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Tools

Run your own numbers first.

Most tax questions get answered with “it depends,” then a form asking for your email. These do the arithmetic in your browser, ask for nothing, and show every assumption behind the answer, including the ones usually left out.

S‑Corp savings estimator

Models both sides: payroll tax and the qualified business income deduction, including the wage cap that wipes out a sole proprietor’s deduction above the Section 199A threshold. Handles other W‑2 income too.

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Quarterly estimated tax

Clears the lower of the two safe harbors, gives you a dated payment schedule, treats withholding differently from estimates, and prices the penalty if you skip.

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Bookkeeping cleanup scope

Sized by workstream from months behind, volume, the state of your records, and whether personal and business money went through one account. That last one matters more than volume.

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True cost of an employee

Payroll taxes, workers compensation, a retirement match, and paid time off, giving both the loaded annual cost and the cost per hour actually worked.

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Cash runway

Projects month by month with growth, cost inflation, a collection lag, and a one-off payment, so you see the low point rather than a straight line.

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Break-even and profit target

Works back from the profit you want to keep after tax, and shows what a few points of margin are worth next to chasing more revenue.

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How to read the output

A calculator is a starting point, not an answer

Every tool here shows a range rather than a single figure, and lists what it leaves out. That is deliberate. A calculator that ignores the qualified business income deduction, state taxes, and your other income can produce a confident number that is wrong for your situation.

Use the result to decide whether a conversation is worth having. If the estimate is close to the cost of running the election, it almost certainly is.

How we approach tax planning

Read next

The writing behind the tools

S‑Corp election: how it works and what it saves

The mechanism behind the estimator, in plain English, including when the answer is no.

Read the article

LLC vs. S‑Corp vs. C‑Corp

Choosing the entity, and why most owner-operated businesses start in one place and move later.

Read the article

Quarterly estimated taxes without surprises

What changes about your payments once you are running payroll for yourself.

Read the article

Got a number you want checked?

Bring the estimate to a consultation and we’ll run it against your actual return.