Yes, you can print your own deposit slips. No federal law prohibits it, and nothing in the Uniform Commercial Code requires you to use bank-issued forms. The real question is whether the slip you print will clear your bank’s processing equipment, and that comes down to magnetic ink, the right paper, exact dimensions, and correct placement of the encoded numbers at the bottom of the slip.
Is It Legal
UCC Article 4 governs bank deposits and collections nationwide and doesn’t mandate any particular slip format.1Cornell University. UCC – Article 4 – Bank Deposits and Collections What it does do, under Section 4-103, is let banks and customers agree to standards that depart from the code’s defaults, as long as those standards aren’t “manifestly unreasonable.”2Cornell University. UCC 4-103 – Variation by Agreement, Measure of Damages, Action Constituting Ordinary Care That gives your bank wide latitude to reject a slip its machines can’t read or its tellers don’t recognize. Repeated rejections could end with the bank requiring you to switch back to its official supplies.
Call your bank before you buy anything. Ask whether it accepts customer-printed slips and what specifications it requires. A five-minute call can save you a MICR cartridge you won’t be able to return.
The Technical Requirements
MICR Toner
Standard laser or inkjet toner won’t do. Banks run deposit slips through high-speed reader-sorter machines that detect a magnetic signal from the encoded routing and account numbers at the bottom of the document.3Thomson Reuters. Add MICR Numbers to Check and Deposit Slips You need a MICR toner cartridge, which contains iron oxide particles that produce that signal. Characters printed with regular toner look identical to the eye but are invisible to the scanner.
Expect to pay $160 to $270 for a MICR cartridge, depending on your printer model. The cartridge prints several thousand pages, so the per-slip cost drops quickly at volume. For a few deposits a month, it doesn’t pencil out.
Printer and Paper
A laser printer is the right tool. It bonds toner to the page with heat, producing crisp, smudge-resistant characters that survive automated handling. Inkjets use liquid dye that smears and can’t accept MICR cartridges.
Paper weight matters because sorting machines move documents fast. Thin stock jams, tears, or crumples. Commercial deposit forms typically use 20-pound paper, and that’s a reasonable floor for single-part slips too. Some banks prefer heavier stock, so confirm the requirement when you call.
Dimensions and the MICR Band
Deposit slips are smaller than a standard sheet. The recommended size is roughly 7 1/8 to 7 5/8 inches long by 3 to 3 1/4 inches wide.4Indiana State Comptroller. Wells Fargo MICR Document Design Specifications The MICR clear band occupies the bottom 0.625 inches (five-eighths of an inch) of the slip, and no other magnetic ink should appear in that zone.5ANSI Webstore. ANSI X9.100-160-1-2009 Magnetic Ink Printing (MICR) Part 1 – Placement and Location If the encoded numbers drift outside that band, the reader-sorter rejects the slip.
What the Slip Has to Contain
The data fields are the same whether the slip is printed by you or by the bank. Each one has to be exactly right.
- Routing transit number: the nine-digit number identifying your bank, found at the bottom left of any check on the account.6American Bankers Association. ABA Routing Number
- Account number: copy it exactly from a check or your online banking profile. A single transposed digit routes your deposit to someone else.
- Bank name and branch address: a secondary verification layer, especially for teller deposits.
- Depositor name: the full legal name on the account as the bank has it on file.
Verify every number against a voided check before you save the template. A mismatch between what the MICR line encodes and what the bank expects is the fastest way to have a slip bounced back.
Printing and Testing
You need software that formats the slip to the right dimensions and places the MICR line correctly. Many business accounting programs include deposit slip templates built to banking specifications. Standalone check-printing programs offer the same with fields for your routing number, account number, and bank information.
Start with a test print on plain paper. Hold it against a bank-issued slip or measure the MICR line with a ruler to confirm the numbers sit inside the bottom 5/8-inch band. Check that the routing and account numbers are in the right order and that every character is sharp. Faint or broken characters fail the magnetic read.
Once alignment checks out, load your deposit-weight paper and print. Inspect for streaks, smudges, or faded characters. If anything looks off, clean the transfer roller and reprint. One slip that jams the bank’s sorter costs more time than the whole batch saves.
Whether It’s Worth Doing
Self-printing makes sense at volume. The cartridge, the laser printer, and the specialty paper are a real investment, and the per-slip cost only drops below a penny after you’ve printed a lot of slips. For a business running dozens of deposits a week, printing on demand is genuinely useful. For personal use, it rarely pays off.
Compare the alternatives:
- Pre-printed personalized slips from your bank: typically $40 to $75 for a book of 50 to 100.
- Third-party printing companies: compatible books starting around $20 to $25, often with faster turnaround.
- Counter deposit slips at a branch: free. Your account number isn’t pre-printed, so you write it in by hand.
- Mobile deposit through your bank’s app: photograph the check, no slip needed. Funds generally post the next business day. Daily limits commonly run around $5,000, with monthly caps near $25,000, though they vary.7eCFR. Part 229 – Availability of Funds and Collection of Checks (Regulation CC)
- ATM deposits: most modern ATMs accept cash and checks directly without a slip or envelope and display the counted amounts for you to confirm.
If avoiding branch visits is what’s driving the question, mobile deposit and envelope-free ATMs solve that without any equipment at all.
Security and Recordkeeping
Printing deposit slips means your routing and account numbers live in a file on your computer and possibly in your printer’s memory cache. If you store templates on a shared network or a laptop that travels, anyone with access to those files has what they need to attempt unauthorized transactions against the account. The FTC has reported that fraudsters already buy check stock from office supply stores and use accounting software to create fraudulent checks on stolen account information.8Federal Trade Commission. Anatomy of a Fake Check Scam Password-protect your template files, encrypt the drive if the machine is portable, and clear printer memory after use, especially on shared office equipment.
If the slips are for a business, they’re part of your tax records. The IRS treats bank deposit slips as supporting documents for gross receipts and expects them kept in an orderly fashion for at least three years after you file the return they support. That retention period extends to six years if income was underreported by more than 25 percent, and there’s no limit at all for a fraudulent or unfiled return.9Internal Revenue Service. Publication 583, Starting a Business and Keeping Records Accounting software that stores a digital copy of each slip alongside the transaction simplifies retrieval during an audit, but the IRS still expects the physical copies to be filed somewhere safe.