Program Details
| Commission | $0.20 per free sign-up / $20 per paid upgrade (Hybrid) |
| Cookie Duration | 90 days |
| Network | ShareASale, CJ Affiliate, PartnerStack, Direct |
| Payment Methods | Check (US only), Bank Wire, Direct Deposit |
| Min. Payout | $25 |
| Payment Frequency | Monthly (within 25 days after month end) |
| Category | Writing Tools / AI Productivity Software |
| Countries | Worldwide (check payments US only; non-US via bank wire) |
| Website | www.grammarly.com |
Grammarly is an AI-powered writing assistant used by over 30 million people daily to improve grammar, spelling, clarity, and style across virtually any platform or app. The company offers free and paid plans, with Grammarly Premium and Grammarly Business targeting professionals, students, and teams. In October 2025, Grammarly became part of the Superhuman productivity platform, though the product and brand operate independently.
The Grammarly affiliate program runs a hybrid model: affiliates earn $0.20 for every free account sign-up and $20 for every paid plan upgrade driven through their link. With a 90-day cookie window and high brand recognition, the program is one of the more attractive options in the writing tools niche – though the economics depend heavily on converting free users to paid subscribers.
Grammarly Affiliate Program Commission Structure
Grammarly uses a two-tier hybrid payout structure. You earn a small fixed amount for every free account sign-up you refer, and a larger flat commission when those users upgrade to a paid plan. This setup rewards affiliates who can drive traffic that ultimately converts to paying customers.
Top-performing affiliates can qualify for higher payout rates and periodic cash bonuses, though Grammarly does not publish the thresholds for these tiers publicly. Commissions are tracked on a last-click basis, so if a user clicks multiple affiliate links before converting, only the last one earns the credit.
| Action | Commission |
|---|---|
| Free account sign-up | $0.20 per sign-up |
| Paid plan upgrade | $20 per upgrade |
| Top performer tiers | Higher rates + cash bonuses (undisclosed thresholds) |
Cookie Duration and Tracking
Grammarly offers a 90-day cookie duration, which is notably long for a SaaS affiliate program. Most software tools offer 30-60 days, so the 90-day window gives your referrals more time to complete the free-to-paid conversion cycle before the cookie expires.
Grammarly also supports cross-device tracking, which helps recover conversions when a user clicks your link on mobile but completes sign-up on desktop – a common pattern for software products. Attribution is last-click, so the final affiliate link a user touches before converting gets credit.
Reporting and tracking are managed through the program’s affiliate network infrastructure (ShareASale, CJ Affiliate, PartnerStack, or the direct HasOffers platform). Which dashboard you use depends on which network your account is approved under.
Pros and Cons
Pros:
- Major global brand with 30M+ daily users – trust is rarely an issue with your audience
- 90-day cookie window is generous compared to most SaaS programs
- Free sign-up commission ($0.20) monetizes traffic that is not yet ready to pay
- Multiple traffic types allowed: websites, email lists, social media, e-books, and paid ads
- Cross-device tracking reduces lost conversions from multi-device user journeys
- Top-performer tiers and cash bonuses reward affiliates who scale volume
Cons:
- $0.20 per free sign-up is tiny – meaningful revenue requires high traffic volume or strong paid upgrade rates
- No PayPal option; non-US affiliates must accept bank wire payments in USD
- Selective approval – content must be topically relevant and of sufficient quality
- Strict rules on coupons, incentivized traffic, and brand bidding can void commissions if violated
- Last-click attribution means you can lose credit if a user clicks a competitor’s link after yours
How to Join the Grammarly Affiliate Program
Grammarly accepts applications through its direct affiliate portal and via three major affiliate networks: ShareASale, CJ Affiliate, and PartnerStack. Most publishers find ShareASale to be the most accessible starting point given its large publisher base and straightforward approval process.
- Create a publisher account on ShareASale, CJ Affiliate, or PartnerStack – Grammarly is available across all three networks.
- Search for Grammarly within the network’s merchant directory and submit an application to the program.
- Wait for review. Grammarly typically reviews applications within two business days. Your site and content will be evaluated for relevance and quality.
- Access creative assets. Once approved, you’ll find banners, text links, and a unique tracking URL in your affiliate dashboard.
- Embed your links in relevant content – writing guides, grammar tool comparisons, productivity posts, and education-focused articles tend to perform well.
Approval is moderate difficulty. Grammarly looks for publishers in writing, education, career development, technology, or productivity niches. Sites with thin content, unrelated traffic, or a history of coupon abuse are typically rejected. You’ll also need to agree to the program’s strict terms around prohibited promotional methods before your application is accepted.
Who Should Promote Grammarly?
Best fits: Writing bloggers, English learning sites, student resource sites, and career coaching blogs are natural matches. The free sign-up commission also makes Grammarly worthwhile for high-traffic general productivity or tech review sites, where even a low conversion rate on free sign-ups adds up across volume.
ESL (English as a second language) content creators are a strong fit – Grammarly’s core use case maps directly to an audience actively looking to improve written English. Similarly, resume writing guides, cover letter tutorials, and academic essay help content can convert very well given that these audiences have an immediate, practical need for the tool.
Weaker fits: Pure coupon or cashback sites will struggle with approval and face commission clawback risk. Affiliates outside the US should factor in that payments arrive via bank wire in USD only – no PayPal – which adds friction and potential currency conversion costs for international publishers.
How Grammarly Compares to Alternatives
| Program | Commission | Cookie | Network |
|---|---|---|---|
| Grammarly | $0.20 free sign-up / $20 paid upgrade | 90 days | ShareASale / CJ Affiliate / PartnerStack |
| ProWritingAid | Up to $20 per sale | 30 days | Direct |
| QuillBot | 10-20% per sale | 30 days | PartnerStack |
| Jasper AI | Up to 30% (top performers) | Not published | Direct |
Grammarly’s 90-day cookie window is the standout advantage over ProWritingAid and QuillBot, both of which use 30-day windows. For a tool with a free-to-paid conversion funnel, a longer cookie directly increases the number of upgrades you can capture after the initial click.
Jasper AI offers a higher percentage payout for top performers, but it targets a narrower AI copywriting audience and its program terms are less transparent. If your audience uses writing tools for grammar, proofreading, or ESL improvement rather than AI content generation, Grammarly is the stronger choice.
Frequently Asked Questions
How much does Grammarly pay affiliates per free signup and paid upgrade?
Grammarly pays $0.20 per free account sign-up and $20 per paid upgrade. Top performers can qualify for higher payout rates and periodic cash bonuses, though the exact thresholds for those tiers are not publicly disclosed.
How long is the Grammarly affiliate cookie?
The cookie window is 90 days. That is generous for a SaaS affiliate program – most writing tool programs use 30 days – and gives you a solid window to earn credit after a referral click, including time for the user to go through the free trial and decide to upgrade.
What payment methods does Grammarly use for affiliates?
Grammarly pays via check (US residents only), bank wire, or direct deposit. PayPal is not an option. Non-US affiliates receive payment by bank wire in USD, so international publishers should factor in potential conversion fees.
What is the minimum payout threshold?
The minimum payout is $25. Once you reach that balance, payment is issued within 25 days after the end of the month in which you earned the commission. Given the $0.20 free sign-up rate, reaching the threshold requires at least 125 free sign-ups or just a couple of paid upgrades.
Can affiliates promote Grammarly through email and social media?
Yes. Grammarly allows promotion via websites, email lists, e-books, social profiles, and online advertising. The key restrictions are no incentivized traffic (asking users to click for rewards), no unauthorized coupon distribution, and no deceptive brand bidding in paid search.
Does Grammarly allow PPC advertising on its brand keywords?
The program terms restrict certain brand bidding behaviors. Specifically, coupon misuse, incentivized traffic, and unauthorized use of the Grammarly brand in paid ads can void commissions. Check the current terms before running any paid search campaigns to avoid having earnings reversed.
Who is the best fit for the Grammarly affiliate program?
Publishers in writing, education, career development, English learning, and productivity niches tend to perform best. The dual-payout model (free sign-up + paid upgrade) also makes it viable for high-traffic general sites where even a modest free-to-paid conversion rate generates meaningful revenue over time.
How long does it take to get approved for the Grammarly affiliate program?
Grammarly typically reviews applications within two business days. Approval is moderate difficulty – your site needs to be topically relevant (writing, education, productivity, or related niches) and have reasonably maintained content. Thin content sites or those unrelated to Grammarly’s core use cases are likely to be rejected.
Final Verdict
The Grammarly affiliate program is one of the more credible options in the writing tools space, backed by a brand that practically sells itself. The 90-day cookie, cross-device tracking, and multiple allowed traffic types give affiliates real flexibility, and the free sign-up commission keeps revenue ticking even from traffic that isn’t ready to pay on day one.
The main limitation is the math: $0.20 per free sign-up is low, and meaningful earnings depend either on high traffic volume or a strong organic conversion rate from free to paid. The no-PayPal policy also creates friction for international publishers who prefer that payment method.
If your audience actively writes – students, professionals, ESL learners, content creators – Grammarly is worth adding to your monetization stack. Apply through ShareASale or CJ Affiliate for the smoothest onboarding experience, and focus your content on use cases where users have a pressing, specific need to improve their writing quality.
