Quick Reads
Short answers to common tax questions
Five-minute explainers sourced to IRS guidance, by Keshav Bansal. For in-depth articles, see the blog.
Fixing a Prior-Year S-Corp Payroll Error: W-2c, W-3c and Form 941-X
How to correct a 2025 S-corp payroll mistake: when to file Form W-2c/W-3c, one Form 941-X per quarter, and which other returns may need amending.
How Much Is the Estimated Tax Penalty? Form 2210, Safe Harbors and a Worked Example
How the IRC §6654 estimated tax penalty is calculated, the 90%/100%/110% safe harbors, Form 2210 waivers and annualizing, with a rough worked example.
Multi-Member to Single-Member LLC: Do You Need a New EIN? Final 1065 and Rev. Rul. 99-6
When an LLC drops to one member the partnership terminates: file a final Form 1065, the LLC keeps its EIN, and Rev. Rul. 99-6 sets the buyout treatment.