Substack promo codes
8 Substack codes are on file. None has passed a checkout test yet, so try them before you count on the saving.
- Codes listed
- 8
- Verified
- 0
- Sitewide
- 0
- Last checked
- Oct 14, 2026
Unverified codes
Listed as found; some may have ended50% Off
Not verified
50% Off The Deep Dive Subscription at Substack
- 50% off your order
- Applies to: Select items
25% Off
Not verified
25% Off Bundles at Substack
- 25% off your order
- Applies to: Select categories
20% Off
Not verified
20% Off Matchquarters at Substack
- 20% off your order
- Applies to: Select items
20% Off
Not verified
20% Off Fahrenheit Press at Substack
- 20% off your order
- Applies to: Select items
15% Off
Not verified
15% Off With 3 Certifications at Substack
- 15% off your order
- Applies to: Select categories
15% Off
Not verified
15% Off Select Items at Substack
- 15% off your order
- Applies to: Select items
$20 Off
Not verified
$20 Off When You Register At Course at Substack
- Applies to: Select categories
Free Shipping
Not verified
Free Shipping On Tiny Fish at Substack
- Applies to: Select items
How to use a Substack code
Show and copy the code
Start with a verified code. The code opens in a new tab and this tab continues to Substack.
Fill your bag at Substack
Add the items the code applies to. Sale items and some brands are often excluded.
Paste it at checkout
Enter the code in the promo field before you pay. If the total does not change, try the next code.
Questions about Substack codes
Does Substack have a working promo code right now?
We list 8 Substack codes, but none has passed a checkout test yet. Treat them as unconfirmed and try the first one listed.
What is the best Substack promo code today?
The strongest offer we have on file is “50% Off The Deep Dive Subscription at Substack”. It has not been verified, so it may not apply to every basket.
Do Substack codes work on everything?
None of the current codes is described as sitewide. Most Substack codes apply to selected items, a minimum spend or new customers, so check the terms listed under each code.
How do I use a Substack promo code?
Select “Show code” on this page and copy the code, add your items to the bag at Substack, and paste the code into the promo or discount field at checkout before you pay. The order total should update straight away; if it does not, the code does not apply to your basket.
Why did my Substack code not work?
The usual reasons are an expired code, sale items that are excluded, a minimum spend that has not been reached, or a code limited to first orders. Codes marked “Verified” were accepted at checkout on the date shown; unverified codes are listed as found and may already have ended.
Codes are collected from public sources and re-checked on a rolling schedule; retailers can end an offer at any time. InfluencerRate may earn a commission when you shop through links on this page.