Here is the catch. As of early November 2026, the IRS has not published a final 2027 Form 1040-V or its instructions. The latest address data applies to 2025, so this guide shows what is documented, what is not confirmed, and how to check before you post anything. It covers tax year 2027 returns, which are filed in 2028.
Key Takeaways
- Form 1040-V is a payment voucher for a mailed cheque or money order, not a tax return.
- Australians mail to a Charlotte, NC P.O. Box; that route is confirmed only for 2025.
- Online payment skips the voucher entirely.
- Verify the address on IRS.gov right before mailing, and keep proof of posting.
What Is Form 1040-V and When Do You Need It?
Form 1040-V is a statement sent with a cheque or money order for the balance due on the "Amount you owe" line of Form 1040, 1040-SR or 1040-NR, per the IRS voucher. It helps the IRS apply your payment to the right person, form and year.
When you don't need it
- You pay online. The IRS says not to complete the voucher in that case.
- Your return shows a refund or no balance due. The voucher exists for balance-due payments, so there is nothing to attach.
Check the final 2027 instructions for any exceptions once they appear.
How it differs from similar forms
- Form 1040: the income tax return itself. The voucher calculates nothing and replaces nothing.
- Form 1040-ES: used to figure and pay estimated tax.
- Form 1040-X: an amended return, not a payment voucher.
Each of these can have its own instructions and mailing address, so don't assume one envelope fits all.
Where to Mail Form 1040-V for 2027 Returns
The IRS Where to File page for Form 1040-V groups taxpayers by where they live, and Australia falls in the foreign-country group. For that group, the IRS address page lists:
Internal Revenue Service, P.O. Box 1303, Charlotte, NC 28201-1303 USA
Warning: That page says its addresses apply only to taxpayers filing during calendar year 2025. It is not a confirmed 2027 address. Prior-year envelopes, saved web pages and addresses copied from older articles may be outdated. Check IRS.gov immediately before mailing.
The payment address differs from the return address
A Form 1040 mailed with no payment goes to a different address (Austin, TX 73301-0215 for 2025). Verify the destination for each item you send.
What decides your address
- The form you are filing
- Whether a payment is enclosed
- The country or state on your return
- Any special filing category, such as dual-status aliens or Form 2555 filers
Private delivery services
A P.O. Box accepts only USPS deliveries. The IRS says a private delivery service cannot deliver a payment that must go to a P.O. Box, and its check-payment page says to use regular mail for a Form 1040-V payment.
IRS street addresses for couriers do not map an Australian voucher payment to any processing centre. Do not substitute a street address unless the IRS lists one for your filing situation.
How to Complete Form 1040-V and Prepare the Payment
Download the voucher from IRS.gov and confirm the printed tax year matches your return. Complete the form like this:
- Line 1: your SSN (or ITIN where the form asks for an SSN).
- Line 2: your spouse's SSN on a joint return.
- Line 3: the exact amount of the cheque or money order, in dollars and cents.
- Line 4: your name and address as shown on your return, including country and postal code.
Every number and address should match your return and payment. A transposed digit or a voucher amount that differs from the cheque can delay processing or misapply the payment.
Preparing the cheque or money order
- Make it payable to United States Treasury.
- Write your name, address, daytime phone number, SSN or ITIN, and the tax year and form (for example, "2027 Form 1040") on it.
- Never send cash.
Whether the IRS accepts a cheque drawn on an Australian bank is unconfirmed, so check with the IRS or your bank before relying on one. International wires, by contrast, must be in U.S. dollars.
Assembling the envelope
Don't staple or attach the voucher and payment to your return or to each other. Place them loose in the envelope. Scan or copy everything first.
How to Mail a Form 1040-V Payment From Australia
Distance changes the maths. Australia Post's guide lists delivery to the USA ranging from 2-4 business days to 15+ business days, and sea mail takes months. Estimates exclude customs time and delays outside its control.
Mailing checklist
- Verified IRS address for the correct tax year
- Enough postage for international mail
- A trackable service
- Proof of the posting date
- A payment instrument you've confirmed is acceptable
Deadlines
Qualifying U.S. citizens and resident aliens living abroad generally get an automatic two-month filing extension, usually to June 15. That extends filing, not payment. Interest runs on unpaid tax from the regular due date, generally April 15. Don't treat June 15, 2028 as confirmed until the IRS publishes it.
Proof of timely mailing
IRS Publication 17 describes timely mailing rules for U.S. postmarks, registered mail and certified mail. It doesn't confirm that an Australia Post postmark alone qualifies, so don't assume it does. Keep:
- A copy of the completed voucher
- A copy or image of the cheque or money order
- Tracking and posting receipts
- Any IRS or bank confirmation
Should You Pay the IRS Online or Mail Form 1040-V?
For many Australian taxpayers, online options remove the international mail risk and the voucher entirely.
| Option | Key facts |
|---|---|
| Direct Pay | Free, but needs a U.S. ABA routing number; SWIFT codes aren't accepted |
| Card payment | Processor fees apply (for example, debit around $2.15, credit from 1.75%); confirm whether your foreign card is accepted |
| Electronic Funds Withdrawal | Available when e-filing; confirm foreign-bank eligibility on IRS.gov |
| International wire | Possible from a foreign bank, in U.S. dollars, but can be costly |
| Cheque or money order | Needs Form 1040-V and international post |
Fees and eligibility change, so confirm current terms on IRS.gov. The best choice depends on whether you hold an eligible bank account or card.
Final checks
- Use the correct tax year.
- Confirm the foreign-country address.
- Match the voucher amount to the payment.
- Avoid paying twice. Check your bank statement and IRS payment activity before repeating a payment.
- Ask a qualified tax professional if your filing position is unclear.
VJM Global supports Australian clients with US individual tax return preparation and related cross-border compliance questions.
Frequently Asked Questions
Where should I mail Form 1040-V?
Australian residents use the foreign-country payment address in the current IRS Form 1040-V instructions. As of 2025, that address is the Charlotte, NC P.O. Box. Confirm it in the latest instructions before you mail.
What are the instructions for completing the IRS Form 1040-V payment voucher?
Enter your SSN or ITIN, your spouse's SSN on a joint return, the exact payment amount, and your name and address as on your return. Make the payment out to "United States Treasury" with your details on it.
Is Form 1040-V necessary?
It accompanies a mailed cheque or money order for a balance due. It's generally unnecessary for online payments, refunds or zero balances.
Is it better to pay the IRS online or by mail?
Online payment avoids international mail delays and needs no voucher. Mailing remains available if you need or prefer to pay by cheque or money order.
What's the difference between Form 1040 and Form 1040-V?
Form 1040 is the income tax return. Form 1040-V is a payment voucher sent with a mailed balance-due payment.
How do I mail a money order to the IRS?
Make it payable to "United States Treasury," add your name, SSN or ITIN, tax year and form, and include Form 1040-V. Send it loose to the verified address by trackable mail, and keep copies.
