Contact us
Send us a message below, or email us directly. Active clients can also message their bookkeeper from the portal.
Send a message
Include a clear subject and as much detail as you can. We reply to the email on your account.
Email directly
We aim to reply within one business day, often sooner. Signing in before you write helps us find your account faster.
Security & privacy
We use encrypted connections for every page, secure authentication with password rules and sign-in rate limits, and vetted providers for bank linking — we never see or store your bank login. Your books and documents are accessible only to you and authorized SynapseBooks staff who work on your account. We do not sell personal data. Read more in our security FAQ and privacy policy.
Common questions
Many answers are in the FAQ — here are quick jumps: