Consultant retainer invoicing · September 20, 2026
Best invoicing for consultant retainers (2026)
A recurring number that matches the SOW. Complementary to consultant invoicing — that page is the scoped bill. This page is the monthly retain.
By Gregory GreensteinUpdated September 20, 2026Affiliate disclosure
Retainer invoicing fails when the SOW says $6,000/month and the client gets a one-off PDF every time, or when unused hours vanish without a record. The job is: a recurring invoice, a card or ACH on file, and a line that matches the agreement. This is complementary to best invoicing software for consultants — same aisle, retainer-shaped skip-ifs.
FreshBooks wins when recurring invoices and reminders are the leak. HoneyBook wins when the proposal and contract start the retain. Bonsai is the freelancer suite with retainers as a first-class story. QBO wins when the CPA already lives in the file and you will use recurring invoices there.
Prices as of September 21, 2026. Unused hours and “use it or lose it” are contract terms, not software features. This is not legal or tax advice. We are not your accountant.
The short list
Public list prices as of September 20, 2026. Promos change. Confirm on the vendor page before you buy.
| # | Product | Best for | Public starting price | Score |
|---|---|---|---|---|
| 1 | FreshBooks | Consultants who already invoice companies and need a recurring bill plus reminders | Lite $23/mo for 5 billable clients; Plus $43 for 50; Premium $70. Team $11/person. | 8.6 |
| 2 | HoneyBook | Consultants who sell a package, collect a signature, then retain | HoneyBook publishes starter and team plans on honeybook.com/pricing. Confirm the live page. | 8.2 |
| 3 | Bonsai | Independent consultants who want proposals, contracts, and retainers in one freelancer suite | Bonsai publishes plan tiers on hellobonsai.com. Confirm the live card — packaging has moved. We will not freeze a stale third-party figure. | 8.0 |
| 4 | QuickBooks Online | Consultants whose CPA already lives in QBO and who will actually use recurring invoices | Simple Start $38/mo; Essentials $85; Plus $140. Recurring invoices exist on Online — confirm the live feature grid for your plan. | 7.7 |
01
FreshBooks
Consultants who already invoice companies and need a recurring bill plus reminders
Public pricing: Lite $23/mo for 5 billable clients; Plus $43 for 50; Premium $70. Team $11/person.
FreshBooks US pricing, reviewed September 21, 2026.
Skip if
The retain starts as a heavy proposal-and-contract motion. HoneyBook may fit better. Or you only have one client — Wave recurring plus a SOW.
Why it ranks
- Recurring invoices and late reminders are the retain job.
- Time tracking sits next to the bill if the SOW is hours against a cap.
- Plus is the usual buy once you exceed five clients.
- See Is FreshBooks worth it and consultant invoicing.
Watch-outs
- Lite’s five-client cap includes retainer clients.
- Unused-hour logic is a report you build, not magic.
- Card fees on $6,000/month are the second price. Prefer ACH.
- Still not QBO. The CPA may want a file.
02
HoneyBook
Consultants who sell a package, collect a signature, then retain
Public pricing: HoneyBook publishes starter and team plans on honeybook.com/pricing. Confirm the live page.
HoneyBook official pricing, reviewed September 21, 2026.
Skip if
You only need a recurring PDF and reminders. FreshBooks is calmer.
Why it ranks
- Proposal, contract, and payment schedule share a client — the start-of-retain job.
- Looks like a studio a company AP desk will still pay.
- Useful when the first month is a project and the rest is a retain.
- Ranks on photographer and wedding CRMs for the same motion.
Watch-outs
- Overkill if the SOW is already signed in DocuSign.
- Still not a ledger.
- Team plans exist. Model them.
- Do not dual-stack FreshBooks and HoneyBook for the same retain.
03
Bonsai
Independent consultants who want proposals, contracts, and retainers in one freelancer suite
Public pricing: Bonsai publishes plan tiers on hellobonsai.com. Confirm the live card — packaging has moved. We will not freeze a stale third-party figure.
Bonsai official site, reviewed September 21, 2026.
Skip if
Your CPA is QBO-only and you refuse a second login. Or you need FreshBooks-class AR reminders more than a suite.
Why it ranks
- Retainers and contracts are a first-class freelancer story.
- Useful when HoneyBook feels like a wedding tool.
- A known name among independents who sell time.
- Sits on the consultant invoicing ranking for the same reason.
Watch-outs
- Confirm the live sticker.
- Still not a general ledger.
- Company AP portals may still want a PDF plus ACH.
- Leaving later is an export.
04
QuickBooks Online
Consultants whose CPA already lives in QBO and who will actually use recurring invoices
Public pricing: Simple Start $38/mo; Essentials $85; Plus $140. Recurring invoices exist on Online — confirm the live feature grid for your plan.
Intuit public pricing, reviewed September 21, 2026.
Skip if
You need a client-facing proposal flow. QBO is a ledger with invoices, not HoneyBook.
Why it ranks
- One file for the retain and the year.
- The US CPA network is the product.
- Useful when FreshBooks would be a second system of record.
- See how much QBO costs.
Watch-outs
- Client experience is not the product.
- Simple Start may be thin if bills and seats appear.
- Payments are extra processing.
- Do not buy Plus only to look retained.
How we picked
The job is a US consultant retain: recurring bill, record, optional time against a cap. We scored recurring-invoice honesty vs studio suites. Stripe subscriptions are a rail — fine next to a SOW, not a replacement for terms. AI SOW writers stay on Aiacent.
Who should skip this page
- Project-only consultants — consultant invoicing.
- Agencies with retainers and a PM suite — agency ops stack.
- Tutors selling packages — tutor invoicing.
- Anyone treating a retain as a way to skip invoices.