Commercial documents, payment, and global compliance

Billing becomes stronger when quotes, invoices, payments, and accounting stay connected.

Simple CRM treats billing as an operational continuity layer, not a back-office afterthought. With optional Simple ERP, companies can move from quote to order to invoice without rework, add CPQ logic for complex pricing, automate payment reminders, collaborate with accountants through a secure extranet, and prepare for international e-invoicing requirements across multiple countries.

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Simple ERP is an optional module that covers commercial documents, online invoicing, and electronic invoice workflows without forcing every customer into a larger ERP scope.
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CPQ, payments, reminders, SEPA flows, and accountant access all stay connected to the same client and commercial history.
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For multi-country organisations, Taxilla adds a strong layer of international e-invoicing and indirect tax compliance capability.

Request a billing demo Explore the billing stack

Simple ERP

Simple CPQ

Simple Paiement

Simple Number

Taxilla compliance

Optional Simple ERP: commercial documents without the weight of a forced ERP rollout

The billing offer is strongest when presented with the right nuance: Simple ERP is optional, not a mandatory layer. It gives companies a flexible commercial-document environment inside Simple CRM, where quotes, orders, pro forma invoices, invoices, electronic invoice registers, and delivery notes can be created automatically and transformed from one stage to the next without re-entry or loss of time.

DOC

Automatic document creation

Create quotes, purchase orders, pro forma invoices, invoices, electronic invoice registers, and delivery notes from the same commercial logic.

FLOW

Document continuity

Move a quote into an order, then an invoice, then a delivery note while preserving products and services automatically across steps.

MULTI

Multi-company logic

When several companies use the same environment, the issuing entity can be selected for each document flow.

PDF

Operationally ready output

Issued documents are available as PDF while staying connected to the wider commercial record and process trail.

Less re-entryCommercial teams avoid recreating the same information at each document stage.

More continuityBilling remains attached to the customer context and the sales history.

More controlManagers can read document status as part of the operating flow rather than as isolated paperwork.

More flexibilitySimple ERP is there when needed, without imposing an ERP-first mindset on every customer.

Quote created with configured pricing and validation logic.

Quote converted to order and pro forma invoice without retyping line items.

Invoice sent with payment link and reminder schedule activated.

Simple CPQ

Configure, price, quote — for simple offers and complex proposals alike

Simple CPQ is the quoting intelligence layer of the billing stack. It is designed to help teams create coherent quotes more quickly while respecting product logic, price rules, discount conditions, and validation stages. This matters especially for more complex sales environments where quoting quality directly affects margin, credibility, and cycle time.

CFG

Configure with disciplineBuild quotes that reflect the actual products, services, and commercial policies your organisation wants to sell.

PRC

Flexible pricing and discountsSupport promotions, discount logic, and adaptable pricing scenarios without losing commercial consistency.

VAL

Validation-aware proposalsKeep quote creation, sending, and approval inside a readable process rather than in isolated files and emails.

Simple Paiement

Payment and invoicing that reduce friction after the sale

Simple Paiement extends billing into cash collection and treasury discipline. The source page presents it not only as a payment tool, but as a practical online invoicing and recovery system, with reminder planning, automated reminders, payment links, late-payment handling, and risk alerts. This makes it a strong continuation of the commercial process rather than an isolated payments add-on.

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The right premium framing

Billing does not stop when the invoice is sent. It stops when the payment is actually controlled. Simple Paiement keeps that last mile readable and manageable.

Reminder schedules

Build reminder plans and automate outgoing messages instead of handling overdue follow-up manually each time.

Payment links and fees

Send payment requests with direct links and include payment-related fees when the business model requires it.

Late-payment alerts

Use alerts and manual-launch reports to prevent unpaid invoices from becoming a silent treasury problem.

Mollie and SEPA flows

The public documentation references Mollie activation and SEPA direct debit support for payment operations.

Simple Number

A secure accountant extranet that respects operational continuity

Simple Number brings accountants and auditors into the billing flow without forcing the company to export everything manually each time. The extranet gives direct access to sales and, if necessary, purchase invoices in a secure environment with advanced encrypted communications, and supports export toward accounting software through CSV-type files such as CODA, CODABOX, or UBL. Specific export modules can also be developed when needed.

ACC

Direct accountant access

Your accountant or statutory auditor can connect directly to the dedicated extranet instead of depending on ad hoc data handovers.

EXP

Sales and purchase export

Export sales invoices and, where required, purchase invoices so accounting systems can ingest the relevant flows more easily.

FMT

Accounting-compatible formats

Support import logic compatible with CODA, CODABOX, and UBL-style flows to reduce reconciliation friction.

DEV

Specific export development

When a company needs a dedicated export logic, the SIMPL team can build a paid custom module for that purpose.

International e-invoicing with Taxilla

Multi-country billing readiness for companies operating across borders

Taxilla is as a global e-invoicing and financial operations platform that supports multi-country compliance, multi-format invoice delivery, and connection to business partners and tax authorities. Its material highlights one API across jurisdictions, configurable data pipelines, support for PEPPOL and EN16931 in Belgium, and broader indirect-tax and e-invoicing coverage across 40+ and even 60+ jurisdictions depending on the product layer described.

PEP

PEPPOL and EN16931 readinessTaxilla explicitly addresses Belgium’s PEPPOL and EN16931/BIS Billing 3.0 requirements, which is strategically useful for EU-facing billing.

API

One integration, many mandatesTaxilla positions its e-invoicing layer as a single integration point able to scale across jurisdictions rather than requiring country-by-country tool patchwork.

VAT

Indirect tax and audit readinessIts broader platform language includes VAT/GST automation, audit traceability, rules engines, and compliance dashboards that are especially attractive to multinational groups.

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The strategic message for international buyers

Simple CRM remains the operational workspace. Taxilla strengthens the international compliance edge for companies that must invoice across borders, deal with multiple e-invoicing mandates, and keep finance operations aligned with local and international requirements.

Why this fits the brand

Billing becomes method, continuity, and international readiness

This page works best when it stays faithful to the Simple CRM pillars. Simplicity means fewer duplicate entries across quote, order, invoice, and payment steps. Boldness means refusing fragmented financial toolchains when one connected flow is possible. Experience means anticipating the accounting, payment, and compliance consequences of each commercial document. Premium means giving leaders a billing stack they can trust enough to stop worrying about routine friction every day.

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Simple ERP stays optional

The company is free to activate more billing depth without being forced into a heavy ERP-first identity.

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CPQ and payment stay connected

Configuration, pricing, invoicing, reminders, and collection all remain attached to the same customer and sales context.

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Taxilla adds global compliance leverage

For multi-country companies, the combination of Simple CRM and Taxilla becomes especially compelling because it links business execution to international e-invoicing realities.

The best billing systems do not just issue invoices. They connect pricing, documents, payment, accounting, and compliance.

That is the Simple CRM approach: optional Simple ERP, strong CPQ logic, online payment discipline, secure accountant collaboration, and multi-country e-invoicing readiness for international companies.

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