---
title: "How to account for late fees: tax, income accounts and reconciliation"
description: "UK statutory interest is outside the scope of VAT, not zero rated. Which income account they belong in, why they need their own invoice, and how to reconcile."
url: https://www.paidnice.com/blog/how-to-account-for-late-fees
---

# How to account for late fees: tax, income accounts and reconciliation

Written by

Denym Bird
Expert verified

Co-founder & CEO of Paidnice

Denym explained how to account for late fees, covering UK VAT treatment, the right income account, why the fee needs its own invoice, and how to reconcile it when paid.

Reviewed by Jack Daffron

Co-founder of Paidnice

Updated Nov 6, 2026 · 9 min

## Summary

A late fee charged to a business customer is outside the scope of VAT in the UK: statutory interest and the fixed compensation sum compensate for late payment rather than pay for a supply, so they carry no VAT and belong on their own invoice. In the US, sales tax treatment differs by state and by the type of charge.

- **Not zero rated:** 'Not applicable' (outside the scope) is the correct rate; a 0% VAT rate inflates reported turnover with a charge that was never a supply.
- **Separate invoice:** Raise the fee on its own invoice, posted to its own income account, so the tax treatment never mixes with the original sale's VAT.
- **US differs by state:** Late-payment interest is usually treated as compensation and left out of the sales-tax base; a separately charged admin or service fee is more likely taxable.

Not advice

This is general information about how these charges are usually treated, not tax or legal advice. Tax treatment varies by jurisdiction and by the nature of the charge. Check the specifics with your accountant.

## Is a late fee taxable

**In the UK, statutory interest and the fixed compensation sum are outside the scope of VAT.** They are compensation for late payment, not consideration for a supply, so there is nothing to charge VAT on. That is why they belong on their own invoice, raised alongside the tax invoice for the sale. Our [UK late payment fees guide](https://www.paidnice.com/blog/late-payment-fees-uk) lists the rates. The Business Central setup is covered in [VAT on late payment interest](https://www.paidnice.com/blog/business-central-uk-late-payment-interest).

Elsewhere the treatment differs, and it is worth checking rather than assuming.

| Market | Basis of the charge | Usual treatment |
| --- | --- | --- |
| **UK** | Statutory. Late Payment of Commercial Debts (Interest) Act 1998 | Interest and compensation are outside the scope of VAT |
| **EU** | Statutory. [Directive 2011/7/EU](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32011L0007) | Interest and the €40 minimum are compensation, generally outside the scope |
| **US** | Contractual, so it rests on your [payment terms](https://www.paidnice.com/blog/payment-terms-and-conditions-templates), state by state, usury caps apply | Sales tax treatment varies by state. A finance charge is usually not a taxable sale, but check your state On NetSuite, [finance charges post with the Non-Taxable code](https://www.paidnice.com/blog/netsuite-finance-charges). |
| **Australia, New Zealand** | Contractual | Interest for late payment is generally not a taxable supply for GST. A service or admin fee may be |
| **Canada** | Contractual, federal and provincial variation | Interest is generally exempt for GST and HST. State the annual equivalent rate in your terms |
| **South Africa** | Prescribed Rate of Interest Act | Interest is generally not a taxable supply for VAT |
| **Singapore** | Common law, genuine pre-estimate of loss test retained | Compensatory interest is generally outside GST |

**The pattern across every market is the same.** Interest that compensates you for being kept out of your money is not payment for anything you supplied, so it usually sits outside the tax net. An administration or handling fee is more likely to be treated as a service, and therefore taxable. If you charge both, split them onto separate lines so each can carry its own treatment.

Free: Late payment interest calculatorWork out the interest or fee on an overdue invoice.

## "Not applicable" is not the same as 0%

A 0% rate tells your accounting system the charge is a taxable supply taxed at nothing, so it lands on your VAT return as a zero rated sale and inflates your reported turnover. "Not applicable" tells the system the charge is outside the scope of VAT, so it stays off the return entirely. Both print the same number on the invoice, which is why the error survives so long.

Common, wrong

#### Zero rated, or 0%

Tells your accounting system the charge **is** a taxable supply, taxed at nothing.

It appears in your VAT return as a zero rated sale, inflating your reported turnover for the period with something that was never a supply.

Correct

#### Not applicable, or no VAT

Tells your accounting system the charge sits **outside the scope** of VAT entirely.

It stays off the VAT return, which is where a compensation payment belongs.

Both produce the same number on the invoice, which is why the error survives so long. They produce different returns, and the difference only surfaces when someone reconciles turnover to the VAT account and finds it does not agree.

Whatever you use, set the rate explicitly on the fee. Inheriting the account default is how a late fee ends up carrying 20% VAT on an invoice that should have carried none.

## Is a late fee subject to US sales tax?

Whether a late fee is subject to US sales tax depends on the state and on the type of charge. Interest for late payment is usually treated as compensation and excluded from the sales-tax base. A separately charged administration or service fee is more likely to be taxable, because it looks like a service rather than compensation.

No federal rule settles it, and the states differ on whether a finance charge added after the sale forms part of the taxable sales price. Check your state department of revenue before setting the rate, keep interest and any admin fee on separate lines so each can carry its own treatment, and never inherit the account default. The interest rate itself is capped by state usury law, and the caps are in [late fee laws by US state](https://www.paidnice.com/blog/late-fee-laws-by-all-us-states).

## Separate invoice, not a line on the original

Raise the late fee as its own invoice, never as a line added to the original sale. The original stays the record of the sale, the fee can be voided or credited in one action, and a no-tax charge never gets mixed into a tax invoice.

- **The original stays the record of the sale.** Editing an approved invoice to add a charge changes the document your customer already has, which creates a mismatch with their purchase order and their copy.
- **The fee is easy to remove.** Most late fees get [waived once the customer pays](https://www.paidnice.com/blog/waiving-late-payment-fees). A separate invoice is voided or credited in one action. A line inside a larger invoice has to be edited out, on a document that may already be part paid.
- **The tax treatments do not mix.** A no-VAT charge inside a 20% VAT invoice muddies the return and makes the invoice harder to defend if queried.

The mechanics are in [adding late fees in Xero](https://www.paidnice.com/xero/add-late-fees) and [in QuickBooks](https://www.paidnice.com/quickbooks/add-late-fees), with the step by step in [adding late payment fees to Xero invoices](https://www.paidnice.com/blog/add-late-payment-fees-xero) and [applying finance charges in QuickBooks Online](https://www.paidnice.com/blog/apply-finance-charges-in-quickbooks-online).

## Which income account

Late fees belong in their own income account, separate from sales and from any miscellaneous catch-all, with interest in one account and fixed or admin charges in another.

Two reasons. The first is visibility: once late fee income has its own line, you can see what late payment is actually worth to you, and what you gave away by waiving. Most businesses have never seen that number, and it usually surprises them in both directions.

The second is that **the account is how you separate the two charges**. Interest and an administration fee often have different tax treatments, so posting them to one account makes the return harder to prepare. Use one account for interest and another for fixed or admin charges.

Once late fee income has its own account, the number worth watching is interest raised against interest waived. A business raising £4,000 a quarter and waiving most of it is running the policy correctly: the fee is working as leverage and the customers are paying. A business raising £4,000 and collecting all of it has customers who have decided the fee is cheaper than paying on time, which is a different problem.

## Reconciling the fee when it is paid

A fee raised as an invoice reconciles like any other receipt. A fee that exists only in a report arrives as an unallocated payment that someone has to code manually, every time.

If the fee was raised as an invoice, the payment matches it like any other receipt. The customer pays £128.41, it allocates against INV-1002, and the account clears.

If the fee only ever existed in a report or on a PDF, the cash arrives with nothing to allocate it to. You have an unallocated receipt to code manually, every time, on every account, and a bank reconciliation that does not agree until someone works out what the odd amount was for.

Customers often pay the original and the fee in one lump, so expect to split receipts. If you take payment through a [customer payment portal](https://www.paidnice.com/blog/what-is-a-customer-payment-portal), the allocation usually comes back already matched.

## What happens at year end when fees are waived

Use a credit note rather than a void for any fee you have deliberately waived.

A void removes the transaction as though it never happened. A credit note leaves both documents in place: the charge, the reversal, and the date of each. At year end your accountant sees a policy that was applied and then partly conceded, which is a normal and explicable pattern.

Void is for a fee that should never have been raised, such as one applied to an invoice that turned out to be disputed. Those are different events and the ledger should show them differently.

## Credit notes sitting on the account

If a customer holds unallocated credit notes, the interest should be calculated on the **net** balance, not the gross.

Charging interest on money the customer has already been credited for is a small error with a large effect. It is immediately visible to the person checking the statement, it makes every other figure look questionable, and it turns a routine charge into a dispute about your competence rather than their payment.

This is also one of the practical reasons the fee belongs in the ledger. A charge calculated inside a separate tool has no view of the credit notes sitting against the customer, so it cannot net them off. The same netting applies when the balance appears on a statement, covered in [late payment interest on customer statements](https://www.paidnice.com/blog/late-payment-interest-on-statements), and whether that interest compounds is in [compound or simple interest](https://www.paidnice.com/blog/compound-interest-on-overdue-invoices).

## What mistakes cost you money when you account for late fees?

Three mistakes put a wrong figure on a return or erase a fee from the record. The first two use the fee invoice in the figure above: £58.41 interest plus £70.00 compensation, £128.41 in all.

- **Posting the fee at 0% instead of "Not applicable".** The £128.41 then counts as a zero rated sale, so reported turnover is £128.41 higher for a charge that was never a supply ([see above](#s2)).*Fix: set the tax rate to "Not applicable" on every fee.*
- **Leaving the account default tax rate on the fee.** At 20%, VAT adds £25.68 (£128.41 × 20%), so the customer is billed £154.09 for a charge the post [treats as outside the scope of VAT](#s1) in the UK.*Fix: set the rate on each fee, never inherit it.*
- **Voiding a fee you meant to waive.** A [void](#s6) leaves no record of the fee. About 1 in 4 late fees is waived, and about 6 in 10 are paid in full.*Fix: use a credit note for a deliberate waiver.*Source: our analysis of invoice data from over 1,000 Paidnice customers. See [our late fee data](https://www.paidnice.com/blog/do-late-fees-work#paid-or-waived).

## How Paidnice does this, and how simple it is

In [Paidnice](https://www.paidnice.com/late-fees) the accounting settings are part of the fee policy, so they are set once rather than on each charge.

![A Paidnice late fee policy charging interest at 10 percent a year after a 30 day grace period, with the Fee Income Account and Tax Rate fields on the policy](https://www.paidnice.com/images/blog/late-fee-policy-annual-rate.png)

- **Set the tax rate on the fee explicitly**, including a "Not applicable" option as well as your account default, and choose whether amounts are tax inclusive or exclusive.
- **Give interest and fixed charges their own income accounts.** The fixed amount line, used for UK compensation of £40, £70 or £100 or for a contractual admin fee, carries its own account and description.
- **Every fee is a real invoice** in Xero or QuickBooks, raised as draft or approved, so it reconciles like any other receipt when it is paid.
- **Unallocated credit notes are netted off** before the charge is calculated, and a tracking category or class can be applied so late fee income reports by department or entity.

Setting it up is one policy, and the accounting choices sit on the same screen as the rate.

## Common questions

**Is a late payment fee subject to VAT in the UK?** No. Statutory interest and the fixed compensation sum are compensation for late payment rather than consideration for a supply, so they are outside the scope of VAT. Raise them with no VAT rather than at a zero rate. To work the figure out, use the [UK statutory interest calculator](https://www.paidnice.com/uk/statutory-interest-calculator).

**What account should late fees be posted to?** Their own income account, separate from sales. Use a second account if you charge an administration fee alongside interest, because the two can have different tax treatments.

**Can I add the late fee to the original invoice?** You can, and it causes more problems than it solves. It changes a document the customer already holds, it is harder to waive, and it mixes tax treatments.

**Void or credit note?** Credit note for a deliberate waiver, because it preserves the record. Void for a fee that should never have been raised at all.

**Do I charge tax on an admin fee?** More likely than on interest, because an administration fee looks like a service rather than compensation. Put it on its own line so it can carry its own rate, and confirm the treatment with your accountant.

## Paidnice features in this article

- [**Late fees and interest** Adds late fees and interest to overdue invoices when you turn them on.](https://www.paidnice.com/late-fees)

## About the editorial team

Written by Denym Bird Co-founder & CEO of Paidnice

Denym started Paidnice in 2022 after customers paying late left his own business short on payroll. He has led it to $1 billion collected on time across more than 1 million invoices, and writes about credit control, late fees and getting paid on Xero and QuickBooks.

Reviewed by Jack Daffron Co-founder of Paidnice

Jack is a co-founder of Paidnice and has built accounting software for more than 10 years. He builds the product that sends reminders, adds late fees and takes payments for businesses on Xero, QuickBooks and ERPs such as NetSuite and Business Central.

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