Credit Notes

Reduce what a customer owes, without touching the original invoice.

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Core Principle
A credit reduces the amount a customer owes on an invoice. The invoice itself stays unchanged, it remains a permanent record of what was billed.
Invoice Amount:     $1,000
− Credit Applied:     $200
= Customer Pays:      $800
The $1,000 invoice is never edited. Your accounting records stay clean. Only the balance due changes.

Credit Types

Four types. The type determines where the credit came from and which invoices it can apply to.

Type	What it is	Description	Use when
Credit Note	Billing adjustment	Wrong price, duplicate charge, or post-close negotiation. Linked to the original invoice for a full audit trail.	Correcting a billing error
Prepaid Credit	Pre-purchased usage	Customer buys a block of usage upfront. Draws down automatically as they consume. Only applies to usage invoices.	Customer prepays for usage
Service Credit	SLA compensation	Downtime, degraded performance, missed SLA. Most flexible type, applies across most invoice categories.	You owe the customer for a service failure
Credit & Rebill	Full invoice correction	Invoice is finalized or paid but still wrong. Reverses the original, issues a corrected replacement. Creates the cleanest audit trail.	Invoice is already closed but incorrect

How a Credit Gets Applied

1. Credit is issued

Created and held against the customer's account.

Type:      Service Credit
Amount:    $200
Reason:    4-hour outage, 2024-03-15
Status:    Available

2. Invoice eligibility is checked

System confirms the invoice can receive this type of credit.

Invoice:             INV-2024-089
Amount:              $1,000
Status:              UNPAID ✓
Credit type match:   Yes ✓

3. Balances update simultaneously

Invoice balance, credit balance, and amount due all recalculate at once.

Invoice Balance	Credit Balance	Amount Due
$1,000 → $800	$200 → $0	$800

✓ Done

Original Invoice:   $1,000 (unchanged)
Credit Applied:     −$200
Customer Pays:      $800

Which Invoices Can Receive a Credit

Credit eligibility depends on invoice state. Only open invoices qualify.

DRAFT → UNPAID ✓ → PARTIAL ✓ → PAID → CANCELED

✅ Eligible: UNPAID and PARTIALLY PAID
❌ Not eligible: PAID invoices, credit carries forward to the next open invoice automatically

Need to correct a PAID invoice? Use Credit & Rebill, see the Examples tab.

Why credits work this way

Credits and invoices are stored separately. This is intentional.

Invoices never change. The billed amount is always on record — no overwriting history.
Credits are reusable. One credit can apply across multiple invoices, or sit until the right invoice arrives.
Everything is traceable. Who issued it, when, why, and where it was applied, all captured.
Rules are enforced automatically. Eligibility is checked before any application goes through.

Click any scenario to expand it.

Service Credit for Downtime

Outage compensation applied to next invoice

	Before Credit	After Credit
Invoice Amount	$5,000	$5,000
Credit Applied	—	−$200
Amount Due	$5,000	$4,800

Invoice stays at $5,000 in your accounting records. Customer pays $4,800. No invoice editing, no manual journal entries.

Multiple Credits on One Invoice

SLA credit + contract adjustment applied in sequence

Starting Point: Invoice: $1,000. Two credits available: $200 (service) + $150 (contract adjustment)
After First Credit ($200): Applied: −$200. Balance: $800
After Second Credit ($150): Total Applied: −$350. Balance: $650

Credits stack. Each is tracked independently, you always know exactly what reduced the balance and why.

Credit Exceeds the Invoice Balance

$500 credit, $300 invoice, what happens to the rest?

The Situation		What Happens
Invoice Balance	$300	Applied to Invoice	$300
Credit Available	$500	Credit Remaining	$200

The $200 remainder stays active. It applies automatically to the next eligible invoice, no action required.

Correcting a Finalized Invoice

Invoice was closed with the wrong price

❗️
✗ Won't work
Applying a standard credit to a PAID invoice, the credit just forwards to the next open one. The wrong invoice stays on record uncorrected.

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✓ Use Credit & Rebill
Reverses the original invoice and issues a corrected one. Both appear in your financial records.

The Credit & Rebill Flow

Original invoice: Invoice-001: $500 (wrong price) — PAID
Issue Credit Note: Reverses Invoice-001 → credit balance: $500
Generate corrected invoice: Invoice-002: $350 (correct price)
Apply credit: $500 applied to Invoice-002 → $0 due · $150 carries over

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Why the extra steps matter: Records show Invoice-001 → Credit Note → Invoice-002. Finance, auditors, and customers can all see exactly what happened and when.

Prepaid Credit Drawing Down

Customer pre-purchased a usage block, here's how it depletes

Period	Prepaid balance	Usage invoice	Remaining
Month 1	$1,000	$300 → applied automatically	$700
Month 2	$700	$400 → applied automatically	$300
Prepaid Exhausted	$0	Subsequent invoices billed at standard rate	—

Drawdown is fully automatic. Prepaid credits only apply to usage invoices, not subscriptions or one-time fees.

Situations that catch teams off guard, and how to handle them.

Credit Applied to an Already-Paid Invoice

You issue a $200 credit, but the invoice it was meant for is already PAID.

What MonetizeNow Does

Paid invoice:   Untouched
Credit:         Forwarded to next open invoice
Credit lost:    No

Paid invoices are closed financial records. The system protects them from retroactive changes, so the credit moves forward instead.

→ Check invoice status before applying to make sure it lands where you intend.

Credit Applied Across Billing Periods

A March service credit applied to a January invoice, does it matter?

The Timeline

January:   Invoice generated: $10,000
March:     Service credit issued: $500
April:     Credit applied to January invoice

The invoice date doesn't change. Depending on how your finance team handles period close, applying a Q1 credit to a Q4 invoice can create revenue classification questions.

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✓ Best Practice
Loop in your finance team before applying credits across fiscal quarters or year-end. Document which period the credit belongs to.

Credit Applied to the Wrong Invoice

Credit went to Invoice A. It should have gone to Invoice B. You can't undo an application, but you can recover cleanly in three steps.

Recovery Steps

Issue a reversal credit: Negative credit equal to the misapplied amount (e.g., −$200)
Apply it to Invoice A: Restores Invoice A's original balance
Apply the original credit to Invoice B: Now correctly placed

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Result: Records show mistake → reversal → correct application. Nothing hidden, nothing deleted.

Wrong Credit Type for the Invoice

Prepaid credit applied to a subscription invoice. The application fails and it may not show an obvious error message.

Why It Fails

Credit type:    Prepaid
Invoice type:   Subscription
Result:         Rejected: type mismatch

Prepaid credits are scoped to usage billing only. They're not designed for flat subscription fees.

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✓ Fix
Use a Service Credit instead, it applies to subscription, usage, and one-time invoices alike.

Best Practices

Check invoice status before applying. If the invoice is PAID, the credit will silently forward to the next open one. Verify status first so it lands where you intend.
Always include a reason when issuing a credit. e.g., "SLA breach 2024-03-15" or "Contract amendment AMN-001". Makes audits fast and eliminates confusion months later.
Match credit type to invoice type. Prepaid credits → usage invoices only. Service credits → any invoice type. A mismatch will cause the application to fail.
Watch for large carryover balances. When credits regularly exceed invoice balances, the remainder accumulates. Flag accounts with $1,000+ in unused credits before renewal conversations.
Use Credit & Rebill when the invoice itself is wrong. Wrong pricing, wrong products, wrong contract terms, don't just credit the difference. Credit & Rebill gives you a clean correction with a full audit trail.
Coordinate with finance on cross-period credits. Applying a credit from one quarter to an invoice from a previous one can affect revenue classification. Align with your finance team before doing this at period close.

In MonetizeNow: Credits reduce what a customer owes, they don't modify the invoice. The original invoice is always preserved as an immutable financial record, while credits handle adjustments separately and cleanly.