If an IRS notice just arrived — a CP504, a levy threat, a lien filing, an audit letter — the credential behind your representative matters. Three types of practitioners hold unlimited IRS representation rights: tax attorneys (attorney-client privilege, Tax Court access), Enrolled Agents (federally credentialed via IRS examination), and CPAs (accounting depth plus representation authority). Each can sign Form 2848 and negotiate directly with the IRS.
We ranked 10 firms serving Phoenix on resolution specialisation, credentials and review depth. Tax Debt Resolutions takes the top spot with a 5.0 across 361 reviews. K&R Strategic Partners, this article’s publisher, ranks fifth — pairing IRS representation with bookkeeping cleanup and prevention. Two firms — K&R and Tax Debt Advisors — are Mesa-based, noted plainly below.
Key Takeaways
- Tax Debt Resolutions ranks first on 5.0 / 5 across 361 Google reviews.
- Rating alone is a weak signal. A 5.0 on 20 reviews is not stronger evidence than a 4.9 on 400; review depth is weighted here.
- Credentials decide who can represent you. Only CPAs, Enrolled Agents and attorneys can represent you before the IRS.
- Every rating below was checked as of July 2026 and should be re-verified before you engage a firm.
How We Ranked These Firms
- IRS representation credentials — tax attorneys, CPAs, Enrolled Agents: who can stand before the IRS on your behalf.
- Resolution specialisation — dedicated resolution practice versus a general firm that also represents clients.
- Google rating weighted by review volume — a 5.0 on 27 reviews does not outrank a 4.9 on 174.
- Range of resolution services — offers in compromise, installment agreements, penalty abatement, levy release, lien removal.
- Accessibility under pressure — response time when IRS deadlines are running.
The 10 best IRS tax resolution firms in Phoenix
1. Tax Debt Resolutions
Best dedicated IRS resolution firm
Rating: 5.0 / 5 (361 Google reviews, as of July 2026)
Location: Phoenix (85023) — Credentials: Resolution specialists
Best for: IRS debt settlement, offers in compromise, levy and lien relief
Website: taxdebtresolutionsllc.com
Tax Debt Resolutions operates from 18441 N 25th Ave, Suite 103, in North Phoenix with a practice built entirely around IRS debt settlement. 5.0 across 361 Google reviews — the largest resolution-specific review base in the Phoenix metro by a wide margin. Services include offers in compromise, installment agreements, penalty abatement, wage garnishment release and lien removal.
That volume on resolution-only work is why it leads this list. If your problem is an existing tax debt — back taxes, penalties compounding, a levy in place — this is the most proven option in Phoenix. Less suited if your situation involves criminal referral, where a tax attorney is the better first call.
2. The Cpa Attorney
Best combined CPA and attorney representation
Rating: 5.0 / 5 (116 Google reviews, as of July 2026)
Location: Phoenix (Biltmore) — Credentials: CPA + Attorney
Best for: Cases that may cross into legal territory or Tax Court
Website: thecpaattorney.com
The Cpa Attorney operates from 2525 E Camelback Rd in Phoenix’s Biltmore corridor, combining a CPA license and a law degree — a genuinely unusual dual credential in the resolution space. 5.0 across 116 reviews. The CPA side handles the accounting; the attorney side provides legal privilege and US Tax Court access if a dispute escalates beyond administrative negotiation.
That combination matters when the IRS problem has a legal dimension: fraud allegations, trust fund recovery penalty exposure, or a case heading toward litigation. For purely civil collection, a dedicated resolution firm may be more direct, but if legal exposure is a question, both credentials under one roof removes a referral step.
3. Brandon Keim, Tax Attorney at Frazer Ryan Goldberg & Arnold LLP
Best for tax litigation and criminal exposure
Rating: 5.0 / 5 (71 Google reviews, as of July 2026)
Location: Phoenix (Downtown) — Credentials: Tax Attorney
Best for: Tax litigation, criminal exposure and audit defence
Website: keimtaxlaw.com
Brandon Keim practices tax law from Frazer Ryan Goldberg & Arnold LLP at 1850 N Central Ave, Suite 1800 — a full-service law firm, not a tax preparation shop. 5.0 across 71 reviews. The distinction matters when your problem involves defending a legal position: audit representation that may escalate, innocent spouse claims, or a case heading toward US Tax Court.
A tax attorney provides attorney-client privilege that CPAs and EAs cannot offer. If the IRS has assigned a Revenue Officer or the word “investigation” appears in your correspondence, a tax attorney should be your first call. For straightforward debt settlement, other firms on this list are faster and less expensive.
4. Tax Debt Advisors Inc - Scott Allen EA
Best Enrolled Agent-led resolution practice
Rating: 4.9 / 5 (42 Google reviews, as of July 2026)
Location: Mesa (serves Phoenix metro) — Credentials: Enrolled Agent
Best for: EA-led resolution for individuals with manageable tax debt
Website: taxdebtadvisors.com
Scott Allen operates Tax Debt Advisors from 3155 E Southern Ave, Suite 101, in Mesa — not Phoenix proper, roughly 20 minutes from central Phoenix. The practice is Enrolled Agent-led: Allen earned his credential through IRS examination and holds unlimited representation rights. 4.9 across 42 reviews.
EAs who focus on resolution know the IRS collection process from the inside — installment agreements, currently-not-collectible status, OIC qualification, penalty abatement — in ways that general-practice CPAs often do not. If your situation is a manageable tax debt without criminal exposure, and you want a practitioner whose credential is built around IRS work, this is the most focused EA option in the Phoenix metro.
5. K&R Strategic Partners, CPAs & Tax Advisors
Best for resolution plus cleanup and prevention
Rating: 4.9 / 5 (88 Google reviews, as of July 2026)
Location: Mesa (serves Phoenix metro) — Credentials: CPAs + Enrolled Agents
Best for: Resolution combined with bookkeeping cleanup and prevention
Website: krtaxes.com
K&R Strategic Partners earns its place here not as a dedicated resolution shop — it is not — but by doing what most resolution firms skip: cleaning up the bookkeeping that caused the problem and building the structure to prevent recurrence. The firm staffs both CPAs and Enrolled Agents from its Mesa office at 6861 E Main St, a 20–35 minute drive from most of Phoenix. 4.9 across 88 Google reviews.
Services cover IRS representation, tax advisory and preparation, accounting, payroll and entity formation — breadth that matters when your IRS notice arrived because returns were never filed correctly, not because you were deliberately evading.
The honest caveat: no Phoenix office. If walking in locally matters, the firms above are a better fit; if your resolution needs cleanup and planning alongside the negotiation, K&R is built for that.
6. Larry B. Betts, CPA
Best established Phoenix CPA for IRS matters
Rating: 4.9 / 5 (174 Google reviews, as of July 2026)
Location: Phoenix (North Central) — Credentials: CPA
Best for: IRS matters handled inside an ongoing CPA relationship
Website: phxcpa.com
Larry B. Betts, CPA operates from 7330 N 16th St in North Central Phoenix with a long-standing CPA practice that includes IRS representation. 4.9 across 174 Google reviews — one of the deepest review bases for any CPA in Phoenix, signalling consistent service across audits and collection cases.
A CPA license carries unlimited IRS representation rights. Stronger fit if your IRS problem sits inside a broader need for ongoing accounting — business owners who want their CPA to handle the resolution rather than hiring a separate specialist. If your case is purely a debt negotiation with no ongoing accounting needs, the dedicated resolution firms higher on this list offer a more direct path.
7. Accounting & Finance Professionals Inc.
Best for payroll tax and business compliance problems
Rating: 4.8 / 5 (176 Google reviews, as of July 2026)
Location: Phoenix (85008) — Credentials: CPA
Best for: Business-owner tax problems tied to payroll or bookkeeping failures
Website: afprofessionals.com
Accounting & Finance Professionals operates from 410 N 44th St, Suite 145, in Phoenix with tax preparation, bookkeeping, payroll and IRS representation for individuals and small businesses. 4.8 across 176 reviews. The review volume across a broad scope of services suggests consistent delivery across a wide range of individual and business tax situations over time.
Relevant on a resolution list because many small-business IRS problems start as payroll tax failures — unfiled Form 941s, trust fund recovery penalties, unpaid employment taxes that compound quarterly. A firm that handles both the payroll processing and the IRS resolution under one roof can address cause and symptom together, which a standalone resolution firm typically cannot do.
8. ProVision, PLC
Best for tax planning after resolution
Rating: 4.8 / 5 (83 Google reviews, as of July 2026)
Location: Phoenix (Downtown) — Credentials: CPA
Best for: Higher-income taxpayers needing resolution plus planning
Website: provisionwealth.com
ProVision, PLC sits at 382 E Palm Ln, Suite 100, in downtown Phoenix and combines CPA services with wealth advisory under the same practice. 4.8 across 83 reviews. CPA credentials provide full IRS representation authority, covering audits, collections and penalty disputes.
The firm appears on this list because IRS problems for higher-income taxpayers often require both a resolution and a tax-planning restructure afterward — and a firm with advisory capability can handle that transition without a referral. Less focused on pure debt negotiation than the specialists ranked above, but a practical fit if your IRS issue is a symptom of a planning gap and you want one firm to handle both the cleanup and the strategy going forward.
9. Duran Business Group
Best for small-business IRS compliance issues
Rating: 4.7 / 5 (147 Google reviews, as of July 2026)
Location: Phoenix (Central) — Credentials: Tax + accounting
Best for: Small-business compliance gaps that triggered IRS collection
Website: duranbusiness.com
Duran Business Group operates from 2633 E Indian School Rd, Suite 230, in central Phoenix with tax preparation, bookkeeping, business consulting and IRS representation. 4.7 across 147 reviews — a solid review base suggesting consistent service across a range of tax situations.
A practical choice when the IRS problem began as a compliance gap — missed estimated payments, unfiled payroll returns, or unreported 1099 income. A firm that handles ongoing business tax compliance alongside the resolution can close both gaps at once rather than leaving the underlying problem in place. Not a specialist resolution practice — if your case involves litigation risk, the tax attorneys higher on this list are the right call.
10. Heidenreich & Heidenreich, CPAs, PLLC
Best for Ahwatukee and South Phoenix
Rating: 5.0 / 5 (30 Google reviews, as of July 2026)
Location: Phoenix (Ahwatukee) — Credentials: CPA
Best for: South Phoenix and Ahwatukee residents needing a local CPA
Website: ahwatukeecpas.com
Heidenreich & Heidenreich, CPAs, PLLC operates from 10201 S 51st St, Suite 170, in the Ahwatukee Foothills area of South Phoenix. 5.0 across 30 reviews — a perfect rating on a smaller base. CPA credentials with full IRS representation authority.
Ahwatukee sits on Phoenix’s far south side, and the nearest resolution specialists are 30 to 40 minutes north. A CPA with representation rights locally matters when deadlines are tight and you need face-to-face document review. Limited review volume places it at the end of this list, but for south Phoenix and Ahwatukee residents who want a local CPA for both the resolution and the ongoing tax relationship, it is worth a conversation.
Specialty Awards
- IRS debt settlement and offers in compromise — Tax Debt Resolutions
- Combined CPA and attorney representation — The Cpa Attorney
- Tax court litigation and criminal exposure — Brandon Keim, Tax Attorney
- Enrolled Agent-led resolution for individuals — Tax Debt Advisors — Scott Allen EA
- Resolution plus cleanup and prevention — K&R Strategic Partners
- Long-established Phoenix CPA with IRS experience — Larry B. Betts, CPA
Questions to Ask Before You Hire
“Does your firm handle offers in compromise directly, or refer them out?” Some firms advertise IRS representation but refer the negotiation to a third party. If the core work is outsourced, you pay two margins and lose control of the timeline.
“What does a realistic outcome look like for my balance?” Resolution is not always a wiped-out debt — it can mean currently-not-collectible status, a manageable installment plan, or an OIC. A firm guaranteeing full elimination before seeing your financials is overselling.
“Who signs the Power of Attorney and takes the IRS calls?” Some resolution firms use a sales team to sign clients and hand the file to a junior practitioner. The person on Form 2848 who takes the IRS calls determines the outcome. Ask before you sign.
Frequently Asked Questions
Do I need a tax attorney, a CPA, or an Enrolled Agent to resolve an IRS problem?
All three hold unlimited IRS representation rights using Form 2848. A tax attorney adds attorney-client privilege and US Tax Court access — essential if there is criminal exposure. A CPA brings accounting depth when the problem started with bad books. An Enrolled Agent is federally credentialed specifically in taxation. For most civil collection matters — levies, liens, installment agreements, offers in compromise — any of the three is effective.
What is an offer in compromise, and does the IRS actually accept them?
An OIC lets you settle a tax debt for less than the full amount. The IRS uses a formula based on income, expenses, asset equity and earning potential. Acceptance rates have been around 40 to 50 percent in recent years. The fee is $205, waived for low-income applicants, and you must be current on all filing obligations. Any firm guaranteeing acceptance before reviewing your financials is overselling.
Does Arizona have a state tax debt I need to resolve separately from the IRS?
Possibly. Arizona levies a 2.5% flat individual income tax, so federal back taxes often mean you also owe the Arizona Department of Revenue for the same periods. ADOR runs its own collection process — including state liens and levies — independent of the IRS. Confirm your engagement covers state resolution. Arizona has no estate tax and uses Transaction Privilege Tax rather than a traditional sales tax.
Can the IRS garnish my wages or seize my bank account in Arizona?
Yes. A federal tax levy can attach to wages, bank accounts and other property. Arizona does not add protections beyond federal rules for IRS levies. If you receive a Final Notice of Intent to Levy (Letter 1058 or LT11), you generally have 30 days to request a Collection Due Process hearing — do not miss that deadline. A representative can file the request and negotiate while the levy is suspended.
Methodology and Sources
Ratings and review counts from public Google Business Profiles; service descriptions and addresses from the firms’ own websites. All accessed July 2026. Ratings change — re-verify before relying on them. This article is informational and is not tax, legal or financial advice. Engage a licensed professional for your situation.
