How to Send a Parcel With Royal Mail: Step-by-Step From Packing to Proof of Postage

Overview

This article gives you a repeatable checklist for Royal Mail parcel posting, from packing to proof of postage. It is written for beginners, but it is also useful if you only send parcels occasionally and want a quick refresher before you head to a branch or buy postage online.

At a high level, sending a parcel usually looks like this:

1. Decide what you are sending and whether there are any restrictions.
2. Pack it securely for sorting, handling, and transport.
3. Measure and weigh it accurately.
4. Choose the service level you need.
5. Buy Royal Mail postage online or at a branch.
6. Attach the label or address clearly.
7. Hand it over for posting or collection.
8. Keep your receipt, reference, or proof of postage.

That sequence sounds simple, but each step matters. A parcel that is packed poorly can arrive damaged. A parcel that falls into the wrong size band can cost more or be delayed. A sender who leaves without proof of postage may have a harder time if the item goes missing later.

If you are unsure about parcel dimensions before you start, keep a size guide handy. Our Royal Mail Size Guide: Letter, Large Letter, Small Parcel and Medium Parcel Limits is useful for checking whether your packaging choice still fits the service you intend to use.

It also helps to think in terms of outcomes, not just postage types. Ask yourself:

• Do I need the cheapest acceptable option?
• Do I need tracking or a delivery scan?
• Do I need a signature or stronger delivery proof?
• Do I need the parcel to arrive quickly?
• Do I need compensation cover suitable for the value of the contents?

Those questions make it much easier to choose a service without overpaying or under-protecting what you are sending.

Checklist by scenario

Use the checklist below based on the type of parcel you are sending. The core steps stay the same, but the details change depending on what matters most: cost, speed, proof, or convenience.

Scenario 1: Sending a personal parcel, gift, or household item

This is the most common beginner scenario. You are posting something to a friend, family member, or buyer, and you mainly want a straightforward way to send it safely.

• Choose a sturdy outer package. Use a box if the item is fragile or oddly shaped. A padded envelope may suit soft or flat items.
• Protect the contents inside. Add cushioning so the item does not shift during handling.
• Remove or cover old labels. Reused boxes are fine if the old barcodes and addresses are fully obscured.
• Write or print the delivery address clearly. Include the full postcode and check for spelling errors.
• Add a return address. This is easy to skip, but useful if there is a delivery problem.
• Measure and weigh the parcel. Do not guess. Small differences can affect service eligibility.
• Compare postage options. If timing matters, review service differences before buying. See Royal Mail Delivery Times: 1st Class, 2nd Class, Tracked and Special Delivery Compared.
• Buy postage and keep the receipt. Whether you post online or in person, keep some form of sending evidence.

Scenario 2: Sending an online sale

If you have sold something through a marketplace or social platform, proof matters more. You may need to show that you posted the item and, depending on the platform, possibly that it was delivered.

• Pack with the buyer experience in mind. A neat, secure parcel reduces disputes and damage claims.
• Use the exact buyer address provided at checkout. Avoid manual reformatting unless you are correcting an obvious error.
• Choose the right level of delivery evidence. Basic proof of postage may be enough for low-risk items, but some sales are better suited to signed or tracked services. See Recorded vs Signed For vs Tracked: Choosing the Right Proof for Important Parcels.
• Photograph the item and parcel before sending. This is not a formal requirement, but it can be useful if there is a dispute about condition or packaging.
• Keep the posting receipt and any tracking reference. Store them until the buyer confirms delivery or any return window closes.

Scenario 3: Sending a return

Returns are often the easiest parcels to send, but they still go wrong when labels are attached poorly or instructions are missed.

• Read the retailer's return steps first. Some returns require a specific label, QR code, or reference inside the parcel.
• Reuse original packaging only if it is still strong enough. If the box is torn or weak, replace it.
• Remove old delivery labels. Leaving multiple barcodes visible can cause confusion.
• Seal the parcel securely. Returns often travel in boxes that have already been opened once.
• Keep the return receipt. Do not rely on memory if the retailer later says the parcel was not received.

For more on return shipping workflows, see How to Create and Use Return Labels: A Simple Guide for Buyers and Sellers.

Scenario 4: Sending something valuable, urgent, or hard to replace

For important items, this is where many people regret choosing the cheapest option. Speed is only one part of the decision; proof and compensation are just as important.

• Check whether the contents are suitable for the service you plan to use.
• Review service features carefully. Delivery aim, tracking, signature, and compensation can differ.
• Pack to a higher standard than usual. Use a rigid box, internal padding, and strong tape.
• Retain detailed records. Keep the receipt, any service confirmation, and a note of the contents and value.
• Understand the claims process before posting. If something goes wrong, your paperwork matters. See Royal Mail Compensation and Claims Guide for Lost, Damaged or Delayed Mail.

Scenario 5: Buying postage online and arranging posting or collection

If you want to avoid queues, buying postage online can be convenient. It also makes it easier to compare options before you commit.

• Enter the parcel size and weight carefully. Double-check the figures before paying.
• Print the label clearly if required. Avoid faded ink, cut-off barcodes, or wrinkled paper.
• Affix the label flat on the largest face of the parcel. Do not tape over key barcode areas unless the print remains fully scannable.
• Choose whether to drop off or arrange collection, if available.
• Save the confirmation email or reference. Treat digital proof as seriously as a paper receipt.

If you run a small online shop or post parcels regularly, you may also want to review How Business Parcel Collection Works: A Guide for Small Online Sellers.

Scenario 6: Sending abroad

International parcels add customs and country-specific rules, so they deserve a separate check.

• Confirm the destination format and postcode details.
• Complete any customs information accurately. Vague descriptions can cause delays.
• Be realistic about delivery times. International delivery usually involves more variables than domestic post.
• Keep all paperwork and references.

For a fuller overview, read International Postage Explained: Costs, Customs and How to Avoid Delays.

What to double-check

This section is your pre-posting pause. Even experienced senders benefit from stopping for one minute before they buy postage or hand the parcel over.

1. Size and weight

Many posting problems begin here. A parcel can look small enough while still sitting just outside the limits of a pricing band. Measure the packaged parcel, not the item on its own. Weigh it after all tape, filler, labels, and inserts have been added.

If your parcel is close to a threshold, recheck it. One common mistake is choosing a box that leaves too much unused space, pushing the parcel into a larger category.

2. Address accuracy

Check the full name, building number, street, town, and postcode. If you are copying an address from a message, be especially careful with postcode characters and flat numbers. A clear address is one of the simplest ways to avoid delay.

3. Return address

It is easy to overlook, but adding a return address can help if the parcel cannot be delivered. Place it where it will remain readable even if the main label is damaged.

4. Service level

Make sure the service matches the item. Ask whether you need speed, tracking, signature, or stronger compensation terms. If you are comparing options, our Royal Mail Prices Guide: Stamps, Letters, Large Letters and Parcels and Comparing UK Shipping Prices: How to Use a Postage Calculator to Save Money can help you think through cost versus features.

5. Label placement

The label should sit flat, be easy to scan, and not wrap around edges in a way that interrupts the barcode or address. If writing by hand, use dark ink and block capitals where possible.

6. Packaging strength

Hold the sealed parcel and ask a practical question: would this survive stacking, sliding, or a knock in transit? If the answer is maybe, improve the packaging now rather than later.

7. Proof of postage

Before you leave the branch or close the browser tab, make sure you have evidence that the parcel entered the mail system. Proof of postage Royal Mail records can include a receipt, a posting confirmation, or a service-specific reference depending on how you bought the postage and how you posted the item.

Keep that proof until the parcel is delivered and any issue window has passed. If the parcel goes missing, start with What to Do When a Parcel Goes Missing: Steps to Claim Compensation and Locate It Fast.

Common mistakes

Most parcel-sending issues are avoidable. Here are the mistakes that cause the most friction for occasional senders.

• Guessing the size or weight. This can lead to the wrong postage being bought.
• Using weak or oversized packaging. Too little protection increases damage risk; too much box space can increase cost and movement inside.
• Leaving old barcodes visible. Reused boxes are practical, but old labels need to be fully covered or removed.
• Choosing a service based on price alone. Cheap can be fine for low-value items, but it may not suit urgent or valuable parcels.
• Not checking restrictions. Some contents need special care or may not be suitable for posting in standard ways.
• Forgetting a return address. This makes undeliverable items harder to recover.
• Attaching the label poorly. Creased labels, loose corners, or unreadable handwriting can slow processing.
• Throwing away the receipt too soon. Your proof matters if there is a delay, dispute, or compensation claim.

A practical habit is to create your own sending routine: pack, measure, photograph, buy postage, label, and store proof in the same order every time. That consistency reduces errors, especially when you are busy or sending more than one parcel at once.

When to revisit

This guide is designed to be reusable, and there are a few moments when it is worth coming back to it before you send your next parcel.

• Before seasonal peaks. If you post gifts or online sales during busy periods, review your process early so you are not making rushed decisions.
• When service options or workflows change. Online buying steps, branch processes, and label formats can evolve over time.
• When you start selling online. The proof you need for a marketplace sale is often different from what you need for a personal parcel.
• When posting a higher-value item than usual. Recheck compensation, tracking, and proof requirements rather than using your standard low-cost method.
• When sending internationally for the first time. Customs steps deserve a fresh review.

For a practical next step, use this mini checklist before every parcel:

1. Pack the item so it cannot move freely.
2. Measure and weigh the finished parcel.
3. Check the address and add a return address.
4. Choose the service based on value, urgency, and proof needed.
5. Buy Royal Mail postage and attach the label clearly.
6. Get and keep proof of postage.
7. Save any tracking or reference details until the parcel is safely delivered.

If you treat that list as your standard routine, sending parcels becomes much less stressful. You do not need to memorize every service detail each time; you just need a dependable process. And when prices, service features, or posting tools change, you can revisit the linked guides above to update the parts that affect your next parcel.