Doubt as to Liability: How an Offer in Compromise Can Erase a Tax Bill You Never Actually Owed

Steve Perry

Published on: 15/09/2026

A doubt as to liability offer disputes whether an assessed tax is correct, not whether it can be paid. See how Form 656-L works, its limits, and when it applies.

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Missed the S Corp or Partnership Extension Deadline? Here's What Happens Next

Steve Perry

Published on: 10/09/2026

Missed the extended Form 1065 or Form 1120-S deadline? See how the CP162A penalty notice works and why relief options differ between partnerships and S corporations.

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How to Calculate (and Not Underpay) Your Q3 Estimated Tax Installment

Steve Perry

Published on: 09/09/2026

The Q3 estimated tax installment is not last year's bill divided by four. See how uneven income and withholding timing affect what is owed by September 15.

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The September 15 Deadline Countdown: Everything Business Owners Must File and Pay

Steve Perry

Published on: 08/09/2026

September 15, 2026, brings a Q3 estimated tax payment and the extended partnership and S corporation filing deadline together. See what business owners must file, pay, and plan next.

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