For GPS-tracked stock, Lockii compares the tracker's distance from the return location with the time left on the booking, using the maximum travel speed and overdue tolerance you set. If the unit can't make it back, it sends your configured warning.
Late Return Prediction & Automatic Late Charges
Late return prediction uses live GPS to spot a rental that can't get back in time and warns the customer before it's overdue. If the hire still runs late, automatic late charges confirm the item is out with GPS and the return form, charge the saved card, and extend the booking.
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Trusted By The Best
Built for rental workflows
Practical controls that keep self-service rental secure and paid, without staffing every handover.
Early warnings
Customers hear from you while there's still time to fix it, not after the next renter is already waiting.
Two-source proof
GPS and the return form must agree before Lockii charges, so a late GPS ping never bills someone who returned on time.
Your numbers
Set the grace window, extension length, travel speed, and tolerance. Turn late charges off for any single booking.
Reported outcomes
The Bookings report shows late charges collected, failed, and blocked, so you can see what late returns are worth.
How it works
Three steps from setup to a working self-service workflow, no counter required.
Lockii predicts the late return
A recently pinged tracker that is too far away to make the return time triggers your warning message, using the travel speed and tolerance you set.
It confirms the item is still out
After your grace window, GPS and the return form must both show the rental hasn't come back. If they disagree, no charge is made.
The saved card is charged
Lockii charges for the extension you set, extends the booking, and sends your auto-extension email. A clash with the next booking skips the charge.
Once a booking is overdue past your buffer (30 minutes by default), Lockii checks GPS and the return form. If both show the item is still out, it charges the saved card for the extension length you set (2 hours by default) and extends the booking.
Yes. The late return warning and the automatic extension email are normal communications. Open them from Edit emails in Settings → Preferences and change the copy.
Charlie Haddad
Operator, Trailer 4 Hire
Lockii has made our business efficient in managing our bookings; saving us a lot of time to focus on the growth of the business. The Lockii system is user friendly, and has many options to meet the needs of our business for future growth.
Ben Keep
Owner, Hatoza Hire
Lockii has significantly reduced complexity and allows me to focus more on running my business. The platform offers an intuitive interface, and the onboarding and ongoing support have been exceptional.
Mario Clewlow
Owner, Hitch Haul
Lockii has been a game changer for our trailer rental business. We now offer fully automated, contactless rentals. It's streamlined, secure, and exactly what our business needed to jump in front of our competitors! They are very responsive, knowledgeable, and always looking for ways to help us grow.
Yvann Karamoko
Operator, The Trailer Co
Lockii has been a game-changer for our business. It's allowed us to operate fully automated, 24/7 trailer rentals and scale that side of our operation with confidence. What's impressed us most isn't just the reliability of the platform, but the pace of innovation. This is a team that listens, iterates, and keeps making an already great product better. Lockii hasn't just supported our growth; it's helped make it possible.
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