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Fiverr Pro
English
$
USD
I will build an ai proposal and invoice generator with n8n
Toby
About this gig
Stop spending your evenings formatting proposals and chasing invoices. I build an AI system that turns a client name and project type into a fully drafted proposal and matching invoice, automatically, so you can send professional documents in minutes instead of hours.
What you get:
- Simple intake: enter client name + project type (form or Sheet row)
- GPT drafts a custom proposal based on your services and pricing
- n8n auto-generates a formatted Google Doc, then exports to PDF
- Sends the proposal (and invoice) straight from your Gmail
- Every client and document logged automatically in Google Sheets
Built in n8n so you own the workflow: no monthly SaaS subscription, no generic templates. It's trained on your actual business language and pricing structure.
Perfect for freelancers, agencies, and consultants who want to look polished without doing the admin work themselves.
Tell me your services and typical proposal structure, and I'll scope the build before you order.
quote generator | ai invoicing | pdf proposal | proposal generator | invoice automation | agency proposal | freelance automation | client proposal ai | automated invoicing | gpt proposal | n8n automation | proposal automation
Get to know Toby
Toby
n8n Workflow Automation and API Integration Specialist
- FromUnited Kingdom
- Member sinceJul 2026
- Avg. response time3 hours
Languages
English, Spanish, French, German
I'm an n8n automation specialist helping businesses eliminate repetitive manual work. I design and build custom workflows that connect your apps, CRMs, Slack, Google Sheets, email, payment platforms, and more, using n8n, webhooks, and REST APIs. Whether you need to automate lead capture, sync data between tools, trigger notifications, or build a multi-step business process, I turn it into a reliable, self-running workflow. I've worked with startups and small businesses to cut hours of manual data entry down to zero. Let's talk about what's eating up your team's time, and I will automate it.
My Portfolio
FAQ
Will the proposals sound like my business, not a generic template?
Yes — I train the GPT prompt on your actual services, tone, and pricing structure during setup, not a one-size-fits-all script.
Can I add my logo and branding to the documents?
Yes, your logo and brand colors are built into the Google Doc template from the Basic package up.
Does the invoice connect to a payment processor?
Not by default, it generates a formatted invoice PDF. Stripe or PayPal payment links can be added as a custom add-on if you need that.
What if I have multiple service types or pricing tiers?
No problem, tell me your service menu during setup and the GPT prompt will draft the right proposal for each type.
Can it handle different currencies?
Yes, just tell me your default currency (or currencies, if you bill internationally) during setup.
How does it know when to send a follow-up reminder?
The Premium package tracks document status in Sheets and triggers a reminder automatically if a proposal is unsigned or invoice unpaid after a set number of days.
Do I need any paid software besides what's listed?
No, n8n, Google Docs, Gmail, and Sheets all have free tiers sufficient for this build. GPT usage requires your own OpenAI API key.
Can this work for retainer or recurring invoices, not just one-off projects?
Yes, that's a small scope adjustment, mention it in your requirements and I'll build the logic in.
