Consultant Business Software · Australia
Send the proposal from the cab home — it's signed before you're back at the laptop.
Proposals that close on a phone tap, time-and-materials invoicing, recurring retainer billing, client CRM and an engagement pipeline — built for AU consultants who'd rather do consulting than chase paperwork. All-in-one for $0–$69/mo — replaces Bonsai + Xero + HubSpot + Calendly.





The average solo consultant saves $45+/mo replacing Bonsai + Xero + HubSpot + Calendly + Harvest with OneBookPlus.
See your savingsFree Tools & Resources
8-step founder guide — ABN, GST, PI, engagement letters, pricing, first 10 clients for consultants, agencies, and freelancers.
Open →Operator GuideHourly vs fixed-fee vs retainer vs value-based — when each model wins, AU benchmarks, and how to phase fees.
Open →ReferenceDrafting a tight SOW — deliverables, acceptance criteria, scope creep clauses, change-request workflow.
Open →ReferencePI insurance for consultants, marketing agencies, and freelancers — typical $1–5M cover, premium ranges, run-off.
Open →InteractiveInteractive — target salary, billable utilisation, overheads, GST + super, daily/hourly rate.
Open →Key takeaways
5Everything for the engagement
Proposals, time tracking, retainer billing, CRM and pipeline — without the bloat or the US-first awkwardness of generic freelancer tools.
Branded proposals with scope, milestones, fees and terms. Client taps Accept on their phone — work starts, no PDFs flying back and forth, no follow-up email tennis to confirm a yes.
Start a timer per engagement, log activities, add expenses. Convert tracked hours + costs to a GST-compliant invoice with one click. Stripe Pay Now link goes out with the PDF.
Recurring monthly retainer invoices fire automatically — set the schedule once, the system bills the client and chases payment so you spend zero time on collections.
Discovery → proposal sent → accepted → in delivery → invoiced. Every active engagement on one board, drag-to-update, with next-step ownership and value rolled up.
Every client with every proposal, invoice, note and call log on one timeline. Searchable, filterable, exportable. When the prospect calls back six months later, you remember everything.
Conversion-rate, average-days-to-pay and outstanding balance on the dashboard — so collections don't drift. Automated reminder emails chase overdue invoices without you lifting a finger.
Free plan available · No credit card · Cancel anytime
Free Website Included
Stop paying $30–80/mo to Wix or Squarespace — and skip the $1,500–3,000 up-front for a designer. Every OneBookPlus consultant gets a branded booking page on the free plan. Want it on your own domain like a proper business website? $15/mo and we host it for you.
your-business.onebookplus.com.auoronebookplus.com.au/book/your-businessyourbusiness.com.au— custom branded domain, we host the siteA prospect lands on your booking page at 10pm and books a discovery call for Thursday. The intake form captures their problem statement, budget range and timeline — so you walk into the call already briefed, no back-and-forth email tennis.
Brand color picker in settings. Logo upload. Trade licence number shown on every page so customers know you're legit.
Strategy sprint from $4,500. Monthly advisory retainer $2,800. Customers see prices before booking — kills the price-shopping phone calls.
70%+ of consulting searches happen on phones. Your booking page is built mobile-first; loads in under 2 seconds on 4G.
Already own yourbusiness.com.au? Add the Booking Website app ($15/mo) and point your domain at the booking page we host for you. We don't sell domains — keep yours wherever you registered it.
Schema.org markup for consulting services + suburbs you cover. Google finds you for 'management consultant in [suburb]' searches.
Consultants website cost — typical
Website builder
Wix, Squarespace or similar
Web hosting + SSL
Bundled in builders; separate if custom site
Designer (one-off)
Only if you want a custom-built site
Bookings on Calendly
Separate from your website
Typical recurring total
~$60–100/mo
+ $1,500–3,000 up-front if you hire a designer
With OneBookPlus
Your total
$0–15/mo
See it in action
Not mockups — these are the real product screens for your day-to-day.
Send a branded proposal with scope, timeline, fees and terms. Client taps Accept on their phone — work starts, no PDFs flying back and forth.

Tracked time plus expenses, GST included, Stripe Pay Now link. Or fixed-fee instalments — your call per engagement.

Discovery → proposal sent → accepted → in delivery → invoiced. Every active engagement on one board with next-step ownership.

Quote-to-engagement conversion (last 90d, benchmarked against the 25–40% PS-typical range), top clients with concentration-risk callout, avg days-to-pay and time-tracked today. The leading indicators consultants run their week off, not a generic ledger.

From discovery to paid
Four steps from discovery call to paid invoice — designed around the engagement lifecycle most consultants actually run.
Drop your booking link in LinkedIn and your email signature. Prospects pick a slot themselves. Intake form captures their problem before you talk.
Build a branded proposal with scope, milestones, fees and terms. Client signs electronically. The engagement opens automatically when they accept.
Start a timer per activity, log expenses, attach deliverables to the engagement. Pipeline shows where every active engagement sits.
Fixed-fee instalments, T&M invoices, or recurring retainer — set the schedule, GST is calculated, Stripe Pay Now link goes out with the PDF.
Most consultants send a real proposal within 20 minutes of signup
100%
GST-compliant invoicing with your ABN
< 5 min
From proposal accept to engagement live
1
Platform — proposals, time, retainers, CRM
$0
Free plan to start — no card required
Consultant savings calculator
Adjust the numbers below to match your real monthly spend. The total updates live — and so does what you'd save by replacing the lot with OneBookPlus.
Accounting (Xero, MYOB, QuickBooks)
Monthly subscription
Jobs & quotes (Bonsai, HoneyBook, Plutio)
Per-user/mo for trade tools
Website + hosting (Wix, Squarespace)
Builder + hosting bundle
Bookings (Calendly, Acuity)
Separate online booking tool
CRM (HubSpot, Pipedrive)
Customer pipeline tracking
Email marketing (Mailchimp, Klaviyo)
Newsletter + campaigns
Your current stack
$176/mo
= $2,112/year
With OneBookPlus Starter
$29/mo
Replaces everything in the list. One bill.
Free plan available · No card required · Cancel anytime
Scroll through the day from morning to 5pm: the AI receptionist answers and books a missed call, the work runs from the app, the GST invoice is sent on the spot, payment lands and the books balance themselves, a five-star review is requested automatically, and the day closes with the ledger already written.
8:00am
While you're with a client
Riverside Logistics needs a growth strategy and wants to start this month. They call the consultant they found on Google — you.
AI Receptionist
The AI answers in two rings, books an 11:00 am discovery call and emails your intake form — mid-workshop, uninterrupted.
On the discovery call
Client card open: problem statement, budget range, timeline — captured by the intake form before you said a word.
Straight after lunch
Karen accepts the proposal online. The first instalment converts to a GST invoice with a pay link in one tap.
While you're back on delivery
Card payment lands, the books update themselves, and $250.00 GST is set aside for BAS.
Reputation on autopilot
An engagement wrapped last week — the AI asks that client for a review at the right moment. Five stars land.
The day closes itself
An engagement opened, an instalment banked. The book did the rest.
$0
collected
0
admin tasks done by AI
0
evenings lost
Consultant pricing
Start free, upgrade when the engagements justify it. No contracts, no setup fees, no per-seat tax on your associates. Cancel any time.
Free
$0/forever
Send your first proposal today — no credit card.
Starter
$29/mo
Replaces Bonsai + Xero + Calendly + your time tracker.
No card · Drops to Free if you don't upgrade
Growth
$69/mo
For boutiques running associates across multiple workstreams.
Prices in AUD inc. GST. Stripe processing fees apply to card payments (1.7% + 30¢ AU cards). Full plan comparison →
Already on another tool?
Solo consultants are typically operational in a single evening. Export your clients as CSV from your current tool, import them into OneBookPlus, re-send active proposals through the new branded template, and your next invoice fires from OneBookPlus in AUD with GST already calculated.
Switch from
Built-in AI
You're in back-to-back meetings — new enquiries hit voicemail and go cold before you call back.
OneBookPlus
AI Receptionist · incoming call
“I need help with my BAS — can we book a call?”
If you don't answer, the AI books it — Consultation · Wed 11:00am — and texts a confirmation.
Built in Melbourne, AU
ATO-ready from day one
256-bit encryption
No credit card needed
Common questions about practice management software for AU consultants.
Yes. Per engagement, you choose: fixed-fee instalments (e.g. 30% on signing, 40% at mid-point, 30% on completion), T&M (tracked hours + expenses, invoiced monthly), or monthly retainer. The proposal sets the model, the invoicing follows automatically. You can mix models across engagements with the same client.
Honest answer: no. OneBookPlus is the commercial layer of the engagement — proposals, contracts, time, invoicing, retainer schedule, client CRM. It doesn't replace Asana/Linear/Notion for task and deliverable management, and we don't pretend to. Most consultancies keep their delivery tool and use OneBookPlus for the money side of the engagement. The pipeline view tracks engagement status (proposal → in-delivery → invoiced), not individual tasks within the work.
Bonsai/HoneyBook/Plutio are focused freelancer all-in-ones that work well for solo operators on US workflows. OneBookPlus is AU-first: GST is calculated by default, ABNs are validated against the Australian Business Register, BAS export is built in, Stripe Pay Now uses AUD without conversion fees. You also get a proper engagement pipeline (board view), recurring retainer scheduling, and a full client CRM — things the freelancer-first tools tend to keep light.
Yes. Add team members on the Growth plan ($69/month, unlimited team), assign engagements to specific consultants and share matter access across the team. Each team member carries their own billable rate (senior consultant vs junior on the same engagement), with the engagement rate used as a fallback when an individual rate isn't set. Time is logged per team member so you can see who's billable, who's slammed, who has capacity.
Yes. The proposal is a sharable link. The client opens it, reviews scope/milestones/price/terms, taps Accept — the system records the acceptance (with timestamp and IP, treated as electronic signature under the AU Electronic Transactions Act), opens the engagement, and notifies you. You can also enable a deposit payment at accept time so the client signs and pays in one step.
Yes. GST is calculated on every invoice and tracked per quarter. BAS-ready export is built in — hand it to your accountant or lodge directly via your existing portal. Your ABN appears on every quote and invoice. Sub-$75k turnover sole traders can toggle GST off per engagement if not registered.
OneBookPlus runs in the browser and on mobile. You can send a proposal from a hotel lobby, see who's accepted overnight, fire off invoices on the train. Daily revenue, outstanding amounts and the engagement pipeline are all on the home dashboard.
Clients import from a CSV export — every tool gives you one. Outstanding invoices we suggest leaving in the old system to collect; new invoices fire from OneBookPlus from your switchover date so there's a clean line. Active proposals can be re-sent through OneBookPlus to inherit the new branded template and Pay Now flow. Recurring retainer schedules need re-creating (one-time, ~10 minutes per client) but you keep the existing payment authorisation — Stripe lets you migrate the customer record without forcing a re-card. Solo consultants typically operational within 2–3 days; small consultancies 1–2 weeks of overlap.
About the author
Founder & CEO, OneBookPlus
Bishal has over a decade of experience in digital marketing, web development, and small business consulting across Australia. He has worked extensively with Australian consultancies — from solo strategy specialists to small management-consulting boutiques — on proposal workflows, engagement billing and team utilisation.
Consultancies live or die by two numbers: how fast a proposal converts to a signed engagement, and how quickly that engagement converts to paid revenue. Most consultants run on a patched-together stack — Bonsai or HoneyBook for proposals (US-first, GST is an afterthought), Toggl for time, Xero for invoicing, HubSpot for the CRM and Calendly for discovery calls. OneBookPlus collapses that into one platform built AU-first: GST calculated by default, ABN validated against the Australian Business Register, BAS export built in, Stripe Pay Now in AUD without conversion fees.
The platform is designed around the engagement lifecycle. Prospects book a discovery call through your branded booking page — intake fields capture the problem statement and budget range before the call. You send a branded proposal with scope, milestones, fees and terms; the client signs electronically and the engagement opens automatically. As you work, timers log activities per engagement and per team member, with each member carrying their own billable rate (senior vs junior on the same engagement) and the engagement rate as a fallback. Invoicing happens by the model you set at proposal time — fixed-fee milestones, T&M monthly invoices, or recurring retainer. GST-compliant PDFs go out with Pay Now links; automated reminders chase overdue amounts.
The engagement pipeline (board view) shows every active proposal and engagement on one screen: discovery → proposal sent → accepted → in delivery → invoiced → paid. Drag to update status. Conversion rate (proposals sent vs accepted) and average-days-to-pay are on the dashboard. So is your top-client breakdown — with a concentration-risk callout that fires when one client crosses 40% of monthly billings (or your top three exceed 75%), so dependency on a single account becomes visible before they churn.
Sign up for free — no credit card. Add your ABN, GST registration status, hourly rates and service types (strategy, advisory, implementation, retainer support). Import your client list from a CSV or LinkedIn export. Set up your online booking page and drop the link into your email signature. Most consultancies are operational within twenty minutes. The free plan supports up to five active clients with unlimited invoices — enough to test on real engagements before committing.
Join Australian consultants who run their practice on OneBookPlus. Free to start — upgrade when you're ready.
Get Started FreeLast reviewed and updated: by Bishal Shrestha
Authoritative sources
Australian consultants operate under ATO tax and GST rules, the Australian Business Register, electronic-transactions law and accounting standards. We cite the primary bodies for the claims on this page so you can verify directly.
Comparisons
Tools & Apps
Free for solo consultants
60-sec sign-up · No card · GST & BAS ready
Who it's for
From solo specialist to small consultancy — OneBookPlus scales without the legacy-suite price tag.
One-on-one engagements with mid-market clients. Proposals, T&M billing, retainer fallback. Time tracked per engagement, billed monthly.
Implementation work + advisory retainers. Per-project scope, milestone invoicing, recurring monthly support fees.
Small team, multiple workstreams per client. Engagement-level billable rates, per-team-member time tracking and outstanding-receivables visibility on the dashboard.
Niche advisory in a regulated industry — proposals as cost-disclosure templates, retainer billing, full client engagement history.
Stop overpaying
Most small businesses stitch together 4-6 tools that don't talk to each other. Here's what that typically costs.
Real-world scenario
How a Brisbane consultant uses OneBookPlus to run six engagements at once
Marcus opens his dashboard at 8am — three engagements active, two proposals out for signature, $24,800 outstanding (most of it the monthly retainer that drops on the 15th).
First thing: a new prospect booked yesterday via the booking link. Intake form already captured the problem statement, budget range and timeline. Marcus drafts a proposal with three milestones, fixed fee $32,000 + GST, sends it from his phone over coffee. Two hours later it's accepted — engagement opens, first instalment invoice fires automatically, the prospect's already paid the deposit.
Mid-morning, he starts a timer on an existing engagement — 90 minutes of stakeholder interviews, logged to the client. Afternoon, he runs the pipeline view: one engagement is overdue for invoicing, two retainers will auto-fire on the 15th, one engagement is sitting on 'discovery' too long and needs a nudge.
Friday afternoon, he sends invoices for the week's T&M time. Three pay before Monday. The dashboard tells him conversion is 67% this quarter, average days-to-pay is 11, and his top three clients account for 64% of monthly revenue. Worth knowing.
No spreadsheets, no chasing invoices manually, $29/month — replaced four separate tools.
How we compare
How we compare to the tools consultants typically buy.
| Feature | OneBookPlus | Bonsai | HoneyBook | Plutio |
|---|---|---|---|---|
| Proposals with online accept | Yes | Yes | Yes | Yes |
| Time-and-materials invoicing | Yes | Yes |
| No |
| Yes |
| Recurring retainer scheduling | Yes | Yes | Yes | Yes |
| Per-timekeeper billable rates | Yes | No | No | No |
| Engagement pipeline (board) | Yes | No | No | Yes |
| AU GST + ABN validation | Yes | No | No | No |
| Client portal | Yes | Yes | Yes | Yes |
| BAS-ready export | Yes | No | No | No |
| Free plan available | Yes | No | No | No |
| Price | From $0/mo | $25/mo | $36/mo | $30/mo |