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Wrong results come first. Include the calculator URL, the inputs you used, the result shown, and the result you expected. A link to the statute, tariff, notice, or official calculator you used is especially helpful.

Report an outdated rate or a confusing sentence too. Rule-based pages show their last source-check date, but tariffs and laws can change after that date.

Calculator suggestions are welcome when the inputs can lead to one defensible result. Calcmemo avoids tools that would guess a personal eligibility decision, a company's internal policy, or a household-specific discount.

Calcmemo is maintained by one person, so replies can take time. The operator cannot decide an individual tax, legal, immigration, employment, insurance, or benefits case; the responsible authority or a qualified adviser should handle those questions.