Remittance Envelope Size Guide for Nonprofits

A common 6 3/4 remittance envelope size is 3 5/8 × 6 1/2 inches, while a common #9 reply envelope size is 3 7/8 × 8 7/8 inches. The right choice depends on the response form, reply card and outer mailing envelope—not the size name alone. Always confirm the finished dimensions and flap geometry on the product template before preparing artwork.

What is a remittance envelope?

A remittance envelope is a return envelope that accompanies a donation appeal, membership renewal, invoice or other request for payment. The donor can use it to return a contribution, and an extended flap may double as a response form. Because the form and envelope can be one piece, the design must work when the envelope is open, folded and sealed.

A nonprofit fundraising package may include an outer mailing envelope, an appeal letter, a separate reply card and the remittance envelope. Each piece has a different job, but their dimensions must be planned together. The return piece must hold the donor's payment or reply card while still fitting comfortably inside the outer package.

Which remittance envelope sizes are commonly used?

The 6 3/4 format, commonly 3 5/8 × 6 1/2 inches, is a compact choice for many reply-mail applications. A #9 envelope, commonly 3 7/8 × 8 7/8 inches, provides more width for a larger reply card or folded document. These dimensions describe familiar finished formats, but they do not establish the exact depth of the envelope body, the usable form area or the shape of an extended flap.

Review the dieline or template for the specific remittance envelopes you intend to buy. Two products identified by the same general size can have different seams, folds and flap layouts. Artwork prepared from a size label alone may place text across a fold or leave an important field inside a glue area.

How do I choose between a 6 3/4 and #9 envelope?

Begin with the material that the donor must return. Measure the reply card, check whether it will be folded and leave practical clearance so it can be inserted without catching at the seams. If the envelope itself carries the response form, compare the amount of writable space available on its extended flap rather than choosing solely by the closed dimensions.

Next, make a physical dummy containing the actual appeal letter, reply piece and return envelope. Place the assembled pieces inside the proposed outer envelope and check insertion, thickness and alignment. Then put the reply card inside the return envelope and seal a sample. A #9 reply envelope can fit inside a suitable #10 outer envelope, so it is not automatically limited to an oversized mailing; the complete mockup determines whether the pairing works.

For the outgoing package, compare the dimensions and print options for premade envelopes. Their listed pricing starts at $33.85, with a displayed default unit price of $0.68. The outer envelope must accommodate every insert without forcing sharp folds, distorted corners or an overfilled appearance.

How should the response flap be designed?

A useful response flap gives donors clear instructions, adequate writing space and an obvious sequence for completing the form. It may include the organization name, return address, gift selections and contact preferences when appropriate. Keep essential donor information away from folds, seams and glue areas, and inspect what remains visible after the envelope has been sealed.

Distinguish the gift amount from optional contact or communication choices. If online giving is available, include a readable web address and a tested QR code, but keep the paper response route understandable on its own. Do not place sensitive payment information on an exposed exterior panel. When personal details appear on a flap, fold and seal a printed sample to verify that those details are concealed as intended.

The companion article Remittance Envelopes in Los Angeles: The Flap Is the Form explains why the open, folded and sealed states all matter. Treat the dieline as a functional form layout, not simply as a larger canvas for branding.

What paper stock works for a donation envelope?

Choose an available uncoated stock when donors need to write on the envelope or response form. Test the pens people are expected to use and allow ink to dry before folding. Avoid dark photographs, heavy ink coverage or complicated patterns behind gift amounts, addresses and signature fields. Color can identify the organization, but it should not interfere with legibility.

Available size, paper and printing selections can be reviewed on the remittance envelope product page. Listed pricing starts at $46.90, with a displayed default unit price of $0.94. Confirm the chosen configuration, template and finished size before submitting final art because the usable response area depends on the selected construction.

How do return address and postage choices affect the design?

A clearly printed return address helps identify where the reply should go, but printing an address does not make return postage prepaid. Confirm the return-mail arrangement separately before adding postal wording, permit information or other markings. Those details should come from the organization or the party managing the mailing rather than being copied from an unrelated campaign.

Keep postal areas separate from donor instructions and decorative artwork. If you are also designing the outgoing envelope, the marketing envelope print guide provides additional context about envelope dimensions, postage considerations and print choices. Use the approved postal information consistently across the final files.

How should nonprofits proof the complete package?

Proof the outer envelope, appeal letter, response form and return envelope together. Maintain one approved version of the organization name, mailing address, donation URL and response instructions. Check spelling, field labels, QR-code destination, fold direction, privacy after sealing and the placement of every element relative to the template.

A flat artwork proof cannot reveal every physical problem. Produce a paper mockup at actual size, trim it, fold it along the indicated lines and test the entire sequence a donor will follow. Confirm that the form remains readable, the reply piece fits inside the envelope and the sealed envelope presents the correct return information.

When should year-end remittance envelopes be ordered?

Work backward from the intended in-home period rather than treating the print turnaround as the delivery date. Allow separate time for internal approval, proof corrections, production, package assembly and postal transit. The appropriate schedule depends on the selected product options and on who is responsible for preparing and mailing the finished pieces.

Send the printer the envelope size, insert dimensions, quantity, artwork and target mailing window when requesting a quote. State whether the request is for printing alone or whether other preparation must be discussed. An early assembled sample is more dependable than assuming that every envelope, insert and mailing plan follows the same calendar.

Where can I order nonprofit remittance envelopes?

Choose the required size and print options and order custom remittance envelopes online, or compare premade outer envelopes for the rest of the appeal package. For help matching the reply envelope to your letter and inserts, call Angels Print or visit the shop with an actual-size sample of the complete mailing.