USPS Wedding Stamps & Postage Guide: 2026 Rates, Sizes & Designs

Getting your wedding invitations to the mailbox sounds simple – until you realize the answer to “how many stamps do I need?” depends on your envelope shape, paper weight, wax seal choice, and whether your RSVP cards go back as postcards or letters. This guide covers every USPS postage variable for a US wedding mailing in 2026, so you can budget confidently and choose stamps that match your stationery aesthetic.

Current USPS Wedding Stamps – 2026 Catalog

USPS releases new stamp series each year, and several designs in the current catalog are genuinely beautiful on wedding envelopes. The three most popular options for 2026 are available at store.usps.com and at most post office retail counters.

Love 2026 – Forever Stamp ($0.82)

Issued January 13, 2026, Love 2026 features stylized birds surrounded by hearts in warm illustrated color. As a Forever stamp it covers the current 1-oz first-class letter rate – and will stay valid through any future increases. Art direction by Derry Noyes, illustration by Kim Parker. Sold in booklets of 20 ($16.40).

Celebration Blooms – Forever Stamp ($0.82)

Issued March 2024 and still in active stock, Celebration Blooms pairs especially well with garden, floral, and botanical invitation suites. Abstract flowers and greenery rendered in vibrant ink and gouache – the same artistic hand as Wedding Blooms, making them visually cohesive if you mix both denominations across one mailing. Booklets of 20 ($16.40).

Wedding Blooms – Two Ounce Stamp ($1.11)

If your invitation suite consistently weighs between 1 oz and 2 oz, Wedding Blooms is the single-stamp solution – one stamp covers the full two-ounce rate with no combination required. The “Two Ounce” denomination printed on the stamp works like a Forever stamp: it will always be valid for the two-ounce rate regardless of future price changes. Features an abstract flower bouquet by Kim Parker. Booklets of 20 ($22.20).

July 2026 Forever stamp rise and older stamps still work

USPS raised the Forever stamp price from $0.78 to $0.82 on July 12, 2026. A Forever stamp bought at the old $0.78 price still covers a 1-oz letter at full value with no extra postage needed. The Two Ounce stamp works the same way, always covering the two-ounce letter rate of $1.11. Every price in this guide is the rate in effect since July 12, 2026.

How Much Postage Do You Actually Need?

The answer depends on four factors: envelope size, envelope shape, total assembled weight, and whether any non-machinable characteristics apply. Here is the complete matrix for standard US wedding mailings at current July 2026 rates.

Suite configuration	Estimated weight	Postage – rectangular envelope	Postage – square envelope
Digital print invitation + info card + RSVP card + outer envelope	0.8-1.0 oz	$0.82	$1.31
Above + inner envelope or belly band	1.0-1.2 oz	$1.11	$1.60
Above + vellum overlay wrap	1.1-1.3 oz	$1.11	$1.60
Letterpress on Wild Cotton + full suite	1.5-2.0 oz	$1.11	$1.60
Full suite + wax seal on outer envelope	1.2-1.5 oz	$1.11 + $0.49 surcharge = $1.60 *	$1.60 (surcharge already included)
Oversized envelope (longer than 11.5″ or taller than 6.125″ or thicker than 0.25″)	varies	$1.69+ (large envelope/flat rate)	Flat rate applies – see oversized section

* Wax seals make envelopes rigid, triggering the $0.49 non-machinable surcharge even on rectangular envelopes. Detailed in the next section.

The most reliable pre-mailing step: assemble one complete sample suite with all enclosures in the sealed outer envelope, then take it to your local post office for hand-weighing. If you’re ordering Paperlust letterpress invitations on Wild Cotton or a multi-piece suite with inner envelopes, paper weight alone can push a standard-looking suite into the two-ounce tier. Ten minutes at the counter before you stamp 120 envelopes is worth it.

How to Weigh Your Invitation Suite Before Buying Stamps

The single most important step before buying stamps is weighing one fully assembled sample suite. Skip this and you risk under-stamping 120 envelopes, which means mail returned or stuck in limbo.

Step 1: Assemble a complete sample

Put together one envelope exactly as it will be mailed:

• Outer envelope (sealed)
• Inner envelope (if using one)
• Invitation card
• All enclosures: RSVP card, RSVP reply envelope, details card, accommodation card, map card
• Any inserts: vellum wrap, belly band, ribbon, wax seal applied

This is the weight USPS will charge you for. Weigh without all enclosures and you will underpay.

Step 2: Choose a scale

• A dedicated postal scale (available for $15-30 online) gives the most accurate reading and is worth the investment if you are mailing 100+ invitations.
• A kitchen scale that reads in increments of 0.1 oz or less works fine for most suites.
• Your local post office will weigh for free, bring your assembled sample to the counter and ask a clerk to weigh it and confirm the postage before you buy anything.

The $0.49 Square Envelope Surcharge – Why It Exists and How to Avoid It

Square envelopes are one of the most requested shapes for modern wedding invitations – and the most consistently misunderstood at the post office. Here is exactly what you are paying for and how to work around it if needed.

The mechanical reason

USPS automated letter-sorting equipment reads each envelope by its aspect ratio (length divided by height). USPS Domestic Mail Manual section 401 defines a machinable letter as one with an aspect ratio between 1.3 and 2.5. A square envelope has an aspect ratio of exactly 1.0 – it cannot safely pass through the sorting rollers – so every square piece must be hand-sorted. That additional handling cost is passed on as the non-machinable surcharge: $0.49 per piece.

What else triggers the surcharge

Square shape is the most common trigger for wedding couples, but USPS DMM 401 lists several others worth knowing:

• Wax seals on the outer envelope – make the piece rigid, failing the envelope flexibility test
• Clasps, buttons, or string-and-button closures – protrude from the surface and jam rollers
• Envelopes containing items that are not uniformly flat – dried florals, coins, or embellishments inside
• Envelopes thicker than 0.25 inches at their thickest point
• Envelopes shorter than 3.5 inches or taller than 4.25 inches relative to their length

Three ways to avoid the surcharge

If the square aesthetic matters but the extra cost does not fit the budget, there are practical options:

• Use a rectangular outer envelope for mailing with a square inner envelope tucked inside. The outer envelope is fully machinable; guests open it to find the square reveal inside.
• Place the wax seal on the inner envelope only, keeping the outer mailing envelope flat and flexible.
• Choose a deep, non-standard rectangular envelope (A8 or A9 format) that keeps the square-ish visual without the exact 1:1 ratio.

Or simply budget for it. For a 100-guest list, $0.49 per invitation is $49 – a small line item against the total stationery spend, and the square envelope is genuinely one of the more elegant choices for a formal suite.

Hand-Canceling: What It Is and When You Need It

Machine sorting at USPS uses rollers and rubber stamps that can damage delicate envelopes, smearing ink, cracking wax seals, bending liner papers, or catching on embossed elements. Hand-canceling means a postal worker manually stamps each envelope with the postmark instead of running it through the machine.

When to request hand-canceling

Request hand-canceling if your invitations have any of the following:

• Wax seals on the envelope back or flap
• Liner paper inside the envelope that could buckle under machine pressure
• Embossed or debossed elements on the card face
• Vellum wraps, belly bands, or ribbons that create uneven surfaces

How to request hand-canceling

1. Bring all envelopes unsealed to your post office counter (staff sometimes need to check them).
2. Ask to have them hand-canceled. Most post offices accommodate this; some smaller branches do not, so call ahead if you are unsure.
3. Seal the envelopes at the counter if requested, or after staff have confirmed they will process them by hand.
4. If your local branch declines, try a larger post office nearby or ask to speak with a supervisor, the service is technically free and is an official USPS option.

Is there a hand-canceling fee?

Officially, USPS does not charge for hand-canceling. However, individual post offices sometimes quote a small fee, typically 5 to 20 cents per envelope. Whether that gets charged depends on the branch and the clerk. The non-machinable surcharge is a separate, mandatory fee for envelopes that cannot go through the machine; it applies regardless of whether you request hand-canceling or not.

Oversized Wedding Invitations and Postage

An invitation envelope that exceeds letter dimensions triggers the USPS large-envelope (flat) rate, starting at $1.69 for the first ounce domestic. Your suite falls into this category if the outer envelope is:

• Longer than 11.5 inches
• Taller than 6.125 inches
• Thicker than 0.25 inches

The large-envelope rate does not carry a separate non-machinable surcharge – the flat rate accounts for different handling. Weight still applies: additional ounces above 1 oz increase the cost. For practical budgeting, oversized mailing costs roughly $0.87 more per envelope than a standard 1-oz letter.

If your Paperlust invitation suite uses a landscape A4-style format or a multi-panel fold-out design, measure the stuffed outer envelope before buying stamps. A suite that sits at 6.1 inches tall fits standard letter dimensions; a suite at 6.2 inches does not. That 0.1-inch difference costs $0.87 per envelope across a full mailing. Bring one assembled, sealed sample to a USPS retail counter – they will gauge it against the standard sizer template at no charge.

RSVP Card Postage

Pre-stamping your RSVP piece is not optional – it is standard etiquette, and response rates drop measurably when guests have to find their own stamp. There are two cost tiers depending on how your response piece is designed.

RSVP postcard rate ($0.65)

A response card measuring between 3.5″ x 5″ and 4.25″ x 6″ (and between 0.007″ and 0.016″ thick) qualifies for the USPS postcard rate: $0.65 per piece. Most standard RSVP postcard designs fall within these dimensions comfortably. This is the most cost-efficient format – you save $0.17 per guest compared to the envelope format. Paperlust’s RSVP card designs include postcard-format options ready to pre-stamp at this rate.

RSVP card in a reply envelope ($0.82)

A separate reply envelope – often included in formal or luxury suites for black-tie events – needs a standard First-Class Forever stamp: $0.82. The traditional inner/outer envelope etiquette calls for this format, and for very formal weddings it remains the correct choice. Budget the $0.17 difference per guest against the formality level of your event.

Digital-only RSVP

If your response card directs guests to a URL or QR code, no pre-stamped return is needed. Always include at least one paper-based response option for older guests who may not be comfortable with online forms – a short reply address printed on the card itself works well as a backup.

International Postage From the US

Guests in Australia, the UK, Canada, or Europe each need their own Global Forever stamp on the outgoing envelope: currently $1.75 per 1-oz letter, valid for any country in the world. The Global Forever stamp works exactly like its domestic counterpart – it will remain valid at whatever the international letter rate is when you use it.

Destination	1-oz letter (standard envelope)	Large envelope/flat (1 oz)	Estimated transit – First Class Intl
Canada	$1.75	$3.30+	7-21 business days
United Kingdom	$1.75	$3.30+	7-21 business days
Australia	$1.75	$3.30+	7-21 business days
Europe	$1.75	$3.30+	7-21 business days
All other countries	$1.75	$3.30+	7-21 business days

Build in extra lead time for international guests

First-Class Mail International has no guaranteed delivery date. For guests in Australia or New Zealand, allow a minimum of 6-8 weeks before your RSVP deadline – or upgrade to Priority Mail International (estimated 6-10 business days) for those addresses. A small Priority Mail upgrade is cheaper than the alternative: a phone call chasing RSVPs from international guests a week before the cutoff.

Addressing international envelopes correctly

USPS requires the destination country name in English on the last line of the address, in capital letters (example: AUSTRALIA, UNITED KINGDOM, CANADA). If you use Paperlust’s envelope address printing service (approximately $0.20 per address), flag the international formatting requirement when uploading your guest list to ensure USPS compliance.

Vintage and Commemorative Stamps for Themed Weddings

Standard Love Forever stamps are genuinely lovely – but couples with a botanical, vintage, art deco, cottagecore, or nature theme often want something more specific. There are three reliable routes to unique postage that still meets current USPS rate requirements.

USPS Postal Store current catalog

Beyond the Love and Blooms series, the USPS Postal Store carries dozens of themed issues at any given time: botanical illustrations, birds and wildlife, American landscapes, art museum series, and seasonal flowers. All are sold at current Forever or Two Ounce denominations – they remain fully valid regardless of future rate changes. Browse the Love & Wedding category at store.usps.com/store or search by theme, color, or subject.

Bidpath and philatelic marketplaces

Bidpath.com (USPS’s own philatelic auction platform) and StampVacation.com stock discontinued USPS issues, including Love stamp designs going back to the 1970s. These are genuine USPS postage at face value – legally valid for mailing. One important caveat: vintage stamps with a face value below the current $0.82 rate need a supplemental stamp to make up the difference. A vintage Love stamp at $0.50 face value needs an additional $0.32 stamp alongside it.

How to estimate quantity without running short

Forever stamps do not expire and hold their value, so over-ordering is always the right call with a design you love. A practical formula:

• Outgoing invitations: guest count + 10% buffer for addressing errors and extras
• RSVP postage: same count as outgoing
• International pieces: count separately and buy Global Forever stamps for those addresses
• Keepsake extras: 5-10 additional of your chosen design for the memory box

Budgeting For Wedding Postage

Postage is one of the easier costs to calculate in a wedding budget – and one of the most commonly forgotten until the morning of the mailing. Here is a concrete cost model for a 100-guest list across four common configurations, using current July 2026 USPS rates.

Configuration	Outgoing (100 invitations)	RSVP pre-stamped (100 pieces)	Total postage
Rectangular, 1 oz, postcard RSVP	100 x $0.82 = $82.00	100 x $0.65 = $65.00	$147.00
Square, 1 oz, postcard RSVP	100 x $1.31 = $131.00	100 x $0.65 = $65.00	$196.00
Rectangular, 2 oz (full suite + vellum), envelope RSVP	100 x $1.11 = $111.00	100 x $0.82 = $82.00	$193.00
Square, 2 oz, wax seal, envelope RSVP	100 x $1.60 = $160.00	100 x $0.82 = $82.00	$242.00

These figures cover stamp postage only. If you use Paperlust’s envelope address printing service (approximately $0.20 per address), add $20-$40 for outer and return envelopes on a 100-guest list – still a small figure against the full stationery budget, and a significant time saving compared to addressing by hand.

For guidance on when to send your invitations, our wedding invitation timing guide covers the standard 6-8 week window and extended timelines for destination weddings. For addressing conventions including inner/outer envelope format and return address placement, see our how to address wedding invitations guide.

Mailing checklist before you go to the post office

1. All envelopes addressed and double-checked for spelling
2. Return address on every outer envelope
3. RSVP envelopes pre-stamped (if including)
4. One sample suite weighed and postage confirmed
5. All envelopes stamped consistently
6. Hand-cancel request confirmed with your post office if needed
7. Extras set aside for late additions or returned mail

Frequently Asked Questions

How much does it cost to mail a wedding invitation in the US in 2026?

A standard 1-oz rectangular invitation costs $0.82 – one Forever stamp. A square envelope adds the $0.49 non-machinable surcharge, making the minimum $1.31. Suites over 1 oz (vellum wrap, heavy letterpress paper, wax seal) jump to $1.11.

What wedding stamps does USPS sell in 2026?

Three designs are in active stock and well-suited for wedding envelopes: Love 2026 (Forever, $0.82, issued January 2026), Celebration Blooms (Forever, $0.82), and Wedding Blooms (Two Ounce, $1.11). All three are available at store.usps.com and most post office counters.

Can I use Forever stamps for a square wedding invitation?

Yes, but you need more than one. Square envelopes require a $0.49 non-machinable surcharge on top of regular letter postage. 1-oz square: $1.31 total. 2-oz square: $1.60 total. You can combine a $0.82 Forever stamp and a $0.49 stamp, or use one $1.31 combination stamp if available.

What is the USPS surcharge for non-machinable wedding invites?

The non-machinable surcharge is $0.49 per piece as of July 2026, per USPS Domestic Mail Manual section 401. It applies to square envelopes, wax-sealed envelopes, envelopes thicker than 0.25 inches, envelopes with closures that protrude from the surface, and envelopes containing rigid inserts.

Do RSVP cards need postage?

Yes – and pre-stamping is standard etiquette. RSVP postcards (3.5″ x 5″ to 4.25″ x 6″) cost $0.65 each. RSVP cards sent in a reply envelope cost $0.82 each. Unstamped RSVP cards should only be used when a digital response option (URL or QR code) is the primary method.

What does it cost to mail a wedding invitation weighing over 1 oz?

Between 1 oz and 2 oz: $1.11 for a rectangular envelope (the Wedding Blooms Two Ounce stamp covers this exactly). Add $0.49 if the envelope is square or wax-sealed for a total of $1.60. For rectangular envelopes over 2 oz: add $0.29 per additional ounce above the two-ounce base.

Do wax seals add postage cost?

Yes. A wax seal on the outer envelope makes it rigid, triggering the $0.49 non-machinable surcharge even on rectangular envelopes. To avoid it: place the wax seal on an inner envelope and use a plain, flexible outer mailing envelope. The reveal is preserved; the mailing envelope stays machinable.

How much does it cost to send a wedding invitation internationally from the US?

A USPS Global Forever stamp covers a 1-oz letter to any country for $1.75 – Canada, Australia, the UK, Europe, anywhere. Budget 7-21 business days for First-Class Mail International. For guests in Australia or New Zealand, mail at least 8 weeks before your RSVP deadline, or upgrade to Priority Mail International (estimated 6-10 business days).

What happens if I underpay postage?

USPS will return mail to your return address, charge the recipient postage due, or delay delivery. None of these are acceptable for wedding invitations. Always take one complete, sealed sample to the post office for hand-weighing before mailing the full batch.

Are Forever stamp prices going up in 2026?

Yes. The Forever stamp price rose from $0.78 to $0.82 on July 12, 2026. Forever stamps bought at the old price still cover a 1-oz letter with no extra postage.

Can I use vintage USPS stamps for my wedding invitations?

Yes. The USPS Postal Store carries many active designs beyond the Love and Blooms series. For discontinued issues, Bidpath.com (USPS’s own auction platform) and StampVacation.com stock older designs. Any stamp used for mailing must cover the current $0.82 rate – supplement vintage stamps with lower face values as needed.

When should I take my invitations to the post office?

Before buying stamps for the full batch. Bring one fully assembled, sealed sample – the clerk will hand-weigh it, confirm surcharge status, and validate postage. This 10-minute step can save you from the cost and frustration of restamping a full mailing. On timing: 6-8 weeks before the wedding is standard for domestic guests; 10-12 weeks for destination or international-heavy guest lists. See our full invitation timing guide for the complete send schedule.

Can I put two stamps on a wedding invitation?

Yes, you can use any combination of stamps that totals the required postage. Two Forever stamps equal $1.64, which covers a 2 oz square suite. You can also combine a Forever stamp with an additional-ounce stamp (total $1.11) for a 2 oz rectangular suite, or add a non-machinable stamp for square envelopes.

Is hand-canceling free at USPS?

Officially yes, USPS does not charge for hand-canceling. Some individual post offices quote a small per-envelope fee (5-20 cents), which may be waived if you ask. Hand-canceling is different from the non-machinable surcharge, which is a mandatory postage fee.

How do I weigh my wedding invitation suite?

Assemble one complete sample envelope with every insert, enclosure, and embellishment exactly as it will be mailed, then weigh it on a postal scale or kitchen scale. Alternatively, bring a sample to your local post office and ask a clerk to weigh it for you, it is free and takes a few minutes. This step is essential before buying stamps for your whole guest list.

Can I use a QR code instead of including an information card to save weight?

Yes, and it is a growing trend. Printing a QR code on your invitation or save the date that links to your wedding website cuts the details card from your suite entirely, reducing weight and the number of inserts. This can bring a full suite back under 1 oz and eliminate extra postage.

Why Couples Trust Paperlust for Wedding Stationery

Paperlust was founded in Melbourne in 2014 and has been recognized as a Westpac Business of Tomorrow. The studio offers exclusive invitation designs by independent Australian and international artists, printed in-house at the Melbourne studio across a full range of print methods – digital print, letterpress on Wild Cotton, flat foil, foil stamping, metallic print, and white ink on colored stocks.

Every Paperlust order includes:

• A dedicated professional designer who delivers your proof within 1-2 business days
• Two rounds of edits at no extra cost
• Free white envelopes included with every suite
• 100% happiness guarantee – free reprint or refund if you are not satisfied
• Free DHL express shipping on orders over $350 USD
• A tree planted with every order

When you’re ready to choose your invitations, browse the full Paperlust wedding invitation collection and use this postage guide to budget the mailing before you place your order.