When to Use 1st Class vs. 2nd Class Post
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While both 1st and 2nd class stamps get your mail where it needs to go, there are some key differences — and opportunities to save if you use them smartly.
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1st Class is ideal when speed matters. Letters usually arrive the next working day, which is perfect for important documents, last-minute birthday cards, or urgent business post.
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2nd Class takes 2–3 working days but costs less. It’s great for everyday use — especially when you're sending non-urgent mail or posting in bulk.
Here are a few quick examples:
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✅ Use 1st Class for wedding invites with a tight RSVP deadline.
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✅ Use 2nd Class for monthly invoices, newsletters, or holiday cards sent well in advance.
Mixing and matching based on your needs can lead to significant savings over time, especially for small businesses or regular senders.