You don’t need a software budget to run a real business by yourself. Between free tiers from Wave, HubSpot, Calendly, Canva, and a handful of others, a solo operator can invoice clients, manage leads, schedule calls, design marketing assets, and email a list — all without a subscription.
Table of Contents
The catch is that free plans have gotten stingier over the past couple of years, and picking the wrong one means migrating your data later. This guide lays out a free stack that actually works in 2026, what each tool’s free tier really includes, and where you’ll hit a wall and need to pay.
Quick Answer
Cover the core functions of a one-person business — invoicing/accounting (Wave), a CRM (HubSpot Free), email marketing (Brevo), scheduling (Calendly), task tracking (Trello or Notion), design (Canva), and communication (Slack + Zoom) — using each tool’s free tier. Add a payment processor like Stripe or PayPal, which charge only per-transaction fees, not a monthly cost. This combination handles the full client lifecycle from lead to invoice without a software bill.
Build Your Free Stack by Function
Invoicing and bookkeeping: Wave’s free Starter plan covers unlimited invoicing, income and expense tracking, and basic reporting at no cost, though it’s built for US and Canadian businesses — automatic bank feeds and receipt scanning now sit behind Wave’s $16/month Pro plan. Pair it with Stripe or PayPal for accepting card payments; both only charge a per-transaction fee, so there’s no monthly cost if you’re not processing anything yet.
Customer relationship management: HubSpot’s free CRM gives a solo user up to 1,000 contacts, two seats, one deal pipeline, and 2,000 marketing emails a month, plus Gmail/Outlook integration and a basic website chat widget. It carries HubSpot branding and doesn’t include automated workflows on newer free accounts, but it’s enough to track every lead and deal until you outgrow it.
Email marketing: Mailchimp’s free tier has shrunk to 250 contacts and 500 sends a month, which is tight for anyone actively growing a list. Brevo (formerly Sendinblue) is the more generous option for a solo business — its free plan allows unlimited contacts and 300 emails per day (roughly 9,000 a month), plus a built-in CRM and transactional email.
Scheduling: Calendly’s free plan gives you one bookable event type, one connected calendar, and unlimited bookings, with Zoom/Teams/Meet integration built in. That’s enough for a simple “book a call” link; you’ll need a paid seat only if you want multiple event types, SMS reminders, or payment collection at booking.
Design and marketing assets: Canva’s free plan includes the full drag-and-drop editor, hundreds of thousands of templates, a stock photo/icon library, and 5GB of storage — enough to design social posts, invoices, and simple graphics without a designer.
Handle Projects, Docs, and Communication for Free
Task and project tracking: Trello’s free plan supports up to 10 boards per workspace, 10 collaborators, and 250 automated “Butler” runs a month — plenty for a solo operator managing client work. If you’d rather have one flexible workspace for notes, docs, and databases, Notion’s free plan gives a single user unlimited pages and blocks (the 1,000-block cap only kicks in once a workspace has two or more members).
Documents and storage: A free Google account includes 15GB of storage shared across Gmail, Drive, and Photos — note that in 2026 new accounts start with 5GB until you verify a phone number, which then unlocks the full 15GB. Files created directly in Docs, Sheets, and Slides don’t count against that quota, so keeping working documents native to Google Drive stretches the free storage further.
Client and team communication: Zoom’s free Basic plan caps every meeting at 40 minutes — group calls and one-on-one calls alike, since Zoom removed the old unlimited 1:1 exception in 2022. Only a paid host plan removes that cap (stretching meetings up to 30 hours); attendees can stay on Basic and still inherit the longer duration. For longer client calls on a free account, either restart the meeting when it cuts off or move the call to a tool without that cap. Slack’s free plan retains 90 days of searchable message history and supports up to 10 connected apps, which covers solo use or a small circle of contractors.
Tips and Common Mistakes
Pick one tool per function and commit — the biggest time-waster in a free stack is running two half-configured CRMs or two task managers because you never migrated fully off the first one.
Watch the numbers that actually gate you: HubSpot’s 1,000-contact and 2,000-email caps, Mailchimp’s 250-contact limit, Trello’s 10-collaborator ceiling, and Zoom’s 40-minute meeting cutoff. Check these against your real usage before you build a workflow around a tool, not after you hit the wall mid-call.
Free plans change their limits often — several of the tools above (Mailchimp, HubSpot, Zoom, Google storage) tightened their free tiers within the past few years. Revisit your stack every few months rather than assuming today’s limits are permanent.
Don’t confuse Wave’s country restriction for a dealbreaker if you’re outside the US or Canada — but do confirm it before building your invoicing workflow around it, since new sign-ups outside those countries aren’t supported.
Use native integrations instead of paid connector tools where you can: Calendly’s built-in Zoom/Meet sync and HubSpot’s Gmail integration remove the need for a paid automation platform in a lot of solo workflows.
Explore more: Business guides and resources.
Free SaaS tools for a one-person business FAQs
Can I really run an entire business without paying for any software?
Yes, for the early stage. Free tiers from Wave, HubSpot, Calendly, Canva, Brevo, and Trello/Notion cover invoicing, CRM, scheduling, design, email, and task tracking. You’ll likely outgrow at least one free limit (contacts, users, or automation runs) as the business grows, at which point upgrading just that one tool is usually cheaper than rebuilding a whole paid stack.
What’s the first free tool limit a solo business usually hits?
Email marketing contact caps tend to bite first, since Mailchimp’s free plan is now capped at 250 contacts. Brevo’s free tier (unlimited contacts, 300 emails/day) buys more runway before you need to pay for email. Zoom’s 40-minute meeting cap is the other one people hit almost immediately, since it applies to every call, including one-on-ones, with no free-tier exception.
Do I need a business bank account to use these free tools?
Not to start. Stripe and PayPal can process payments to a personal account while you’re testing, and Wave’s free plan works without connected bank feeds — you’d just enter transactions manually until you upgrade or open a business account.
Is a free CRM good enough, or should I just use a spreadsheet?
For under a few hundred contacts, HubSpot’s free CRM is worth using over a spreadsheet — it adds email tracking, deal stages, and Gmail/Outlook sync at no cost. A spreadsheet only makes sense if you have a handful of clients and no interest in tracking a sales pipeline.
Make Your Digital Life Better
More practical tech how-tos, tool picks, and guides to upgrade your everyday digital life. More on GTWebs.
Want web tips in your inbox? Subscribe to the free newsletter.
Photo by Major Tom Agency on Unsplash.