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https://www.tn.gov/content/dam/tn/revenue/documents/notices/sales/sales26-01.pdf

https://www.irs.gov/newsroom/treasury-irs-issue-guidance-on-the-additional-first-year-depreciation-deduction-amended-as-part-of-the-one-big-beautiful-bill

https://www.irs.gov/newsroom/treasury-irs-issue-proposed-regulations-reflecting-changes-from-the-one-big-beautiful-bill-to-the-threshold-for-backup-withholding-on-certain-payments-made-through-third-parties

https://www.irs.gov/newsroom/irs-announces-first-day-of-2026-filing-season-online-tools-and-resources-help-with-tax-filing

https://www.irs.gov/newsroom/treasury-irs-provide-guidance-on-the-new-deduction-for-car-loan-interest-under-the-one-big-beautiful-bill

https://www.irs.gov/newsroom/irs-sets-2026-business-standard-mileage-rate-at-725-cents-per-mile-up-25-cents  

The U.S. Postal Service (USPS) recently adopted final regulations affecting the postmark date of mailed items. Effective Dec. 24, 2025, the regulations clarify that a machine-applied postmark indicates the date of the “first automated processing operation” at a processing facility. Due to the new regulations, a mailed item’s postmark may be several days later than

https://www.tn.gov/content/dam/tn/revenue/documents/tax_manuals/december-2025/Tax-Manual-Updates.pdf

The IRS recently updated frequently asked questions (FAQs) regarding changes to the limitation on the deduction for business interest expense (Fact Sheet 2025-09) and the Premium Tax Credit (Fact Sheet 2025-10) under the One Big Beautiful Bill (OBBB). For tax years beginning after Dec. 31, 2024, the OBBB amended Section 163(j) by: Allowing taxpayers to