A valid domestic reply envelope marked 料金受取人払 uses an arrangement in which the recipient pays the postal charges. You do not need to add a stamp merely because there is no ordinary stamp on it. However, check the printed posting-validity deadline: Japan Post says that once this arrangement has expired, you should attach stamps when posting the item. Japan Post: recipient-paid mail, expired-envelope FAQ.
Identify the payment arrangement, not just a printed address
A company or organisation can obtain approval from Japan Post and distribute envelopes or postcards with the required recipient-paid markings. A preprinted destination alone is not evidence of that approval. The marking 料金受取人払郵便 is the useful starting point; the printed 差出有効期間 identifies the period in which it may be posted under that arrangement. Japan Post: approval and marking requirements.
Before putting documents inside, distinguish three situations:
| What you have | What to check before posting |
|---|---|
| An issued recipient-paid envelope with a readable, current validity period | Use it for the intended reply, following the issuer's instructions |
| A recipient-paid envelope whose validity has expired | Arrange the correct postage or ask the issuer for a current replacement |
| An ordinary return envelope with only an address printed on it | Do not assume postage is covered; check its instructions and any actual prepaid postage |
This guide concerns domestic business reply mail. Do not transfer these instructions to an international reply form simply because it also mentions a recipient paying.
There may be two different deadlines
The postage arrangement’s validity is not the organisation’s deadline for receiving your application, survey or other reply. Write down both dates before deciding when to send it.
For a hypothetical example, suppose an envelope’s recipient-paid validity ends on 31 December, while an application must reach the organisation by 20 October. Posting on 25 October could still be within the printed postal validity, but would be too late for that assumed application deadline. The envelope is not an extension of the application period.
Now reverse the situation: the postal validity ended on 30 September, but the organisation still accepts replies in October. The reply may still be useful to the organisation, yet the expired recipient-paid arrangement does not make its postage free. Japan Post’s FAQ directs the sender to attach stamps in this case. Japan Post: what happens after expiry.
Both examples are invented to explain the distinction. They are not advice about a particular institution’s acceptance rules. Check whether that institution requires arrival by a date or permits a posting-date deadline.
If the envelope has expired, avoid guessing the stamp amount
The expired-envelope FAQ answers who must supply postage; it does not give one universal stamp value for every reply. The required amount depends on the actual mailpiece and service. Pack the intended contents first, then assess the finished envelope rather than the blank one.
If you cannot establish the appropriate postage confidently, take the packed item to a postal counter and explain that the recipient-paid validity has expired. A useful phrase is: 「料金受取人払の期限が切れています。必要な切手代を確認したいです。」 — “The recipient-paid validity has expired. I would like to check the postage needed.”
Alternatively, ask the organisation for a current envelope or its preferred replacement method. Do not alter the printed expiry yourself or assume that an old envelope proves an extension has been authorised. A replacement may also matter if the destination or the requested documents have changed.
Make one final check before sealing
Check the destination, the requested contents, the postal validity and the recipient’s own submission deadline together. For an important reply, keep a note of which instructions you followed. That note is for your own organisation; it is not proof of posting or delivery.
This is desk research based on Japan Post’s official service page and FAQ, not a counter test. It does not verify an individual organisation’s approval, an extension of its envelope validity, or its acceptance of late documents. The practical rule is to treat “postage is paid by the recipient” as a condition attached to the issued envelope, rather than a permanent property of any envelope addressed to that recipient.
Related guides
- Reply-paid postcards: folding and cutting covers a different postal format.
- What to do about insufficient postage covers a shortfall found after posting.