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.

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This guide walks through the eight categories every small business actually needs — website, email, accounting, CRM, payments, scheduling, communication, and design — and prices out a real stack that stays under $100 a month, with current 2026 pricing for each pick.

Quick Answer

You can run a complete small business tech stack — website and hosting, business email, accounting, a CRM, payment processing, scheduling, team chat, and design tools — for roughly $60–$90 a month by pairing a couple of essential paid tools (email and hosting) with free tiers of Wave, HubSpot CRM, Slack, Trello, and Calendly.

The 8 Categories Every Small Business Stack Needs

Website and hosting: A basic Squarespace plan runs about $16/month billed annually and includes hosting, a template, and SSL — you can also go cheaper with WordPress on budget hosting, but Squarespace saves setup time. Pair it with a domain name, which typically costs somewhere in the $10–$20/year range regardless of registrar, so budget roughly $1–$2/month.

Business email and productivity: Google Workspace Business Starter is about $7/user/month on an annual plan (around $8.40/month if billed monthly) and gets you a professional @yourdomain.com inbox, shared calendar, and pooled cloud storage — worth it over a free Gmail address for credibility alone.

Accounting: Wave’s Starter plan is free and covers unlimited invoicing, expense tracking, and bookkeeping records — and reconciliation isn’t locked behind a paywall, either. On the free tier you import bank and credit card statements manually via CSV and match transactions yourself. Wave Pro (around $19/month, cheaper if billed annually) doesn’t add reconciliation — it adds a live, automatic bank feed via Plaid so transactions import and get categorized without manual CSV uploads, plus support for multiple users and lower payment-processing rates. Most very small businesses can start on the free tier and only upgrade once the manual CSV workflow becomes a time drain.

CRM: HubSpot’s free CRM plan is genuinely usable for up to two users and includes contact management, deal tracking, and basic email tools — no monthly fee. It carries HubSpot branding on forms and emails until you upgrade to Starter (about $20/month), which most businesses can live without at the start.

Payments: Square’s free plan has no monthly subscription — you only pay processing fees per transaction (roughly the 2–3%-plus-flat-fee range typical of card processors). It’s the simplest way to accept cards without committing to a fixed monthly cost.

Scheduling: Calendly’s free plan covers one event type and one connected calendar, which is enough for a single-service booking page. If you need multiple meeting types or automated reminders, Standard runs about $10/seat/month.

Team communication and task tracking: Slack’s free plan (limited searchable message history, direct messages, and huddles) and Trello’s free plan (a capped number of boards, unlimited cards) cover most small teams without paying anything.

Design: Canva Pro is about $12–$15/month billed annually and covers social graphics, presentations, and basic brand kits — the free version of Canva is often enough if you don’t need premium templates or background removal.

A Sample Stack That Stays Under $100/Month

Putting it together for a one-to-three person business: domain (~$1–$2), Google Workspace Business Starter (~$7), Squarespace Basic (~$16), Canva Pro (~$12), and everything else — Wave, HubSpot CRM, Slack, Trello, Calendly, Square — on their free tiers. That lands around $35–$40/month, leaving plenty of headroom under the $100 budget to add a paid scheduling tier, email marketing, or a second Workspace seat as the business grows.

Because payment processing and some accounting features scale with usage rather than a flat fee, your actual monthly bill will move a little with sales volume — but the fixed subscription core rarely needs to break $50/month for a business just getting off the ground.

Tips / Common Mistakes

Bill annually where you can. Most of these tools charge more on month-to-month billing, and the annual discount is one of the easiest ways to stay under budget.

Don’t pay for a CRM, project board, or team chat tool before you’ve outgrown the free tier — HubSpot, Trello, and Slack’s free plans cover a solo operator or small team longer than most people expect.

Watch transaction-fee tools like Square: they look free on paper, but fees add up fast at higher sales volume, so re-check whether a paid plan with lower per-transaction rates would save money once you’re processing consistently.

Cancel the tools you demoed and forgot about. The fastest way to blow past $100/month isn’t any single subscription — it’s three unused trials that quietly converted to paid plans.

Explore more: more small business guides.

Small business tech stack FAQs

Do I really need to pay for a CRM as a small business?

No. HubSpot’s free CRM plan supports up to two users with contact and deal tracking at no cost — it’s enough for most businesses until you need more seats or want to remove HubSpot branding.

Is Wave accounting software actually free?

Yes — the Starter plan is free for unlimited invoicing, expense tracking, and bookkeeping. It also supports bank reconciliation on the free tier: you import bank and credit card statements manually via CSV and match transactions yourself. That capability isn’t gated behind the paid tier — Wave Pro (around $19/month) instead adds a live, automatic bank feed via Plaid, support for multiple users, and lower payment-processing rates.

What’s the cheapest way to accept card payments?

Square’s free plan has no monthly fee — you only pay a per-transaction processing rate (check Square’s current published rates, since card-processing fees change over time).

Make Your Digital Life Better

More practical tech how-tos, tool picks, and guides to upgrade your everyday digital life. More on GTWebs.

Images: Squarespace.

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