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▶Wedding Guest List & RSVP Tracker
Two stamps are not enough. This one prices every piece.
Every guest list counts your guests. Not one of them prices your mail. This one measures every envelope, applies the current USPS rate card, and tells you what the mailing actually costs — before it goes out short paid and comes back.
- Every mailing priced piece by piece against a dated, editable USPS rate card
- The aspect-ratio test, the surcharge trigger and the minimum-size test, computed
- A chase list that sorts outstanding households by how far past their date they are
- The catering guarantee shown as what a seat is worth, before the count locks
- Your own acceptance rate, computed from your own replies — no borrowed rule of thumb
Overview
Two stamps are not enough. This one prices every piece.
Every guest list counts your guests. Not one of them prices your mail. This one measures every envelope, applies the current USPS rate card, and tells you what the mailing actually costs — before it goes out short paid and comes back.
A square envelope has an aspect ratio of 1.000. USPS needs between 1.3 and 2.5, so a square pays a 49-cent surcharge: the worked sample’s 2.1-ounce square invitation costs $1.89 while the identical suite in a standard A7 envelope costs $1.40. Two Forever stamps is $1.64 — 25 cents short on all 84 pieces, and short-paid mail is returned for postage. The same tab flags a 4.5 by 3.25 inch reply card as nonmailable, because it is under the USPS 5 by 3.5 minimum and cannot be mailed at any price.
What's Included
One workbook, 12 tabs, in four color editions:
- Wedding-Guest-List-RSVP-Tracker.xlsx: the 12-tab workbook with 2,613 formulas, opening in Microsoft Excel, Google Sheets and Apple Numbers
- The same workbook in a Light, a Dark and an Editorial edition, so it reads on any screen and prints cleanly
- A worked sample of 84 households and 148 guests you can read, then delete
- A full narrated video walkthrough of every tab
Key Benefits
Why this one
The sample mails three times: a save-the-date postcard at $0.65, a square invitation at $1.89 and reply-card return postage at $0.65, which is $267.96 across 252 pieces. The couple had bought two Forever stamps for the invitation, $1.64 against $1.89 required, so all 84 pieces were 25 cents short and short-paid mail is returned for postage. The tab tells you that before the stamps are bought, not after the tray comes back.
To run the sorting machines a letter’s length divided by its height has to fall between 1.3 and 2.5. A square is 1.000 and pays a 49-cent surcharge; a standard A7 at 7.25 by 5.25 inches is 1.381 and pays nothing. The same 2.1-ounce suite is $1.89 in one and $1.40 in the other, and across this mailing that single decision is $41.16.
The USPS minimum mailable size is 5 by 3.5 inches. The petite reply cards stationers sell — 4.5 by 3.25 is a common one — are under it, and they are not more expensive to mail, they are nonmailable at any price. The sample carries one, and the Postage Calculator returns NONMAILABLE before anything is printed.
Six households are outstanding and eight guests are unaccounted for. The Chase List sorts them by how far past their reply date they are, so the four that are ten days overdue come first and the two whose date has not arrived yet are left alone.
Catering contracts bill on the count you commit to or the actual attendance, whichever is greater, and that count locks days out and cannot be lowered. The sample commits 117 against a projection of 112: five seats paid for and empty at $118 a plate, which is $590, plus six vendor meals at $35. The file does not recover that money. It puts the outstanding households in front of you while the number can still move.
Every guest list on the internet says to expect 80 percent to say yes. That is professional opinion, not a measurement, and there is no survey behind it. This workbook prints no attendance prediction as a fact; it computes the couple’s own rate — 79.05 percent here, from 117 yes out of 148 — and it moves every time somebody answers.
Who It's For
Built for
- Couples doing their own invitations and their own guest list
- Anyone who has been handed the job of chasing replies before a deadline
- Anyone choosing between a square envelope and a standard 5 by 7, who wants the price of that choice before the print run
- Anyone who has to hand a caterer a final number and would like to know what it commits them to
How It Works
Up and running in minutes
Your wedding date, the mailing dates, the reply-by dates and the final-count deadline, plus the USPS rates and what a plate costs. Countdowns read an as-of date you type, so the file reads the same whenever you open it.
Length, height, thickness and weight for the save-the-date, the invitation and the reply card. The Postage Calculator does the ratio, the size test, the class and the surcharge from there.
Side, relationship, RSVP, meal, dietary, plus-one, child and table. Every count in the workbook follows from that one tab.
It sorts the outstanding households by how far past their reply date they are, and tells you which ones to call rather than email.
Counts by meal, adults, children and vendors, and what the count is worth per seat while it is still yours to change.
Why It's Different
Not another template
The word "formula" appears in none of the eight page-one competitors, on a shelf that is entirely spreadsheets. Postage, the surcharge, the minimum size and the catering guarantee are all absent too. This workbook computes all of them, and it prints no attendance prediction as a fact — because the rule everyone repeats has no survey behind it.
Delivery & Compatibility
Instant, and it opens in what you already use
As soon as your order is complete you get instant access to download the ZIP, so you can measure one envelope tonight and know what the mailing costs before you buy a stamp.
Five .xlsx workbooks (Wedding-Guest-List-RSVP-Tracker.xlsx plus the Colorful, Light, Dark and Editorial editions) delivered as one ZIP, instant download. Portable formulas only — no macros, no add-ons, no account and nothing to cancel. Opens in Microsoft Excel, Google Sheets and Apple Numbers.
FAQ
Questions, answered
Will it work in Google Sheets?
Yes. Every formula is portable and the file is built and tested in Excel, Google Sheets and Apple Numbers.
Are the postage rates current?
They are the USPS rates effective July 12, 2026, and they sit in a dated, editable block on Setup. When rates change you type the new ones in one place.
Does it tell me how many guests will come?
No, and that is deliberate. The 80 percent rule is professional opinion, not a measurement. The file computes your own acceptance rate from your own replies instead.
Can I use it after the invitations are out?
Yes. Skip the Postage Calculator and start on the RSVP Tracker and Chase List; the counts and the guarantee still work.
For personal use. A planning tool that organizes the guests, addresses, replies and counts you enter; not postal, tax or legal advice. Postage prices, mail standards and catering terms change and vary by carrier and venue — confirm a stuffed sample at a retail counter and confirm your guarantee terms with your caterer.
