Finance & Accounting Tech

Automated Invoicing & Accounting Systems for Growing Businesses

Take total command over company finances: From audit-proof GoBD invoice generation to automated bank feed reconciliation, multi-tier dunning, and 1-click DATEV exports for your tax consultant—all in one streamlined platform.

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Invoicing & Accounting - Nexa Solutions
Invoicing & Accounting
Engineered by Nexa Solutions
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OPERATIONAL CHALLENGES

Key Challenges Resolved by Invoicing & Accounting

Without tailored digital architectures, manual processes and generic tools quickly create critical bottlenecks.

01

Payment Delays & Working Capital Strains

Invoices are sent out late, incoming wires are not tracked in real time, and payment reminders fall behind due to busy schedules.

02

Strict German GoBD Audit Regulations

German tax law strictly mandates immutable, audit-proof invoice records—creating invoices in Word or Excel risks severe audit penalties.

03

Exhausting Manual Bank Reconciliation

Accounting staff spend hours cross-referencing bank statements against invoices to determine who has settled their account.

04

Expensive Tax Consultant Staging Costs

Without direct DATEV-compliant exports, tax advisors must bill high hourly fees for manual bookkeeping pre-sorting.

OUR SOLUTION

Our Solution: An Audit-Proof Financial & Invoicing Engine

A tailored software system that generates invoices in seconds, reconciles payments automatically, and streamlines tax compliance.

100% GoBD-compliant invoicing with immutable audit logs, sequential numbering, and digital archive preservation
Live bank reconciliation via FinTS / EBICS: Automatically detects incoming wires and marks invoices settled
Multi-tier dunning engine with automated payment reminders and legally calculated interest charges
Standardized 1-click DATEV export (EXTF / CSV) for frictionless handoffs to your tax consultant
FEATURE HIGHLIGHTS

Key Capabilities & Architectural Modules

Every module is engineered to your operational scale and maintained with performance-first code.

01Compliance

Audit-Proof GoBD Invoicing

Generate compliant invoices, progress billings, credit notes, and cancellation records with immutable PDF archives.

02Banking

Automated Bank Reconciliation

Direct connection to your business accounts: matches wire transfers against invoices by IBAN and reference text.

03Billing

Recurring Billing & Retainers

Monthly maintenance contracts and recurring subscriptions generate and dispatch automatically on schedule.

04Receivables

Automated Multi-Stage Dunning

Configurable friendly reminder, first notice, and final demand sequences with automated late fees and interest tracking.

05DATEV Ready

1-Click DATEV Export

Download pre-assigned accounting batches and attached PDF receipts directly formatted for German tax consultants.

06Expenses

Expense Capture & OCR Processing

Scan vendor receipts and bills: optical character recognition extracts line items, VAT rates, and IBANs instantly.

BUSINESS BENEFITS

Tangible Advantages for Your Organization

Clear outcomes: Boosted operational speed, diminished overhead, and heightened customer trust.

Up to 3x Faster Cash Collection

Automated reminder sequences and 1-click online payment links dramatically compress Days Sales Outstanding (DSO).

100% Tax Audit Defense (GoBD)

Meet all German tax authority standards with immutable versioning—eliminating the risk of audit penalties.

Lower Monthly Accounting Advisory Fees

Cleanly staged DATEV batches eliminate manual bookkeeping hours billed by your external tax consultant.

Real-Time Cash Flow & Margin Visibility

Know exactly what liquidity is available, monitor pending receivables, and estimate quarterly tax obligations on demand.

IMPLEMENTATION WORKFLOW

From Discovery to Production Launch

Our 5-phase execution model ensures predictable roadmaps, punctual milestones, and fixed budgets.

1

Chart of Accounts Discovery

Configuring chart of accounts (SKR03 / SKR04 in Germany), tax buckets, and alignment with your tax advisor.

Deliverable:Financial Architecture & Accounting Blueprint
2

Invoice Template & Brand Engineering

Designing legally compliant invoice layouts with company branding, mandatory disclosures, and EPC QR codes.

Deliverable:Audit-Proof Branded Invoice Templates
3

Banking Feeds & Gateway Integration

Connecting business bank accounts via FinTS/EBICS and merchant gateways for SEPA and credit card collections.

Deliverable:Live Bank Feed & Automated Reconciliation
4

Dunning Rules & DATEV Validation

Setting up reminder stages and generating test export batches for formal sign-off by your tax consultant.

Deliverable:Tax-Advisor Approved DATEV Pipeline
5

Production Cutover & Staff Training

Internal finance team onboarding, complete source code handover, and ongoing technical SLA support.

Deliverable:Live Production Invoicing & Code Delivery
TARGET USE CASES

Industries & Teams That Genuinely Benefit

Engineered around specific real-world operational challenges for maximal market impact.

Agencies & Professional Services

Milestone & Hourly Retainer Billing

Generate invoices directly from approved timesheets and milestone deliverables with automated overdue payment notices.

Construction & Engineering Contractors

Progress Billing & Retention Accounting

Compliant tracking of phase billings, retainage reserves, and final accountings aligned with German construction standards.

SaaS & Subscription Companies

Automated Recurring Billing & SEPA Direct Debit

Autonomous monthly billing runs generating SEPA XML direct debit files for hundreds of recurring accounts.

REAL CASE STUDIES

Verified Client Projects Delivered

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INSIGHTS & GUIDES

Related Technical Guides

FREQUENTLY ASKED QUESTIONS

FAQ on Invoicing & Accounting

Transparent answers to the most critical technical and operational questions regarding your project.

Yes, 100%. Invoices are immutably archived upon finalization, assigned strict sequential numbering, and tracked via an audit-proof system log.
DISCUSS YOUR REQUIREMENTS

Ready to Launch Your Invoicing & Accounting Project?

Consult directly with our software architects. We analyze your requirements and deliver a transparent fixed-price roadmap and timeline estimate within 24 hours.

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