USPS labels can be printed with a laser printer, a good-quality inkjet printer or a compatible 4×6 label printer; the required result is a complete, correctly scaled and readable label.
Which printer should you choose?
| Printer | Good fit | Check carefully |
|---|---|---|
| 4×6 thermal label printer | Frequent package labels and peel-and-stick workflow | Driver, PDF size, label stock and platform compatibility |
| Laser printer | Plain paper or sheet labels with crisp output | Correct media setting, scale and secure attachment |
| Inkjet printer | Occasional labels with suitable ink and paper | USPS recommends high-quality output; avoid smearing or low contrast |
| No printer | Supported Label Broker transaction | Participating location and valid QR code |
USPS label size and scaling
Approximately 4×6-inch output is common for package labels, while ordinary paper can also be used in supported workflows. Print at the size generated by the postage system. Do not use “fit to page” when it distorts, crops or shrinks the barcode and address block.
Run a label test
- Confirm the correct printer and media size.
- Preview the full label before printing.
- Check that edges, address, postage evidence and barcode are complete.
- Verify dark, sharp bars on a clean light background.
- Attach the label flat on the largest suitable package face.
- Keep seams, curves, wrinkles and glossy tape away from the barcode.
Problems a new printer will not fix
A printer cannot correct an invalid label, wrong weight, bad address, expired transaction or unsupported service. Resolve data and payment errors in the postage system rather than editing the output. For the full range of postage methods, see prepaid postage options.
Sources and update note
Facts and availability checked September 10, 2026.