About CA Tools

What we do

CA Tools builds free calculators that answer one question at a time: how much rent can my landlord raise, does my paycheck clear the exempt salary threshold, do I qualify for a utility discount. Every figure a calculator uses is sourced directly from the official California agency that publishes it — CARB, CPUC, DIR, EDD, FTB, or BOE, depending on the topic — and tracked with an effective date so it doesn't quietly go stale.

What we don't do

We don't require an account, sell your data, or give legal, tax, or financial advice. Every tool is an educational estimate, not an official determination — always confirm your specific situation with the relevant state agency or a licensed professional before acting on a result.

Editorial standards

See our Editorial & Methodology page for how each calculator is built and reviewed, and our Data Sources page for exactly where each figure comes from.