How to Apply Discount Codes and Promo Codes
Last updated: October 15, 2026
This guide explains how discounts and promo codes work at Summ (formerly Crypto Tax Calculator), including:
Who is eligible for discounts
How automatic partner discounts are applied
How to manually enter a promo code at checkout
What to do if a discount isn't working
Alternatives for existing users
Who can use discount codes
Discount codes and promo codes are only available for first-time purchasers. This means:
You are purchasing your first annual subscription for your Summ account
The discount applies only to your first year—not to renewals or future purchases
If you've previously paid for any subscription on your account, you will not be eligible to use promo codes. Existing users can earn rewards through the Refer a Friend program instead.
How automatic partner discounts work
If you sign up through a partner referral link, your discount will be automatically applied to your account.
How to ensure the discount is active:
Click the partner referral link to sign up (not log in to an existing account)
Complete the signup process to create your new account
Navigate to the Plans page
You'll see the partner discount displayed on the pricing. Select the plan that suits you and proceed to checkout
The discount will appear on the checkout page. You can confirm if all correct before hitting the payment button.
Important: The discount only applies if you sign up using the referral link. If you create your account through a different method and then log in via the referral link, the discount will not be applied.
What to do if the partner discount isn't showing
If you signed up through a partner referral link but don't see the discount on your Plans page, this means the discount wasn't applied during signup.
If you have a promo code: You can still manually enter it at checkout (see instructions below).
If you don't have a promo code: Contact the support team with details about which partner link you used and how you accessed the link, and the team can check it for you.
How to manually apply a promo code
If you obtained a promo code from a promotion, partnership, or other source, follow these steps:
Log in to your Summ account
Navigate to the Plans page
Select the subscription plan you want to purchase
Click to proceed to the checkout page
On the checkout page, copy and paste your promo code exactly as provided
The page will immediately update to show:
The discount code and the amount being applied
Your new discounted total
Review the discounted price to confirm it's correct and complete your payment
Note: If you are entering your promo codes manually, you must proceed to checkout to enter the code and see the updated pricing.
Important promo code rules
One discount per purchase
You cannot stack multiple promo codes. If you have more than one code, you must choose which single code to apply.
Promo codes expire
All promo codes have expiration dates. Make sure to use your code before it expires. Check the source you get the promo code (promotional website, emails, etc) for the expiration date.
Checkout page confirmation
The checkout page will display your applied promo code if it's valid. Always verify the final payment amount before completing payment.
Troubleshooting discount issues
"My promo code shows as invalid"
If you believe your code should be valid:
Double-check you entered it exactly as provided (no extra spaces, correct capitalization)
Verify the code hasn't expired
Confirm you haven't previously purchased a subscription on this account
If the code still doesn't work:
Contact the support team and provide:
The exact promo code you're trying to use
Where you obtained the code (partner name, promotion source, etc.)
The support team will check the issue for you
"I don't see where to enter a promo code"
Promo codes can only be entered on the checkout page, not the Plans page. Make sure you've:
Selected a subscription plan
Clicked through to the checkout page
The promo code field should be visible on this page
If you still don't see the field, contact support for assistance with a screenshot of your checkout page.
"I signed up through a partner link but don't see the discount"
This indicates you are not eligible for the promotion. This typically happens if:
You already had an account and logged in via the link (instead of signing up)
You created your account through a different method first
If you have a promo code from the partner, you can still apply it manually at checkout.
Discounts for existing users
If you've already completed your first year and are looking for savings on renewal, promo codes are not available. However, you can earn cash rewards through the Refer a Friend program.
Frequently Asked Questions
Q: Can I use a discount code on my subscription renewal?
No. Discount codes and promo codes are only available for first-time purchasers. They cannot be applied to renewals or subsequent purchases.
Q: I have multiple promo codes. Can I use them all?
No. You can only apply one promo code per purchase. Choose the code that provides the best discount for your needs.
Q: I signed up through the referral link / my exchange that partnered with you. How do I get my promotion?
If you sign up using a referral link from our partner, the discount will be visible on the Plans page before you proceed to checkout.
Q: How long do promo codes last?
All promo codes have expiration dates. Check the promotional page or email where you received the code for the specific expiration date. Expired codes cannot be used.
Q: Can I apply a promo code after I've already paid?
No. Promo codes must be entered at checkout before completing payment. Discounts cannot be applied retroactively to completed purchases.
Q: I'm a returning user who previously had a subscription but cancelled. Can I use a promo code now?
No. Promo codes are only for accounts that have never purchased a subscription before. Since you previously paid for a subscription, you are not eligible for promo codes. Consider using the Refer a Friend program instead.
Q: Can you give me a promo code? I want to subscribe for my first year.
You can use 'JU9MUVHP' on the checkout page to get 10% off your first-year subscription.
Q: I purchased a plan using a discount or promo code. I want to upgrade my plan, but the discounted price doesn’t apply. Can I still get the discount on my upgrade?
Yes, you can.
If you’ve already applied a discount or promo code to your current subscription and want to upgrade to a higher plan:
Upgrade your plan at the full price difference shown in your account.
After upgrading, type “talk to human” in the chat to connect with our support team.
Our team will refund the difference so that your total payment reflects the same discount you originally received.
Example:
You purchased a $100 plan with a 10% discount, so you paid $90.
Two days later, you decide to upgrade to a $200 plan.
Upgrade at the full price, and then contact support.
We’ll refund the difference, so your total first-year cost is $180 (10% off the $200 plan).