Sage Timeslips is time and billing software for firms that bill by the hour, and it has been the default in small US law and accounting practices for a long time. It is narrow on purpose. It captures time, applies the right rate, and produces an invoice a client will pay without arguing.
What it does well
Rate handling is the reason firms stay. Rates by timekeeper, by client, by matter and by task, with overrides that cascade in the order a real firm expects. Anyone who has tried to model a blended rate or a client specific discount in a general purpose tool knows why that matters.
The bill itself is the other reason. Timeslips produces the itemized, narrative style invoice that professional clients expect, including work in progress review before anything goes out, and the LEDES export that corporate clients increasingly demand from their outside counsel.
Where it fits
Small to mid sized professional firms in the United States, typically two to fifty timekeepers. It is not practice management, it is not a CRM, and it will not run your matters. It bills, and it bills well.
Where it frustrates people
This is Windows desktop software and it makes no apology for it. Remote work means a hosted desktop or a VPN, and firms that went fully distributed have found that friction hard to live with. The interface is dated even by the standards of this list, onboarding a new timekeeper takes real training, and the cloud native competition has closed a lot of the functional gap while being considerably nicer to use. Buy it for the rate engine and the billing, not for the experience.
United States
Canada
