unopost

Unopost

Post a letter or document online in two minutes, in Australia or to 180+ countries

Unopost prints and posts your letters and documents with Australia Post. Upload online, without a printer or post office queue. Printed and posted inside Australia. No printer, no trip into town.

Upload Word, PDF or photos. No need to convert to PDF first.

Post a document

Pay by 2:30pm Melbourne time on a business day and it goes out the same day, tracked.

Where it's going

$10Regular post3–7 business days

$20Express PostUsually next business day

  • All tracked
  • Colour printing included
  • Free pages: 12 by Regular post, 20 by Express, then $0.30 a page

Add signature on delivery to either for $6

Full refund if it isn't posted by the day we promise

All prices and the calculator →
  1. 01Upload
  2. 02Print
  3. 03Envelope
  4. 04Post

Upload Word, PDF or photos. No need to convert to PDF first.

PDF, Word or a photo (JPG, PNG, HEIC)up to 10 files, 80 pages and 50 MB

Pay by 2:30pm Melbourne time on a business day and it goes out the same day, tracked.

VisaMastercardAmerican ExpressJCBJCBApple PayGoogle Pay

Encrypted, and deleted once posted

The service

  • Free colour
  • Tracked
  • No account

Your document

  • Encrypted
  • Stored in Sydney
  • Deleted once posted
  1. 01Upload
  2. 02Check every page
  3. 03We post it, tracked

Upload and post

Document

Drop your files here or browse

PDF, Word or a photo (JPG, PNG, HEIC) · up to 10 files, 80 pages and 50 MB

Encrypted, and deleted once posted

Postage

Both include colour printing.

Flat B4 · Colour, single-sided

Envelope
B4 is bigger than A4, so your pages go in flat, never folded.
PrintingFree. Leave double-sided off for statutory declarations and other official forms.
Pages
Free. As printed, nothing attached.
TotalGST included. 20 pages, then $0.30 each, up to 80 pages.$20

Delivery times are Australia Post's estimates, not a guarantee. See delivery times.

Send to
Return address

Total$20

How to mail a letter online

Narrated in English, with captions.
  1. 01

    Upload

    A PDF, a Word document or a photo.

  2. 02

    Check every page

    Add the address and see every page before you pay.

  3. 03

    We post it, tracked

    Printed, enveloped and posted. We email you when you order, when it's posted and when it's delivered in Australia.

Where letters have gone

Already landing on doorsteps across Australia.

Physical mail, printed in Melbourne and posted Australia-wide.

The bigger the circle, the more letters. Updated October 2026.

NSWVICQLDSAWA

Your letter, just how you want it.

Every option is free, with every letter.

  • Flat or folded.

    Express Post goes flat in a B4, so pages leave us uncreased, or folded into a C5 for up to 20 pages. Regular post folds into a DL for up to 12.

  • Stapled or clipped.

    One staple, top-left, for up to 12 pages. Or a paper clip for up to 20, with no holes.

  • Colour, or black and white.

    Colour prints in colour at no extra cost. Or choose black and white for every page.

  • Many files, one letter.

    Add up to 10 files: the letter, the form, the receipts. Drag them into order and we print them just like that.

Several people

Write it once, not three times.

Paste their addresses and pay once. We print and post a copy to each.

  1. 01

    No retyping.

    From an email, document or spreadsheet. We check each address before you pay.

  2. 02

    One payment.

    For all the letters, at the same price per letter.

  3. 03

    Each letter tracked.

    Its own envelope, its own Australia Post tracking number.

Our promise

Two minutes from your screen to the post.

Some things still have to arrive on paper: a card for someone you love, a formal notice in a dispute. That shouldn't take a printer, a stamp or a trip to the post office.

  1. Done in two minutes

    No account, no printer, no queue. Post from your phone, wherever you are.

  2. Real people, in Melbourne

    We print, envelope and lodge every letter by hand.

  3. Private by default

    Your document is encrypted and deleted once your letter is posted. Names and street addresses are deleted 60 days after delivery.

From the team behind Unofax, used by people in 46+ countries.

What people post

Check the recipient accepts a printed copy. We post what you upload; we can't give advice.

Need something printed for yourself?We'll post your prints to you. Upload, type your own address, and it lands in your letterbox. Colour costs the same as black and white.Print for yourself $0.30a colour page, after the first 20

Why Unopost is different

  • Every letter in Australia

    Posted. Then delivered.

    1. Mon 14:25Order received
    2. Mon 16:40Posted
    3. Wed 10:02Delivered

    We tell you when it's posted, and again when it's delivered.

  • Tracked by Australia Post. From post office to letterbox.

    Every letter gets an Australia Post tracking number. Australia Post's tracking shows when it was first scanned and when it was delivered.

  • 12–20 pages included

    Colour printing, included.

    The first 12 to 20 pages are in the price, depending on the service you choose. After that it's $0.30 a page, colour or not.

  • Every business day

    Pay by 2:30pm. Posted today.

    Posted means handed in at a post office or dropped in an Australia Post street posting box. Tracking starts when Australia Post first scans it, which may be later. Pay by 2:30pm Melbourne time on a business day and we post it that day. If we don't, you're refunded in full automatically, and we still post it.

Frequently asked questions

How much does it cost to post a document?

Regular post is $10 for a letter of up to 12 pages, folded to fit a letterbox. Express Post is $20 for up to 20 pages, flat in a B4 envelope, then $0.30 for each page after that.

Prices include GST, printing, the envelope, postage and tracking.

Colour, double-sided and black-and-white printing, and stapling, are free with every service.

Signature on delivery is available with every service: $6 extra with regular post or Express Post, and included with International post. Regular post signed for is Registered post, $16 a letter.

Is it a physical letter, or an email?

A physical letter. We print your document on paper, put it in an envelope and lodge it with Australia Post, which delivers it to the recipient's letterbox or PO Box. Nothing is emailed to them.

How long does delivery take, and is it tracked?

Letters paid for by 2:30pm Melbourne time on a business day are lodged the same day, and otherwise by the next business day.

If we don't post it by 11:59pm Melbourne time on that day, we refund it in full, and still post it unless you ask us not to.

Express Post usually arrives the next business day within the Express Post network; regular post usually takes 3 to 7 business days.

Every letter is tracked, and we email the tracking number once it is lodged.

Delivery times are Australia Post estimates, not guarantees: see auspost.com.au/sending/delivery-speeds-and-coverage.

Can I get proof of posting?

Every letter is tracked. Australia Post's tracking record shows when it was first scanned at one of its facilities, and we email you the tracking number.

For a record of who received it, add signature on delivery ($6 extra). With regular post, that's Registered post, at $16.

Courts and agencies set their own rules for service, so check with them that tracking or a signature is enough.

What if no one is home to sign for my letter?

Australia Post usually takes it to the local post office for the recipient to collect, with ID. It's meant to leave a card, but cards sometimes go missing, so check the tracking number we email you: it shows when the letter is waiting at a post office, and which one. Let the recipient know so they can collect it.

If no one collects it, Australia Post sends it back to the return address on the envelope.

What documents can I send?

PDF, Word (DOC or DOCX), JPG, PNG and HEIC files, such as contracts, forms, notices and statutory declarations. A letter can combine up to 10 files, printed in the order you choose, with up to 80 pages and 50 MB in total.

Documents are printed exactly as shown in the preview, single-sided unless you select double-sided, which flips on the long edge like a book. Statutory declarations are always printed single-sided. Letters of up to 12 pages can also be stapled, or up to 20 pages paper-clipped, at no extra cost.

Is Unopost part of Australia Post?

No. Unopost is an independent service, made by the team behind Unofax. We print and envelope your letter in Melbourne and lodge it with Australia Post, which delivers it.

Real people answer every email to support@unopost.com.au.

Can I cancel a letter, and what does it cost?

Yes, for a full refund, until we start printing it. Open its status page from the link in your order confirmation email and choose Cancel this letter. Most letters are printed and lodged on the day of payment, so the window is short.

Once printing has started, you can't cancel it yourself. Email support@unopost.com.au with your reference straight away: we can usually still stop it, and refund what you paid less $0.30 a page for printing and a $5 manual handling fee. For a 3-page letter, that's $5.90.

Letters to several people are different. Once paid, you can't cancel them yourself. Email support@unopost.com.au straight away and we'll try to stop any not yet posted. Stopping them is manual work, so we may refund part of what you paid, at our discretion.

Once it's posted, it can't be cancelled. If we are unable to print or post your letter, we refund it in full.

Do you keep my documents?

No. Your files and their print-ready copy are permanently deleted once the letter is lodged with Australia Post, or after 14 days if it is not paid for or cannot be posted.

We therefore cannot reprint a letter.

We keep a record of each letter for receipts, support and tax. Names and street addresses are deleted from it 60 days after delivery.

Can I send a handwritten letter or a card?

Yes, as a printed copy. Scan or photograph each page and upload it; we print it in colour on A4 paper, exactly as shown in the preview.

We post only the pages we print, so we can't send an original, a card or anything else in the envelope.

Can I sign my letter?

Yes, before you upload it. Sign the page and scan or photograph it, or add an electronic signature to the file. We print it as uploaded; we can't sign for you.

If the recipient needs an original signature in ink, check that a printed copy is acceptable.

How do I pay?

By Visa, Mastercard, American Express or JCB card, or with Apple Pay or Google Pay on an eligible phone or browser: if you can usually pay with either, you can here. You pay on this page, through Square: your card details go straight to Square, so we never see them. Your order confirmation email links to your tax invoice.

Do I need an account?

No. There's nothing to sign up for or log in to. We ask for your email only to send your order confirmation and the letter's Australia Post tracking number.

Where is my letter posted from?

Melbourne, Australia. We print and envelope your letter here and lodge it at an Australia Post outlet in Melbourne.

It then travels as an ordinary domestic letter to any Australian address, so nothing arrives from overseas and no international postage applies. A letter to an address overseas goes from Melbourne by International post.

Do you post on weekends and public holidays?

You can order at any time. We lodge letters on business days, Monday to Friday, except Victorian public holidays. A letter paid for on a weekend or holiday is posted the next business day.

What if my letter is lost or returned?

Once lodged, your letter is in Australia Post's care. If it goes missing, lodge an enquiry with Australia Post directly, using the tracking number we emailed you: see auspost.com.au/mypost/track.

We aren't obliged to refund or resend a letter lost or delayed in the post, but we consider each case.

Undeliverable mail goes back to the return address on the envelope, not to us.

What if I entered the wrong address?

Email support@unopost.com.au with your reference straight away. If the letter hasn't been posted yet, we'll do our best to correct the address and let you know whether we could.

Once it's posted, we can't change the address or refund the letter.

How do I check my letter's status?

We email the Australia Post tracking number once your letter is lodged. Its status is also shown on our site, in the browser you sent it from.

Will I be told when my letter is delivered?

Yes. We email you the Australia Post tracking number once your letter is lodged, and email you again when Australia Post's tracking shows it delivered.

Does anyone read my document?

No. Your letter is printed and put in its envelope by hand, so the person doing that may see its pages, but they don't read, copy or keep them.

We look at a document only if the law requires it, or to sort out a problem with your letter or a support request.

Is my return address on the envelope?

Yes. We ask for a return address with every letter and print it on the envelope, so undeliverable mail comes back to you. It can be anywhere in the world.

Can you post to any address in Australia, including a PO Box?

To any street address or PO Box in Australia.

For a PO Box, enter "PO Box 123" in the street address line, followed by the post office's suburb and postcode. To post overseas, switch the postage from Australia to Worldwide for International post, tracked and signed for on delivery. It has no customs form, so anyone can send it.

Can I post a letter to Australia from overseas?

Yes. Upload your document and pay by card from anywhere. We print and post it within Australia as a domestic letter, so no international postage applies.

Prices are in Australian dollars, and your bank may charge a currency conversion fee.

If the recipient requires an original signature, confirm that a printed copy is acceptable.

Are documents printed in colour or black and white?

As uploaded, at no extra cost: colour pages are printed in colour and black-and-white pages in black and white.

You may also choose black-and-white printing for the whole document. Printed colours may differ slightly from your screen.

What envelope do you use?

Express Post letters go flat in a B4 envelope by default, so pages leave us uncreased. For letters of up to 20 pages, you can instead have them folded in half into a C5 envelope, at no extra cost. We can't control creasing in transit: an envelope left in a letterbox can be bent to fit. To have it handed over, add signature on delivery.

Regular post letters are always folded in thirds to fit a DL or larger envelope, which fits most letterboxes, so regular post takes letters of up to 12 pages. Longer letters go by Express Post.

How many pages can I send?

Regular post and Registered post: up to 12 pages, folded.

Express Post: up to 80 pages. The first 20 are included, then each page is $0.30.

International post: up to 80 pages. Up to 12 can be folded into the small envelope; longer documents go flat in the B4 envelope.

Can I post a letter or document without a printer?

Yes. Upload a PDF, Word document or photo, and we print it on 80gsm A4 paper, place it in an envelope and lodge it with Australia Post.

The recipient receives a printed paper letter.

Can I have a document printed and posted to myself?

Yes. Enter your own name and address as the recipient. Express Post suits this best: your pages arrive flat in a B4 envelope, usually the next business day within the Express Post network, and colour costs no extra.

Can I send the same letter to several people?

Yes. Choose Several under Send to and paste their addresses. You pay once, and each person gets the same letter in their own envelope, with its own Australia Post tracking number.

Do I get a tax invoice?

Yes. Square issues it the moment you pay, and your order confirmation email links to it. It shows the total, the GST included in it and our ABN.

If it is not in your inbox, check your spam or junk folder, then email support@unopost.com.au and we will resend it. For a letter ordered through the x402 API, email us with the jobId.

Can I send advertising or bulk mail?

No. Unopost is for individual letters and documents, not advertising or promotional mail. Letters that breach our acceptable use policy are cancelled: see unopost.com.au/terms.

Can apps and AI agents send letters?

Yes. Our x402 API lets software order and pay for a letter in USDC, without an account or API key.

These letters are printed and posted in the same way as website orders. See unopost.com.au/x402 for details and pricing.

How do I contact you?

Email support@unopost.com.au, with your letter's reference if you have one. Real people answer, usually within one business day. Support hours are 9am to 5pm Melbourne time, Monday to Friday.

From the blog

You've written it. That was the hard part.

Post a document

Pay by 2:30pm Melbourne time on a business day and it goes out the same day, tracked.

Made in Melbourne by the team behind Unofax. Real people answer support@unopost.com.au, usually within one business day. ABN 54 837 123 965.