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An Unfiled Return and a Deficiency Notice: Protect the Petition Deadline

An Unfiled Return and a Deficiency Notice: Protect the Petition Deadline

by Noah Green CPA CFE | Oct 25, 2026 | IRS Notices

The short version A missing tax return and a notice of deficiency create two separate tasks: establish the correct tax and protect the deadline for challenging the proposed deficiency in Tax Court. Preparing or sending a return to the IRS does not file a court...
When the IRS Prepares a Substitute Return: Reconcile the Record Before Responding

When the IRS Prepares a Substitute Return: Reconcile the Record Before Responding

by Noah Green CPA CFE | Oct 25, 2026 | IRS Notices

The short version When a required return is missing, the IRS can calculate tax using the information available to it. That calculation may leave out relevant deductions, credits, or other facts. The response starts with identifying whether the amount is proposed or...
Unfiled Tax Returns and an IRS Notice: What to Do First

Unfiled Tax Returns and an IRS Notice: What to Do First

by Noah Green CPA CFE | Oct 25, 2026 | IRS Notices

The short version Open the notice, identify the tax year and response deadline, and preserve every page. If it is a notice of deficiency, protect the Tax Court petition deadline while addressing the missing return. Filing that return does not extend the petition...

Why the IRS sends collection notices in waves, the budget-cycle pattern most people miss

by Noah Green CPA CFE | Apr 30, 2026 | Behind the IRS Curtain, IRS Notices

Thread: A (Behind the IRS Curtain) A tax-resolution practitioner notices the same thing every September: the firm’s phone volume doubles. Clients who have been quiet for months suddenly call in a single week saying “I got a letter from the IRS.”...

IRS CP523 Notice: 12 Questions Answered

by Noah Green CPA CFE | Apr 22, 2026 | Installment Agreements, IRS Notices

If you’ve received an IRS Notice CP523, you probably have more questions than answers. This guide walks the 12 most common CP523 questions, what the notice means, what the deadlines control, and what your options look like in week one and week four. Free Guide...

IRS CP523 Notice: Your 30-Day Action Plan to Save Your Installment Agreement

by Noah Green CPA CFE | Apr 15, 2026 | Installment Agreements, IRS Notices

If an IRS Notice CP523 just landed in your mailbox, you have 30 days before your installment agreement officially terminates, and before the IRS gains the right to levy your bank accounts and wages. Free Guide CP523 Survival Guide: try to save your installment...
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Call: (888) 533-3495 | noah@sheepdogtax.com

Sheepdog Tax and Sheepdog Tax Resolution are brands of Sheepdog Prosperity Partners LLC, a Texas limited liability company. The CPA title on this site refers only to Noah Green, individually licensed as a certified public accountant in Texas. This firm is not a CPA firm and its services are not regulated by the Texas State Board of Public Accountancy. An engagement with Sheepdog Prosperity Partners LLC begins only with a signed Master Services Agreement and per-matter Statement of Work. Information on this site is general and is not tax advice. © 2026 Sheepdog Prosperity Partners LLC Company, brands, and payment information.

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