How many stamps to mail large envelope

Large Envelope. Max. 353mm (L) x 250mm (W)x 25mm (D) Weight. First Class. 0 - 100g. 2 stamps. 101 - 250g. 3 stamps. 251 - 500g.

How many stamps to mail large envelope. First Class large envelope (flats) - 1 oz: $1.39 ... Priority Mail (Medium Flat rate box): $18.40 Priority Mail (Large flat rate box): $24.75 Media Mail (1 lb): $4.13 Media Mail (2 lbs): $4.87 USPS postage guide USPS's postage calculator: You need this many stamps: * Tries to find the absolute minimum but may miss by a stamp or a few cents ...

Oversized postcards need letter stamps, which start at $0.68. Large Envelopes. Large envelopes (flats) start at $1.39. Weight, Size, & Shape Requirements. Maximum weight for First-Class Mail letters is 3.5 oz; for large First-Class Mail envelopes, the maximum weight is 13 oz.

Mailing in a manila envelope will cost you 58 cents for the first ounce and then $0.22 for each additional ounce. You can purchase stamps at any post office or retail outlet. The cost of domestic mail stamps will stay at $0.55 for the next decade, but the cost of living will increase by 5 cents by 2020.When sending greeting cards through the USPS, a typical card can be mailed for the cost of one postage stamp. In 2023, a 1 oz First-Class Mail postage stamp costs $0.66 at the Post Office. Smaller greeting cards that do not require envelopes (measuring min. 5" L, 3.5" H, 0.007" W, and max. 9" L, 6" H, 0.016" W) may also be eligible for postcard ...How many stamps do I need for a 4 oz large envelope? 4 x Domestic Forever Stamps, 1 x 5 cents stamp, plus 1 x 15 cents Additional Ounce stamp. This will cost you $2.40 in total. ... Maximum weight for First-Class Mail letters is 3.5 oz; for large First-Class Mail envelopes and parcels the maximum weight is 13 oz.Mailpiece Weight 2019 2018 Metered Mail Letters (Stamps.com Rate) Extra Ounces $0.15 $0.21 Flat/Large Envelope 1 oz. USPS Announces Postage Rate Increase Starts January 27, 2019 First Class Mail - 2019 Rates INCREASE PER LETTER Additional Ounces $0.15 $0.21 $1.00 Flat/Large EnvelopeThe 2022 postage rate for First-Class Mail flat or large envelopes start at $1.20. You can put a maximum weight of 13oz of content inside a 9×12-inch envelope. Multiply the additional ounces by $0.24 to get the total cost. Sometimes the distance affects the prices of certain types of mail.A manila envelope needs a different quantity of stamps based on its size and weight. Since August 2019, a manila envelope with a small size (including 5×7 and 6×9) and weighing less than 1 ounce needs 1 Forever Stamp. However, the larger one (9×12 in size) classified as the flat mailing is required two Forever stamps at least.Not only does Stamps.com tell you exactly how much postage is required to send your mail to any domestic or international destination, but it also lets you print official, USPS …Below are the rates for standard envelopes for normal envelopes like a letter or birthday card, no bigger than 11.5" x 6+⅛" (see envelope requirements). The postal service refers to large envelopes as 'flats.' — View rates for flats. 1 ounce ($1.55) One Global Forever stamp ($1.55)

To figure out the correct number of stamps, use the following guide. You will need approximately 3.5 to 5.0 stamps for a large envelope. Large envelopes. This includes 9×12, legal, and manila envelopes, Two stamps are needed for the first ounce, and postage will be an additional $0.20. International mail.For standard postage, the cost starts at $0.40 for a standard-sized postcard, $0.58 for a regular envelope, $0.58 for an oversized postcard, and $0.88 for oversized, square, or unusual envelopes. The cost of sending everything from a large envelope to a little parcel is between $1.16 and $4.50. Additional fees may apply for nonstandard packages ...A standard envelope weighs 6.75 g when empty. Since a single-page letter weighs at least 4.5 g, the total weight of an envelope would be nearly 11.25 g. It measures 4.125” x 9.5” or a little bigger or smaller. However, most people write the weight of a letter envelope #10, #20, etc.The First-Class postage scale for flats as of Jan. 30, 2020, starts at $1.00 for a 1 ounce mailing and maxes out at $3.40 for 13 ounces, the top weight allowed for first class mail. If you are using a regular First-Class stamp, its value is 55 cents, so it would take two stamps to ship at a 1 ounce weight and seven standard stamps for a 13 ...Due to the postal machines that sort the mail, the envelope size may require additional postage. For example, a square envelope requires additional postage. To meet the standard envelope requirements for using only one Forever Stamp, the envelope needs to be a minimum of 3.5 inches in height by 5 inches in length and the thickness must be a ...Whether you need to send a letter, a postcard, or a package, you can find the right stamps for your First-Class Mail at the USPS.com Postal Store. Browse our selection of stamps featuring various themes, designs, and denominations. You can also check the latest prices and news on stamps and mailing services.Priority Mail (Flat rate envelope): $9.85 Priority Mail (Small Flat rate box): $10.40 Priority Mail (Medium Flat rate box): $18.40 Priority Mail (Large flat rate box): $24.75 Media Mail (1 lb): $4.13 Media Mail (2 lbs): $4.87 USPS postage guide USPS's postage calculator: You need this many stamps:

poopittypoo. • 3 yr. ago. If the package exceeds 1/2" at the thickest part, it cannot be sent with just stamps. That's called "anonymous mail.". So you are most likely going to be taking it to the counter to send it first class or printing off a priority click n ship label. As for the cost, it could be considered a large envelope if A ...When a piece of First-Class Mail exceeds any one of the maximum measurements of a large envelope, it is classified and priced as a package. When a First-Class Mail large envelope or flat-size piece is a box or has contents that make it rigid, it is classified and priced as a package. See DMM 101.1.2 for further information.Media Mail. 2-9 days*. $4.13 and up. Free USPS Tracking**. Content restrictions apply. * The USPS does not guarantee delivery times for any service except Priority Mail Express. ** Prices listed are discounted rates available for online postage vendors such as Stamps.com. † First Class Mail has many size and weight restrictions.Large Parcel. Max. 1500mm (L) - total length, width and depth less than 3m. Find out how many stamps you'll need to post your birthday card through Royal Mail within the UK.For example, if you were to mail a large envelope that weighs three ounces, the final price would come down to $1.00 plus $0.30 to cover the charge for the additional 2 ounces of weight. ... How Many Stamps Do I Need For a Large Envelope. Large envelopes are also commonly referred to as flats with the USPS. An envelope is considered to be ...

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However, for large envelopes such as 9×12, legal, and manila envelopes, two stamps are required for the first ounce and an additional 0.20 cents for each additional ounce. International mail requires one Global Forever stamp or three Forever Stamps for a letter weighing one ounce or less.Large Flat Envelope. 12.00″ max. 15.00″ max. Up to 13.00 oz. $1.39. *Rates listed are discounted rates for online purchase available through Stamps.com. You can attach stamps to large envelopes being sent through First-Class Mail® as long as you’ve met USPS’s weight restrictions. It costs $1.39 to send the first ounce of a large envelope.These packs are 25, 100, 250, 500, and 1000. Manila envelope comes in small, medium, and large sizes. The larger sizes are 6×9, 9×12, and 10×13. The manila envelope of sizes 9×12 and 10×13 can store and mailed flat without making creases. While the 6×9 envelope requires a single fold to meet the standard document size that is (8 1/2 x 11 ...A standard 9×12 envelope weighing up to 1 ounce will require 3 Forever stamps or 4 First-Class stamps. How Many Stamps for a Large Manila Envelope? For a large Manila envelope, such as a 10×13 or 12×15 envelope, the number of stamps required will depend on the weight of the envelope. For example, a 10×13 envelope weighing up to 1 ounce will ...Put the stamp on the top right corner of the envelope. This will allow the postage scanning equipment to read the envelope and process it. [8] X Research source. Make sure the address of the sender and the address of the receiver are not covered or obscured by the stamp. 3. Place the letter in the mail.In 2024, a new Floral Geometry stamp, denominated at $1, will be available for purchase. The stamp will complement the similarly designed $2 and $5 stamps issued in 2022 and the $10 stamp issued in 2023. The stamps lend an elegant and contemporary appearance to packages, large envelopes and other mailings.

The answer to how many pieces of paper can be mailed per stamp depends on several factors, including the size and weight of the paper, the type of envelope or packaging used, and the destination of the mail. For a first-class letter weighing one ounce or less, one stamp is sufficient to mail up to five pieces of paper.Can I fold my return in a standard envelope? How many stamps do I need? Topics: TurboTax Free Edition Online; posted ‎June 4, 2019 6:01 PM. last updated ‎June 04, 2019 6:01 PM. 1 32 42,703 ... You can mail it in a standard white envelope with a stamp, however it is recommended to send it certified mail, so that you know when it is received.Easy-to-use Flat Rate paperboard envelopes feature a predetermined rate regardless of the weight or destination zone of the package. Size: 12 1/2" x 9 1/2" USPS SKU: EP_14-F Quantity/Pack: 10 Maximum Order: 60 packs of 10 Call 1-800-610-8734 for orders exceeding the maximum allowable order size Shipping Cost: This prod.Next, write the recipient's name and address in the center of the front of the envelope. Line 1: Recipient's full name ( and title, if appropriate) Line 2: Business name, building name (if a college dorm, for instance), apartment or suite number, if applicable. Line 3: Street address. Line 4: City State Zip Code.You will have to price your 6×9 envelope if it exceeds the maximum 3.5-ounce limit for First-Class letters mail. How many stamps are needed for a 9×12 Manila Envelope. This manila size envelope can be used for standard paper, measuring 8 1/2 by 11 inches. USPS classifies envelopes of this size as large envelopes/flats. Pricing depends on weight.The actual cost of mailing a 9×12 envelope will depend on several factors. One of these factors is its weight. Mail costs start at $1.00, but it increases by $0.21 for every additional ounce. The USPS considers the 9×12 envelope as a large envelope. As such, its mailing cost is higher than regular letter envelopes.Yes, the Post Office Will Still Deliver Your Mail-In Ballot Without a Stamp 2 minute read United States Postal Service (USPS) mailman Mike Micali makes deliveries in Flemington, New Jersey, U.S ...For a 9×12 envelope weighing 3 oz in the United States, you will need to use first-class mail postage stamps. The current rate is $1.30 for the first ounce and an additional $0.20 for each additional ounce, bringing the total cost to $1.70. How many stamps should I put on a 9×12 envelope that weighs 4 oz?Below are the rates for standard envelopes for normal envelopes like a letter or birthday card, no bigger than 11.5" x 6+⅛" (see envelope requirements). The postal service refers to large envelopes as 'flats.' — View rates for flats. 1 ounce ($1.55) One Global Forever stamp ($1.55)

The postage value of a Forever Stamp is the cur­rent First-Class Mail single-piece 1-ounce letter rate — $0.41. Customers must affix additional postage when mailing letters weighing in ex­cess of 1 ounce and/or letters subject to the nonmachinable sur­charge or mailpieces subject to another rate of post­age (e.g., large envelopes or ...

Envelopes: Rates for First Class Mail flats/large envelopes (1 ounce) are $1.16. Each additional ounce is $0.20. ... When you purchase First Class Mail stamps, you choose between Forever Stamps and regular stamps. USPS introduced Forever Stamps in 2007. They are non-denominational stamps that can be used on any First Class letter, regardless of ...Rates for flats (large envelopes) and all global first-class mail increased. Global forever stamps went from $1.15 to $1.20. Rates on additional ounces for flats (large envelopes) went up by $0.05 per additional ounce for domestic flats and changed for international flats as well.These rough guidelines below can help if you're estimating the weight of your item, but to know the accurate weight, we recommend taking your item to the Post Office. Letter or greeting card - 30g. Standard DL (110mm x 220mm) envelope with 4 sheets of A4 - 44g. CD in bubble envelope - 130g.How much does it cost to mail a large envelope? retail rate will increase 5 cents to $0.55 from $0.50 in 2018. Each additional ounce will cost an extra $0.15 (a 6 cent decrease from 2018). ... How many stamps do I need for a large envelope. For a 1 ounce legal-size envelope mailed within the US, we need 2 forever stamps where one is valued at ...First-Class Mail ® is an affordable mail service for standard-sized, single-piece envelopes weighing up to 3.5 oz and large envelopes weighing up to 13 oz. Prices start at $0.68 at a Post Office. Buy Stamps for First-Class Mail. Learn More about First-Class MailThe Retail Rate for Priority Mail Flat Rate—what you'll pay at the Post Office—can be up to 17% more expensive. Flat Rate Package Type. Commercial Pricing Rate. (What you'll pay with shipping software) Flat Rate Envelope. $8.05. Legal Flat Rate Envelope. $8.35. Padded Flat Rate Envelope.Address your 9-inch by 12-inch envelope by placing the mailing address in the center and the return address in the upper left corner on the same side as the mailing address. Bring the 9-inch by 12-inch envelope to the post office so it can be weighed on a postal weight scale to determine postage needed. Many post offices have self-serve areas ...When not sent using certified mail envelopes or labels, you can still create the envelope with Stamps.com, but you must manually fill out and attach the USPS Certified Mail form to the mailpiece. If you require a return receipt, you'll also need to hand directly to a postal employee. Both processes are explained in the sections below.

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Large Flat Envelope. 12.00″ max. 15.00″ max. Up to 13.00 oz. $1.39. *Rates listed are discounted rates for online purchase available through Stamps.com. You can attach stamps to large envelopes being sent through First-Class Mail® as long as you’ve met USPS’s weight restrictions. It costs $1.39 to send the first ounce of a large envelope.Postage for 9×12 Envelope. If your 9×12 envelope weighs up to one ounce, then you need to add two Forever Stamps. The two stamps cost around $1.10. Besides that, you will have to pay the additional postage for each additional ounce which is equivalent to $1.20. Moreover, Manila envelopes have the same postage requirements …Large Parcel. Max. 1500mm (L) - total length, width and depth less than 3m. Find out how many stamps you'll need to post your birthday card through Royal Mail within the UK.Large envelopes have large sizes compared to standard envelopes, so we need extra Stamps for their postage. For a Large Envelope with sizes up to 1 oz or ounce, you need two Forever Stamps. If the weight of Large envelopes exceeds 1 ounce, then you need one additional Stamps for each ounce. Note the maximum weight of a Large Envelope can be up ...Below are the rates for standard envelopes for normal envelopes like a letter or birthday card, no bigger than 11.5" x 6+⅛" (see envelope requirements). The postal service refers to large envelopes as 'flats.' — View rates for flats. 1 ounce ($1.55) One Global Forever stamp ($1.55)Migeru85. Level 2. Its for 2019, I just came back from a Mail store, the dude said itll take 5 stamps for the weight. I slapped on 6 for good measure. January 25, 2021 1:32 PM. 0. Reply. Bookmark Icon.By the way, every extra ounce would attract a $0.20 fee. So, if you were mailing a 6×9 envelope that weighs between 1.1 ounces to 2 ounces, the postal stamp required would cost $0.78. That is ($0.50 + $0.20 for the extra ounce). Furthermore, you have to pay $0.98 if your 6×9 envelope weighs 2.1 ounces to 3 ounces.If your envelope or package weighs more than 3 ounces you'll need to use additional stamps.If you're using Express Mail the cost to send a large envelope or package is $22.95 for the first 3 ounces and $1.Large Envelope Properties. Select the one that most represents your mail piece. None of the following. is Rigid - does not bend easily. is NOT Rectangular or Square. contains … ….

Estimating Postage by Weight. Once you figure out how much each sheet of paper weighs, you'll need to multiply by the number of sheets that you have to find the total weight. For instance, 10 sheets of paper that each weigh 0.16 ounces weighs a total of 1.6 ounces. Then, you can consult the U.S. Postal Service rate chart or search for another ...If an invitation is over either 6⅛″ in height, 11½″ in width, or ¼″ in thickness, it gets bumped into the large envelope category (which requires extra postage and different rules apply to large envelopes). The postage rate of large envelopes (also known as flat mail) starts at $1.00 in 2020 and goes up in 20 cents intervals based on ...The postage rate for First Class Mail depends on the weight and shape of the envelope. A standard letter-sized envelope weighing up to 1 ounce costs $0.58 in 2023, while a large envelope (also known as a flat) weighing up to 1 ounce costs $1.16. For each additional ounce, you need to add $0.20 for both letter-sized and large envelopes.Up to 13 ounces, refer to Retail First-Class Mail (133). More than 13 ounces but not more than 1 pound, postage is $4.45. More than 1 pound but not more than 2 pounds, postage is $5.15. The 1-pound rate is charged for matter sent in a Priority Mail flat-rate envelope provided by the USPS, regardless of the actual weight of the piece.For a mailpiece to be eligible for First-Class Mail letter rates, it must be at least 3-1/2 inches by 5 inches by .007-inch thick, and no more than 6-1/8 inches by 11-1/2 inches by 1/4-inch thick. If the mailpiece falls within these dimensions, it is classified as a letter. Follow these easy steps for letters: 1.Shop our selection of Cards & Envelopes on the USPS.com Postal Store. Go to USPS.com Site Index. ... Buy Stamps. Schedule a Pickup. ... Custom Mail, Cards, & Envelopes; Postage Prices ; Mail & Shipping Services; Priority Mail Express; Priority Mail; USPS Ground Advantage;See Forever postage stamp prices and other postage rates. ... Large Envelopes (flats) from $3.00 for all countries. First-Class Package International Service ... XLSX file for USPS Marketing Mail Commercial & Nonprofit Samples ...When placing an order, you need to use the appropriate size envelope, which means 3 ounces of Forever Stamps and an additional 2 ounces of an ounce stamp, for an approximate cost of 4 ounces. A 1-ounce envelope requires four stamps (2 stamps each for the envelopes and a fourth stamp for the letter). How many stamps to mail large envelope, Step 4/6: Add your photos to your envelope & weigh it. In the United States, the maximum weight for a first-class envelope is 3.5 ounces. The first stamp covers the first ounce. You can then buy "additional ounce" stamps for each ounce increment. A typical 4×6 print is 0.11 ounces. A standard A6 envelope is 0.18 ounces., Large Envelope Properties. Select the one that most represents your mail piece. None of the following. is Rigid - does not bend easily. is NOT Rectangular or Square. contains items that cause more than 1/4 inch variation in thickness., Easy-to-use Flat Rate paperboard envelopes feature a predetermined rate regardless of the weight or destination zone of the package. Size: 12 1/2" x 9 1/2" USPS SKU: EP_14-F Quantity/Pack: 10 Maximum Order: 60 packs of 10 Call 1-800-610-8734 for orders exceeding the maximum allowable order size Shipping Cost: This prod., Large Envelope. Max. 353mm (L) x 250mm (W)x 25mm (D) Weight. First Class. Second Class. 0 - 100g. 2 stamps. 2 stamps. 101 - 250g., Large Parcel. Max. 1500mm (L) - total length, width and depth less than 3m. Find out how many stamps you'll need to post your letter first class through Royal Mail within the UK., Large Parcel. Max. 1500mm (L) - total length, width and depth less than 3m. Find out how many stamps you'll need to post your a5 envelope second class through Royal Mail within the UK., The U.S. Postal Service offers an online calculator that allows you to determine exactly how much postage a given envelope needs. The size, shape and destination of the letter help..., Large Parcel. Max. 1500mm (L) - total length, width and depth less than 3m. Find out how many stamps you'll need to post your a5 envelope second class through Royal Mail within the UK., A5 Envelope; A5 Letter; Birthday Card; Book; Box; CD; Christmas Card; DVD; Gift; Greetings Card; Large Envelope; Large Letter; Large Parcel; Letter; Medium Parcel; Parcel; Passport; Present; Small Parcel; Articles About Stamps; Postage prices can change at any time, so we take no responsibility for outdated information. Please check the Royal ..., If you're sending printed photos, check out our guide on how many stamps are needed to mail 4x6 photos — no scale needed! 3. Address Your Envelope and Add Stamps. ... Below are the rates for sending a large envelope ("flat") to Guam . The maximum weight for a standard letter is 3.5 ounces, so use a flat if you're sending more …, The low-cost way to ship. eBay standard envelope services are competitively priced and include seller benefits like integrated tracking and shipment protections at no additional cost. Send 1 oz. packages for. $0.64. 2 oz. packages for. $0.88., Kilograms. Please select from the following options. View Dimensions. Letter. Large Envelope. Package. Large Package. Any dimension over 12 inches (30.48 cm) , Barn Swallow Forever #9 Window Stamped Security Envelopes (PSA) 3-7/8"(L) x 8-7/8"(W) $4.40, Fold this envelope in thirds, to make it nice and small. 3. Prepare Envelope #2. On the second envelope, print my address on the center: Meagan Spooner. PO Box 1903. Weaverville, NC 28787. Print your return address on the upper left hand corner of the envelope. Place adequate postage on the upper right hand corner of the envelope., Mail items should be in white, cream, pastel or light colour. Standard Regular Mail. Envelope Size (Length x Width): Standard Large Mail. Envelope Size: Up to C4 - 324mm (Length) x 229mm (Width) Standard Mail are mail items that are in standard envelope sizes: C4, C5, C6 and DL or specified Standard Mail sizes., How many of these places have you visited? TPG recently shared his personal favorite passport stamp, acquired in Easter Island. After oohing and ahh-ing over the design, it got us ..., First-Class Mail International Affordable International Mailing. First-Class Mail International ® (FCMI) service is the most affordable way to send letters and large envelopes to more than 180 countries, including Canada, Great Britain, and Australia.. Send 1 oz letters or postcards around the world with one Global Forever ® stamp, which currently costs $1.55 and never expires, even if the ..., Postage Stamp Calculator Calculate the minimum number of stamps required for any ... First Class large envelope (flats) - 1 oz: $1.39 First Class large envelope ... (Medium Flat rate box): $18.40 Priority Mail (Large flat rate box): $24.75 Media Mail (1 lb): $4.13 Media Mail (2 lbs): $4.87 USPS postage guide USPS's postage calculator: You need ..., The postage for the 2-ounce letter is now 78 cents ($0.78). While the forever stamp costs $0.58. Please Note: The letter rates depend upon the size of the envelope as well, these rates are for business envelopes that are mainly 6-1/8″ in height and 11.5″ in length. Standard envelopes ( manila envelopes) are placed in the category of large ..., , A 9×12 envelope can have a maximum weight of up to 13. So for that envelope with 2 Forever Stamps, $0.24 per ounce for additional Stamps the total cost will be $3.40. For a 2 oz 9×12 envelope we need two Forever Stamps and 1 additional stamp so the total cost will be $0.63+$0.63+$0.24= $1.50., Migeru85. Level 2. Its for 2019, I just came back from a Mail store, the dude said itll take 5 stamps for the weight. I slapped on 6 for good measure. January 25, 2021 1:32 PM. 0. Reply. Bookmark Icon., Step 2: Check Size and Weight Restrictions. At up to 11½ inches by 6⅛ inches, USPS international letter envelopes can be large compared to what you're used to. Their max weight limit is 3.5 ounces, and the envelope can't be thicker than one-quarter inch. Postcards can be between 5½ inches by 3½ inches and 6 inches by 4¼ inches., Postcard. $0.35. First Class Mail Flat (1 oz.) $1.00. Considering this, how many stamps do I need for a 3 oz manila envelope? Manila Envelope Postage 2 or 3-ounce Envelope require 2 stamps, and a 3rd stamp is necessary for 3.5 ounce Envelope, the maximum weight allowed before moving back into the flats category., We explain how many stamps you need to send a letter, package, or other type of mail. Find pricing and more inside. The cost of mailing depends on the size, weight, and sometimes t..., ShipStation offers affordable USPS postage thanks to our close relationship with USPS postage provider Stamps.com. These rates do not require you to ship a certain volume of shipments. ... USPS First Class Mail also supports letters, envelopes, thick envelops, flat rate envelopes, and postcards. ... USPS First Class Large Envelopes and Flats ..., When a piece of First-Class Mail exceeds any one of the maximum measurements of a large envelope, it is classified and priced as a package. When a First-Class Mail large envelope or flat-size piece is a box or has contents that make it rigid, it is classified and priced as a package. See DMM 101.1.2 for further information., There are two different sizes of letter which are called "letter" and "large letter". Letters have a max width of 16.5 centimetres, a max length of 24cm and a max depth of 0.5cm; Large letters have a max width of 25cm, a max length of 35.3cm and a max depth of 2.5cm. Weight also becomes more important with large letters, Dec 5, 2023 · The Size of the Envelope. Since manila envelopes are larger than standard envelopes, mailing one requires more than one stamp. A letter is a minimum of three and a half inches by five inches and a maximum six and one eighth inches by 11.5 inches. It’s not more than a quarter of an inch thick, with a maximum weight of three and a half ounces. , This means that as long as your tax return and any additional documents fit within the weight and size restrictions specified by the postal service for letter-sized mail, you can use standard postage rates. 2. Number of Pages: The number of pages in your tax return can also affect the amount of postage required., Any additional pages requires changing to Large Envelope ( Small ) price costs, Up to $100 insurance included 3; you can buy additional insurance coverage up to $5,000. Priority Mail®. You're sending important items that need to arrive in 1-3 business days. 4. Flat Rate Envelope: From $9.85. USPS Mailing Box (Flat Rate): From $10.40. Your Own Box By Weight/Zone: From $9.25. 1-3 business days 4., The United States Postal Service (USPS) categorizes a 9-inch by 12-inch envelope as a large envelope. Two First Class stamps will cover the cost of a 9×12 envelope that weighs an o...