CloseRadar Blog
Regulatory13 min readOBBBA Tax Changes 2026: The Small-Firm Guide
OBBBA tax changes 2026 add new SALT caps, tip and overtime W-2 reporting, and QBI limits. Here is what small firms must fix before filing season.
Regulatory8 min readForm 1040 Changes 2026: What's New This Filing Season
Form 1040 changes 2026: new standard deduction, senior deduction, tips and overtime deductions, and what's now permanent. See the full breakdown.
Regulatory8 min readTax Extension Deadline October 2026: What Can and Cannot Wait
The tax extension deadline October 2026 falls on Oct 15 for 1040 and 1120 filers. See what needs action now and what genuinely can wait.
Regulatory9 min read1099-K Threshold 2026: Why the $600 Rule Got Reversed
The 1099-K threshold 2026 rule reverted to $20,000 and 200 transactions under OBBBA. See what changed, what stayed, and what to tell clients.
Regulatory8 min readIRS Standard Mileage Rate 2026: 72.5 Cents per Mile
The IRS standard mileage rate 2026 is 72.5 cents per mile for business driving, up 2.5 cents. See every rate, rule change, and quick win for tax season.
Regulatory8 min readEstimated Tax Due Dates 2026: Quarterly Calendar
Estimated tax due dates 2026: Q1 April 15, Q2 June 15, Q3 Sept 15, Q4 Jan 15, 2027. Full calendar for individuals, S-corps, C-corps, and partnerships.