✓ Royal Mail Authorised Inspector since 2008 | Trading since 2005
The right FP Mailing franking machine labels are self-adhesive labels that fit your specific Postbase model, print a crisp Mailmark 2D barcode and meet Royal Mail standards so your mail is not rejected. For most FP Mailing machines this means a double sheet label (150mm x 43mm); larger items, return addresses or tracked services use long, extra-long or single-cut formats.
If you’re using an FP Mailing franking machine, choosing the correct labels isn’t just about fit – it’s about print quality, Royal Mail compliance, barcode accuracy and keeping your postage costs under control. In this 2026 guide, we’ll explain:
- Which FP Mailing labels fit which machines.
- The difference between single, double and long labels.
- Mailmark label requirements.
- OEM vs compatible labels.
- How to avoid common label problems.
Whether you run a Postbase Mini or a high-volume Postbase One model, this guide will help you buy the right labels with confidence.
Why Choosing the Right FP Mailing Franking Machine Labels Matters
At Mailcoms, we’ve spent over a decade supplying high-quality compatible and original franking labels for FP Mailing franking machines. We manufacture all of our labels here in the UK and ensure they meet Royal Mail standards. Using incorrect or poor-quality labels can cause:
- Smudged or faded impressions.
- Mailmark barcodes failing to scan.
- Label jams.
- Adhesive failure in transit.
- Rejected mail from Royal Mail.
In 2026, with Mailmark barcoding standard across all machines, label quality is more important than ever. A properly manufactured label ensures crisp blue impressions every time, accurate barcode scanning, secure adhesion and smooth feeding through your machine.
View our range of FP Mailing franking labels for current pricing.
FP Mailing Double Sheet Franking Machine Labels (Standard)
Our FP Mailing double sheet labels are one of the most commonly used formats for FP Mailing franking machines – and one of our best sellers. Our standard sized double sheet franking labels are 150mm x 43mm in size, contain two labels per sheet and are perfect when you need to frank a company logo only.
Best suited for:
View standard double sheet labels
FP Mailing Double Sheet Franking Machine Labels (Long 175mm)
Our FP Mailing long double sheet labels are another type of double sheet labels used for FP Mailing franking machines. Our long sized double sheet franking labels are 175mm x 43mm in size, contain two labels per sheet and are perfect when you need to frank a company logo and return address.
Best suited for:
FP Mailing Double Sheet Franking Machine Labels (Royal Mail Special Delivery / Signed For)
Our FP Mailing extra long double sheet labels are our final type of double sheet labels used for FP Mailing franking machines. Our extra long sized double sheet franking labels are 215mm x 100mm in size, contain two labels per sheet and are perfect when you need Royal Mail’s 1D barcode tracking number compatibility and Royal Mail’s separate return address policy.
Best suited for:
- Postbase Mini
- Postbase Vision 3S
- Postbase Vision 5S
- Postbase Vision 5A
- Postbase Vision 7A
- Postbase Vision 9A
- Postbase Ten
- Postbase Fusion Semi-Auto
- Postbase Fusion Auto
- Postbase Fusion Advanced
- Postbase Fusion A120
- Postbase One
View extra long Special Delivery / Signed For labels
FP Mailing Postbase Single Cut Franking Machine Labels
Our FP Mailing Postbase single cut franking labels are designed to fit into any Postbase Series franking machine with a label feeder built in. Our single cut franking labels are 152mm x 45mm in size, contain one label per sheet and are perfect when you need to frank your larger mail items.
Best suited for:
- Postbase Qi3
- Postbase Qi4
- Postbase Qi6
- Postbase Qi9
- Postbase Econ
- Postbase Office
- Postbase Enterprise
- Postbase Enterprise Pro
- Postbase Vision 3S
- Postbase Vision 5S
- Postbase Vision 5A
- Postbase Vision 7A
- Postbase Vision 9A
- Postbase Ten
- Postbase Fusion Semi-Auto
- Postbase Fusion Auto
- Postbase Fusion Advanced
- Postbase Fusion A120
- Postbase One
FP Mailing Postbase Extra Long Single Cut Franking Machine Labels
Our FP Mailing long single cut franking labels are designed to fit into any FP Mailing Postbase franking machine with a label feeder built in. Our extra long single cut franking labels are 215mm x 43mm in size, contain one label per sheet and are perfect when you need to frank your larger mail items.
Best suited for:
- Postbase Qi3
- Postbase Qi4
- Postbase Qi6
- Postbase Qi9
- Postbase Econ
- Postbase Office
- Postbase Enterprise
- Postbase Enterprise Pro
- Postbase Vision 3S
- Postbase Vision 5S
- Postbase Vision 5A
- Postbase Vision 7A
- Postbase Vision 9A
- Postbase Ten
- Postbase Fusion Semi-Auto
- Postbase Fusion Auto
- Postbase Fusion Advanced
- Postbase Fusion A120
- Postbase One
View extra long single cut labels
Original vs Compatible FP Mailing Franking Machine Labels – What’s the Difference?
This is one of the most common questions we get, so let’s break it down.
Original (OEM) labels:
- Made by the equipment manufacturer – in this case FP Mailing.
- Higher cost.
- Trusted by brand-loyal customers.
- Suitable for leased machine agreements.
Compatible labels (designed to meet Royal Mail requirements):
- Made in the UK to meet Royal Mail requirements.
- Lower cost, meaning significant cost savings.
- Designed for Mailmark barcode accuracy.
- Does not void warranty.
- Guaranteed equal or better quality – in fact, many of our customers say our compatible labels are better than what they buy from FP Mailing.
Thousands of UK businesses now use compatible labels to reduce running costs without sacrificing quality.
How to Store Franking Machine Labels Properly
A common problem we have found is that some customers buy multiple packs of franking labels to use over a long period, and when they open the last pack the labels are curling and the adhesive has broken down. This often happens when the labels are not stored in the correct conditions. To extend franking label life:
- Store in a cool, dry environment.
- Avoid direct sunlight.
- Keep sealed in original packaging.
- Avoid humidity exposure.
Final Thoughts: Trust Mailcoms for Your FP Mailing Labels in 2026
Whether you’re running a compact FP Mailing Postbase Mini, a fully automated Postbase Fusion Auto, or a high-volume Postbase One franking machine, Mailcoms can offer the best franking machine label solutions in the UK – without compromising quality, price or reliability. View our range of FP Mailing franking machine labels here.
At Mailcoms, we offer a range of packaging supplies and franking machines. If you are interested in getting a franking machine or wish to upgrade to a Mailmark franking machine, please view our franking machine page here or call us today on 01543 572 776.
We are a Royal Mail Authorised Independent Inspector and Maintainer of postal franking machines, and we have serviced and supplied over 40,000 customers, including our own range of models.
Frequently Asked Questions
What size are standard FP Mailing franking labels?
Standard double sheet FP Mailing franking labels are 150mm x 43mm with two labels per sheet. Long double sheet labels are 175mm x 43mm, extra long (Special Delivery / Signed For) double sheet labels are 215mm x 100mm, Postbase single cut labels are 152mm x 45mm, and extra long single cut labels are 215mm x 43mm.
Do compatible FP Mailing labels void my warranty or work with Mailmark?
No. Our UK-made compatible labels do not void your warranty and are designed for accurate Mailmark 2D barcode scanning, while costing less than original FP Mailing labels.
Which FP Mailing label do I need for tracked or Signed For mail?
For Royal Mail Special Delivery and Signed For items you need the extra long 215mm x 100mm double sheet labels, which support Royal Mail’s 1D barcode tracking number and separate return address policy.
How should I store franking machine labels?
Store labels in a cool, dry place out of direct sunlight, keep them sealed in their original packaging and avoid humidity. This stops the labels curling and the adhesive breaking down before use.