Single-use car wash vouchers

Car wash offers that can't be reused.

Run free wash and upgrade promotions without worrying about screenshots, sharing, or repeat use. Control redemption at the kiosk or with staff — no POS integration required.

Test a single-use car wash voucher See how redemption works
✓ VALID OFFER
Free Premium Wash
Valid until Feb 15, 2026
Mark as Used
You'll be asked to confirm. Once used,
this offer cannot be redeemed again.
Offer redeemed
This offer was marked as used just now.

The real-world problem

Free wash promotions are easy to abuse.

If you offer free washes, upgrades, or introductory discounts, reuse will happen.

Customers reuse screenshots

“One-time” wash offers get screenshotted, forwarded, and redeemed repeatedly. You have no way to tell.

Staff can't verify during a rush

Is this offer valid? Has it been used? There's no answer while the queue backs up.

POS can't enforce single use

Most car wash POS systems have no concept of one-time digital vouchers. Integrations take months and cost more.

No record of what was redeemed

You can't reconcile campaign cost against actual unique redemptions. There's no audit trail.

How it works

From offer to redemption in five steps.

Create wash offer
Import or auto-generate codes
Share anywhere
Email, ads, or signage
Customer arrives
Shows voucher on their phone
Marked as used
One tap, instant status change
Reuse blocked
Permanently. No exceptions.
Test a single-use voucher See the full redemption flow →

See all integrations →

What you get

Built for real-world car wash redemption.

Single-use enforcement

Each voucher can only be redeemed once. Reuse is blocked automatically. Attempts show a clear “Already Used” status.

Tap or scan to redeem

Customers tap “Mark as Used” on their phone, or staff scan the QR code. Works at attended and unattended locations.

Learn how QR scanning works →

Attended or unattended

Works at staffed locations, self-service kiosks, or anywhere with a phone and a browser. No hardware needed.

No POS changes required

No integrations, no hardware, no IT involvement. Launch a campaign without waiting on anyone.

Full audit trail

Every redemption logged with timestamp and location. Filter by campaign, tag, or date. Export CSV reports.

Learn how mark-as-used works →

Time-limited offers

Set expiry windows from hours to weeks. Codes auto-expire — no manual cleanup, no stale offers circulating.

Common car wash promotions

Campaigns car washes actually run.

Also works for: Restaurants & Retail · Bars & Breweries · Entertainment Venues

Common questions

Frequently asked

Can this work at unattended car washes?
Yes. The customer opens their unique voucher link on their phone, taps “Mark as Used,” and the status changes instantly. No staff interaction needed. If the wash has an attendant, they can verify visually or scan the QR code. Either way, once redeemed, the voucher is permanently blocked from reuse.
Does this require a kiosk or POS integration?
No. Coupon Carrier runs entirely in the browser. There's nothing to install on your kiosk or connect to your POS. You create offers in our dashboard, distribute them, and track redemptions — all independent of your wash equipment.
What happens if someone tries to reuse the voucher?
The voucher page shows a clear “Already Used” status with the date and time it was redeemed. There's no button to tap, no QR to scan, and no way to reset it. Staff can see the status instantly if the customer shows their phone.
Can we track redemptions per location?
Yes. Create separate scanner logins per location or use tags to segment campaigns. Your dashboard shows redemption data by location, date, and campaign. Export CSV reports for reconciliation or analysis.
How fast can we set this up?
Most car washes go live within an hour. Create an account, set up your first offer, import or auto-generate codes, and share the link. There's no onboarding call, no integration timeline, and no hardware to ship. If you can send an email, you can launch a campaign.

Stop free wash abuse before it starts.

Test the redemption flow in minutes. See a single-use voucher go from valid to used — and stay used.

Start free trial Try the redemption flow yourself

7-day free trial · 30-day money-back guarantee · See pricing · Guided demo