What is Invoice sales? Complete Guide to Lending and Debtor Management

Invoice sales is an accounting method where revenue is recorded at the time an invoice is issued to the customer, regardless of when payment is actually received. This is a fundamental part of the periodization principle in the accounts and directly affects the company’s operating result and liquidity management .

For a thorough introduction to sales in accounting, see the article [Sales](/regnskap/begreper/salg/ “Salg " Oversikt over salgskonsepter i Norsk Regnskap”).

Section 1: Basics of Invoice sales

Invoice sales differ from cash sales in that there is a time interval between delivery and payment. This creates both opportunities and challenges for the company, as it affects working capital and requires active debtor follow-up .

Invoice Sales Process

Characteristics of Invoice sales

  • Credit period: The customer is given a payment deadline, usually 14-30 days
  • Risk: The company bears the risk that the customer does not pay
  • Cash flow: Negative impact on short-term liquidity
  • Customer service: Increased customer satisfaction through flexible payment terms

Section 2: Accounting of invoice sales

When a company sells on invoice, the transaction must be booked correctly according to double entry and Norwegian accounting rules.

Bookkeeping example

When selling goods for NOK 10,000 + NOK 2,500 VAT on the invoice:

AccountAccount NameDebitCredit
1500Accounts receivable12,500
3000Sales revenue10,000
2700Output VAT2,500

When the invoice is paid, the account receivable is reversed:

AccountAccount NameDebitCredit
1900Bank12.500
1500Accounts receivable12,500

Section 3: Advantages and Disadvantages of Invoice Sales

Benefits for the Company

  • Increased sales volume: More customers can shop when they do not have to pay immediately
  • Competitive advantage: Flexible payment terms can set you apart from the competition
  • Customer loyalty: Relationships of trust are built through credit
  • Higher order value: Customers often shop for larger amounts on credit

Disadvantages and Risks

  • Liquidity challenges : Money is tied up in accounts receivable
  • Credit risk: Risk of loss on receivables
  • Administrative costs: Follow-up of invoices and collection
  • Interest costs: May have to borrow money to finance operations

Invoice sales Advantages and Disadvantages

Section 4: Credit Analysis and Customer Assessment

Before a company offers invoice sales to new customers , a thorough credit analysis should be carried out to minimize the risk of loss.

Credit analysis process

  1. Collection of credit information
  • Credit check with Bisnode, Experian or similar
  • Annual accounts and key figures
  • References from other suppliers
  1. Assessment of ability to pay
  1. Determining the credit limit
  • Maximum outstanding amount per customer
  • Payment terms and credit period
  • Collateral if necessary

Credit classification of Customers

Risk classDescriptionCredit limitPayment terms
A - Low riskEstablished customers with good payment historyHigh30 days
B - Medium riskNew customers with acceptable financesMedium14 days
C - High riskCustomers with weak finances or bad historyLowAdvance/cash

Section 5: Follow-up and Debtor handling

Effective debtor handling is critical to success with invoice sales. This involves systematic follow-up of outstanding invoices and proactive communication with customers.

Debtor follow-up process

  • Day 0: The invoice is sent with a clear due date
  • Day 7: Automatic reminder via e-mail or SMS
  • Day 14: First formal payment request
  • Day 30: Second reminder with a stricter tone
  • Day 45: Third reminder with threat of collection
  • Day 60: Transfer to debt collection company

Key figures for Debtor follow-up

Key figuresCalculationGoal setting
Average credit period(Accounts receivable × 365) / Turnover< 30 days
Share of overdue receivablesOverdue receivables / Total receivables< 5%
Loss percentageLoss on receivables / Turnover< 0.5%

Debtor Tracking Timeline

Section 6: Financing of Invoice sales

Invoice sales tie up working capital, and companies often have to finance this capital tie-up through various financing solutions.

Financing options

Traditional Bank financing

  • Operating credit: Flexible credit line to cover short-term liquidity needs
  • Accounts receivable loans: Loans with accounts receivable as security
  • Account credit: Overdraft right on bank account

Alternative financing solutions

  • Factoring : Sale of accounts receivable to financing company
  • Invoice Trading: Digital platform for trading invoices
  • Supply Chain Finance: Supplier financing through the buyer’s bank

Costs of Financing

Financing TypeTypical Interest/FeesBenefitsDisadvantages
Operating credit3-8% p.a.Flexible, fast accessSecurity requirements
Factoring1-3% of invoice amountNo credit riskHigher costs
Invoice Trading0.5-2% of invoice amountCompetitive pricesLimited Availability

Section 7: Digitization of Invoice sales

Modern technology has revolutionized the invoice sales process, from electronic invoicing to automated debtor follow-up.

Digital Tools and Systems

  • ERP systems : Integrated management of sales, invoicing and accounting
  • CRM systems: Customer follow-up and credit analysis
  • Automated reminder systems: Reduces manual work
  • AI-based credit scoring: Improved risk assessment

Advantages of Digitization

  • Reduced administrative costs: Automation of routine tasks
  • Faster invoice processing: From days to minutes
  • Better control: Real-time reporting and dashboards
  • Improved customer experience: Self-service and transparency

Digitalization Invoice sales

Invoice sales are regulated by several laws and regulations that companies must comply with.

Relevant Legislation

  • Accounting Act : Requirements for documentation and storage
  • Bookkeeping regulations : Specific requirements for invoice content
  • Debt collection act: Regulates follow-up of overdue claims
  • Delay Interest Act: Interest on late payment
  • Freedom of contract: The parties can agree on payment terms
  • The duty of loyalty: Both parties must act loyally
  • Delay interest: Automatic accrual from the due date
  • Burden of proof: The supplier must prove delivery

Section 9: Industry-Specific Challenges

Different industries have different challenges related to invoice sales, depending on customer structure, product type and market conditions.

B2B vs B2C Invoice sales

Business-to-Business (B2B)

  • Longer credit periods: 30-60 days is common
  • Larger order values: Higher risk per customer
  • Professional procurement processes: More predictable payment patterns
  • Contractual conditions: Detailed delivery conditions

Business-to-Consumer (B2C)

  • Shorter credit times: 14-30 days
  • Smaller order values: Lower risk per transaction
  • Impulse purchases: Less planned purchases
  • Consumer rights: Stricter regulation

Industry-specific challenges

IndustryTypical Credit PeriodMain challenges
Construction45-60 daysLong projects, subcontracting chains
Retail14-30 daysHigh Volume, Low Margins
Consulting30 daysQuality of service, billing basis
Industry30-45 daysSeasonal variations, commodity prices

Section 10: Measurement and Optimization

To be successful with invoice sales, companies must continuously measure and optimize their processes based on relevant key figures.

Important KPIs for Invoice sales

  • Days Sales Outstanding (DSO): Average time from sale to payment
  • Collection Effectiveness Index (CEI): Efficiency in the collection process
  • Bad Debt Ratio: Proportion of losses on receivables
  • Invoice Accuracy Rate: Proportion of correct invoices the first time

Optimization strategies

Improvement of Credit Analysis

  • Implement automated credit checks
  • Develop internal scoring models
  • Regular updating of customer data

Streamlining the Invoicing process

  • Automate invoice generation
  • Implement electronic invoicing
  • Reduce billing errors through quality control

Proactive debtor follow-up

  • Automated reminder systems
  • Personal follow-up of large customers
  • Incentives for early payment

Optimization Invoice Sales

Section 11: Internal Control and Risk Management

Effective internal control is essential to minimize risk and ensure correct handling of invoice sales.

Control activities

  • Segregation of tasks: Distinguish between sales, invoicing and collection
  • Authorization levels: Clear authorizations for granting credit
  • Regular reconciliations: Control of accounts receivable
  • Documentation requirements: Traceability in all transactions

Risk identification and management

Operational Risks

  • Invoicing errors and missing documentation
  • Inadequate credit analysis
  • Inefficient debtor follow-up

Financial Risks

  • Concentration risk (few large customers)
  • Currency risk with international sales
  • Liquidity risk with a long credit period

Strategic Risks

  • Changes in market conditions
  • New competitive situation
  • Regulatory changes

Invoice sales are continuously developing, driven by technological advances and changing customer expectations.

  • Artificial Intelligence: Improved credit scoring and risk analysis
  • Blockchain: Increased security and transparency in transactions
  • Open Banking: Better access to customers’ financial data
  • Real-time payments: Reduced credit period and liquidity risk
  • Increased focus on sustainability: ESG criteria in credit analysis
  • Personalisation: Tailor-made payment solutions
  • Integrated ecosystems: Holistic financial services
  • Regulatory changes: Stricter requirements for documentation

Conclusion

Invoice sales is a complex business process that requires thorough planning, efficient systems and continuous follow-up. When handled correctly, it can be a powerful driver of growth and customer satisfaction. The key to success lies in balancing sales opportunities with risk management, while utilizing modern technology to optimize processes.

Companies that master invoice sales will have a significant competitive advantage through improved cash flow , stronger customer relationships and more efficient operations. However, it requires continuous focus on internal control , technological development and adaptation to changing market conditions.