How the 2017 Tax Cuts and Jobs Act Affected Individuals and the Economy
This paper examines the Tax Cuts and Jobs Act (TCJA) of 2017, signed into law on December 22, 2017, comparing its provisions with prior tax law and assessing its impact on individual taxpayers, businesses, and the broader economy. The paper covers key individual reforms — including changes to income tax brackets, the child tax credit, standard deductions, mortgage interest deductions, and SALT limits — as well as major business reforms such as the reduction of the corporate tax rate to 21 percent, the introduction of repatriation tax, the elimination of the corporate AMT, and new pass-through deductions. The analysis draws on Tax Foundation data and relevant tax literature to evaluate both the short- and long-term economic implications of the Act.
- Introduction: Legislative background and scope of TCJA
- Individual Tax Reforms: Changes to rates, deductions, and credits for individuals
- Business Tax Reforms: Corporate rate cuts, repatriation, and pass-through rules
- Conclusion: Summary of TCJA's overall economic and tax impact
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What makes this paper effective
- Clear before-and-after comparisons throughout each section make it easy to see exactly what changed under TCJA versus prior law.
- The paper covers a broad range of provisions — individual, business, and economic — providing a comprehensive overview without losing focus.
- Appendix tables (Tax Foundation data) are referenced in the text and support the quantitative claims effectively.
Key academic technique demonstrated
The paper demonstrates systematic comparative analysis: each provision is presented by first stating the prior law rule, then the TCJA change, and finally the practical effect. This structure makes the argument easy to follow and allows readers to assess the magnitude of each reform independently.
Structure breakdown
The paper opens with a brief legislative history of TCJA and its scope, then moves into two substantive sections — individual tax reforms (covering income brackets, credits, deductions, and special provisions) and business tax reforms (covering corporate rates, repatriation, AMT, and pass-through rules). A short conclusion summarizes the overall impact. Appendices provide supporting tax-rate tables for single filers, joint filers, and corporations.
Introduction
The Tax Cuts and Jobs Act (TCJA) of 2017 introduced significant tax changes affecting individual taxpayers, businesses, and the broader economy. The legislation was signed into law on December 22, 2017, by President Donald Trump. Three days earlier, on December 19, 2017, both the U.S. Senate and the U.S. House of Representatives had passed the bill by votes of 51–48 and 227–203, respectively. Most provisions of the TCJA are effective from January 1, 2018, through December 31, 2025. This paper compares the prior tax law with the current provisions of the TCJA and highlights the impact of these tax changes on individual taxpayers, businesses, and the economy in general.
References
Marsan, D. (2018). The Tax Cuts and Jobs Act of 2017 (TCJA) and its impact on investors, their trusts, investment entities, retirement plans and estates — Part 1: Tax reform for individuals. Journal of Taxation of Financial Products, 15(4), 11–52.
Smith & Howard. (2018, March). 2018 Tax Cuts & Jobs Act overview. Retrieved from https://www.smith-howard.com/2018-tax-cuts-jobs-act-overview/
Tax Foundation. (2017). Preliminary details and analysis of the Tax Cuts and Jobs Act (No. 241). Retrieved from https://files.taxfoundation.org/20171220113959/TaxFoundation-SR241-TCJA-3.pdf
Appendix A: Changes in Individual Tax Rates for a Single Filer
Table A1 — Changes in Tax Rates for a Single Filer
2017 Tax Rate: 10% | 2017 Bracket: $0–$9,525 | 2018–2025 Rate: 10% | 2018–2025 Bracket: $0–$9,525
2017 Tax Rate: 15% | 2017 Bracket: $9,525–$38,700 | 2018–2025 Rate: 12% | 2018–2025 Bracket: $9,525–$38,700
2017 Tax Rate: 25% | 2017 Bracket: $38,700–$93,700 | 2018–2025 Rate: 22% | 2018–2025 Bracket: $38,700–$82,500
2017 Tax Rate: 28% | 2017 Bracket: $93,700–$195,450 | 2018–2025 Rate: 24% | 2018–2025 Bracket: $82,500–$157,500
2017 Tax Rate: 33% | 2017 Bracket: $195,450–$424,950 | 2018–2025 Rate: 32% | 2018–2025 Bracket: $157,500–$200,000
2017 Tax Rate: 35% | 2017 Bracket: $424,950–$426,700 | 2018–2025 Rate: 35% | 2018–2025 Bracket: $200,000–$500,000
2017 Tax Rate: 39.6% | 2017 Bracket: $426,700+ | 2018–2025 Rate: 37% | 2018–2025 Bracket: $500,000+
Source: Tax Foundation
Appendix B: Changes in Individual Tax Rates for Married, Joint Filers
Table B1 — Changes in Tax Rates for Married, Jointly Filing
2017 Tax Rate: 10% | 2017 Bracket: $0–$19,050 | 2018–2025 Rate: 10% | 2018–2025 Bracket: $0–$19,050
2017 Tax Rate: 15% | 2017 Bracket: $19,050–$77,400 | 2018–2025 Rate: 12% | 2018–2025 Bracket: $19,050–$77,400
2017 Tax Rate: 25% | 2017 Bracket: $77,400–$156,150 | 2018–2025 Rate: 22% | 2018–2025 Bracket: $77,400–$165,000
2017 Tax Rate: 28% | 2017 Bracket: $156,150–$237,950 | 2018–2025 Rate: 24% | 2018–2025 Bracket: $165,000–$315,000
2017 Tax Rate: 33% | 2017 Bracket: $237,950–$424,950 | 2018–2025 Rate: 32% | 2018–2025 Bracket: $315,000–$400,000
2017 Tax Rate: 35% | 2017 Bracket: $424,950–$480,050 | 2018–2025 Rate: 35% | 2018–2025 Bracket: $400,000–$600,000
2017 Tax Rate: 39.6% | 2017 Bracket: $480,050+ | 2018–2025 Rate: 37% | 2018–2025 Bracket: $600,000+
Source: Tax Foundation
Appendix C: Corporate Tax Rates Under Prior Law
Table C1 — 2017 Corporate Tax Rates
15% | Taxable Income: $0–$50,000
25% | Taxable Income: $50,001–$75,000
34% | Taxable Income: $75,001–$10,000,000
35% | Taxable Income: Over $10,000,000
Source: Smith & Howard
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