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For solo contractors, start with free tools: Google Calendar for scheduling, Wave for invoicing, and Google Sheets for quotes. When you are ready to pay, Jobber Core at $39 per month replaces all three. Do not spend more than $50 per month on software until you hit $200K in revenue.
What Solo Contractors Actually Need
When you work alone, you need four things from software:
- A schedule you can check from your phone. You need to know where you are going tomorrow.
- A way to send quotes. Customers expect a professional estimate, not a text message with a number.
- A way to send invoices. You need to get paid on time. Paper invoices get lost.
- A place to track customers. Who did you work for last month? What did you charge? You need to find this fast.
That is it. You do not need a CRM with pipeline views. You do not need dispatch software. You do not need marketing automation. Keep it simple.
The Free Stack: $0 Per Month
You can run a solo contracting business on free tools. Many contractors do this until they pass $100K in revenue.
Google Calendar for scheduling. Create a separate calendar for work. Color-code by job type. Set reminders for the night before. It syncs to your phone and works offline.
Wave for invoicing. Wave is completely free. You can create professional invoices, accept online payments, and track what is paid and what is not. It also handles basic bookkeeping.
Google Sheets for quotes. Build one estimate template. Copy it for each new job. Save each quote as a PDF and email it to the customer.
Workiz free plan for phone tracking. Workiz gives you a business phone number for free. It logs calls and texts so you do not mix work with personal calls.
Google Drive for photos. Create a folder for each job. Take photos with your phone. They upload automatically if you set up Google Photos backup.
This stack is not fancy. But it works. The total cost is zero dollars. For more free options, see our free contractor software guide.
The $50 Per Month Stack
When free tools start slowing you down, one paid tool replaces them all.
Jobber Core is the best first paid tool for solo contractors. At $39 per month, it handles scheduling, quoting, invoicing, and payments. Your customers get a client portal where they can approve quotes and pay invoices online.
With Jobber, you replace Google Calendar, Google Sheets, and Wave with one tool. Everything connects. When a customer approves a quote, it becomes a job on your schedule. When the job is done, it becomes an invoice. No re-entering data.
The mobile app is excellent. You can create a quote on site, schedule a job, and send an invoice from your truck. This saves hours every week.
Scheduling: Keep It Simple
As a solo contractor, your schedule is simple. You do one or two jobs per day. You do not need drag-and-drop dispatch boards or route optimization.
Free option: Google Calendar. Set up a "Work" calendar. Add each job with the address, customer name, and phone number. Set a reminder for 7 AM the morning of.
Paid option: Jobber. See your jobs on a calendar or map view. Get driving directions. Customers get an automatic text when you are on the way.
Do not buy a scheduling tool with features built for 10-person crews. You will pay for features you never use.
Invoicing: Get Paid Faster
Late invoicing is the biggest cash flow mistake solo contractors make. You finish a job on Friday. You send the invoice the next Wednesday. The customer pays two weeks later. That is three weeks of float you do not need.
Free option: Wave. Send invoices the same day you finish. Accept credit card and bank payments online. Wave takes a small processing fee, but the platform itself is free.
Paid option: Jobber. Send the invoice from your phone before you leave the jobsite. Customers pay online through the client portal. You get paid in 1 to 2 business days.
Either way, the rule is the same: invoice on the day you finish the job. Do not wait.
Quotes and Estimates
Free option: Build a Google Sheets template with your logo, line items, and total. Copy it for each job. Export as PDF and email it.
Paid option: Jobber lets you create quotes from your phone with saved line items and pricing. The customer gets a link to approve the quote online with one click.
Professional quotes close more jobs. A PDF with your logo and clear pricing looks better than a text message that says "I can do it for $800." Take the time to make your quotes look good.
When to Upgrade
You do not need to stay on free tools forever. Here are the signs it is time to move to Jobber or another paid tool.
- You are doing more than 15 jobs per month. Free tools get messy at this volume.
- You hire your first helper. Now two people need access to the schedule. Shared spreadsheets cause confusion.
- You lose a lead because you forgot to follow up. That lost job cost more than a year of software.
- You spend more than 5 hours a week on admin. That time is better spent doing billable work.
When you are ready for more, check our guide on switching from spreadsheets to a CRM. It walks you through the migration step by step.
For a full picture of what to spend at each stage of growth, read our contractor software cost guide.
Solo contractors do not need expensive software. Start with free tools (Google Calendar, Wave, Google Sheets). When free tools slow you down, switch to Jobber Core at $39 per month. Do not spend more than $50 per month until you pass $200K in revenue. The best tool is the one you actually use every day.