Billing Zero vs HoneyBook: Which Fits a Retainer Business?

HoneyBook runs the whole client journey. A lead fills out your form, an automation follows up, and the client books a call, signs, and pays from one “smart file.” If you juggle inquiries, discovery calls, and many short projects, that pipeline is the reason to buy it. HoneyBook also adds AI features, meeting notes, a client portal, and 40+ integrations.

Billing Zero runs the money side of a retainer. You add a client, a scope, a price, a minimum term, and a cancellation notice period. The client signs and puts a card or bank account on file. After that, the retainer bills itself on schedule. It doesn’t try to be your CRM or your scheduler.

Already have a CRM, or get clients by referral? You may not need HoneyBook’s pipeline, just billing that runs itself.

HoneyBook charges a flat subscription with unlimited clients. On top of that, you pay its processing fees on each payment. As of Oct 2026 those are 2.9% + 25¢ for Visa and Mastercard, 3.4% + 9¢ for Amex, Discover, and saved cards, and 1.5% for ACH, per its Help Center. On Premium, businesses that process over $500,000 a year may qualify for discounted card rates.

Billing Zero charges by how many clients you bill automatically: 1 on Free, 10 on Solo ($39/mo), and 50 on Agency ($129/mo). Billing Zero takes no percentage of your volume. Card processing fees still apply, but they go to the processor, and you can pass them to the client. Billing Zero says bank transfers are always free.

What that means in practice:

• With a few large retainers paid by bank transfer, the fee structure matters more than the subscription price. A 1.5% ACH fee on $20,000 a month is $300.
• With many small projects and lots of new leads, HoneyBook’s unlimited clients and built-in pipeline can be worth more than per-transaction savings.

Run the numbers with your own volume and payment mix.

HoneyBook is the better fit if:

• You live on inbound leads. Lead forms, automated follow-ups, and a visual pipeline are core features.
• You book calls and sessions. The built-in scheduler can sit inside the same file as the contract and the invoice.
• You run lots of project work. Proposals let clients pick packages, and the contract and invoice update to match.
• You want an all-in-one workspace with a client portal, AI tools, tasks, and integrations like QuickBooks Online (Essentials and up).
• You want a published country list. As of Oct 2026, HoneyBook supports the U.S., Canada, the UK, and Australia.
• You want hands-on setup help. HoneyBook offers free file setup and support seven days a week.

Billing Zero is the better fit if:

• Your revenue is retainers. Billing Zero is built around recurring autopay, not one-off projects.
• Clients drop off or pause on you. Minimum terms and cancellation notice are part of the agreement, so a client can’t disappear overnight.
• You want to keep 100% of the invoice. Billing Zero takes 0% of your volume, you can pass card fees to the client with automatic disclosure, and it says bank transfers are free.
• You’re already on Stripe. You can import existing clients, subscriptions, and payment history and keep going.
• You want white-label billing. On the Agency plan, clients see your logo, colors, and name.
• You don’t need another CRM. You get contracts, billing, a revenue and MRR dashboard, read receipts, reminders, and a referral program, without a pipeline you won’t use.