Bulk Mail Postage Rates [2026]: USPS Marketing Mail Pricing

USPS Marketing Mail (the official name for what most people call "bulk mail") offers significantly lower postage rates than First-Class Mail. The tradeoff: you need at least 200 pieces per mailing, your mail must be presorted by ZIP code, and delivery takes 3–10 business days instead of 1–3.

For businesses sending direct mail campaigns, postcards, catalogs, or promotional materials, Marketing Mail is almost always the right choice. This guide covers every rate tier so you can calculate your actual cost per piece and per campaign.

Marketing Mail Letter Rates (Up to 3.5 oz)#

Letter-sized mail pieces (up to 11.5" x 6.125" x 0.25") get the lowest Marketing Mail rates. The rate you pay depends on two factors: whether your mail meets automation requirements, and how deeply it's presorted.

Automation Letter Rates#

Automation rates are the standard for most business mailers. Your pieces must be formatted for machine processing with Intelligent Mail barcodes and meet USPS letter machinability standards.

The principle is straightforward: the more work you do sorting mail before giving it to USPS, the less you pay. "5-Digit" means you've grouped mail by full 5-digit ZIP code — the deepest level of presort and the cheapest rate. "Mixed AADC" is the shallowest level, where pieces are grouped into mixed bundles that span multiple Area Distribution Centers.

Carrier Route Letter Rates#

Carrier route rates are even cheaper than automation rates because you're presorting mail to specific postal carrier routes — the actual path a mail carrier walks or drives. The more addresses you cover on a single route, the deeper the discount.

Saturation mailings — where you mail to 90% or more of addresses on a postal route — offer the lowest addressed-mail rate available at $0.244/piece. This is popular for local businesses targeting everyone in a neighborhood.

Note: The Basic Carrier Route letter rate was eliminated effective July 13, 2025.

Nonautomation Letter Rates#

If your mail pieces don't meet automation formatting requirements (no Intelligent Mail barcode, non-standard formatting), you'll pay nonautomation rates:

Nonautomation rates are higher because USPS must process these pieces with more manual handling. For most mailers, meeting automation requirements is worth the effort for the lower rates.

Marketing Mail Flat Rates (Up to 4 oz)#

Flats (large envelopes exceeding letter dimensions, up to 15" x 12" x 0.75") cost significantly more than letters. If your mail piece can be redesigned to fit within letter dimensions, you'll save substantially on postage.

Automation Flat Rates#

Carrier Route Flat Rates#

Nonautomation Flat Rates#

EDDM Rates: The Simplest Bulk Mail Option#

Every Door Direct Mail (EDDM) is the simplest way to send bulk mail. You don't need a mailing list — you select postal routes on the USPS website, and every residential or business address on those routes receives your mail piece. EDDM pieces must be flat-sized (exceeding at least one letter dimension).

EDDM is particularly popular with local businesses — restaurants, home service companies, dentists, and retailers — because it lets you reach every household in a radius around your business without building or buying a mailing list.

Nonprofit Marketing Mail Rates#

Eligible nonprofit organizations can access Marketing Mail at substantially reduced rates — roughly 40–50% below commercial pricing. Qualification requires USPS authorization through Form 3624.

Nonprofit Automation Letter Rates#

Nonprofit Carrier Route Letter Rates#

Eligible organizations include religious, educational, scientific, philanthropic, agricultural, labor, veterans, and fraternal organizations. Political campaigns and for-profit businesses do not qualify. Apply with USPS Form 3624 at your local Post Office.

First-Class Mail vs Marketing Mail: When to Use Each#

Not all mail should go Marketing Mail. Here's how the two classes compare for letters:

For a detailed comparison of direct mail vs email marketing (including when each channel wins), see our direct mail vs email comparison.

First-Class Mail Retail Letter Rates (Stamped)#

First-Class Commercial (Presorted) Rates#

Businesses sending 500+ First-Class pieces can presort for discounted rates:

When to Choose Each Mail Class#

Use First-Class Mail when:

• Time-sensitive delivery is important (1–3 business days)
• You need return service (undeliverable mail returned to sender at no extra charge)
• You're sending invoices, statements, legal notices, or personal correspondence
• Sending fewer than 200 pieces

Use Marketing Mail when:

• You're sending promotional or advertising materials
• You have 200+ pieces per mailing
• Delivery within 3–10 business days is acceptable
• Cost per piece is a priority over delivery speed

How to Calculate Your Total Mailing Cost#

Your total cost per mailing depends on more than just the per-piece postage rate. Here's the complete formula:

Total Cost = (Number of Pieces x Per-Piece Rate) + Printing Costs + Annual Permit Fees (amortized)

Here's a real-world example comparing Marketing Mail to First-Class for a 5,000-piece letter campaign:

First-Class (stamped):

• 5,000 pieces x $0.78 = $3,900 in postage

Marketing Mail (automation 5-digit):

• 5,000 pieces x $0.372 = $1,860 in postage

EDDM Retail:

• 5,000 pieces x $0.247 = $1,235 in postage

Switching from First-Class stamps to Marketing Mail automation saves $2,040 on postage alone. EDDM saves $2,665. Over 12 monthly mailings, that's $24,480 to $31,980 in annual postage savings.

Understanding Presort Levels#

The presort level you achieve depends on your mailing list — specifically, how concentrated your addresses are by ZIP code. Here's what each level means and when you can realistically achieve it:

• 5-Digit ($0.372/letter): You need at least 150 pieces going to the same 5-digit ZIP code. Achievable with a local or regional mailing list. This is the sweet spot for most small business direct mail campaigns targeting a city or metro area.
• AADC ($0.407/letter): Pieces grouped by Automated Area Distribution Center — a wider geographic grouping. This is common for regional or multi-state mailings where you don't have enough pieces per individual ZIP.
• Mixed AADC ($0.433/letter): The fallback tier for pieces that don't fit into a single AADC grouping. Typical for nationwide mailings with broadly distributed addresses.
• Carrier Route Saturation ($0.244/letter): You're mailing to 90%+ of addresses on a specific postal carrier route. Essentially blanket coverage of a neighborhood. Requires a comprehensive address list or saturation mailing approach.

A practical tip: most presort software automatically optimizes your mailing into the deepest possible presort levels based on your address list. You don't need to manually sort — the software handles it and gives you a mixed mailing where some pieces qualify for 5-digit, some for AADC, and some for Mixed AADC. Your total postage is the weighted average across all tiers.

Rate Change History and What's Coming Next#

USPS typically adjusts rates twice a year: January and July. Here's the recent history:

What to Expect in July 2026#

The next Marketing Mail and First-Class rate change is expected around July 12, 2026. Based on USPS rate authority under the Postmaster General's pricing framework, industry analysts expect:

• Approximately 5% rate authority for letters (based on CPI + density + non-compensatory surcharge)
• Approximately 7%+ rate authority for flats and magazines
• The rate filing is expected mid-April 2026, with specific amounts published then

We'll update this guide when the July 2026 rates are finalized.

How to Reduce Your Bulk Mail Costs Further#

Beyond choosing the right mail class and achieving the deepest presort level, there are additional ways to lower your per-piece cost:

1. USPS Promotion Discounts: Save 5–12.5% on postage through USPS annual promotion programs. Adding a QR code to your mail piece (Integrated Technology promotion) earns a 5% discount with minimal effort. Stack the Informed Delivery add-on (+1.5%) and Sustainability add-on (+1%) for up to 7.5% savings on a single mailing.
2. Address hygiene: Clean your mailing list with NCOA (National Change of Address) processing and CASS certification. Fewer undeliverable pieces means less wasted postage, and cleaner addresses often qualify for deeper presort levels.
3. Design for letters, not flats: A Marketing Mail letter at $0.372 costs less than half a flat at $0.770 (automation 5-digit). If your content can fit in a #10 envelope or a 6" x 9" bifold, you'll save substantially.
4. Consider postcards: For EDDM campaigns, postcards and letters have the same flat postage rate ($0.247 retail), but postcards often have lower print costs because they skip the envelope and insertion steps.
5. Co-mail or commingling: For larger mailers, combining your mail with other mailers' pieces (commingling) can achieve deeper presort levels than your list alone would qualify for.

Getting Started with Bulk Mail#

If you've been sending mail with stamps and are ready to move to bulk rates, here's the typical path:

1. Start with EDDM Retail if you want to test bulk mail without any upfront fees or permits. Select routes on the USPS EDDM website, print your pieces, and drop them off at the Post Office.
2. Move to Marketing Mail when you have a targeted mailing list and want to send addressed mail to specific recipients. You'll need a USPS permit and presort software (or a mail service provider who handles this for you).
3. Optimize over time by cleaning your address list for deeper presort levels, qualifying for USPS promotions, and testing different mail formats to find the best cost-to-response ratio for your business.