Substack vs. Ko-fi: Which Is Right for Your Creator Page?

Choose Substack if you want to publish a recurring paid newsletter and build an email subscriber business. Choose Ko-fi if you want a lower-fee tip jar, shop, or optional memberships without a regular publishing commitment. Substack charges 10% of subscription revenue; Ko-fi offers $0 options with either 0% or 5% platform fees depending on configuration.

Do you want subscribers or supporters?

Substack is built around recurring publishing: readers enter a card, choose a monthly or annual paid-newsletter subscription, and keep paying until they cancel, at Substack’s own minimum of $5 per month or $30 per year for a paid plan (How do I set up a paid publication?). Substack’s own support documentation describes subscriptions as “the most important type of relationship on Substack,” with its post editor, subscriber email list, and follow/recommendation network built to help creators grow that subscription business rather than just publish one-off posts.

Ko-fi begins with one-off support. A fan can leave a tip or buy an item without starting a recurring subscription. Ko-fi also offers memberships, but its pricing page presents them as an optional monetization feature alongside tips, shop sales, and commissions rather than a requirement.

The practical choice is therefore not simply “10% versus 5%.” It is whether you want to maintain a paid email publication or give supporters several ways to pay without promising a regular newsletter.

What does each platform take from your earnings?

Substack’s platform fee is 10% of paid-subscription revenue, and it has no monthly software charge (Substack fee explainer).

Stripe’s own pricing page lists its standard US card rate as 2.9% + 30¢ per successful charge (Stripe pricing), and Substack’s own support documentation confirms that same 2.9% + $0.30 card fee applies to Substack subscription payments, plus a 0.5% recurring-billing fee that applies specifically to those recurring subscriptions (How can readers pay for a subscription on my Substack publication?, updated August 31, 2026).

Ko-fi names its two free options “Ko-fi Free” (0% on one-off tips, with a flat 5% fee on shop items, memberships, monthly tips, and commissions) and “Standard” (a flat 5% fee on every payment type, including one-off tips, in exchange for extra perks like supporter-only content); a creator toggles between them anytime from Settings > Payment, and Ko-fi’s own documentation states that “new creators now start with all of Ko-fi unlocked from day one,” with the option to “opt out at any time” and keep tips fee-free (Ko-fi fee explainer). On top of Ko-fi’s own service fee, that same page notes PayPal and Stripe still charge their normal transaction fees on every payment, which Ko-fi states are “usually around 3% + $0.30” and does not discount or absorb. Ko-fi Gold costs $12 per month and removes Ko-fi’s own platform fee, though PayPal’s or Stripe’s processing fee still applies.

Substack pays subscription revenue into the creator’s connected Stripe account, since Substack requires creators to connect Stripe before enabling paid subscriptions (How do I set up a paid publication?). Ko-fi instead pays out through either a connected PayPal or Stripe account, with payments landing directly and no separate payout schedule to wait on (How do I get paid?).

Which platform keeps more from a small payment?

For an eligible creator using Ko-fi Free, a $5 one-off tip has a 0% Ko-fi platform fee; PayPal’s or Stripe’s own transaction fee still applies on top, which Ko-fi’s documentation describes only as “usually around 3% + $0.30” since the exact rate varies by processor, country, and card type. Ko-fi’s Standard tier instead applies a 5% Ko-fi fee to that same $5 tip before the same variable PayPal/Stripe processing fee.

Substack’s official setup documentation lists only monthly, annual, and founding-member subscription plans as payment options for a publication, with no built-in one-off tipping feature described; its documented paid product is therefore a recurring subscription, from which Substack takes 10% (How do I set up a paid publication? and Substack fee explainer).

For example, one reader paying $7 per month generates $84 over 12 months. Substack’s 10% platform fee is $8.40, leaving $75.60 before Stripe’s processing and recurring-billing fees. This correct calculation makes the trade-off clearer: Substack takes a larger percentage, but the charge repeats automatically until the subscriber cancels.

At Substack’s $5-per-month minimum price, 300 paying subscribers generate $1,500 in monthly billings; after Substack’s 10% fee ($150), Stripe’s card fee of 2.9% + $0.30 per transaction (300 × $0.445 = $133.50), and Stripe’s 0.5% recurring-billing fee ($7.50), the creator nets roughly $1,209 per month, or about 80.6% of gross billings (How do I set up a paid publication? and How can readers pay for a subscription on my Substack publication?). Matching that $1,209 through Ko-fi Free, which charges 0% on one-off tips, would take roughly 121 tips averaging $10 each in a single month before payment-processor fees —a volume most one-off tip jars don’t sustain every month. The deciding variable is therefore whether fans will maintain recurring subscriptions, not the platform-fee percentage alone.

Which platform fits your content best?

Choose Substack when the product is writing delivered on a schedule. It fits creators who want to publish regularly, collect email subscribers, and place some or all posts behind a recurring paid subscription.

Choose Ko-fi when you want a broader creator page without making a newsletter commitment. You can begin with one-off support, sell prints or downloads through a shop, offer commissions, and add memberships only if recurring access makes sense. Ko-fi’s memberships are optional rather than mandatory.

A simple decision guide is:

• Recurring paid writing: Substack.
• One-off tips with the lowest available platform fee: Ko-fi Free.
• Tips, shop sales, commissions, and optional memberships on one page: Ko-fi.
• One-time interactions with a fixed price and defined outcome: neither fits well; see the note below on FanBell, a specialist tool from this site.

A note on a third, narrower option

Neither Substack’s subscription model nor Ko-fi’s open-ended tip jar is built around a single fixed-price, one-time interaction, such as one paid question answered or one shoutout recorded. FanBell — this site’s own product — is a specialist tool for exactly that: fixed-price paid private questions and personalized shoutouts, with no follower minimum and a 12% fee charged only after a fan pays (how FanBell works and FanBell pricing). It’s worth a look only for that narrow case — it isn’t a substitute for Substack’s newsletter model or Ko-fi’s tip jar and shop.

Frequently asked questions

Does Substack have a tip jar like Ko-fi?

Not a built-in one. Substack’s official setup documentation lists monthly, annual, and founding-member subscription plans as the available payment options and does not describe a one-off tipping button (How do I set up a paid publication?). Ko-fi, by contrast, specifically supports one-off tips through its creator pages, at a 0% Ko-fi fee on the Free tier.

What does Substack cost after all fees?

Substack takes 10% of paid-subscription revenue and charges no monthly software fee. Stripe separately charges 2.9% + $0.30 per card charge and a 0.5% recurring-billing fee on Substack’s subscription payments (How can readers pay for a subscription on my Substack publication?). The flat $0.30 charge consumes a larger share of lower-priced monthly subscriptions.

Can I move my subscribers if I leave Substack or Ko-fi?

Substack allows creators to export their email subscriber lists (Substack subscriber-export documentation). Substack subscription payments are processed through a connected Stripe account, while Stripe provides a formal process for migrating customer and payment data between supported accounts or processors (Stripe data-migration documentation). A paid-subscriber migration still depends on the destination platform, account setup, and Stripe’s current approval process.

Ko-fi tips are one-off payments, so there is no recurring tip subscription to transfer. If you use Ko-fi memberships, check the destination platform’s current import and payment-migration options before moving.

Do I need a minimum number of followers to get paid?

Neither Substack’s paid-subscription documentation nor Ko-fi’s pricing documentation lists a follower or subscriber minimum for enabling payments (Substack fee explainer and Ko-fi pricing). Earnings depend on whether audience members choose to pay, not on reaching a published audience-size threshold first.

Where can you read next?

For the FanBell head-to-head, see FanBell vs. Ko-fi, and for the recurring-membership angle against a tip jar, Patreon vs. Ko-fi. For the full landscape, see Best Creator Monetization Platforms in 2026.

If what you actually want is for fans to pay once for a specific interaction — a question answered, a shoutout, a tip — instead of committing to a subscription or an open-ended tip jar, that's what FanBell is built for. Create your free FanBell page — it's free to start, and the 12% platform fee only applies once a fan actually pays you.