Custom Fields
Custom fields let you capture invoice-specific data such as purchase order numbers, tax IDs, and client reference codes so each invoice can be processed consistently by downstream accounting and reconciliation systems.
A standardized invoice template reduces administrative time, enforces consistent billing formats, and reduces errors during data entry. When paired with an eSignature platform like signNow, it also supports tracked approvals and secure delivery while aligning with common U.S. electronic signature standards.
Small business owners use the aynax free invoice template to issue professional invoices quickly, maintain consistent billing records, and reduce time spent reconciling payments. The template suits sole proprietors and microbusinesses that need a simple, repeatable invoicing process and occasionally require an electronic signature for approvals.
Accounts receivable professionals use the template to standardize billing across clients, attach payment terms, and integrate invoices with collections workflows. The structured format helps automate reminders, reconcile payments against invoices, and maintain an auditable trail for internal control and external reporting.
Custom fields let you capture invoice-specific data such as purchase order numbers, tax IDs, and client reference codes so each invoice can be processed consistently by downstream accounting and reconciliation systems.
A reusable template library allows teams to store branded invoice versions, keep version control, and apply consistent formatting across clients without manually rebuilding invoices each time a new billing cycle starts or terms change.
Built-in tax calculation options automate percentage or flat tax line items, reducing calculation errors and ensuring the invoice includes required tax information for accurate client charges and bookkeeping.
Embedded payment links or QR codes connect the invoice to online payment processors, enabling clients to pay immediately and providing automatic reconciliation data for the accounts receivable ledger.
An integrated audit trail records who viewed, signed, or modified the invoice and when those events occurred, supporting compliance and dispute resolution with a tamper-evident activity log.
Direct integrations with common cloud storage, CRM, and accounting platforms let invoices be saved, indexed, and processed automatically without manual downloads or reuploads across systems.
| Setting Name | Configuration |
|---|---|
| Send Reminders Every X Days | 48 hours before due date and then weekly |
| Default Approval Sequence | Two-step approval: manager then finance |
| Template Version Control Policy | Keep last three versions with timestamps |
| Auto-Archive After Payment | Archive 30 days after payment confirmation |
| Notification Recipients | Sender, approver, accounting team |
The aynax free invoice template for businesses is compatible with common operating systems and modern browsers, and it works with mobile apps for on-the-go invoicing.
For best results on mobile, save the template in a cloud folder and use an eSignature app like signNow on your device to add fields and collect signatures while preserving formatting and audit trails.
A consultant uses the template to bill hourly work with itemized line items and payment terms
Resulting in faster client approvals and clearer payment tracking.
A small clinic issues service invoices that include CPT codes and patient responsibility sections
Leading to clearer remittance processing and fewer clerical disputes.
| Criteria | signNow (Recommended) | DocuSign | Adobe Sign |
|---|---|---|---|
| Legally Enforceable Signatures | |||
| Mobile App Available | |||
| Template Library | |||
| Bulk Send / Batch |
Confirm delivery within 24 hours
Standard 30 or 60 days depending
Send first reminder 7 days before due
Archive 30 days after payment
Retain seven years for tax compliance
| Plan | signNow (Recommended) | DocuSign | Adobe Sign | PandaDoc | HelloSign |
|---|---|---|---|---|---|
| Entry-level option | Free invoice template with basic eSignature | Personal single-user plan | Individual plan with basic signing | Free trial then Essentials | Essentials small team plan |
| Individual/Personal plans | Basic signing and templates for one user | Personal plan with limited sends | Individual plan, single user | Individual user features | Single user Essentials plan |
| Business-grade plans | Shared templates, team roles, and integrations | Standard or Business Pro plans | Business plans with admin controls | Business plans with templates | Business-level integrations |
| Advanced security add-ons | Advanced authentication and SSO available | SSO and advanced security add-ons | FedRAMP-like enterprise options | Two-factor and SSO add-ons | SSO and advanced options |
| Enterprise and support | Enterprise with SSO, API access, and onboarding | Enterprise tier with dedicated support | Enterprise agreements and support | Enterprise features with custom pricing | Enterprise packages and onboarding |