Data stays local

Retainer calculator

Price a monthly retainer for hours, availability and support.

The result is a business estimate, not tax or accounting advice.

Enter assumptions

How does this calculator work?

A retainer reserves capacity, so it should not be only hours multiplied by a discounted rate.

Practical use

Include an availability premium, fixed service overhead, reporting and any recurring-client discount.

Limitations

Define rollover rules and rates for work beyond the allowance.

Frequently asked questions

Is my data uploaded?

No. Calculations run in your browser. History is stored locally on this device only.

Does the result include tax?

Taxes are not added automatically. Use one consistent basis for all inputs and account for your own tax situation.

How can I save the result?

Keep local history, copy the summary, download JSON or CSV, or print to PDF.

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