Accounting tools
Forecasts, tax math, due dates and report worksheets.
Four free tools for the accounting work that sits around invoicing — projecting revenue, getting the tax right, tracking when money is due, and the blank worksheets to write up a period once it's over. No account, no upload.
Reviewed 2026-08-11
Revenue forecast calculator
Model best/base/worst-case recurring revenue with growth, churn and seasonality, and see it charted month by month.
Tax calculator
Add or extract sales tax, VAT or GST on an amount, with market rate presets and support for multiple or compound taxes.
Due date calculator
Net 7/14/30/60/90, due on receipt, end of month or EOM+N — with weekend and holiday skipping, plus a reverse mode.
Financial report templates
Ten printable, correctly-labeled blank worksheets — profit and loss, cash flow, balance sheet, ageing, budgets and more.
A forecast, a rate, a date, and a record — four different jobs
These four tools sit at different points in the same cycle. The revenue forecast looks forward, projecting what income could look like from growth and churn assumptions you set. The tax calculator and due date calculator handle two small, exact questions that come up on almost every invoice — what tax applies, and when payment is actually due once terms, weekends and holidays are accounted for. The financial report templates look backward: blank, correctly-labeled worksheets for writing up what actually happened once a period closes.
None of them talk to each other, and none of them remember anything between visits — each is a single, stateless calculation or a blank page, by design. That's the right shape for a free browser tool and the wrong shape for running a business on, where the useful version is the one that keeps the customers, invoices and payments these numbers are actually drawn from.