Best Generic Envelopes in 2026

Perfectly fits QuickBooks Checks, or other computer printed checks: checks will slide in easier with a slightly wider design than a standard 8 5/8 envelope

Checks amounts and memos will not be visible: Only addresses will show through our unique double window design with no need to change QuickBooks settings

Provides complete check security: your checks will be hidden with our security tint design

Perfectly fits QuickBooks Laser Checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard two window 8 5/8 envelope

Checks amounts and memos will not be visible: Only addresses will show through our unique 2 window design with no need to change QuickBooks, QB Online, or Quicken settings

Provides complete check security: your checks will be hidden with our security tint design

Perfect size for standard 8.5'' x 11'' letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely

Just Peel and Seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty shipments like 60 sheets of paper or magazines

Provides complete security: your documents are safe from others during transit. Safe for sensitive documents like tax, legal, and financial documents

Perfect for secure everyday home and business mailing. Our Security #10 Windowless Envelopes perfectly fit standard 8.5’’ x 11’’ paper sizes and other large documents. Easily fits invoices, letters, checks, and more.

Provides complete mail security. No need to worry about others seeing your documents, our dark black security tint completely hides you mail.

Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.

Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, and other business mail.

Create professional looking mail with the added security of a single window envelope. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels

Just peel and seal for a strong lasting seal. Our security envelopes will quickly and easily create a strong seal for completely secure business mail.

Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, and other business mail.

No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents.

Your contents will stay sealed during transit with your strong gummed adhesive and unique 1’’ tapered gummed flap design.

Perfect size for standard 8.5’’ x 11’’ letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely

Just Peel and Seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty shipments like 60 sheets of paper or magazines

Provides complete security: your documents are safe from others during transit. Safe for sensitive documents like tax, legal, and financial documents

Perfect size for safely mailing small items like folded letters, letter envelopes, dvds, and ecommerce items.

Just Peel and Seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty items. No tape is required

Provides complete security: your documents are safe from others during transit. Thick opaque paper prevents others from seeing your contents

Perfectly fits QuickBooks Invoices and business statements: sender and return address will be visible on your QuickBooks invoices and monthly bills through our unique double window design.

Quickly and easily stuff our wide envelopes with several invoices or business statements

Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design

Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, and other business mail.

No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents.

Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design

Perfect for keeping coins, keys, or other small items safe and secure when delivering or sending to another person.

Durable, thick 28 lb kraft paper with no windows means your items will stay inside, while also not revealing the inner contents.

Extra wide gummed seal, means your items won’t fall out, and the flap will stay closed longer, versus smaller gummed seals.

Perfectly fits your computer printed 1099 MISC forms from QuickBooks or similar accounting software. Your 1099 COPY B and COPY C forms will slide in with ease. NOT FOR QUICKBOOKS ONLINE.

Recipient and return address will show perfectly in our unique double window design. No need to worry about your personal tax identical number or other personal information showing through the envelope windows

Provides complete tax form security: your 1099-MISC forms will be hidden with our black security tint design

Perfectly fits your computer printed 1099 MISC forms from QuickBooks or similar accounting software. Your 1099 COPY B and COPY C forms will slide in with ease. NOT FOR QUICKBOOKS ONLINE.

Recipient and return address will show perfectly in our unique double window design. No need to worry about your personal tax identical number or other personal information showing through the envelope windows

Provides complete tax form security: your 1099-MISC forms will be hidden with our black security tint design

Perfect for mailing Invoices, QuickBooks Invoices, billing statements, checks, and other business mail. Your return and sender address will line up perfectly

Just moisten or lick and seal for a strong lasting seal. Our Cost Effective gummed seal design will quickly and easily create a strong seal for completely secure business mail.

No need to spend time and money stamping, adding return labels, or spending extra money on custom envelopes, just quickly slide in your business mail to create professional looking business mail

Perfect for mailing Invoices, QuickBooks Invoices, billing statements, checks, and other business mail. Your return and sender address will line up perfectly

Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks.

No need to spend time and money stamping, adding return labels, or spending extra money on custom envelopes, just quickly slide in your business mail to create professional looking business mail

Easily send or store receipts, letters, documents, magazines and more with our durable 10” x 13” clasp envelopes made from 28lb kraft paper

10” x 13” size means oversized papers, magazines, or other items that are larger than letter size can fit inside without being folded.

With a metal clasp and gummed seal on the envelope flap, your contents will stay secure whether you’re mailing them, or keeping them safe in a file.

Our number 10 security envelope is perfect for mailing invoices, billing statements, and other business mail where the address is formatted on the right

Just fold down flap and press to create a strong lasting seal. With no more headaches or bad tastes in your mouth from licking envelopes, our self sealing design is quick, easy, and guaranteed to stay sealed

Provides complete business mail security; your professional business mail will be completely hidden with our dark security tint design

6x9 booklet envelopes, latex self seal, are the perfect size for holding half size sheets paper at 5.5” x 8.5”, or a standard 8.5'' x 11'' letter paper folded in half, with a wide opening that saves times when stuffing booklets, catalogs, cards, or brochures inside

Our booklet envelope 6x9 design opens along the long side edge, making them easy to stuff through the open side. Just press and seal to create a strong lasting seal, with no need to worry about your contents failing out during transit even when shipping hefty shipments like half size catalogs or magazines

The dark black security tint lining and permanent seal in our envelopes (6x9 inches) provide complete security your documents are safe from others during transit, making each envelope safe for sensitive documents like tax, legal, and financial documents

Perfectly fits QuickBooks Checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard 2 window 8 5/8 envelope

Checks amounts and memos will not be visible: Only addresses will show through our unique double window design with no need to change QuickBooks, QB Online, or Quicken settings (WILL NOT FIT STATEMENTS)

Provides complete check security: your laser checks will be hidden with our security tint design

Perfect for mailing Invoices, QuickBooks Invoices, billing statements, checks, and other business mail. Your return and sender address will line up perfectly

Just peel and seal for a strong lasting seal. Our security envelopes will quickly and easily create a strong seal for completely secure business mail.

No need to spend time and money stamping, adding return labels, or spending extra money on custom envelopes, just quickly slide in your business mail to create professional looking business mail

Perfectly fits your computer printed W2 forms from QuickBooks or similar accounting software. Your W2 two part forms will slide in with ease and not move around during transit. NOT FOR 4 PART FORMS

Recipient and return address will show perfectly in our unique double window design. No need to worry about the social security number or other personal information showing through the envelope windows (DOES NOT WORK FOR 1099s)

Provides complete tax form security: your W2 tax return forms will be hidden with our black security tint design

Easily send or store receipts, letters, documents, magazines and more with our durable 9” x 12” clasp envelopes made from 28lb kraft paper

9” x 12” size is perfect for letter size documents, papers, magazines, or other items that can fit inside without needing to be folded.

With a metal clasp and gummed seal on the envelope flap, your contents will stay secure whether you’re mailing them, or keeping them safe in a file.

Perfectly fits your computer printed 1099 MISC forms from QuickBooks or similar accounting software. Your 1099 COPY B and COPY C forms will slide in with ease. NOT FOR QUICKBOOKS ONLINE.

Recipient and return address will show perfectly in our unique double window design. No need to worry about your personal tax identical number or other personal information showing through the envelope windows

Provides complete tax form security: your 1099-MISC forms will be hidden with our black security tint design

Perfect size for holding half size sheets paper at 5.5” x 8.5”, or a standard 8.5'' x 11'' letter paper folded in half, with a wide opening that saves times when stuffing booklets, catalogs, cards, or brochures inside

Just peel and seal to create a strong lasting seal, with no need to worry about your contents failing out during transit even when shipping hefty shipments like half size catalogs or magazines

The dark black security tint lining and permanent seal provide complete security your documents are safe from others during transit, making these envelopes safe for sensitive documents like tax, legal, and financial documents