Direct Mail Marketing for Small Business: 7 Steps and Costs

Direct mail for a small business is a paid test. You send printed pieces, usually large postcards, to every address on carrier routes you pick through USPS Every Door Direct Mail (EDDM) or to a list you own or rent, and count replies through a code printed on the piece. Work out the break-even rate first, mail a small batch, and scale only if the measured rate clears it.

The short version

Pick a route: every door on chosen mail routes, or a list of named addresses.
You pay for design, printing, postage and, on the list route, the list itself.
Break-even rate = total cost ÷ profit per customer ÷ pieces sent.
Put a tracking code on every piece, or you cannot count the result.

Why direct mail still works for a small business

Mail reaches people by address. A cleaner or a dentist sells within a few miles, which matches how mail is delivered. With EDDM Retail you reach every household on a carrier route with no address list and no special mailing permit: pieces are addressed to “Postal Customer,” and you pay postage online or at the Post Office¹.

You can count what a mailing produces. A code, a phone number used nowhere else, or a short web address ties each reply to one mailing. USPS also lets mailers add a ride-along image and a clickable link to the grayscale preview that Informed Delivery users see of their incoming mail². That gives you a second, countable response path.

Published benchmarks count different things. Response rate counts anyone who takes an action, from a call to a QR scan; conversion rate counts how many of those become customers³. An email click-through rate is clicks divided by impressions³, so it cannot be set beside a mail response rate.

Mail is a poor fit in three cases:

Your buyers are not local, and you have no list that reaches them by address.
Customers buy once and the first order earns little, so the break-even rate lands above what a small test can reach.
You have no evidence yet that anyone wants the offer. In that case, test demand before you print.

Two ways to reach people: EDDM or a mailing list

Define who you are mailing first; for a narrow household type or businesses, sketch an ideal customer profile. A whole neighborhood points to EDDM; named people point to a list.

Route	Needs a list	What you pay
EDDM Retail	No¹	Print, plus $0.260 postage per piece⁴
Your own list	Your customers’ addresses	Print, Marketing Mail postage⁵, a permit⁶
A rented list	Names from a list seller	The same, plus the list fee

EDDM Retail rules

Quantity: at least 200 pieces, and no more than 5,000 per ZIP Code per day under USPS EDDM rules. Larger volumes go through EDDM BMEU, the Business Mail Entry Unit option⁷.
Size: the piece must be a flat. It weighs no more than 3.3 ounces and is longer than 10-1/2 inches, or taller than 6-1/8 inches, or thicker than 1/4 inch⁸. A 4 by 6 inch postcard does not qualify.
Postage: $0.260 per piece under USPS Price List Notice 123, up from $0.247⁴. The notice took effect on July 12, 2026⁵.

List mailing rules

USPS Marketing Mail needs at least 200 pieces or 50 pounds and a Business Mail Permit⁶. Start with your own customers and check addresses before you print. Price a rented list as its own line.

What a mailing costs

Cost line	What drives it	Where the number comes from
Design	Your time or a designer’s fee	Your quote
Print	Size, paper, quantity	Printer quote
Postage	Route and mail class	USPS notice⁴⁵
List	Rented names	List seller quote
Tracking	Phone number, landing page	Your own accounts
Mail house setup	Addressing, presort	Mail house quote

Postage is the only line with a public price; get quotes for the rest. Add the per-piece costs, multiply by the pieces, then add the one-off costs.

USPS’s 2026 Mail Growth Incentive credits qualifying volume above a 2025 baseline⁹. Registration ran from March to May 2026⁹, so if you did not register, you cannot claim it this year.

The break-even math

Cost per piece = print + postage + list cost per piece (zero with EDDM)
Total cost C = pieces N × cost per piece + one-off costs (design, setup)
Gross profit per new customer G = average first order × gross margin
Break-even customers K = C ÷ G, rounded up
Break-even rate = K ÷ N

Variable	Meaning	Where you get it
N	Pieces mailed	Your plan
C	Total cost	Quotes plus postage
G	Profit per new customer	Your books
K	Customers needed	C ÷ G

The rules we apply:

Count bookings, not calls.
Give every mailing its own tracking code or landing address.
Decide on first-order profit by default; use lifetime profit only when your records show how often customers return.
Compare your rate with a benchmark only if both use the same measure³. Your break-even line is the test.

Size the first batch so you can afford to lose it and its break-even count is several customers. Once a mailing passes, check the payback in the unit economics calculator.

Scheme of 4 steps in order: Count bookings, not calls → Give every mailing its own tracking code or… → Decide on first-order profit by default… — Each step builds on the one before it: start with «Count bookings, not calls» and get to «Compare your rate with a benchmark only if…» only when the steps between are done.

Example: 1,000 postcards for a cleaning service

This is an example by our method. Every figure is an assumption except postage, which comes from the USPS price notice.

A house-cleaning service mails 1,000 postcards (assumption) through EDDM Retail, sized to the flat rule above.

Line	Value	Status
Pieces N	1,000	Assumption
Design	$0, made in a free editor	Assumption
Print	$0.20 per card	Assumption
Postage	$0.260 per piece	USPS price⁴
Total cost C	1,000 × $0.46 = $460	Arithmetic
First clean, margin	$160 at 40%, so G = $64	Assumption

First-order view: K = $460 ÷ $64 = 7.19, rounded up to 8 customers, a break-even rate of 8 ÷ 1,000 = 0.8%.

Lifetime view: with 6 cleans a year (assumption), yearly profit per customer is 6 × $64 = $384, so K = $460 ÷ $384 = 1.20, rounded up to 2 customers, a break-even rate of 0.2%.

The measured result is 5 customers from 1,000 cards (assumption). First-order profit is 5 × $64 = $320, $140 short of $460; lifetime profit is 5 × $384 = $1,920, which clears it.

Rule 3 decides: if your books show customers booking about six times a year, mail the next routes; if not, record a $140 loss and change the offer or routes. If 12 people called and 5 booked (assumption), you record 0.5%.

Plan your first mailing in 7 steps

1. Set the goal and the offer

Write one offer for the routes or the list segment, with a deadline. Write the offer from your value proposition, and open with the problem your customers name. Output: a one-sentence offer.

2. Choose the route or the list

For EDDM, pick the carrier routes inside the ZIP Codes you serve. For a list, clean your customer file or buy names. Output: a route list or an address file.

3. Pick the format and size

For EDDM, the piece must meet the flat rule on weight and size⁸. Output: dimensions and weight confirmed with your printer.

4. Set the budget and the break-even line

Collect quotes, then compute C, G, K and the break-even rate as shown above. Output: the number of customers this batch must produce.

5. Design the piece and the tracking

Put the offer and deadline in one headline on the front, with one call to action next to the tracking code. Use the back for details and the mailing panel; EDDM Retail pieces are addressed to “Postal Customer”¹. See what competitors already mail first. Output: a proof with the code on it.

6. Print and mail

For EDDM Retail, print, pay postage online or at the Post Office¹, and drop the bundles off; list mail also needs your permit and presort. Output: the mailing date, logged.

7. Count customers and decide

Record each booking against its code. Compare customers ÷ pieces with your break-even rate. Output: go, change the offer or routes, or stop.

Tie the mailing to your phone, site and email

Build a landing page or QR code used only for this mailing.
Set up a phone number that appears only on this piece.
Run an Informed Delivery interactive campaign with a ride-along image and a target URL².
Email customers on your list who live on the mailed routes.

Then put mail into your go-to-market plan next to your other channels.

Mail it yourself or hire a mail house

Mail it yourself (EDDM Retail): no special permit¹; you bundle and drop off the pieces. Fits route mailings.
Hire a mail house: it handles permits, presort, printing, addressing and mailing. Fits list mailings.

Ask any printer or mail house:

What is the all-in price per piece?
What is the minimum run?
How many business days pass from approved proof to mail drop?
Do you check addresses and presort list mail?
Will I see a proof before printing?
Can each batch carry its own code or phone number?

Mistakes that sink a first mailing

A 4 by 6 inch card sent by EDDM. Fix: check the flat rule before you print.
Two or three offers on one card. Fix: one offer, one action.
Mailing every route at once. Fix: mail one batch, measure, then scale.

If you have not launched yet, check the idea first.

FAQ

Does direct mail still work for small businesses?

It works when a small test can reach your break-even rate. Benchmarks differ in what they count³, so judge by customers per piece.

How much does a direct mail campaign cost?

EDDM Retail postage is $0.260 per piece from July 12, 2026⁴. Print and design prices come from your quotes, as does any list fee. In our example, with print assumed at $0.20 a card, 1,000 cards cost $460 in total.

What response rate is good?

Any rate above your break-even rate. In our worked example, built on assumptions, that line is 0.8% on first-order profit.

Do I need a mailing list or a permit for EDDM?

EDDM Retail needs neither¹. List mailing through USPS Marketing Mail needs a Business Mail Permit and at least 200 pieces or 50 pounds⁶.

How many pieces should I send first?

EDDM Retail requires at least 200 pieces⁷; beyond that, pick a batch you can afford to lose whose break-even count is several customers.

How do I track who responded?

Print a code used only on that mailing, then log every booking against it.

Can I just send a standard 4 by 6 inch postcard through EDDM to save on print?

Fox Not through EDDM Retail. The page says a 4 by 6 inch postcard does not qualify, because the piece must be a flat that is longer than 10-1/2 inches, taller than 6-1/8 inches, or thicker than 1/4 inch. It also must weigh no more than 3.3 ounces. Next step: confirm dimensions and weight with your printer before you approve a proof.

Should I count first-order profit or lifetime profit when I work out my break-even?

Fox Default to first-order profit. Use lifetime profit only when your records show how often customers come back. In the cleaning example, first-order break-even is 0.8%, but with 6 cleans a year it drops to 0.2%. Next step: check your books for repeat frequency before you rely on the lifetime view.

My mailing brought fewer customers than break-even. What do I do now?

Fox Decide from your books, not from hope. In the example, 5 customers from the batch fell $140 short on first-order profit. If customers book about six times a year, mail the next routes. If not, record the loss and change the offer or routes. Next step: log each booking against its code and compare customers divided by pieces with your break-even rate.

People called but didn't all book. Which number counts as my response rate?

Fox Count bookings, not calls. In the example, 12 people called and 5 booked, so you record 0.5%. Give each mailing its own tracking code or landing address so the bookings tie to it. Next step: log every booking against the code, then compare that rate with your break-even line.

Sources

usps.com, 10/23/2026
usps.com, 10/23/2026
blog.crst.net, 10/23/2026
mailpro.org, 10/23/2026
pe.usps.com, 10/23/2026
pe.usps.com, 10/23/2026
postalpro.usps.com, 10/23/2026
pe.usps.com, 10/23/2026
postalpro.usps.com, 10/23/2026

Direct Mail Marketing for Small Business: 7 Steps, Costs and the Break-Even Math

The short version

Why direct mail still works for a small business