# How to Edit an Invoice After Sending It: Edit, Reissue or Credit

> How to edit an invoice after you send it: a decision table by invoice state, with wording for UK, German and US freelancers and a worked credit note.

Canonical: https://www.invoqk.com/blog/how-to-edit-an-invoice-after-sending-it-edit-reissue-or-credit
Last updated: 2026-10-31

## Key takeaways

- You can edit an invoice freely while it is a draft, but once you have sent it the original document should stay untouched and any change should be a new document that cites it.
- In the UK, HMRC Notice 700 says a credit note or supplementary invoice should carry the number and date of the VAT invoice and show both the correct and the incorrect VAT amounts.
- In Germany, UStDV section 31 lets you correct only the missing or wrong details in a document that clearly refers to the invoice, and UStG section 14c makes you owe any VAT you showed too high until you correct it.

**Edit invoice** is the everyday phrase for changing an invoice after you made it. Whether you may do that depends on one thing: how far the invoice has travelled. A draft is yours to change. A sent invoice is a record your client now holds. A booked invoice is part of your accounts and, if you charge VAT, part of a tax return.

In brief: edit drafts freely, correct small details with a document that cites the original, fix wrong amounts with a credit note plus a new invoice, and never overwrite an invoice that has been sent or filed.

This guide gives you a decision table by invoice state, the exact wording for each correction, and a worked example with numbers. It covers the United States, the United Kingdom and Germany.

## Can you edit an invoice after you send it?

You can change an invoice before you send it, and after that you should not change the sent version. Instead you issue a second document that points back to the first. The client then holds both, and so do you, so the two sets of books agree. Related: [what a credit note must show](/blog/credit-invoice-what-a-credit-note-must-show-with-a-template), [how to number invoices](/blog/what-is-an-invoice-number-how-to-number-invoices).

The reason is simple. Your client may already have booked the invoice, scheduled the payment or claimed VAT on it. If you quietly replace the file, their copy and yours now say different things, and nobody can tell which one is right.

Think of an **original invoice** as the document as it was first sent. A **copy of an invoice** is a duplicate of that same document, with nothing changed. A **correction** is a new document that changes something and says what it changes.

![Decision chart: draft is edited freely, sent invoice with a wrong detail gets a correction, wrong amount gets a credit note and a new invoice, booked invoice gets a credit note in the current period](https://www.invoqk.com/charts/edit-sent-invoice-decision.svg)

## What is the difference between a draft invoice and a sent invoice?

A **draft invoice** is an invoice you have prepared but not yet issued to the client. Nothing in it has legal or accounting effect yet, so editing the draft is just editing. Change the amount, the dates, the line items or the look of the page as often as you like.

An invoice becomes a sent invoice the moment the client can read it. That is the point where it is issued. Sending a PDF by email counts. So does handing over a printout or sharing a payment link that shows the invoice.

Most mistakes are found just after sending, because that is when you look at it as the client sees it. Check the draft against the job order before you press send. A two-minute check saves a credit note.

A sensible habit with invoicing software is to lock the invoice once it is sent. Then the "edit" button becomes "create credit note" or "duplicate as new draft". Invoqk follows that pattern: you can regenerate a document from the same description, and the sent version stays as it was.

## Which correction fits which state?

Match the state of the invoice to the action. The table below is the whole decision.

| State of the invoice | What changed | What to do |
| --- | --- | --- |
| Draft, not sent | Anything | Edit it directly |
| Sent, unpaid | A detail such as an address or reference | Send a correcting document that cites the original |
| Sent, unpaid | An amount, quantity or tax rate | Credit note for the old amount, then a new invoice |
| Sent, paid | The amount was too high | Credit note and a refund, or a credit against the next invoice |
| Sent, paid | The amount was too low | A supplementary invoice for the difference |
| Booked or in a filed return | Anything | Never overwrite; add a credit note dated in the current period |

Read the table from the top. The first row is the only one where you may change the document itself. Every other row adds a document instead of changing one.

### How do you fix a wrong detail on a sent invoice?

Send a short correcting document that names the invoice and says what was wrong. For a wrong address, a missing purchase order number or a misspelled company name, you do not need to cancel anything. You add the right detail and refer back.

For example, "This notice corrects invoice INV-2026-041 dated October 12, 2026. The customer address was shown as 14 Elm Rd. The correct address is 14 Elm Road, Manchester M14." The client can attach that sheet to the original and carry on.

In Germany the rule is written down. [UStDV section 31](https://www.gesetze-im-internet.de/ustdv_1980/__31.html) says an invoice can be corrected by sending only the missing or incorrect details, in a document that refers specifically and clearly to the invoice. The correcting document must meet the same form and content requirements as the invoice.

### How do you fix a wrong amount on a sent invoice?

Cancel the wrong amount with a credit note and bill the right amount on a new invoice. The credit note reverses the old charge. The new invoice carries a new number and the correct figures. Together they leave the client owing exactly what they should.

A **credit note** is a document that reduces or cancels an amount you billed on an earlier invoice. If you need the layout, the [credit note template](/templates/credit-note-template) shows the fields, and the Invoqk guide on what a credit note must show goes deeper. This guide is about when to reach for it.

You can also credit only the difference. If you billed $2,000 and the right figure was $1,800, a credit note for $200 is enough. You need a new invoice only when many lines change, or when the client wants a clean document to pay.

### What if the client has already paid the wrong amount?

If the client overpaid, credit the difference and then refund it or apply it to the next invoice. If the client underpaid because your invoice was too low, send a supplementary invoice for the shortfall. Do not rewrite the paid invoice to a new total.

For example, you billed $1,500 and the work was worth $1,800. The client paid $1,500. Send a second invoice for $300 that cites the first. Both stay in the books and the totals match the work.

## What does the UK require when you correct a VAT invoice?

In the UK, a VAT invoice you sent stays as issued, and you correct it with a credit note or a supplementary invoice. [HMRC VAT Notice 700 paragraph 19.8](https://www.gov.uk/guidance/vat-guide-notice-700) says the correcting document should bear a reference to the number and date of the VAT invoice and should show clearly both the correct and the incorrect amounts of VAT.

The same paragraph sets the VAT effect. If you charged too much VAT, you must account for the higher amount in your records unless you correct the error with your customer by issuing a credit note. If you charged too little, you must account for the correct amount whether or not you correct it with your customer. A supplementary invoice for the amount undercharged is one way to do that.

The adjustment goes through your accounts in the period you make it. HMRC says the correction is reflected in your output tax at the end of the tax period in which the error was corrected. You do not reopen the old return to change it.

### What must a UK credit note show?

A UK credit note should be a proper document. [Paragraph 18.2.3 of Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) lists what it shows:

- an identifying number and date
- the supplier and customer details
- a description, quantities and amounts
- the VAT rate and the VAT amount in sterling
- the number and date of the original VAT invoice

It also has to reflect a genuine mistake, overcharge or agreed reduction. Where a refund is paid, the notice says the credit note should be issued within 14 days of the refund payment. If it is not meant to adjust VAT, it should say "This is not a credit note for VAT."

One more UK point: a VAT invoice carries a sequential number that uniquely identifies the document, as paragraph 16.3.1 sets out. So a corrected invoice gets its own new number. Reusing the old number for a different document breaks that rule and confuses everyone.

### Do you need a credit note if the client can reclaim all the VAT?

Not always. Paragraph 18.2.1 of Notice 700 says that where a credit is allowed to a customer who can reclaim all the tax as input tax, you do not have to adjust the original VAT charge if both you and the customer agree not to. Otherwise you should issue a credit note and keep a copy.

This is a narrow case and it needs the client's agreement. If you are unsure, issue the credit note. It costs nothing and it is the cleaner record.

## What does Germany require when you correct an invoice?

In Germany, you correct an invoice with a document that refers clearly to it, and any VAT you showed too high stays owed until you correct it. Two rules matter: UStDV section 31 for the form, and UStG sections 14c and 17 for the tax.

[UStG section 14c paragraph 1](https://www.gesetze-im-internet.de/ustg_1980/__14c.html) says that a business that shows a higher VAT amount on an invoice than it owes also owes the excess. If the business corrects the amount toward the recipient, section 17 paragraph 1 applies accordingly. That is why leaving a wrong invoice uncorrected is not neutral: the extra VAT is your liability.

A **Rechnungsberichtigung** is the correction of an invoice by a new document, and the German phrase appears on the forms your accountant uses. The correcting document should name the invoice and list only the wrong or missing items.

### How does the VAT move in Germany?

When the amount changes, [UStG section 17 paragraph 1](https://www.gesetze-im-internet.de/ustg_1980/__17.html) requires the supplier to correct the VAT owed. It also requires the recipient to correct the input VAT they claimed. Both corrections are made for the period in which the change to the amount happens.

In practice, that means the correction lands in the filing period when you issue the credit, not in the period of the original invoice. The client reduces their input VAT in the same period. Both of you adjust once.

### What if you showed VAT you were not allowed to show?

This is a different case, covered by [UStG section 14c paragraph 2](https://www.gesetze-im-internet.de/ustg_1980/__14c.html). A person who shows VAT separately without being entitled to owes the amount shown. Correcting it needs a separate written application to the Finanzamt, and it is allowed only once the risk to the tax revenue has been removed. The law treats that risk as removed when the recipient did not deduct the input VAT or has repaid it.

That is the strongest reason not to improvise. Show VAT only when you are entitled to, and fix errors early, before the client has deducted anything. A small business under the Kleinunternehmer rules, for example, should not show VAT at all. Ask your tax adviser if you are unsure which side you are on.

![Comparison of how the UK, Germany and the US treat a correction to a sent invoice: all cite the original](https://www.invoqk.com/charts/edit-sent-invoice-countries.svg)

## What about the United States?

The United States has no federal VAT, so there is no federal rule on how a sent invoice is corrected. What follows is bookkeeping practice rather than a tax rule. If you charge sales tax, your state's rules decide how a credit adjusts the tax. Check your state revenue department.

The practice is the same as elsewhere. Keep the original invoice. Issue a **credit memo**, which is the US name for a credit note, that cites the invoice number. Then reissue a new invoice for the right amount if one is needed.

A credit memo also helps when a period is closed. Voiding an invoice in a closed month changes numbers you may already have reported. A credit memo dated in the current month leaves the old month alone and still brings the balance to the right figure.

Keep the explanation with it. A credit memo that says only "adjustment" leaves the next person guessing. Write why: "Fee reduced after scope change on October 20, 2026".

## What does a correction look like with real numbers?

Here is a UK example. A freelance designer billed INV-2026-041 for £2,000 net plus 20% VAT of £400, a total of £2,400. After a scope change, the agreed fee was £1,800 net.

The correction is a credit note for the difference. The designer issues CN-2026-007 citing INV-2026-041, for £200 net, £40 VAT and £240 total. The credit note shows the old VAT of £400 and the correct VAT of £360. The client now owes £2,160.

| Document | Net | VAT at 20% | Total |
| --- | --- | --- | --- |
| Invoice INV-2026-041 | £2,000 | £400 | £2,400 |
| Credit note CN-2026-007 | -£200 | -£40 | -£240 |
| Net position | £1,800 | £360 | £2,160 |

![Bars showing the original invoice of 2,400 pounds, the credit note of 240 pounds and the net amount owed of 2,160 pounds](https://www.invoqk.com/charts/edit-sent-invoice-example.svg)

The VAT adjustment of £40 goes into the designer's VAT return for the period in which CN-2026-007 is issued. That matches the HMRC guidance quoted above.

A German version of the same job uses 19% VAT. The invoice is €2,000 net, €380 VAT and €2,380 total. After the cut to €1,800 net, VAT is €342. The credit note shows €200 net, €38 VAT and €238 total, and refers clearly to the original invoice number and date.

A US version has no VAT line. The invoice is $2,000. The credit memo is $200, cites the invoice number and states the reason. The client owes $1,800.

## What wording should you use?

Use plain, specific wording that names the original. Copy and adapt these blocks.

For a credit note:

```
Credit note CN-2026-007
Date: October 28, 2026
Relates to: invoice INV-2026-041 dated October 12, 2026
Reason: fee reduced after scope change
Net -200.00 | VAT 20% -40.00 | Total -240.00
Original VAT 400.00 | Correct VAT 360.00
```

For a detail correction:

```
Correction to invoice INV-2026-041 dated October 12, 2026
Incorrect: customer address "14 Elm Rd"
Correct: customer address "14 Elm Road, Manchester M14"
All other details are unchanged.
```

For a supplementary invoice:

```
Invoice INV-2026-058 (supplementary)
Relates to: invoice INV-2026-041 dated October 12, 2026
Additional work not billed on the original: 300.00 net
```

Three habits make these hold up. Give every document a new, unique number. Name the original by number and date. State the reason in a few words.

## What are the common mistakes?

The most common mistake is overwriting a sent invoice in place. The second is reusing its number. The third is cancelling a paid invoice without moving the money.

- **Overwriting the file.** The client's copy and yours now differ. Send a correction instead.
- **Reusing the invoice number.** Each document needs its own number. A gap-free series is easier to audit.
- **Voiding a filed invoice.** The VAT is already reported. Use a credit note in the current period.
- **Crediting without refunding.** If the client has paid, a credit note alone leaves them out of pocket. Refund or apply the credit.
- **Silent corrections.** If the client does not know about the change, they will pay the old amount.

## How do you keep a clean record?

Keep the original, every correction and the reason together. UK businesses must keep copies of all VAT invoices they issue, as paragraph 19.3 of Notice 700 states. Keeping the correction chain beside them is the same habit.

A short checklist covers it:

1. Is the invoice still a draft? Edit it.
2. Has it been sent? Leave it, and create a correction.
3. Is the amount wrong? Credit note, then a new invoice or a supplementary invoice.
4. Has money moved? Refund, apply the credit, or invoice the shortfall.
5. Is it in a return? Date the correction in the current period.

To create these documents quickly, you can generate a credit note or a new invoice in [Invoqk](/new) from a short description, or start from the [templates](/templates) page. The sent version stays as it was.

## FAQ

### Can I edit an invoice after sending it?

You can edit it while it is a draft. After you send it, leave it as issued and send a correcting document that cites it. For a wrong amount, that is a credit note plus a new invoice.

### Do I need to delete a wrong invoice?

No. Do not delete a sent invoice. Cancel its effect with a credit note so both records show what happened.

### How do I send a copy of an invoice?

Send a duplicate of the original with nothing changed. Mark it "copy" so nobody pays twice or books it twice.

### What if my invoice number is wrong?

Issue a credit note for the wrongly numbered invoice and a new invoice with the correct number. In Germany, UStDV section 31 also allows a correction that refers clearly to the invoice.

### Can I correct a UK VAT invoice without a credit note?

Where the customer can reclaim all the VAT and you both agree, Notice 700 paragraph 18.2.1 says you need not adjust the original VAT charge. Otherwise issue a credit note. This is general information, not advice on your case.

### Does the same rule apply in the United States?

There is no federal VAT, so there is no federal correction rule. Keep the original, issue a credit memo and check your state's sales tax rules.

## Related

- [Free invoice template guides: compliance & getting paid](https://www.invoqk.com/blog)
- [Invoqk home](https://www.invoqk.com)