Most invoicing and time tracking tools charge for every person you add. This works out what that comes to over a year, and what the same team costs on a flat per business price.
Their cost, a year
You would keep, a year
| Team size | Theirs | Billbooks | Difference |
|---|
The gap widens with every person, because they charge per seat and Billbooks charges per business.
Want to keep this? Email the result to yourself.
One email, just this result. No account needed.
Two tools can look similarly priced on the pricing page and be a long way apart by the end of the year. A plan at $11 a seat is $11 if you work alone and $1,320 if ten people need an account. A flat per business price does not move when you hire.
That is the whole of it. There is no discount involved and nothing to negotiate: it is a different way of charging, and which one suits you depends almost entirely on how many people need to get in.
Because a seat price is not always the bill. Harvest's pricing page says starting from on every paid tier, and on each one it says your base rate covers core features while additional invoices, projects, clients and tasks are billed on what you use. Those per-unit rates are not printed on the page, so nothing here or anywhere else can work out your real total from the outside.
This calculator therefore prices the floor: the seat cost before any usage billing. Your actual Harvest bill is that figure or more, never less, which is why the saving is shown as a minimum. If you want the documented version of how far that can go, we wrote up the 2026 change and the reported cases in our Harvest alternative piece.
Billbooks has no usage billing. The plan price is the price, and the only thing that changes it is moving plan.
Where these prices come from. Competitor prices are read from each company's own public pricing page and carry the date they were read. Billbooks prices are our own published prices, per business, from billbooks.com/pricing.
Prices change. If a figure here does not match what you are quoted, the company's own page is the authority, not this tool.
If you work alone, a per seat plan is often the cheaper one, and some of them have a free tier that a one person business can sit on indefinitely. This calculator will say so when that is the case rather than pretending otherwise. The argument for a flat price is a team argument, and it gets stronger the bigger the team.
Price is only half of it. The reason people stay on a plan they have outgrown is usually the thought of moving years of clients, projects, invoices and tracked time. Billbooks imports clients, contacts, projects, expenses, time entries and invoices from Harvest, and you can undo the whole import with one button if it does not look right.
No tool matches that yet. See every free tool, or use the Ask a question button to tell us what you need.