Published March 10, 2026

5 Ways to Reduce Your Direct Mail Postage Costs

Postage is typically the single largest expense in a direct mail campaign — often 40% to 60% of the total cost. The good news is that the USPS offers significant discounts to mailers who prepare their mail correctly. Here are five strategies we use every day to save our clients money.

1. Presort Your Mail

The USPS offers discounted postage rates to mailers who sort their mail by ZIP code and carrier route before dropping it at the post office. This saves the Postal Service processing time, and they pass the savings on to you.

Presort discounts are tiered based on how finely you sort:

• 5-digit presort: All pieces going to the same 5-digit ZIP are grouped together
• 3-digit presort: Grouped by the first 3 digits of the ZIP
• AADC (Automated Area Distribution Center): Grouped by regional distribution center
• Mixed AADC: Everything else that does not qualify for a finer sort

The deeper the sort, the bigger the discount. On a Marketing Mail letter, the difference between single-piece postage and the best presort rate can be $0.25 or more per piece. On a 10,000-piece mailing, that is $2,500 in savings.

This is something your mail house handles for you — at Texas Mail Center, every job we process is automatically presorted for the deepest available discount. See our full direct mail services.

2. Clean Your Mailing List

Mailing to bad addresses wastes postage and printing costs on pieces that will never arrive. Before every mailing, your list should be run through:

• NCOA (National Change of Address): Updates addresses for people who have moved within the last 48 months. The USPS requires this for presort mailings.
• CASS (Coding Accuracy Support System): Verifies and standardizes addresses to USPS format, adds delivery point codes, and corrects ZIP+4 codes.
• Deduplication: Removes duplicate names so you do not mail the same person twice.

A clean list typically reduces undeliverable mail by 5% to 15%. If you are mailing 10,000 pieces at $0.50 each, eliminating 10% of bad addresses saves $500 in wasted postage and print costs — and it improves your response rate because you are only counting the pieces that actually arrived.

3. Design to the Right Mail Class and Size

The USPS charges different rates depending on the size, weight, and shape of your mail piece. Small differences in dimensions can mean large differences in postage.

Key considerations:

• Letters vs. flats: A standard letter (up to 6.125" x 11.5", up to 3.5 oz) qualifies for letter rates. Anything bigger is a flat — and flats cost significantly more. A 6" x 9" postcard fits within letter dimensions, but bump that to 6.5" x 9" and it exceeds the 6.125" height limit — making it a flat. That half-inch change alone can add $0.15+ per piece.
• Weight matters: Heavier pieces cost more. Use lighter paper stock when possible without sacrificing quality. A 100# gloss cover postcard is sturdy enough for most mailings and keeps the weight down.
• Automation compatibility: Pieces that can be processed by USPS sorting machines (automation-compatible) get the best rates. This means specific size ranges, thickness requirements, and barcode placement. We design every piece to be automation-compatible.

4. Consider EDDM for Geographically Targeted Campaigns

If you want to reach every address in a specific area, Every Door Direct Mail (EDDM) is one of the cheapest ways to mail. EDDM rates are currently around $0.21 per piece for flats — significantly less than standard Marketing Mail rates.

EDDM eliminates list costs entirely (you select carrier routes, not individual addresses) and does not require a mailing permit. The tradeoff is that you cannot target by demographics — everyone on the route gets a piece. For local businesses, restaurants, real estate agents, and political campaigns, EDDM is often the most cost-effective option.

5. Co-Mail or Commingle with Other Mailers

Co-mailing (also called commingling) combines your mail with other mailers' pieces before it enters the USPS system. By pooling volume, smaller mailings can qualify for the deeper presort discounts that would normally require much larger quantities.

This is especially valuable for mailings in the 1,000 to 5,000 piece range where your list alone may not have enough density in each ZIP code to qualify for 5-digit or carrier route rates. When your pieces are combined with other mailers heading to the same areas, the combined volume qualifies for better discounts.

We automatically evaluate whether co-mailing will save you money on every job. If it does, we route your mail through our commingling process at no additional charge.

How Much Can You Save?

The total savings depend on your list, piece size, and mail class, but here is a real-world example:

Those savings came entirely from proper preparation — the same piece, the same list, the same delivery. The only difference was how the mail was processed before it entered the postal system.

We Handle All of This for You

At Texas Mail Center, postal optimization is built into every job. We do not charge extra for presorting, NCOA processing, or CASS certification — it is part of our standard mailing workflow. Our goal is to get you the lowest possible postage rate on every mailing, every time.