VAT on Advance Payments in Luxembourg: Cash vs Accrual

If a client pays you before the work is done — a deposit, a retainer, 50% upfront — VAT is due on that advance the moment you receive it or invoice it, whichever comes first. This catches many freelancers off guard. Luxembourg also offers an optional cash-basis VAT regime (régime d’imposition d’après les recettes / encaissements) that aligns VAT with when money actually hits your account. This guide walks through both schemes with simple freelancer examples.

The rules are set in the loi du 12 février 1979 concernant la TVA (as amended).

How the default scheme works

Luxembourg VAT law distinguishes two concepts:

• Fait générateur (the taxable event) — the moment the goods are delivered or the service is completed. This is when the VAT liability arises in principle.
• Exigibilité (when VAT is actually due) — the moment the tax authority can require payment.

By default, VAT becomes exigible at the earliest of three moments:

1. When you issue the invoice.
2. The 15th of the month following completion or delivery — the back-stop. You cannot delay VAT past this date by simply not invoicing.
3. When you receive an advance payment — even before the work is done.

Point #3 is the one freelancers often miss. If a client pays you a deposit before you’ve started the work, you owe the VAT on that deposit in the period you received it.

A “pro-forma invoice” or “payment request” is not a VAT invoice and does not by itself trigger exigibility. But if the client pays on the basis of a pro-forma, the advance-payment rule kicks in — VAT becomes due when the money arrives.

How the cash-basis scheme works

You can opt into a cash-basis regime (“d’après les recettes” / encaissements) if your annual turnover (excluding VAT) is below €500,000. Under this scheme:

• Output VAT (on your sales invoices) is due only when you actually receive payment — not on invoicing.
• Input VAT (on your purchase invoices) can be deducted only when you actually pay the supplier — not on receiving the supplier’s invoice.

It’s a two-way street. Easier on cash flow for sales, harder for deductions.

You elect the cash-basis regime by written request to the AED (VAT authority). It’s reversible — you can switch back to the default scheme later.

Example 1 — Designer, logo project

Maria is a freelance designer. Client agrees €1,000 (excl. VAT) for a logo. VAT rate: 17%.

Client pays 50% upfront in January: €500 + €85 VAT = €585
Project completes in March: balance €500 + €85 VAT = €585 paid on delivery

Under the default scheme

• January — Maria issues an advance invoice and receives €585. She declares €85 output VAT on her January return.
• March — Maria issues the final invoice for €1,000 + €170 VAT, less the €500 + €85 already invoiced. The remaining €85 goes on her March return.

Total VAT declared: €170, split between January and March by invoicing/receipt date.

Under the cash-basis scheme

• January — Maria receives €585. She declares €85 output VAT on her January return.
• March — Maria receives €585. She declares €85 output VAT on her March return.

Same outcome in this simple case, because invoicing and payment happened at the same time.

Example 2 — Photographer, wedding deposit

Luca is a wedding photographer. A client books a wedding 8 months ahead and pays a €300 deposit in February. The wedding is in October, with a €900 balance paid on the day (€1,200 total, 17% VAT).

Under the default scheme

• February — Luca issues an advance invoice for €300 (including ~€43.59 VAT) and receives it. €43.59 goes on his February return.
• October — Luca issues the final invoice for the remaining €900 + €153 VAT. The €153 goes on his October return.

Under the cash-basis scheme

Same outcome here, because the deposit and the balance are received at the same times they would be invoiced.

Where cash-basis would help Luca is with late-paying clients. If he invoices €900 + €153 VAT in October but the client doesn’t pay until December, under the default scheme he owes the €153 in October — out of his own pocket until the client pays. Under cash-basis, the €153 is only due in December when the money arrives.

Example 3 — Consultant with late-paying client

Tom is a consultant. He invoices €5,000 + €850 VAT in January. Client pays in April (3 months late).

Under the default scheme

Tom owes €850 VAT in January (invoicing month). He must pay this to the tax authority regardless of whether the client has paid him. Tom is financing his client’s VAT out of his own cash.

Under the cash-basis scheme

Tom owes €850 VAT in April (the month the client actually pays). No cash-flow gap.

For freelancers with slow-paying clients, the cash-basis regime can be a real cash-flow relief.

When should you opt for cash-basis?

Cash-basis usually makes sense if:

• Your clients pay late or unpredictably (B2B consultants, agencies, construction)
• Your turnover is well under €500,000 (above, you cannot use it)
• Your cash flow is tight and you cannot comfortably float VAT for a quarter

The default scheme usually stays fine if:

• Your clients pay on or before invoicing (retail, immediate payment, B2C)
• You have significant purchases — under cash-basis, you wait to deduct input VAT until you’ve paid suppliers, which can slow deductions
• Your accounting is already structured around invoice dates and switching would be disruptive

The choice is a cash-flow choice, not a tax-saving choice. Over a full year, you pay the same total VAT either way. Cash-basis just shifts when it’s due.

Invoicing advance payments

Whether you’re on default or cash-basis, when you receive an advance you should issue a VAT invoice for the advance (sometimes called a “facture d’acompte”). It must contain:

• Your name and address
• Your VAT number
• Client’s name and address (and VAT number for B2B)
• Invoice number and date
• Description (e.g., “advance payment for…”)
• Amount excluding VAT, VAT rate, and VAT amount
• Reference to the underlying contract or quotation

When you issue the final invoice, it should clearly reference the advance invoice(s) and deduct the amounts already invoiced, so VAT is not double-counted.

Practical tip: Keep a separate column in your VAT ledger for advance payments. At year-end, reconcile: all advance invoices should either have been offset by final invoices or still be open on the books.

Common confusion points

• “Pro-forma” invoices don’t trigger VAT — but receipt of money always does. Don’t rely on pro-forma to delay VAT.
• Cash-basis cuts both ways — you delay output VAT, but you also delay input VAT deductions. Factor both into your cash-flow planning.
• The 15th-of-next-month rule — for B2B invoices, VAT is due at the latest by the 15th of the following month from completion, even if you haven’t invoiced yet. Don’t sit on invoices past that date.
• Opting for cash-basis isn’t automatic — you have to write to AED to opt in. Being under €500k alone doesn’t put you on cash-basis.

Quick reference

Related articles

• Taxes for self-employed in Luxembourg
• How to check a VAT number on VIES
• How to cancel or correct an invoice
• What to do when you receive a late invoice

Quiet weeks, busy weeks, late invoices, big wins — you keep going. Bravo for the resilience.
💜💙 Your BravoLisa Team

This article is for general information purposes only and does not constitute professional tax, legal, or accounting advice. Every situation is different — consult a qualified professional (tax adviser, accountant, or lawyer) for advice specific to your circumstances. BravoLisa does not accept liability for decisions made based on this information.

Last updated: September 2026. Rates and thresholds may change — always verify with the relevant authorities for the most current figures.

Sources verified on 11 September 2026: Loi TVA du 12 février 1979 — coordinated text (PDF), eCDF — plateforme de dépôt électronique, AED — Administration de l'enregistrement, des domaines et de la TVA.