Blank check stock is security paper — watermarked, often with other anti-fraud features like microprinting or heat-sensitive ink — but with no bank information pre-printed on it. Your check software prints everything: your bank's name, your routing and account numbers, the MICR line, and the check layout itself.
Why it's more flexible
- The same stock works for any bank account, so you're not stuck with a single pre-printed batch tied to one account.
- If you switch banks or add a second account, you don't need to reorder stock — just update the details in your software.
- You're not storing a large pre-printed batch with your account number already on it sitting in a drawer.
The tradeoff is that your software needs to correctly generate the full check, including a properly formatted MICR line — see our guide on printing with MICR information for what that requires.