A general Paid mark
Choose Paid, Paid Outline or Paid With Thanks when a simple completion message is enough.
Free UK delivery over £15 · Order before 2pm
Payment confirmed · paperwork clearly marked
Choose a self-inking Paid stamp to mark invoices, receipts and payment records once a transaction is confirmed. Compare general Paid and Paid With Thanks designs, payment-method wording, and Refund or Refunded stamps. Check the impression size and choose an available ink colour on each product page.
Repeated impressions without carrying a separate stamp pad.
Ready-made payment and refund messages supplied as shown.
Black, red, blue, green and violet on current listings.
Check each design against the space on your paperwork.
Choose the wording
Use Paid for a general completion mark, a payment-method stamp for more detail, or Refund and Refunded wording for your returns paperwork.
Make payment records easier to read
For bookkeepers, office teams and small businesses marking invoices, receipts and refund records. Keep a consistent meaning for each stamp across your team.
Choose Paid, Paid Outline or Paid With Thanks when a simple completion message is enough.
Compare wording for cash, cheque, credit card, Direct Debit, Bacs and PayPal when the method needs to appear on the paper record.
Choose Refund or Refunded to match your process. Use a completion mark only after the refund has been confirmed.
Compare the dimensions on each product with a clear area on your invoice or receipt. Refund and Refunded include shallow 45 × 6mm versions and 43 × 16mm versions; other designs have their own sizes.
The Paid By Bacs impression measures 35 × 17mm.
The product gallery shows the supplied wording and layout. Current listings offer black, red, blue, green and violet; each product’s variant selector shows what you can order.
The listed water-based ink is for standard absorbent paper and card. Test first on spare material.
Order and use
These are fixed designs. Read the product gallery, compare the size and select the available ink colour before adding to your basket.
Match the transaction to the correct record. Make a test impression on spare paper, then stamp on a flat, supported surface.
Use a verified replacement-pad link where the product supplies one. If no pad is linked, ask for the exact model match before ordering.
Explore Stamp Ninja
Explore overdue and credit-control messages.
Choose your own text when fixed wording is not enough.
Read the existing guide to inks and surfaces.
Identify a pad by stamp model; verify compatibility.
Browse practical stamp advice.
Useful answers
No. These ready-made stamps have the fixed wording and design shown in their product galleries. Choose a personalised stamp for your own wording.
The current listings offer black, red, blue, green and violet. Check the live variant selector for the colours available to order on your chosen product.
No. These self-inking stamps contain an internal ink pad.
The listed water-based ink is intended for standard absorbent paper and card. Test on a spare piece first; do not assume compatibility with glossy, coated or non-porous surfaces.
Use a verified replacement-pad link on the product page where one is provided. Otherwise ask Stamp Ninja to confirm the pad for your exact model; impression size alone is not a compatibility guide.
Refund identifies the subject or stage according to your own process. Refunded states that a refund has been completed. Confirm the transaction before applying a completion mark; stamping does not process a payment or update your records.
Use a personalised stamp for a business name, invoice reference field or a different message.