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Annual Tax Compliance Kit

This toolkit includes engagement letters, organizers, checklists and practice guides to help you comply with tax laws and effectively serve your clients.

Note: The 2020 Annual Tax Compliance Kit’s Individual Income Tax Return Checklists – Form 1040 series have been updated to reflect the tax provisions in the American Rescue Plan Act of 2021.

Download a handy reference of the key takeaways from the American Rescue Plan Act of 2021 and use it as a supplement to the 2020 Annual Tax Compliance Kit.

Download Summary

Note: The 2020 Annual Tax Compliance Kit’s checklists have been updated to reflect the tax provisions in the Consolidated Appropriations Act, 2021.

Also, the Vehicle Policy and Income Inclusion Guide has been updated to reflect the guidance in IRS Notice 2021-7. Download a handy reference of the key tax takeaways from the Consolidated Appropriations Act, 2021, and use it as a supplement to the 2020 Annual Tax Compliance Kit.

Download Summary

These resources are offered exclusively to AICPA Tax Section members. Join today to access these helpful tools. Sample the Annual Tax Compliance Kit with this free download: 2020 C Corporation Income Tax Return Checklist – Form 1120 (Long)

Download the free sample

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PPP Sample Engagement Letters
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2020 Individual Income Tax Return Checklist – Form 1040 (Long)
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Engagement letters

An engagement letter is a contract that establishes the services a practitioner will provide to his or her clients. Each engagement requires careful consideration to address its particular circumstances. We’ve provided sample engagement letters so you can tailor them to your clients’ needs.

These sample engagement letters and terms and conditions addendum have been developed in collaboration with CNA, the endorsed underwriter of the AICPA Professional Liability Insurance Program. Be sure to review your letters for completeness and accuracy with your firm's legal counsel and consider consulting with your firm’s professional liability insurance carrier.

2020 Amended Return Engagement Letter

Initiate a contract between you and your client for an amended tax return engagement.

2020 Audit Representation Engagement Letter

Initiate a contract between you and your client for an audit representation engagement.

2020 C Corporation Engagement Letter – Form 1120

Initiate a contract between you and your client for a C corporation income tax return engagement (Form 1120).

2020 Employee Benefit Plan Engagement Letter – Form 5500

Initiate a contract between you and your client for an employee benefit plan return engagement (Form 5500).

2020 Engagement Closure Letter

Clearly define the conclusion of each engagement using this template. This letter can be an important tool in the event of a professional liability claim.

2020 Estate and Inheritance Engagement Letter – Forms 706 and 8971

Initiate a contract between you and your client for an estate and inheritance tax return engagement (Forms 706 and 8971).

2020 Estate and Trust Engagement Letter – Form 1041

Initiate a contract between you and your client for an estate and trust tax return (Form 1041).

2020 Exempt Organization Engagement Letter – Form 990

Initiate a contract between you and your client for an exempt organization tax return engagement (Form 990).

2020 Gift Tax Engagement Letter – Form 709

Initiate a contract between you and your client for a gift tax return engagement (Form 709).

2020 Individual Tax Return Engagement Letter – Form 1040

Initiate a contract between you and your client for a 2020 individual income tax return engagement (Form 1040).

2020 Partnership Engagement Letter – Form 1065

Initiate a contract between you and your client for a partnership tax return engagement (Form 1065).

2020 Private Foundation Engagement Letter – Form 990-PF

Initiate a contract between you and your client for a private foundation tax return engagement (Form 990-PF).

2020 Report of Foreign Bank and Financial Accounts Engagement Letter

Initiate a contract between you and your client for an FBAR engagement (FinCEN Report 114).

2020 S Corporation Tax Return Engagement Letter - Form 1120-S

Initiate a contract between you and your client for a 2020 S corporation income tax return engagement (Form 1120-S).

2020 Sample Terms and Conditions Addendum

Address the administrative and legal elements of an engagement such as policies and limitations; include it with your engagement letters, where applicable.

2020 Tax Consulting Engagement Letter

Initiate a contract between you and your client for a tax consulting engagement.

2020 Tax Projections Engagement Letter

Initiate a contract between you and your client for a tax projections engagement.

COVID-19 Loan Application Assistance Service Engagement Letter

Use this engagement letter to initiate a contract between the client and CPA for services related to the COVID-19 loan application process.

PPP Sample Engagement Letters

These sample engagement letters are to be used when performing PPP loan application or forgiveness consulting engagements.

Organizers

A tax organizer is a client-facing document to help with the collection and submission of client information necessary to prepare a tax return.

The below templates are provided in fillable PDF and in Word (for Word versions, see the zip file). You can also add your company logo following these how-to steps.

2020 Corporation Income Tax Return Organizer – Forms 1120 and 1120-S

Provide an organizer to your client to help them gather information you need to prepare a 2020 corporate income tax return (Form 1120 or Form 1120-S).

2020 Employee Benefit Plan Organizer – Form 5500

Provide an organizer to your client to help them gather information you need to prepare a 2020 employee benefit plan return/report (Form 5500).

2020 Estate and Trust Tax Return Organizer – Form 1041

Provide an organizer to your clients to help them gather information you need to prepare a 2020 estate and trust tax return (Form 1041).

2020 Estate Tax Return Organizer – Form 706

Provide an organizer to your clients to help them gather information you need to prepare a 2020 estate and generation-skipping transfer (GST) return (Form 706).

2020 Exempt Organization Tax Return Organizer – Form 990

Provide an organizer to your client to help them gather information you need to prepare a 2020 exempt organization tax return (Form 990).

2020 Foreign National Tax Return Organizer – Form 1040-NR

Provide an organizer to your clients to help them gather information you need to prepare a 2020 foreign national tax return (Form 1040-NR and related returns).

2020 Gift Tax Return Organizer – Form 709

Provide an organizer to your client to help them gather information you need to prepare a 2020 gift tax return (Form 709).

2020 Individual Income Tax Return Organizer – Form 1040

Provide an organizer to your client to help them gather information you need to prepare a 2020 individual income tax return (Form 1040).

2020 Partnership Income Tax Return Organizer – Form 1065

Provide an organizer to your client to help them gather information you need to prepare a 2020 partnership tax return (Form 1065).

Checklists

Our annual checklists address issues related to a specific tax form and are used by tax preparers and reviewers during the return preparation. They are also used to identify planning opportunities and potential audit risks on a tax return.

The below checklists are provided in fillable PDF (for Word versions, see the zip file).

2020 C Corporation Income Tax Return Checklist – Form 1120 (Long)

Access a comprehensive checklist for complex 2020 C corporation returns or new clients that addresses an extensive list of tax planning and compliance topics.

2020 C Corporation Income Tax Return Checklist – Form 1120 (Short)

Access a moderately complex checklist for less complicated 2020 C corporation tax returns that addresses a condensed list of tax planning and compliance topics.

2020 C Corporation Income Tax Return Checklist – Form 1120 (Mini)

Access an abbreviated checklist for simpler 2020 C corporation tax returns that addresses a condensed list of tax planning and compliance topics.

2020 Employee Benefit Plan Checklist – Form 5500

Access a comprehensive checklist for 2020 employee benefit plans that addresses an extensive list of tax planning and compliance topics.

2020 Estate and Trust Income Tax Return Checklist – Form 1041 (Long)

Access a comprehensive checklist for complex 2020 estate and trust tax returns or new clients that addresses an extensive list of tax planning and compliance topics.

2020 Estate and Trust Income Tax Return Checklist – Form 1041 (Short)

Access a moderately complex checklist for less-complicated 2020 estate and trust returns that addresses a condensed list of tax planning and compliance topics.

2020 Estate and Trust Income Tax Return Checklist – Form 1041 (Mini)

Access an abbreviated checklist for simpler 2020 estate and trust tax returns that addresses a condensed list of tax planning and compliance topics.

2020 Estate Tax Return Checklist – Form 706

Access a comprehensive checklist for 2020 estate tax returns that addresses an extensive list of tax planning and compliance topics.

2020 Exempt Organization Business Income Tax Checklist – Form 990-T

Access a comprehensive checklist for 2020 exempt organization business tax returns that addresses an extensive list of tax planning and compliance topics.

2020 Exempt Organization Income Tax Return Checklist – Form 990

Access a comprehensive checklist for 2020 exempt organization tax returns that addresses an extensive list of tax planning and compliance topics.

2020 Exempt Organization Tax Checklist – Form 990-EZ (Short Form)

Access a comprehensive checklist for 2020 exempt organization (short form) tax returns that addresses an extensive list of tax planning and compliance topics.

2020 Foreign National Tax Return Checklist – Form 1040-NR

Access a comprehensive checklist for 2020 foreign national returns that addresses an extensive list of tax planning and compliance topics.

2020 Gift Tax Return Checklist – Form 709

Access a comprehensive checklist for 2020 gift tax returns that addresses an extensive list of tax planning and compliance topics.

2020 Individual Income Tax Return Checklist – Form 1040 (Long)

Access a comprehensive checklist for complex 2020 individual tax returns or new clients that addresses an extensive list of tax planning and compliance topics.

2020 Individual Income Tax Return Checklist – Form 1040 (Short)

Access a moderately complex checklist for less complicated 2020 individual tax returns that addresses a condensed list of tax planning and compliance topics.

2020 Individual Income Tax Return Checklist – Form 1040 (Mini)

Access an abbreviated checklist for simpler 2020 individual tax returns that addresses a condensed list of tax planning and compliance topics.

2020 Paid Preparer’s Due Diligence Checklist – Form 8867

Access a comprehensive checklist for 2020 paid preparer due diligence requirements associated with Sec. 6695(q) and its regulations.

2020 Partnership/LLC Income Tax Return Checklist – Form 1065 (Long)

Access a comprehensive checklist for complex 2020 partnership/LLC returns or new clients; it addresses an extensive list of tax planning and compliance topics.

2020 Partnership/LLC Income Tax Return Checklist – Form 1065 (Short)

Access a moderately complex checklist for less complicated 2020 partnership/LLC returns; it addresses a condensed list of tax planning and compliance topics.

2020 Partnership/LLC Income Tax Return Checklist – Form 1065 (Mini)

Access an abbreviated checklist for simpler 2020 partnership/LLC tax returns that addresses a condensed list of tax planning and compliance topics.

2020 Return of Private Foundation Checklist – Form 990-PF

Access a comprehensive checklist for 2020 private foundation tax returns that addresses an extensive list of tax planning and compliance topics.

2020 S Corporation Income Tax Return Checklist – Form 1120-S (Long)

Access a comprehensive checklist for complex 2020 S corporation returns or new clients that addresses an extensive list of tax planning and compliance topics.

2020 S Corporation Income Tax Return Checklist – Form 1120-S (Short)

Access a moderately complex checklist for less complicated 2020 S corporation tax returns that addresses a condensed list of tax planning and compliance topics.

2020 S Corporation Income Tax Return Checklist – Form 1120-S (Mini)

Access an abbreviated checklist for simpler 2020 S corporation tax returns that addresses a condensed list of tax planning and compliance topics.

2020 State Tax Nexus Checklist

Access a comprehensive checklist about 2020 state tax nexus considerations involving income, franchise, sales and use taxes.

Initial Business Return Filing Checklist

Help your business client effectively file their first-year return and make sure classifications and elections are appropriately selected and filed.

Practice guides

Our practice guides are publications on a specific topic or process that include relevant guidance, recent developments, best practices and recommendations for workflow and documentation.

2020 State Tax Nexus Guide

Learn about state tax nexus including the many types of nexus (affiliate, economic, click-through, cookie, etc.), the physical presence standard and more.

Tax Practice Quality Control Guide and Template

Understand and implement tax practice quality control measures related to leadership, ethics, client relationships, human resources, performance and monitoring.

2021 Vehicle Policy and Income Inclusion Guide

This guide includes information about employer policies regarding the use of company vehicles. It contains sample polices and calculation worksheets.

Bundled downloads by tax year

Tax Section

The go-to source for tax practitioners. Access all the AICPA’s Tax Section content on AICPA.org.

View Tax section

Terms and Conditions for Readers

Access to the Annual Tax Compliance Kit is intended as an individual benefit of Tax Section membership. The Annual Tax Compliance Kit is created by and copyrighted to the Association of International Certified Professional Accountants, which reserves all rights. Except in the context of performing client services, reproduction, redistribution, republication or resale of this product by the member granted access is prohibited. Should the Association omit or decline to enforce any aspect of these terms of use at any given time or instance, such non-enforcement does not constitute and should not be construed as a waiver of the Association’s rights as to any other or future instance. For more information about the terms of use for our Annual Tax Compliance Kit or to request permission for a use which exceeds these limitations, please contact Licensing, Rights & Information Services at copyright@aicpa.org.

The resources in our Annual Tax Compliance Kit are designed as educational and reference material for Tax Section members. They do not establish standards or preferred practices. Although much thought and effort have gone into the development of these resources, they are subject to change. These resources are issued as drafts only, and you retain responsibility for their final content. Please review them carefully and make any changes necessary for your specific use.

This site is brought to you by the Association of International Certified Professional Accountants, the global voice of the accounting and finance profession, founded by the American Institute of CPAs and The Chartered Institute of Management Accountants.

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