If you manage more than one bank account — multiple businesses, or bookkeeping for several clients — printing checks correctly means keeping each account's routing number, account number, and check sequence completely separate.
What to keep isolated per account
- Routing and account numbers — never shared between accounts, obviously, but worth double-checking before every print run if you're switching between accounts often.
- Check number sequence — each account should have its own running sequence. Mixing accounts into one shared number sequence makes reconciliation much harder.
- Signature and logo — if different accounts belong to different businesses, each needs its own branding and authorized signer.
A workflow that avoids mistakes
The safest approach is software that treats each bank account as a fully separate profile — its own details, its own check number sequence, its own register — rather than one shared template you manually adjust each time. That removes the most common failure mode: forgetting to update the routing number after switching accounts.
Check Writer 123 supports unlimited bank accounts, each with its own details, check sequence, and register, so switching between them doesn't risk cross-contaminating your data.