How to Switch CPAs Without Losing Your History (or Your Mind)

Switching CPAs is not as complicated as most people assume, but doing it carelessly can leave gaps in your tax history that cost real money. The process comes down to three things: getting copies of your records before you leave, timing the transition for the off-season, and giving your new CPA enough context to pick up where the old one left off. Your old CPA is professionally obligated to hand over your records within 45 days of your request, and the IRS can provide transcripts of your filed returns independently if anything falls through the cracks.

Not every frustration with your CPA justifies a switch. Tax work has seasonal bottlenecks, and even good CPAs get stretched thin in March and April. But certain patterns are not seasonal -- they are structural, and they will not improve on their own.

Unresponsiveness outside of tax season. If your CPA takes weeks to return calls in July, that is not a capacity problem. Year-round accessibility is the baseline for a professional relationship. You should be able to reach your CPA (or a member of their team) within a few business days at any time of year.

Recurring errors on your returns. Mistakes happen. But if you find the same type of error -- wrong filing status, missing schedules, transposed numbers -- on consecutive returns, the issue is systemic. Errors on filed returns can trigger IRS notices, and cleaning them up costs you time and sometimes penalties.

No proactive planning. A CPA who only contacts you when it is time to file is functioning as a tax preparer, not an advisor. If you have had a significant life change -- inheritance, business sale, divorce, retirement -- and your CPA did not reach out to discuss the tax implications, they are not watching out for you.

Fees rising without explanation. CPA fees do increase over time. The NATP 2025 Fee Study found that 83% of tax preparers raised prices in the past year, with most increases in the 6-10% range. That is normal. What is not normal is a 30% jump with no added services, no increase in complexity, and no conversation about why.

Doesn't understand your situation. A CPA who is excellent for W-2 employees may be the wrong fit once you start a business, buy rental property, or receive equity compensation. Specialization matters, and outgrowing your CPA is not a reflection on them -- it is a reflection on how your financial life has changed.

If two or more of these describe your experience, the relationship is probably not working. And the cost of staying with the wrong CPA almost always exceeds the cost of switching.

Mid-filing season (January through April 15) is the worst time to change CPAs, unless your situation is urgent -- for example, your CPA has become unreachable entirely, or you have discovered a serious error on a return about to be filed.

A new CPA who picks you up in February is scrambling to learn your entire financial history while also managing their existing client load at peak capacity. They will have less time to review your prior returns carefully, and they may miss planning opportunities that would have been obvious with a longer onboarding window.

There is one exception: if your current CPA has not yet started your return and the new CPA has capacity, a mid-season switch can work. But confirm capacity first. Most good CPAs stop accepting new clients by late January.

Immediately before a major filing deadline (extensions, estimated payments, or entity elections) is also risky. A new CPA needs time to understand your situation before signing off on anything.

The Transition Process, Step by Step

Do not fire your existing CPA until you have a replacement lined up. The gap between CPAs is where records get lost, deadlines get missed, and planning falls through.

Start by interviewing two or three candidates. Ask about their experience with your specific situation, their communication style, their fee structure, and how they handle year-round planning. Our questions to ask before hiring a CPA covers this in detail.

Once you have selected a new CPA, tell them you are transitioning from another firm. They will know exactly what records they need and may even handle the request on your behalf.

Step 2: Request Copies of Your Records

Prior-year tax returns (minimum three years, ideally five or more). These are essential for your new CPA to identify patterns, carryforwards, and potential issues. Three years covers the standard IRS audit window; six years covers the extended window for substantial understatement of income.

Carryforward schedules. Net operating losses (NOLs), capital loss carryforwards, charitable contribution carryovers, and passive activity losses do not reset when you change CPAs. But they also do not transfer automatically. If your old CPA tracked a $15,000 capital loss carryforward and your new CPA does not know about it, you lose that deduction permanently.

Depreciation schedules. Every depreciable asset you own -- rental property, business equipment, vehicles used for business -- has a depreciation schedule tracking its original cost, the method being used (straight-line, MACRS, bonus depreciation, Section 179), accumulated depreciation, and remaining basis. If your new CPA does not have this schedule, they cannot correctly calculate your depreciation deductions going forward. Worse, they might re-depreciate an asset that has already been fully depreciated, which creates an audit risk.

Cost basis records for investments and property. Your brokerage provides 1099-Bs with cost basis for most publicly traded securities, but basis for real estate, partnership interests, S-Corp stock, inherited assets, and gifted property is not reported on any standard form. Your CPA's files may be the only place this information exists.

Engagement letters. These document the scope of work your prior CPA performed. They clarify what was and was not included in the engagement -- important if a question arises later about whether something was missed.

Entity documents (if applicable). S-Corp election letters (Form 2553), partnership agreements, operating agreements, and EIN confirmation letters. Your new CPA needs these to understand your entity structure.

Step 3: Understand Your Right to These Records

Your old CPA is not doing you a favor by providing your records. Under AICPA professional standards, they are obligated to do so.

In practical terms: your CPA cannot hold your tax returns or your original documents hostage over an unpaid bill. Many state boards of accountancy have adopted rules that are even stricter than the AICPA standard on this point. If your CPA refuses to release your records, you can file a complaint with your state board.

Put your request in writing. Email is fine. Specify exactly what you need, and reference the AICPA standard if you encounter resistance. Most CPAs comply without pushback; it is the small minority who make this difficult.

Step 4: Get IRS Transcripts as a Backup

Even if your old CPA cooperates fully, it is worth pulling your own IRS transcripts. They serve as an independent record of what was actually filed, and they catch discrepancies between what your CPA told you was filed and what the IRS received.

You can request transcripts through the IRS in three ways:

• Online at irs.gov through your Individual Online Account (fastest; available immediately for the current year and three prior years)
• By phone at 800-908-9946 (automated; delivered by mail in 5-10 calendar days)
• By mail using Form 4506-T (required for transcripts older than three years)

Request the Record of Account transcript, which combines both the return transcript (what was on your return) and the account transcript (payments, penalties, adjustments). This gives your new CPA the most complete picture.

Tax account transcripts are available online for the current year and up to nine prior years. For anything older, you need Form 4506-T, and processing takes 10 or more business days.

There is no fee for any transcript type.

Step 5: Time the Transition

The best window to switch CPAs is May through September. By May, your current-year return has been filed (or extended), and your new CPA has enough bandwidth to review your history carefully before year-end planning season begins in October.

Here is a realistic timeline:

If you switched mid-year and your old CPA filed an extension for you, your new CPA can pick up the extended return. Just make sure they have the extension confirmation (Form 4868) and know the filing deadline.

What Your New CPA Needs From You

Beyond the records from your old CPA, your new accountant will need:

• A summary of your current financial situation. Income sources, major assets, entities you own, significant changes from last year.
• Access to your financial accounts (read-only) if they will be doing bookkeeping or advisory work.
• Your goals. Are you trying to minimize current-year taxes? Planning for retirement? Selling a business in the next few years? The answer shapes the advisory work.
• Honest disclosure of anything unusual. Unreported income from prior years, foreign accounts, cryptocurrency holdings, aggressive positions your prior CPA took. Your new CPA needs the full picture to protect you.

The onboarding meeting should take 60-90 minutes. Treat it like a financial physical -- thorough and candid.

Don't Burn Bridges

Even after you have moved on, your old CPA may be the only person who can answer certain questions. Why was that depreciation method chosen? What was the basis calculation for that 2021 property transfer? Where did that NOL carryforward originate?

A professional, courteous departure makes it far more likely your old CPA will take your call six months later when your new CPA has a question. Send a brief, direct communication: thank them for their work, let them know you are moving your account, and request your records. No explanation is required, but hostility is counterproductive.

The Cost of Switching vs. the Cost of Staying

But staying with the wrong CPA has costs too, and they are usually larger:

• Missed planning opportunities. A CPA who does not understand S-Corp elections, Roth conversion strategies, or cost segregation studies cannot recommend them. You do not know what you are not being told.
• Errors and penalties. Recurring mistakes lead to IRS notices, amended returns, and sometimes penalties. The average IRS accuracy-related penalty is 20% of the underpayment.
• Stress and uncertainty. If you do not trust your CPA's work, you are spending mental energy second-guessing every number on your return.

For most people, the one-time cost of switching is recovered within one to two tax years through better planning, fewer errors, or both.

Frequently Asked Questions

Can my old CPA refuse to give me my tax records?

No. Under AICPA ET Section 1.400.200 and IRS Circular 230 Section 10.28, your CPA must provide your records upon request. Client-provided documents (originals you gave them) cannot be withheld for any reason, including unpaid fees. Member-prepared records like depreciation schedules and completed returns must also generally be provided within 45 days. If your CPA refuses, file a complaint with your state board of accountancy.

Do I need to tell my old CPA why I'm leaving?

No. You are not obligated to explain your reasons, and most CPAs do not expect an explanation. A brief, professional notice that you are transferring your account is sufficient. If you want to give feedback, that is your choice, but it is not required.

What if my old CPA made errors on past returns -- is the new CPA responsible for finding them?

Your new CPA will review your prior returns as part of onboarding, but their primary obligation is to your current and future filings. If they spot errors, they will recommend amending the affected returns. However, they are not conducting a formal audit of your old CPA's work. If you suspect significant errors, tell your new CPA explicitly so they can look for specific issues.

How far back should I request records?

At minimum, three years of filed returns. The standard IRS audit window is three years from the date of filing. If you have complex situations -- business ownership, real estate, carried-forward losses -- request five to seven years. For basis records on assets you still hold, you need records going back to when those assets were acquired, regardless of how long ago that was.

Can my new CPA contact my old CPA directly?

Yes, with your written authorization. Many CPAs prefer a direct professional-to-professional transfer, and this is often the smoothest path. Your new CPA will send a records request letter (or email) to your old CPA, typically with a signed authorization form from you. This is standard practice and should not be awkward for anyone involved.