You finished the work, you're ready to send the invoice — and now you're staring at a blank line wondering whether you add VAT, how much, and where it even goes on the document. Get it wrong and you either overcharge a client, under-collect tax you'll owe anyway, or send an invoice an accounts team bounces back. The good news: once you know whether you must charge VAT and the four numbers that go on the invoice, it's a sixty-second job. Here's the whole thing, with the actual math.
VAT rates, registration thresholds, and rules vary by country — this is general guidance, not tax advice. Verify with your tax authority or accountant before relying on it.
What VAT actually is
VAT (Value Added Tax) is a consumption tax added on top of the price of goods and services. As a freelancer you're not paying it out of your own pocket — you collect it from the client on behalf of the government and then pass it on when you file. It's a pass-through: the client pays a bit extra, you hold it, the tax authority gets it.
Because it's a pass-through, the headline number on your invoice splits into two parts: what you actually earn (the net) and the tax you're collecting (the VAT). Confusing the two is the single most common mistake freelancers make. If you're still fuzzy on how VAT differs from US-style sales tax, this breakdown clears it up — they are not the same thing and they sit on the invoice differently.
When do you actually have to charge it?
This is the part to settle before you touch the invoice: if you're not VAT-registered, you don't add VAT at all. Your invoice shows your fee and nothing more.
You generally become liable to register (and therefore to charge) when:
- Your taxable turnover crosses your country's registration threshold over a rolling period, or
- You voluntarily register below the threshold (sometimes worth it if you buy a lot of VATable supplies and want to reclaim that input VAT).
Until one of those is true, charging VAT would be incorrect. After it's true, charging it is mandatory. So the decision tree is short:
| Your situation | What goes on the invoice |
|---|---|
| Not VAT-registered | Just your fee. No VAT line, no VAT number. |
| Registered, domestic client | Net + VAT at your standard (or applicable) rate. |
| Registered, cross-border B2B | Often net only, with a reverse-charge note (see below). |
| Some goods/services are exempt or zero-rated | Net only, with the exemption/zero-rate stated. |
The thresholds and what counts toward them differ everywhere, so confirm yours. If VAT is part of a wider tax picture you're still figuring out, start with freelance taxes explained for beginners.
VAT-exclusive vs VAT-inclusive pricing
Once you're registered, decide how you quote prices — this changes the math, not the amount of tax.
- VAT-exclusive ("plus VAT"): you quote the net fee and add VAT on top. A €1,000 fee becomes €1,200 at 20%. Standard for B2B, because business clients reclaim the VAT anyway.
- VAT-inclusive ("VAT included"): the price the client sees already contains the VAT, and you work backwards to find how much of it is tax. Common for B2C, where the customer can't reclaim and wants one clean number.
Always tell the client which one you're quoting. "€1,000" meaning very different things is exactly how disputes start. As a rule: quote B2B exclusive, quote consumers inclusive.
The math (worked example)
Say your fee is €1,000 net and your VAT rate is 20%.
VAT-exclusive (add it on top):
- VAT amount =
1000 × 0.20= €200 - Gross (total) =
1000 + 200= €1,200
VAT-inclusive (extract it from the total):
- You quoted €1,200 including VAT. To find the net:
1200 ÷ 1.20= €1,000 - VAT amount =
1200 − 1000= €200
That divide-by-1.20 step (or 1 + rate for any rate) is where people slip — they wrongly take 20% of the gross and under-report. Our VAT calculator does both directions instantly so you never mix them up, and the invoice tax calculator handles multi-line invoices where each item may carry tax.
How to show VAT on the invoice
A compliant VAT invoice doesn't just show a bigger total — it shows the breakdown so both you and your client (and any auditor) can see exactly what's tax. Include these:
The VAT fields every invoice needs
- 1
Net amount (subtotal)
The fee before tax — what you actually earn. List per line item if there are several.
- 2
VAT rate
The percentage applied, e.g. 20%. State it explicitly; don't make the client infer it.
- 3
VAT amount
The tax in money terms, on its own line. This is the number you'll remit.
- 4
Gross total
Net + VAT — the amount the client actually pays.
- 5
Your VAT number
Mandatory on a VAT invoice. Include the client's VAT number too on cross-border B2B.
Keep net, VAT, and gross visually separate. A common, clean layout: list items at their net amounts, then a subtotal, then a "VAT (20%)" line, then the total. If you're building the document from scratch, making an invoice online walks through every field. Whatever you do, don't bury VAT inside the line prices with no breakdown — that's the version accounts teams reject.
A quick note on reverse charge (cross-border)
Selling to a business in another country adds a wrinkle. Under the reverse charge mechanism (common in B2B sales within blocs like the EU), you don't charge VAT — the client accounts for it in their own country instead. Your invoice then shows the net amount, both VAT numbers, and a note such as "Reverse charge — VAT to be accounted for by the recipient."
This is highly jurisdiction-specific and depends on where each party is and whether it's goods or services, so don't assume it applies — confirm it. If you regularly bill abroad, invoicing international clients covers the wider practicalities (currency, payment terms, and what to put on the document). And whatever the VAT treatment, spell out your payment terms so the total — VAT and all — actually gets paid on time.
The bottom line
Adding VAT is three decisions and four numbers. First, are you registered? If not, you don't add it. If you are: pick exclusive or inclusive pricing, do the math (multiply by the rate to add it, divide by 1 + rate to extract it), and show net, VAT rate, VAT amount, and gross clearly — with your VAT number on the document. For cross-border B2B, check whether reverse charge applies and note it. Get those right and your invoices are correct, payable, and audit-proof.
Get the VAT math right every time
Tuplify's free VAT calculator adds or extracts VAT in both directions in one click — then generate an invoice that shows net, VAT, and gross correctly, with your VAT number, in seconds.
Try the free VAT calculator