{"abstract":"This document contains final regulations that provide guidance regarding the additional first year depreciation deduction under section 168(k) of the Internal Revenue Code (Code). The final regulations reflect and clarify the increase of the benefit and expansion of the universe of qualifying property, particularly to certain classes of used property, authorized by the Tax Cuts and Jobs Act. The final regulations affect taxpayers who deduct depreciation for qualified property acquired and placed in service after September 27, 2017.","action":"Final regulations.","agencies":[{"raw_name":"DEPARTMENT OF THE TREASURY","name":"Treasury Department","id":497,"url":"https://www.federalregister.gov/agencies/treasury-department","json_url":"https://www.federalregister.gov/api/v1/agencies/497","parent_id":null,"slug":"treasury-department"},{"raw_name":"Internal Revenue Service","name":"Internal Revenue Service","id":254,"url":"https://www.federalregister.gov/agencies/internal-revenue-service","json_url":"https://www.federalregister.gov/api/v1/agencies/254","parent_id":497,"slug":"internal-revenue-service"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2019/09/24/2019-20036.html","cfr_references":[{"chapter":null,"citation_url":null,"part":1,"title":26}],"citation":"84 FR 50108","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective date: These regulations are effective on September 24, 2019.","disposition_notes":null,"docket_ids":["TD 9874"],"dockets":[],"document_number":"2019-20036","effective_on":"2019-09-24","end_page":50150,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2019/09/24/2019-20036.xml","html_url":"https://www.federalregister.gov/documents/2019/09/24/2019-20036/additional-first-year-depreciation-deduction","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2019-20036?publication_date=2019-09-24","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2019-09-24/2019-20036/mods.xml","not_received_for_publication":null,"page_length":43,"page_views":{"count":11044,"last_updated":"2026-10-24 00:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2019-09-24/pdf/2019-20036.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2019-20036.pdf?1568751317","publication_date":"2019-09-24","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2019/09/24/2019-20036.txt","regulation_id_number_info":{"1545-BO74":{"issue":"201910","html_url":"https://www.federalregister.gov/regulations/1545-BO74/additional-first-year-depreciation-allowance-","title":"Additional First-Year Depreciation Allowance ","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201910&RIN=1545-BO74&operation=OPERATION_EXPORT_XML","priority_category":"Economically Significant"}},"regulation_id_numbers":["1545-BO74"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Hearing Speakers list for Agenda\nAdditional First Year Depreciation Deduction (REG-104397-18)","document_id":"IRS-2018-0018-0029"},{"title":"Hearing Agenda Attachment\nAdditional First Year Depreciation Deduction (REG-104397-18)","document_id":"IRS-2018-0018-0028"},{"title":"Hearing Agenda\nAdditional First Year Depreciation Deduction (REG-104397-18)","document_id":"IRS-2018-0018-0027"},{"title":"N/A","document_id":"IRS-2018-0018-0026"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/1545-BO74/additional-first-year-depreciation-allowance-","title":"Additional First-Year Depreciation Allowance "},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=IRS-2018-0018","supporting_documents_count":4,"docket_id":"IRS-2018-0018","regulation_id_number":"1545-BO74","title":"Additional First Year Depreciation Deduction (REG-104397-18)","checked_regulationsdotgov_at":"2019-09-26T02:30:08Z"},"regulations_dot_gov_url":null,"significant":true,"signing_date":null,"start_page":50108,"subtype":null,"title":"Additional First Year Depreciation Deduction","toc_doc":"Additional First Year Depreciation Deduction","toc_subject":null,"topics":["Income taxes","Reporting and recordkeeping requirements"],"type":"Rule","volume":84}