How many stamps to mail my tax return

The number of stamps needed to mail your tax return depends on the weight and size of the envelope, as well as the destination. Here are some general guidelines:

• For a standard-sized envelope (up to 1 oz) containing a tax return, you will need:
  • 1 first-class stamp (currently $0.55) for domestic mail (within the United States)
  • 1 international reply coupon (IRC) or 1 global stamp (currently $1.20) for international mail (outside the United States)
• For a larger envelope (over 1 oz) containing a tax return, you will need:
  • Additional ounces of postage, which are calculated at a rate of $0.15 per ounce
  • For example, if your envelope weighs 2 oz, you would need 2 additional ounces of postage, which would be $0.30

It's a good idea to check the weight and size of your envelope before mailing it, as this will help you determine how many stamps you need. You can also use a postage calculator or consult with a postal worker if you're unsure.

Additionally, you can also consider using a certified mail service, which provides proof of mailing and delivery. This service typically requires an additional fee, which varies depending on the type of service you choose.

It's also important to note that the IRS recommends using a trackable shipping method, such as certified mail or a shipping service that provides tracking information, to ensure that your tax return is delivered to the IRS.