Professional Tax Research from Parker Tax Publishing - Expert Tax Anaylsts and IRS Guidance

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25 Volumes of Expert Analysis

Reach the right conclusion every time with 12,000+ pages of authoritative, straightforward analysis, written by the brightest minds in federal tax. Features more than 3,000 practical examples, 74,000 cites to primary sources, and hundreds of client letters, checklists, and other practice aids.

Complete Federal Tax Reporting

Parker’s biweekly email bulletins analyze and explain every significant federal tax development. Terse summaries get you up to speed in minutes. In-depth articles allow you to quickly master new rules, seize opportunities, steer clear of pitfalls, and shine with your clients.

Primary Sources Back to 1924

Whatever federal tax source document you're looking for, you'll find it in Parker's highly comprehensive primary source library. Code, Regs, IRS materials back to 1954, court decisions back to the Coolidge administration, every U.S. tax treaty - there all here and much more!

Professional Tax Research from Parker Tax Publishing - Expert Tax Anaylsts and IRS Guidance
Through extensive use of real-world examples, observations, cautionary notes, and practice tips, Parker’s analysis helps practitioners cut through the complexity of tax rules and achieve better results for their clients.
Professional Tax Research from Parker Tax Publishing - Expert Tax Anaylsts and IRS Guidance
— Accounting Today
 
An Overview of the Parker Tax Pro Library ...
Red Number 1 Comprehensive Explanation and Analysis. Parker’s explanation and analysis is authoritative and complete. With 12,000+ expertly written pages organized in 25 digital volumes, it provides in-depth coverage of the full range of federal tax topics.

Our explanations of the law aren’t just authoritative, they’re also utterly straightforward so you can gain understanding quickly, reach the right conclusion, and move on. More than 3,000 practical examples illustrate how the law applies in real-world situations and clarify complex rules.
 
Red Number 2 74,000 Cites to Authority. In professional tax research, it’s not always enough to find the answer to your question — often, you also need to know the authoritative source of the answer. That's why we rigorously cite to authority thorughout Parker's Explanation and Analysis. It's also why we always provide links to the underlying Code or Reg sections, court decisions, IRS guidance, letter rulings, JCT reports, tax treaties, and any other authoritative documents we cite.
 
Red Number 3 Comprehensive Reporting on Current Developments. Parker’s biweekly email bulletins keep you fully apprised of current developments and their potential impact on your clients. These terse, no-nonsense reports enabling you to become fully informed with a small investment of time. Breeze through our tax briefs to gain an overview of changes in minutes. Read in-depth articles for expert knowledge of the issues most important to you.
 
Red Number 4 Client Letters, Checklists, and Bob Jenning’s Practice Aids. The Pro Library’s practice aids save you time and make client communications easier and more effective. You’ll have access to 300+ sample client letters, tax election statements, checklists, and Bob Jenning’s practice aids. Use these well written gems as is, or modify them as you see fit.
 
Red Number 5 Comprehensive Tax Cases and IRS Materials. Parker’s vast library of federal tax cases, IRS guidance, and private IRS rulings provides deep insight into how the federal courts and the IRS approach tens of thousands of tax issues. Extending from 1924-present, the Tax Library’s case law databases include over 97,000 full-text opinions.

The Pro Library’s highly comprehensive collection of IRS documents, going back to 1954, includes more than 144,000 full text documents, including:
  • Revenue Rulings (1954-present)
  • Revenue Procedures (1955-present)
  • IRS Notices (1980-present)
  • PLRs and TAMs (1981-present)
  • IRS Publications
  • Penalties Handbook
  • Audit Technique Guides
  • Settlement Guidlines
  • Complete Internal Revenue Manual
 
Red Number 6 Code, Regs, and Other Key Materials. Updated Internal Revenue Code (with complete section histories), Regs, and Proposed Regs: Check. Tax Legislation and JCT reports: Check. Every U.S. Tax Treaty currently in effect: Check. These vital documents are the cornerstone of any tax library. Parker’s clean formatting and handy navigation aids makes working with them a snap.
 
Red Number 7 Continuous Year-Round Updates. One of the biggest drawbacks of other budget-friendly tax research packages is that the editorial content is only updated annually. We update ours continuously throughout the year. That makes a big difference when you’re trying to get up to speed on new rules and advise clients on their impact.
Row of Professional Books
Visualization: This is what 2% of our complete library would look like if we printed it.
Of course we’d never print it, because it works so well as an online service.
What Our Customers
are Saying ...
Blue Quotation Mark Finding Parker was like finding an old friend again! I love the way you address each topic so completely. Your analysis is excellent and consistently on point."
— Ted Wendler, CPA
Jacksonville, FL
Blue Quotation Mark I love your product! We evaluated it side-by-side with Thomson-Reuters, and everyone in the office was just blown away by how much easier it was to find answers!"
— Andy Plagens, CPA
Dallas, TX
Blue Quotation Mark You have the best and most informative newsletter. Thank you for all your good work."
— Nina Kavich, CPA
Fremont, NE
Blue Quotation Mark The year-end tax planning letters are fantastic. My clients really appreciate the clarity. I’m so glad that I found your tax service ... I love it. Thank you very much!"
— Mark Hesse, CPA
Houston, TX
★★★★★
Voted #1 Tax Research Software
— The CPA Journal
 
LIMITED TIME OFFER
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Save 25% on a 1-Year Subscription!
Order by 1/23/2026 and pay just $422 for a 1-year subscription. Get unlimited access to Parker’s expert analysis, biweekly tax bulletins, client letters and other practice aids, and comprehensive primary source library.


Red Click to Order Button
 

(c) 2026 Parker Tax Publishing  

 
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25 Volumes of Expert
Explanation & Analysis

Reach the right conclusion every time with 12,000+ pages of authoritative, straightforward analysis, written by the brightest minds in federal tax. Features more than 3,000 practical examples, 74,000 cites to primary sources, and hundreds of client letters, checklists, and other practice aids.

Comprehensive Federal
Tax Reporting

Parker’s biweekly email bulletins analyze and explain every significant federal tax development. Terse summaries get you up to speed in minutes. In-depth articles allow you to quickly master new rules, seize opportunities, steer clear of pitfalls, and shine with your clients.

Complete Primary
Sources Back to 1924

Whatever federal tax source document you're looking for, you'll find it in Parker's highly comprehensive primary source library. Code, Regs, IRS materials back to 1954, court decisions back to the Coolidge administration, every U.S. tax treaty - there all here and much more!

Professional Tax Research from Parker Tax Publishing - Expert Tax Anaylsts and IRS Guidance
Through extensive use of real-world examples, observations, cautionary notes, and practice tips, Parker’s analysis helps practitioners cut through the complexity of tax rules and achieve better results for their clients.
Professional Tax Research from Parker Tax Publishing - Expert Tax Anaylsts and IRS Guidance
— Accounting Today
 
Stand Aside CCH, RIA, & Bloomberg.
Easy, Affordable Tax Research is Back.

Prices for comprehensive tax research packages have been soaring for years, and the reason is no mystery. Market concentration and high corporate overhead have provided the "Big 3" with every incentive to set prices sky-high and spend the bare minimum to maintain their products.

Enter, Parker Tax Publishing. Parker was created by the same talented group who revolutionized tax publishing a few years back with a company named Kleinrock Publishing. Same founder/publisher. Same star editors. Same entrepreneurial spirit: we shook the industry up once, we’re doing it again, and you’re going to be the beneficiary.

We do what our competitors won’t: provide a comprehensive, easy-to-use federal tax service at a price that actually makes sense for small firms and sole practitioners.

 
An Overview of the Parker Tax Pro Library
 
Red Number 1 Comprehensive Explanation and Analysis. Parker’s explanation and analysis is authoritative and complete. With 12,000+ expertly written pages organized in 25 digital volumes, it provides in-depth coverage of the full range of federal tax topics:
  1. Individuals
  2. Partnerships and LLCs
  3. S Corporations
  4. C Corporations
  5. Income Taxation of Estates and Trusts
  6. Exempt Organizations
  7. Gross Income and Exclusions
  8. Individual and Nonbusiness Deductions
  9. Business Deductions and Losses
  10. Tax Credits
  11. Property Transactions
  12. Compensation and Benefits
  13. Retirement Plans
  14. Foreign Transactions
  15. Employment Taxes
  16. Farming and Ranching Taxation
  17. Estate, Gift, and Generation-Skipping Transfer Taxes
  18. Other Taxes
  19. Tax Accounting
  20. Tax Returns and Payments
  21. IRS and Judicial Procedure
  22. Tax Practice
  23. Net Investment Income Tax (NIIT)
  24. Healthcare Taxes and Credits
  25. Qualified Business Income Deduction

Our explanations of the law aren’t just authoritative, they’re also utterly straightforward so you can gain understanding quickly, reach the right conclusion, and move on. More than 3,000 practical examples illustrate how the law applies in real-world situations and clarify complex rules.

 
 
Red Number 2 74,000 Cites to Authority. In professional tax research, it’s not always enough to find the answer to your question — often, you also need to know the authoritative source of the answer. That's why we rigorously cite to authority throughout Parker's Explanation and Analysis. It's also why we always provide links to the underlying Code or Reg sections, court decisions, IRS guidance, letter rulings, JCT reports, tax treaties, and any other authoritative documents we cite.
 
Red Number 3 Comprehensive Reporting on Current Developments. Parker’s biweekly email bulletins keep you fully apprised of current developments and their potential impact on your clients. These terse, no-nonsense reports enabling you to become fully informed with a small investment of time. Breeze through our tax briefs to gain an overview of changes in minutes. Read in-depth articles for expert knowledge of the issues most important to you.
 
Red Number 4 Client Letters, Checklists, and Bob Jenning’s Practice Aids. The Pro Library’s practice aids save you time and make client communications easier and more effective. You’ll have access to 300+ sample client letters, tax election statements, checklists, and Bob Jenning’s practice aids. Use these well written gems as is, or modify them as you see fit.

(product overview continues below)
 
Row of Professional Books
Visualization: This is what 2% of our complete library would look like if we printed it.
Of course we’d never print it, because it works so well as an online service.
Red Number 5 Comprehensive Tax Cases and IRS Materials. Parker’s vast library of federal tax cases, IRS guidance, and private IRS rulings provides deep insight into how the federal courts and the IRS approach tens of thousands of tax issues. Extending from 1924-present, the Tax Library’s case law databases include over 97,000 full-text opinions:
  • U.S. Supreme Court
  • Circuit Courts of Appeals
  • Tax Court Reported Opinions
  • Tax Court Memo and Summary Cases
  • U.S. District and Bankruptcy Courts
  • U.S. Court of Federal Claims
  • Board of Tax Appeals (BTA)
The Pro Library’s highly comprehensive collection of IRS documents, going back to 1954, includes more than 144,000 full text documents:
  • Revenue Rulings (1954-present)
  • Revenue Procedures (1955-present)
  • IRS Notices (1980-present)
  • PLRs and TAMs (1981-present)
  • IRS Publications
  • IRS Announcements
  • Treasury Decision Preambles
  • Circular 230
  • Penalties Handbook
  • Audit Technique Guides
  • Settlement Guidlines
  • Complete Internal Revenue Manual
Every Revenue Procedure, Revenue Ruling, and Notice includes headnote text indicating whether it's been modified, clarified, amplified, superseded, revoked, or obsoleted by subsequent IRS guidance.
Red Number 6 Quick Reference Library. Need a quick answer on the amount of a credit, a tax rate, a phaseout range, the standard mileage rate, or a common tax rule? Parker’s Quick Reference Library provides you with instant access to reliable, up-to-date answers to hundreds of recurring questions. Links to related sections of Parker’s expert analysis make it easy to drill down when the situation warrants.
 
Red Number 7 Code, Regs, and Other Key Materials. Updated Internal Revenue Code (with complete section histories), Regs, and Proposed Regs: Check. Tax Legislation and JCT reports: Check. Every U.S. Tax Treaty currently in effect: Check. These vital documents are the cornerstone of any tax library. Parker’s clean formatting and handy navigation aids makes working with them a snap.
 
Red Number 8 Continuous Year-Round Updates. One of the biggest drawbacks of other budget-friendly tax research packages is that the editorial content is only updated annually. We update ours continuously throughout the year. That makes a big difference when you’re trying to get up to speed on new rules and advise clients on their impact.
 
Red Number 9 Easy, Powerful Search Engine.
You won’t need a Ph.D in "Search-ology" to get great results with Parker Tax Pro Library. Things that take half a dozen steps in other products take one or two steps in ours. Search results come up instantly and browsing them is a snap. Simplicity is the guiding principal behind our design, and you’ll experience it at every turn.
 
What Our Customers are Saying ...
Blue Quotation Mark Finding Parker was like finding an old friend again! I love the way you address each topic so completely. Your analysis is excellent and consistently on point."
— Ted Wendler, CPA
Jacksonville, FL
Blue Quotation Mark I love your product! We evaluated it side-by-side with Thomson-Reuters, and everyone in the office was just blown away by how much easier it was to find answers!"
— Andy Plagens, CPA
Dallas, TX
Blue Quotation Mark You have the best and most informative newsletter. Thank you for all your good work."
— Nina Kavich, CPA
Fremont, NE
Blue Quotation Mark The year-end tax planning letters are fantastic. My clients really appreciate the clarity. I’m so glad that I found your tax service ... I love it. Thank you very much!"
— Mark Hesse, CPA
Houston, TX
★★★★★
Voted #1 Tax Research Software
— The CPA Journal
 
LIMITED TIME OFFER
Save 25% on a 1-Year Subscription!
Order by January 23rd and pay just $422 for a 1-year full-access subscription. You'll have unlimited access to Parker’s expert analysis, biweekly tax bulletins, client letters and other practice aids, and comprehensive primary source library.


Red Click to Order Button
 
 

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