Invoicing without another subscription.

Most invoicing tools are services you sign up for: another account, another monthly fee, your client list on someone else's servers. Invoice Manager is different. It's a free add-on that turns one Google Sheet™ into a complete invoice generator, client database, and payment tracker you own. There's no account to create and no subscription to cancel later.

If you invoice clients, you know the dance: copy last month's file, fix the invoice number, export, attach, send, then lose track of who's paid. Here, you add a row, check a box, and a professional PDF invoice lands in your Google Drive™, ready to send. Color-coded statuses show who's paid and who's overdue at a glance.

WHO IT'S FOR

• Freelancers and contractors
• Consultants, designers, and creative studios
• Any small business that invoices by email and doesn't want accounting software
• Anyone tired of paying monthly for simple billing

KEY FEATURES

• Auto-numbered invoices — the add-on detects your existing format and continues it
• Professional PDF invoices — a clean invoice template with your business details, saved to Google Drive™ and shared with your client automatically
• One-click Gmail™ compose — pre-filled with your client's email, subject line, and PDF link
• Client database — enter details once, reuse them on every invoice
• Status tracking — color-coded rows for Draft, Sent, Paid, and Overdue
• Auto overdue detection — invoices past their due date flag themselves
• Email templates — customize the subject and body with placeholders that fill in per invoice
• Catch-up mode — Generate All Missing PDFs creates every invoice you haven't exported yet
• Customizable settings — your business name, tax rate, currency symbol, payment terms, and footer note

YOUR DATA STAYS WITH YOU

Everything lives in your Google account. No external servers, no separate login, nothing to sync. Uninstall any time; your spreadsheet and every PDF invoice stay in your Google Drive™.

PRICING

Free. All features included. No trial period, no locked tiers.

GETTING STARTED

Install the add-on, open any spreadsheet, and go to Extensions → Invoice Manager for Sheets™ → Set Up New Sheet. Three tabs are created automatically: Invoice Tracking, Client Database, and Settings. Fill in your business details and your first invoice is about two minutes away.

SUPPORT FROM A PERSON

Invoice Manager is built and supported by Marinette. Questions answered at getmarinette.com/invoice-manager, or email support@getmarinette.com. A real person reads every message and will try to get back to you within 1 business day.

Google Sheets™, Google Drive™, and Gmail™ are trademarks of Google LLC. Invoice Manager for Sheets™ is an independent application and is not affiliated with, sponsored by, or endorsed by Google LLC.