Sixty-seven calculators. No account. No email. Every number computed in your browser — nothing leaves your device.
Ask a question, get an answer with the paragraph of law behind it. No registration wall, no newsletter trap, no “download your result” form.
Business & tax
Hourly rate, quotation margin, break-even, liquidity, VAT, input tax, depreciation (AfA), investment deduction, company car, profit distribution.
Payroll & staff
Gross-to-net, employer cost, mini-job threshold, working-time account, holiday entitlement, wage garnishment exemption, continued pay.
Private life
Household budget, savings rate, pension gap, credit and interest, inheritance tax, child benefit, rent increase, utility settlement.
The international-facing calculators are being translated. The full set is currently German — every input label is a single term, and the results are numbers.
Why they are free — and what that has to do with trust
A calculator that asks for an email address before showing a result is a lead machine, not a tool. Ours run in the browser: no server round trip, no logging, no profile. That is also the reason we can claim it credibly — there is no backend that could store your input.
How we keep the numbers right
Every calculator reads its legal values from a register with a norm and a check date, not from a hard-coded number. If a rate changes, it changes in one place. Before release, each calculator is compared against the application's own implementation — the current run covers 432 test cases with zero deviations.
The same calculators, above your own books
In the program they sit directly above your real numbers — no copy-paste from the website into the software.
See pricingQuestions about the calculators
Do the calculators store my input?
No. They run entirely in your browser — there is no server round trip and no logging. That is also why no account is needed: there is no backend that could hold your data.
Why are most calculators German-only?
Because the values they use are German law: tax rates, contribution ceilings, thresholds. The formulas travel, the paragraphs do not. The international-facing ones are being translated first.
How current are the numbers?
Every value comes from a register with a norm and a check date rather than a hard-coded figure. If a rate changes, it changes once. The German register of legal values lists all 224 of them with sources.
Are the results binding?
No. They are an estimate to help you decide, not a legal statement. For a binding figure, your tax adviser or the authority is the address.
What a calculator can and cannot decide
A calculator answers a question about arithmetic. It does not answer a question about your situation: whether a company car is worth it depends on your mileage, your tax rate and how long you keep the vehicle — not only on the list price. That is why each result here comes with the assumptions it was built on.
The figures behind the calculators are legal values: contribution ceilings, tax rates, thresholds. They are kept in a register with a norm and a check date, so a change is made in one place and the date is visible. An estimate without a date is not an estimate, it is a rumour.
What that means for you: the number is a starting point for a conversation, with your adviser or with yourself. For a binding figure, the tax office or your accountant is the address — not a website, however carefully it calculates.
Why a result without its assumption is worthless
Two calculators can produce the same number from different premises. A pension gap of 700 euros per month means one thing with three percent return and another with six. The figure is only as good as the assumption behind it — and an assumption that is not shown cannot be checked.
That is why every result here names the input it depends on, and why the legal values carry a check date. If a contribution ceiling changes in January, the calculator does not silently produce a different answer — the date next to the value moves, and you can see that it moved.
What you should not do: treat a result as a decision. Treat it as the first sentence of a conversation that ends with your adviser.