end of a preparation period often discover the gap too late.
Verify your state’s credit window before building the plan. Given that some states still enforce 18 months while most now allow 30, and some allow up to 36, the specific window governing a candidate’s timeline should be confirmed directly with their state board before any scheduling decisions are made.
Candidates who want structured support in building and maintaining a realistic timeline can explore the CPA tutoring services at Andrew Katz Tutoring, where personalized study planning is a core component of every tutoring engagement.
Key Takeaways
Passing all four CPA exam sections within the credit window is achievable for both full-time studiers and working professionals, but it requires realistic timeline planning from the start. In most states, the window is now 30 months following NASBA’s 2023 amendment, though candidates must verify this with their specific state board. FAR first is the most strategically sound starting point for most candidates. The discipline section requires separate planning because it is only available during quarterly testing windows, and missing a window creates a meaningful delay. The candidates who run out of time most often are those who underestimated FAR preparation, took extended breaks between sections, or failed to plan around the discipline section’s quarterly schedule.
A personalized timeline built around actual available study hours and the correct window for a candidate’s state is more valuable than a generic schedule that assumes ideal conditions.
FAQ
Is the CPA exam credit window 18 months or 30 months in 2026?
It depends on the state. NASBA approved an extension from 18 to 30 months in April 2023, and most states have adopted it. Some still enforce 18 months and at least one jurisdiction allows 36 months. Candidates should verify the exact window with their state board of accountancy before building their exam timeline.
When does the credit window start?
The window begins on the official score release date for the first passing section, not the date the exam was taken or the date scores were viewed online.
Can I take the discipline section at any time of year?
No. BAR, ISC, and TCP are only available during the first month of each quarter: January, April, July, and October. Core sections (FAR, AUD, REG) are available year-round on a continuous basis. Score release for discipline sections takes approximately 6 to 10 weeks after the testing window closes, compared to 1 to 2 weeks for core sections.
What happens if I do not pass all four sections within the credit window?
The earliest passing score expires and that section must be retaken. The credit window then resets from the new passing score date for that section, requiring all remaining sections to be completed within the new window.
How long does FAR preparation realistically take for a working professional?
Most working professionals studying around 8 hours per week should plan for 18 to 22 weeks of FAR preparation. Candidates with a strong financial accounting background from recent work experience may need less time. Candidates returning to the material after several years away may need more.
How much does each CPA exam section cost?
The NASBA standard exam section fee is $262.64 per section, though total costs including state registration fees vary by jurisdiction. Candidates should check their specific state board for the full fee schedule. Retaking a failed section requires paying the full exam fee again.
Looking for help building a realistic CPA exam timeline around your schedule? Explore the one-on-one tutoring services at Andrew Katz Tutoring or browse the blog for more CPA exam strategy guides.