Rough remaining tax to spread across quarterly estimates after withholding. Use the formulas and examples; change one input at a time.

No. Educational estimates only. Confirm with primary sources and professionals.

How fresh are defaults?

Defaults cite as-of dates on data pages or tool notes.

Yes — keep the attribution link on the parent page.

No ad script loader or shared pub-id is embedded here.

Check units and model limits, then contact with URL and inputs.

Estimated quarterly payment sketch

One-sentence answer: Take expected total tax minus withholding already done, then divide by remaining quarters.

Educational calculator. Formulas are plain text. Replace defaults with your documents when accuracy matters.

Expected total tax

Already withheld

Remaining quarters

How it is calculated

remaining = max(0, total − withheld); per_quarter = remaining / max(1, quarters). Not IRS safe-harbor logic.

Worked example

$25k tax, $12k withheld, 2 quarters → $6.5k per quarter sketch.

Limits

Not a substitute for official quotes, tax software, or licensed advice.
Local rules and product terms can differ from this simplified model.
Static page: inputs are not stored on a server.

Embed:

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<p><a href="https://equitydue.com/tools/quarterly-estimate/">Estimated quarterly payment sketch by EquityDue</a></p>

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Disclaimer

Educational use only. Not tax, legal, investment, or purchasing advice.

Common questions

What is this for?: Rough remaining tax to spread across quarterly estimates after withholding. Use the formulas and examples; change one input at a time.
Is this advice?: No. Educational estimates only. Confirm with primary sources and professionals.
How fresh are defaults?: Defaults cite as-of dates on data pages or tool notes.
Can I embed it?: Yes — keep the attribution link on the parent page.
Any AdSense code?: No ad script loader or shared pub-id is embedded here.
Result looks wrong?: Check units and model limits, then contact with URL and inputs.