Short answer: duplicate checks have a carbonless copy under every check, so you keep a record of the payee, amount and date as you write. They cost a little more than singles: at Carousel Checks a box of 100 Blue Safety duplicates is $22.00, only $2.00 more than singles. For the lowest price in bulk, Costco Checks sells 320 duplicates for $30.69.
See Blue Safety duplicate checks at Carousel →
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What duplicate checks are
A duplicate check is a normal check with a thin carbonless copy bound under it. When you write the check, the pressure of the pen prints the same writing onto the copy. You tear out the check and the copy stays in the checkbook with the check number, date, payee, amount and memo. Checks Unlimited describes its duplicates as carbonless copies of every check you write.
The copy is thinner, so pads hold fewer checks. At Carousel and Bank Checks Plus, a box of Blue Safety singles has 4 pads of 25 checks and 8 deposit tickets, while a box of duplicates has 5 pads of 20 checks and 10 deposit tickets. Both boxes hold 100 checks and a transaction register.
Duplicate check prices compared
The cheapest blue safety design at each seller, from its own product page on October 19, 2026, before tax:
| Seller and design | 1 box or pack | 4 boxes or packs | Per duplicate check | Shipping |
|---|---|---|---|---|
| Carousel Blue Safety | $22.00 (100) | $88.00 (400) | 22 cents | Extra, by method |
| Bank Checks Plus Blue Safety | $27.11 (100) | $90.35 (400) | about 23 to 27 cents | Extra, by method |
| Checks Unlimited Blue Classic | $29.49 (80) | $90.49 (320) | about 28 to 37 cents | Extra, by method |
| Walmart Checks Blue Secure | $14.46 (100) | $57.85 (400) | about 14 cents | Free standard |
| Costco Checks Blue Safety | $22.09 (2 packs, 160) | $30.69 (320) | about 10 to 14 cents | Free trackable |
Walmart and Costco win on price for a plain blue duplicate check; see our Walmart checks and Costco checks guides for their delivery times. The printers win on design choice, and Carousel also sells a single pad of 20 duplicates for $12.99 if you write few checks.
What the copy costs
The price gap between singles and duplicates for the same box:
| Seller | Singles | Duplicates | Extra for copies |
|---|---|---|---|
| Carousel Blue Safety (100) | $20.00 | $22.00 | $2.00 a box, 2 cents a check |
| Walmart Blue Secure (100) | $12.75 | $14.46 | $1.71 a pack |
| Bank Checks Plus Blue Safety (100) | $22.59 | $27.11 | $4.52 a box |
| Checks Unlimited Blue Classic (80) | $23.49 | $29.49 | $6.00 a box, 7.5 cents a check |
| Checks Unlimited single photo checks (80) | $28.49 | $34.49 | $6.00 a box |
Carousel charges the least for the copy. On a four-box order, the gap at Checks Unlimited is $18.20 ($72.29 vs. $90.49) and at Carousel $9.00 ($79.00 vs. $88.00).
Single vs. duplicate checks
Choose duplicates if you write checks by hand for rent, contractors, school fees or a small business and want proof of exactly what you wrote, or if you tend to forget to fill in the register. The copy also shows which check numbers you used, which helps when you reconcile your statement.
Small businesses that write checks by hand, such as contractors paying suppliers, get an audit trail from duplicates without buying accounting software. Businesses that print checks from QuickBooks use laser checks instead, and keep the record in the software.
Choose singles if you write only a few checks a year and track them in your banking app or the register. Singles are cheaper and the pads are slimmer.
Top stub and side tear checks are a different way to keep a record: you write the details on a stub instead of a copy. Checks Unlimited has a Side Tear Checks category, and Bank Checks Plus lists Top Stub designs.
See Blue Classic duplicates at Checks Unlimited →
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Other formats: side tear duplicates cost $25.50 a box at Carousel (checked October 19, 2026). Compare side tear and top stub checks, and order matching deposit slips if you deposit often.
How to order duplicate checks
- Pick a design and choose Duplicates instead of Singles on the product page (Carousel lists it under Format; Checks Unlimited shows Singles and Duplicates prices side by side).
- Choose the quantity. Multi-box orders cost less per check at Carousel and Checks Unlimited.
- Enter your routing number, account number, starting check number, name and address, copied from a current check.
- Check the preview, pick shipping and pay.
Have a code ready: Checks Unlimited’s current offer codes are R66Q, 355M and BL5R, valid through Dec 31, 2026, if the code applies to your design. See our Checks Unlimited coupon codes, Carousel coupon codes and cheapest checks comparison. Business owners writing checks by hand can also compare Bank Checks Plus laser checks or see our business checks guide.
Delivery time
Checks Unlimited: printing and standard delivery take up to 15 business days after order verification, or 7 to 11 business days with trackable delivery. In-Plant Rush ($6.99) gets the order ready to ship within 2 business days after verification. Carousel Checks lists Next Day Air (1 to 2 business days), 2nd Day Air (2 to 3), Ground (2 to 5), Trackable (3 to 7), USPS Priority (7 to 10) and Bulk (9 to 18 business days), plus processing time.
Walmart Checks says orders arrive within 12 business days. Costco Checks’ free trackable delivery takes 9 to 12 business days, or 7 to 9 with Trackable Express ($22.80).
Value Priced Personal Checks
Browse hundreds of personal check designs and current deals, from classic and floral to scenic and photo styles, all shipped fast from a trusted printer.
Duplicate checks: frequently asked questions
What are duplicate checks?
Checks with a carbonless copy under each one. Writing the check presses the same details onto the copy, which stays in your checkbook as a record of the check number, date, payee and amount.
How much more do duplicate checks cost?
At Carousel Checks, a box of 100 Blue Safety duplicates is $22.00 versus $20.00 for singles. At Checks Unlimited, a box of 80 Blue Classic duplicates is $29.49 versus $23.49. Prices checked October 19, 2026.
Where can I buy cheap duplicate checks?
Costco Checks had the lowest bulk price on October 19, 2026: 320 Blue Safety duplicates for $30.69 with free trackable delivery. Walmart Checks sells 100 duplicates for $14.46, and Carousel sells 100 for $22.00.
How many duplicate checks are in a box?
Carousel and Bank Checks Plus boxes hold 100 duplicates in 5 pads of 20. Checks Unlimited boxes hold 80. Costco packs hold 80, and Walmart packs hold 100.
Should I get single or duplicate checks?
Get duplicates if you write checks by hand and want a record of each one. Get singles if you write few checks and track them in your register or banking app, since singles cost less.
Do banks accept duplicate checks?
Yes. The original check is a standard check with your routing and account numbers in magnetic ink. Only the original is used for payment; the copy stays with you.
Still deciding? Checks Unlimited Safety Checks work with any U.S. bank or credit union account: $23.49 for one box of 80 singles, or $72.29 for four boxes (prices checked Nov 10, 2026).
Order Safety Checks at Checks Unlimited →
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Related guides
- How to write a check
- Walmart checks
- Costco checks
- Deluxe checks
- Photo checks
- How to reorder checks online
- Cheapest checks 2026
- Check companies compared
Affiliate disclosure: GetBankChecks.com is an independent guide, not a check printer. Some links are affiliate links, and we earn a commission if you buy through them, at no extra cost to you. Prices, codes and designs change, so check them on the merchant’s site before you pay.