Taxes Don’t Have to Be a Guessing Game

The IRS already knows what you owe — now you can too. Download our Know What You Owe toolkit and learn how to estimate your tax liability with confidence, avoid penalties, and plan ahead the smart way.

Created by AdminBooks, trusted by hundreds of business owners for bookkeeping, payroll, and tax planning.

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What You’ll Get Inside

Everything you need to estimate taxes with confidence and avoid penalties.

Know What You Owe Worksheet (Excel)

Quickly estimate your federal tax using last year’s return and the Safe Harbor Rule.

Step-by-Step Instructions (PDF)

Clear guidance on which tab to use (Same, Increased, Decreased) and how to enter your numbers.

Workshop Replay (Video)

A short walkthrough where we complete the worksheet together, step by step.

All resources are created by AdminBooks to help business owners plan ahead and stay compliant.

How It Works

Follow three simple steps to understand your estimated tax liability and plan with confidence.

Download the Toolkit

Get instant access to the worksheet, step-by-step instructions, and walkthrough video.

Enter Your Info

Use last year’s tax return to input your income and scenario—whether your income stayed the same, went up, or went down.

Review Your Estimated Tax Liability

See what you may owe based on the IRS Safe Harbor Rule so there are no surprises at tax time.

These tools are part of our ongoing effort to help business owners understand their numbers and pay only what’s legally required—no more, no less.

Ready to go beyond estimating?

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