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Free Tools

Quick answers, with your own numbers.

Small tools I built for business owners. Each one answers one question, right on the page.

  • Free
  • Nothing saved or sent
  • No sign-up

Nothing you type on these pages leaves your screen. The math runs in your own browser, and using a tool won’t put you on a mailing list.

Taxes

S Corp Breakeven Calculator

Would electing S corporation status save you money this year, after what it costs to run one?

Federal and Hawaii tax, for the 2025 and 2026 tax years.

Taxes

GET Pass-On Calculator

How much GET can you add to a price in Hawaii, and what do you charge to keep the price you want?

Example: to keep $1,000, charge $1,047.12. The most GET you can add is 4.712%, not 4.5%.

Taxes

Vacation Rental Tax Calculator

What do GET, the state TAT and the county TAT come to on a stay, and what do you keep?

Example: 5 nights at $250 a night with a $150 cleaning fee. Add the taxes to the bill and the guest pays $1,661.97.

Profit

Price or Overhead

Which is worth more to your profit: a small price rise or a cut in overhead?

Example: on $600,000 of sales and $90,000 of overhead, a 3% price rise adds $18,000 and a 10% overhead cut adds $9,000.

Books

Books Health Check

Do your books need catching up, keeping current, or are they ready for planning ahead?

Ten yes or no questions, about two minutes. A self check, not a diagnosis.

Ink & Crucible

A short note from me, now and then.

Money, books and running a small business in Hawaii, in plain words.

Unsubscribe any time.

Good answers start with good books.

I go through your QuickBooks and show you what I find, whether or not you hire me.