The ConvertKit Growth Story: $1,337/mo to $29M ARR, Bootstrapped

"I made the decision to focus full-time on ConvertKit, which at the time was a failing product with only $1,337/month in revenue."
Nathan Barry, "Growing ConvertKit to $30,000 in Monthly Recurring Revenue," October 2015

In October 2014, ConvertKit was a rounding error. It had been live for more than a year. It was making $1,337 a month. Its founder, Nathan Barry, was staring at the decision most people make quietly and never write down: keep a failing product on life support, or switch it off and go back to the work that already paid the bills.

He did neither. He went all in, in public, and twelve months later the same product was doing $30,000 a month.

Quick answer

The ConvertKit growth story is one of the best-documented bootstrapped comebacks in software. As of 2026 the company (rebranded to Kit in 2024) is a fully bootstrapped, profitable business that Barry has said reached $29M in annual recurring revenue by 2021, with no outside investment. It did not begin that way. In October 2014, ConvertKit was a $1,337/month product Barry nearly killed. The turnaround came from two deeply unscalable moves for a self-serve tool: manual direct sales, and doing customers' email-platform migrations for them, by hand, for free. Every figure below comes from Barry's own published revenue reports and talks, and is year-tagged.

The $1,337 month

ConvertKit launched out of a self-imposed challenge: Barry gave himself a budget and a deadline to build a product that would beat his book income. A year in, it had not. The product worked, the market was real, and it was still stuck near $2,000 a month, drifting back toward $1,337. By his own account he was three months of savings from calling it.

What changed was not the product. It was the decision to stop treating ConvertKit as a side project and to make its numbers public. Starting in late 2014, Barry began publishing monthly revenue reports on his blog, exact figures, wins and stalls included. For a tool that sold to bloggers and creators, that transparency was not a vanity exercise. It was the top of the funnel. The audience that came to read a founder document his revenue was the exact audience that needed an email tool.

The unscalable move: selling a self-serve tool by hand

Here is the part of the ConvertKit growth story that does not fit the "build it and they will come" template.

ConvertKit was self-serve software. The obvious playbook is ads, content, and a slick signup flow. Barry did the opposite. He and a tiny team started doing direct sales, one creator at a time.

"What worked came down to just two things: direct sales and referrals."
Nathan Barry, "Direct Sales for Bootstrapped SaaS Startups," July 2017

The outreach was blunt and specific. He would find a blogger already on Mailchimp or a similar tool and ask a single question: "Is anything frustrating you with MailChimp?" No pitch deck, no demo funnel. A real question about a real pain.

Then came the move that most founders will not copy because it sounds insane at scale. For any account worth switching, ConvertKit did the migration for the customer, for free:

"For any account over $79/month (5,000 subscribers) we will move them from their old email tool over to ConvertKit for free."
Nathan Barry, "Direct Sales for Bootstrapped SaaS Startups," July 2017

That meant FTPing into a customer's website, swapping every opt-in form, copying automated email sequences by hand, and importing subscribers with their tags intact. It was hours of unglamorous work per account. And it produced the single number in this whole story that an operator should tattoo somewhere: the churn on migrated accounts was about 1.5%, versus a more typical 5.5%. Doing the painful onboarding for the customer did not just win the sale. It nearly quartered the churn on the accounts that mattered most.

The MRR curve, month by month

Most retellings of the ConvertKit growth story quote the endpoints and skip the middle. The middle is where the lesson lives. Here is the climb Barry documented in his October 2015 report:

Figures from Nathan Barry's October 2015 revenue report. That is roughly a 22x climb in twelve months, and note the shape: nothing magic in the first quarter, then the direct-sales and webinar engine compounds through mid-2015. One webinar alone drove about $13,000 by the time he wrote the update.

The affiliate engine nobody wanted to pay for

The second referral channel was an affiliate program, and Barry's take on it is a small master class in incentive design. Most SaaS companies bolt on a 5% to 15% commission and wonder why nobody promotes them. ConvertKit paid a 30% recurring commission, for as long as the referred customer stayed.

"Offering credits or a pitiful commission (like 5-15%) is just insulting to your customers and won't motivate anyone."
Nathan Barry, October 2015

Creators recommend tools they actually use. A recurring 30% cut turned that natural recommendation into a real income stream for the recommender, which turned ConvertKit's happiest users into a distributed, motivated sales force. Referrals plus direct sales, the two levers Barry named, fed each other.

Where it went: $725K MRR, then $29M ARR, then Kit

The climb did not stop at $30,000. By July 2017, Barry was writing about growing ConvertKit "from $1,300 to $725,000 MRR", a run rate near $8.7M a year, still on the same direct-sales-plus-migration spine. By 2021 he was telling audiences the company had bootstrapped its way to $29M in ARR, all without raising a dollar of venture money. In 2024 ConvertKit rebranded to Kit and kept its bootstrapped, creator-first positioning.

That last detail is the quiet flex of the whole ConvertKit growth story. A product three months from death in 2014 became an eight-figure company that never had to answer to an investor.

What an operator can copy in 2026

You cannot copy Barry's timing or his existing author audience. You can copy the structure, and most of it is unglamorous on purpose.

• Do the onboarding your customer dreads. For high-value accounts, migrating them yourself is not a cost, it is the cheapest churn insurance you will ever buy. Barry's migrated accounts churned at 1.5% against a 5.5% baseline.
• Sell by hand before you sell by funnel. A self-serve product does not forbid direct sales. Early on, one honest question to a frustrated user beats a month of ad spend.
• Pay referrers like partners, not like an afterthought. A 30% recurring cut buys a sales force you do not manage. A 10% cut buys silence.
• Make your numbers the marketing. Publishing real revenue built the audience that bought the product. Transparency was a channel, not a diary.

Founders love to study the $29M. The $1,337 is the more useful number, because it is the one almost everyone quits at. If you want the other side of that decision, read how one team called it the opposite way in why we killed our SaaS at $12K MRR.