What is USPS Presort Mailing? Categories, Discount Tiers & Rates

Presort mail is a valuable tool for reducing mailing costs for bulk shipments. This service will sort and bundle mails based on zip codes, size, and service types. Learn how presort mailing works, how presort first class differs from standard mail, and how you can get discounted rates.

Tommaso

3 Min Read

April 9, 2026

What is USPS Presort Mailing?

USPS Presort is a bulk mail program where businesses sort their own mail by ZIP code before delivery to USPS earning discounted postage rates in return.

It is designed for businesses sending at least 200 pieces (Marketing Mail) or 500 pieces (First-Class Mail). By organizing shipments before drop-off, businesses reduce USPS's processing workload and qualify for lower per-piece rates.

For example, a business sending 1,000 promotional mailers groups them by destination ZIP code. USPS skips the initial sorting step, speeding up delivery and cutting postage costs by up to 43% versus retail rates.

What Does Presorted Mail Mean?

Presorted mail is divided into Standard Mail (also known as Marketing Mail) and First Class Mail

Feature	Usps Marketing Mail (Presort)	First-Class Mail (Presort)
Primary Use	Advertising, promotions, catalogs	Bills, statements, important communications
Delivery Speed	Slower: ~2–10+ days	Faster: ~1–5 days
Cost Level	Cheapest USPS bulk option	Higher than Marketing Mail
Minimum Volume	200 pieces or 50 lbs	500 pieces
Weight Limit	Letters: up to ~3.5 oz Flats: up to 16 oz	Letters/flats: up to 3.5 oz
Content Restrictions	Printed matter, flyers, circulars, advertising Newsletters, bulletins, catalogs Small parcels	Personal & transactional allowed
Weight Pricing Model	• Per piece (letters) • Per piece + per pound (flats/parcels) • Tiered weight bands	• Base price (first oz) • + additional ounce charges
Sensitivity To Weight	Moderate (less linear, sometimes blended)	High (each ounce increases cost)
Sorting Requirement	Required (ZIP-based: AADC, 3-digit, 5-digit, carrier route)	Required (similar presort levels)
Forwarding & Returns	Limited (usually not forwarded; fees may apply)	Included (forwarding & return services standard)
Best For	Cost efficiency at scale	Speed + reliability for important mail
Tracking/Service Level	Limited visibility	Higher service reliability

How USPS Presort Differs from Regular Mail

Presort mail beats regular mail on cost, processing speed, and per-piece rates at the cost of a minimum volume requirement. By sorting mail in advance, businesses reduce USPS handling work and qualify for discounted postage rates.

Feature	Regular Mail	Presort Mail
Who Sorts	USPS	Business (before drop-off)
Rate Type	Retail per-piece	Discounted bulk rate
Minimum Volume	None	200–500 pieces
Processing Speed	Standard	Faster (pre-organized)

When to use each:

Marketing Mail Presort — Non-urgent bulk materials: flyers, catalogs, newsletters
First-Class Presort — Time-sensitive mail that requires forwarding and return services

When to Use Each Service

Marketing Mail: Best for non-urgent, bulk promotional materials
First-Class Presort: Best for time-sensitive, personalized mail with tracking and forwarding

How Does USPS Presort Work?

To qualify for USPS presort discounts, businesses must follow a structured mailing process:

Sort Mail by ZIP Code – Group mail according to destination ZIP Codes.
Bundle Similar Mail Together – Create bundles based on 5-digit, 3-digit, or mixed ZIP groupings.
Apply Barcodes & Labels – Each piece must have a USPS Intelligent Mail Barcode (IMb) for automated sorting.
Provide USPS Documentation – Submit a postage statement detailing quantity, weight, and mail type.
Drop Off at USPS Bulk Mail Entry Unit (BMEU) – Since the mail is pre-sorted, USPS processes it faster than standard mail.

This sorting effort reduces work for USPS, allowing them to offer discounted postage rates.

USPS Presort Discount Tiers

The more precisely you sort, the more you save. USPS offers 3 discount levels based on sorting depth.

Presort Level	Discount Level	Sorting Requirement
5-Digit Presort	Highest Discount	Mail is sorted down to the recipient’s full 5-digit ZIP Code.
3-Digit Presort	Moderate Discount	Mail is sorted into regional ZIP groups (first 3 digits match).
Mixed Aadc Presort	Smaller Discount	Mail is minimally sorted, USPS does most of the processing.

The more sorting a business does upfront, the lower the postage costs. There are two key ways USPS presort mail can provide cost-saving benefits for businesses: by reducing USPS operational costs, which leads to discounted postage rates, and by comparing in-house presorting with 3rd party presorting to understand the advantages of each approach.

Should You Use In-House or Third-Party Presorting?

Businesses can either handle presorting manually or outsource it to a third-party service. Choosing a reliable mailing service provider is crucial to ensure data security and compliance with USPS regulations.

Comparison: In-House vs. Third-Party Presorting

Option	Pros	Cons
In-House Presorting	Full control, cost-effective for large businesses	Time-consuming, complex
Third-Party Presorting	Hassle-free access to discounts even for smaller mail volumes	Less control

USPS Presort Rate Comparison

Below is a side-by-side cost comparison between normal rates and presorted rates:

Presorted First-Class Mail Rates

Ounces	Normal Rate	Presort Rate	Savings
1	$0.44	$0.36	$0.08
2	$0.61	$0.48	$0.13

Presorted Standard Mail Rates

Ounces	Normal Rate	Presort Rate	Savings
1	$0.44	$0.25	$0.19
2	$0.61	$0.25	$0.36
3	$0.78	$0.25	$0.53

Save Money with USPS Presort Mailing!

Presort mail is an effective tool for reducing mailing costs for bulk shipments. By grouping mail according to delivery zones, USPS does less work and passes the savings on to you.

Why Choose Easyship?

✔ Up to 89% off USPS shipping rates
✔ Seamless integration with 60+ eCommerce platforms
✔ Multi-carrier shipping options in one smart dashboard

✔ We support USPS NSA

Sign up for Easyship today to take advantage of presorted mail savings and optimize your shipping strategy!

FAQs

What is USPS presort?

It is the mailing category where packages are presorted based on their zip codes (3-digit and 5-digit), size, and destination by businesses before being sent to USPS.

Is presorted mail junk mail?

No, the presorted mail is not junk mail. It is sent in bulk, but that is the nature of the business and not necessarily spam mail.

What's the difference between a 5-digit presort and a basic presort?

A 5-digit presort is more precise since these mails are categorized based on the complete zip code, leading to the exact location. A basic presort is categorized into the city or state - a larger geographic area. 5-digital presort is more economical than basic.

What is USPS Presort Mailing? Categories, Discount Tiers & Rates

What is USPS Presort Mailing?

What Does Presorted Mail Mean?

How USPS Presort Differs from Regular Mail

When to Use Each Service

How Does USPS Presort Work?

USPS Presort Discount Tiers

Should You Use In-House or Third-Party Presorting?

Comparison: In-House vs. Third-Party Presorting

USPS Presort Rate Comparison

Presorted First-Class Mail Rates

Presorted Standard Mail Rates

Save Money with USPS Presort Mailing!

Why Choose Easyship?

FAQs

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What is USPS Presort Mailing? Categories, Discount Tiers & Rates

What is USPS Presort Mailing?

What Does Presorted Mail Mean?

How USPS Presort Differs from Regular Mail

When to Use Each Service

How Does USPS Presort Work?

USPS Presort Discount Tiers

Should You Use In-House or Third-Party Presorting?

Comparison: In-House vs. Third-Party Presorting

USPS Presort Rate Comparison

Presorted First-Class Mail Rates

Presorted Standard Mail Rates

Save Money with USPS Presort Mailing!

Why Choose Easyship?

FAQs

Related Articles

Related Articles

eCommerce Inventory Management: Challenges, Strategies and Tools to Grow Your Store

TikTok Fulfillment: FBT Options, Fees, SLA Requirements & Best Practices for TikTok Shop Sellers

Retail Logistics: How It Works, Key Functions and Strategies to Cut Shipping Costs

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