Finance & Accounting · Forms

Invoice Submission Form for Contractors & Vendors

Build a professional invoice submission form with Attain OS. Atty drafts it, you review. Perfect for contractor portals and vendor billing workflows.

Managing invoice submissions from contractors and vendors is a daily grind for many finance teams. You need a systematic way for external parties to submit billing details, attach receipts, and provide project references — all without endless email threads.

Attain OS lets you build a dedicated Invoice Submission form that replaces scattered spreadsheets and manual processes. With Atty, the built-in AI agent, you can draft the form in minutes, then publish it for your vendors to use. No integrations, no syncing — just a clean, self-contained portal.

Real-world scenarios

When to reach for a invoice submission

Construction Subcontractor Invoicing

A general contractor needs monthly invoices from 20+ subcontractors. Each must include job site, PO number, and lien waivers. With Attain OS, the finance manager creates an Invoice Submission form that collects all required fields. Subcontractors fill it out directly, and the team reviews submissions in the Forms app.

Freelancer Monthly Billing

A marketing agency has 50 freelancers submitting invoices for retainer work. The form captures hours worked, project code, and payment terms. Atty drafts the form based on the agency's typical billing structure, and the admin tweaks it before sharing the link.

Vendor Invoice Portal for Small Business

A boutique retailer receives invoices from 10+ suppliers for inventory and services. The owner creates an Invoice Submission form that asks for vendor name, invoice date, line items, and total amount. The data stays in Attain OS, easy to reference during reconciliation.

With Atty

How Atty gets you to a near-finished draft faster

  1. 1
    Define the Invoice Submission Form

    Open Attain OS and navigate to the Forms app. Use the 'New Form' option and describe your need: 'Invoice submission form for contractors with fields for company name, contact email, invoice number, invoice date, total amount, project reference, and an attachment for the PDF invoice.'

  2. 2
    Atty Drafts the Form

    Atty generates a complete form with all fields, validation, and a clean layout. The draft includes text inputs, date picker, number field, file upload, and a submit button. You see a preview instantly.

  3. 3
    Review and Customize

    Check each field: adjust labels, mark required fields, add help text like 'Upload PDF invoice only.' You can reorder fields or add optional notes. Atty's draft is a starting point — you have full control.

  4. 4
    Publish and Share

    Once satisfied, publish the form. Attain OS gives you a unique URL to share with vendors via email or WhatsApp. Submissions land in the Forms inbox, where you can review, export, or link to other apps like Budgets or Reconciliations.

Sample output

What you walk away with

A close-to-finished draft — not a blank page. Here's the kind of result the flow hands you, ready to review, tweak, and publish.

Invoice Submission · form

Use this form to submit your invoice for payment. Please complete all required fields and attach the invoice PDF. Incomplete submissions may be delayed.

Your registered business name.
Email for invoice confirmation.
Unique invoice number from your system.
Enter numeric value, e.g., 1500.00.
Job code or project name if applicable.
Attach the invoice document (PDF).
Key takeaways
  • Attain OS provides a dedicated Invoice Submission form that replaces scattered email threads and spreadsheets.
  • Atty drafts the form quickly based on your description; you review and publish — no coding required.
  • Vendors submit via a simple web form; you manage all data inside Attain OS without third-party integrations.
FAQ

Frequently asked questions

Can vendors submit invoices without an Attain OS account?

Yes, the form is accessible via a public link. Vendors do not need an account — they just fill and submit. You manage all submissions in your Attain OS workspace.

How do I handle attachments like receipts or PDFs?

The form includes a file upload field. Vendors can attach PDFs or images. Submissions are stored in Attain OS, and you can view or download attachments from the Forms inbox.

Can I set rules like 'invoice number must be unique'?

Currently, the form captures data but does not auto-validate uniqueness. You can manually review submissions in the Forms app and flag duplicates. Atty can help draft validation hints in field help text.

Is there a way to track payment status of submitted invoices?

The form captures submission data. You can link it to the Budgets or Reconciliations app for tracking. Atty can help you create a status field (e.g., pending, approved, paid) in a custom record view.

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