If you run mail at any volume out of Ireland, postage is almost certainly the biggest single line in the budget — bigger than print, bigger than envelopes or polywrap film, bigger than the labour to put it all together. That makes it the one line where a bit of preparation has an outsized effect on what a mailing actually costs to run. We’ve spent over 35 years preparing mail for An Post’s bulk schemes at our Dublin 3 facility, and the same handful of things come up again and again when a mailing is paying more postage than it needs to.
Why postage dominates the budget
On a typical bulk mailing, postage often runs to something like two-thirds or more of the total cost, with print, materials and handling making up the rest. That ratio means a small percentage saved on postage is usually worth more than the same percentage saved anywhere else in the job. It also means the reverse is true: a mailing that’s badly prepared for postage can quietly cost a lot more than it should, without anything about the print or the pack looking obviously wrong.
Start with the data, not the format
The single cheapest saving on almost any mailing is deduplicating and validating the list before anything goes to print. Duplicate records and dead addresses don’t just look untidy in a spreadsheet — every one of them is postage spent on an item that was never going to arrive or was always going to double up. Clean data is also what makes An Post’s discount schemes work properly in the first place, since sortation is only as effective as the addresses behind it. We cover this in more detail in our data management and addressing service.
Sortation is where the real saving sits
An Post’s bulk mail schemes reward mail that’s sorted and prepared in specific ways before it’s handed over — batched, formatted and sequenced to a standard that qualifies for a better rate than posting items individually. This isn’t a niche discount for huge mailers; it’s a routine part of how any regular bulk mailing should be prepared, and it’s often the single biggest lever available once the data is already clean. See our An Post sortation and postage savings page for how we build this into every run.
Format and weight decisions that quietly cost you
Postage rates step up at specific weight and size thresholds, and it’s easy to cross one without realising until the invoice arrives. A slightly heavier paper stock, an extra insert, or a pack that’s a few millimetres over a size threshold can tip a whole run into a more expensive band. The cheapest time to catch this is at the quote stage, before anything is printed — not after, when the only options left are to accept the cost or reprint. If you’re deciding between formats, our polywrapping and magazine mailing page covers where polywrap tends to be the more postage-efficient choice over an envelope.
What this means if you’re mailing into Ireland from the UK
UK businesses sending mail or fulfilment into Ireland face the same postage mechanics, with the added wrinkle of coordinating a cross-border job. Preparing and sorting the mailing at the Irish end, rather than posting individually from the UK, is usually the more cost-effective route for anything above a small volume — and it means one point of contact handles the data, the format and the postage together, rather than splitting the job across two suppliers in two countries.
Getting a postage review
None of this requires guesswork on your part. If you already run a regular mailing and have never had someone check whether it’s sorted as efficiently as it could be, that’s usually a quick, no-obligation conversation — and it’s often where the easiest saving on your whole mailing budget turns out to be hiding.