Setting the Right Advance Invoice Amount: When and How Much to Request?

Many Swiss SMEs and freelancers issue advance invoices without thinking it through — 30 percent sounds reasonable, so they go with 30 percent. But the right advance amount depends on the project type, your cash flow situation, and customer risk. Taking a one-size-fits-all approach either sacrifices security or risks unnecessary friction with clients.

What an advance invoice should accomplish

A deposit serves two purposes at once: it secures your cash flow during the project, and it signals to the client that they've made a binding commitment. Both goals influence how high the amount should be.

Starting a project without upfront payment means you carry the entire financial risk until the final invoice. On a CHF 20,000 contract running three months, that can mean fronting wages, materials, or freelancer fees — while the client hasn't paid a cent yet.

Benchmarks by project type

There is no legally prescribed advance invoice amount in Switzerland. What has proven effective in practice:

Project Type	Typical Advance Amount	Rationale
Material-intensive (trades, construction)	40–50 %	Material purchases needed upfront
Knowledge-based (consulting, IT, design)	20–30 %	Lower upfront costs
Standard product / one-off order	100 %	No inventory risk
Year-long project with milestones	10–20 % per phase	Distribute cash flow security
New client without references	30–50 %	Higher default risk

These figures are guidelines, not rules. What matters is how much actual upfront work your contract requires.

Three concrete factors that determine the amount

1. Your own upfront costs

Calculate what costs you'll incur before the first billable deliverable: materials, licenses, external contractors, travel. This sum should at minimum be covered by your advance invoice. If your material costs are CHF 8,000 and the total contract is CHF 25,000, the advance should be at least CHF 8,000 — roughly 32 percent.

2. The client's payment behaviour

With long-standing customers who consistently pay on time, you can set a lower advance or skip it entirely. With new clients, those with known cash flow problems, or unusually large orders, a higher advance is justified. For guidance on what to do if payment falls through, see our Swiss dunning process guide.

3. Payment terms and project duration

The longer a project runs, the more important it is to manage cash flow with advance invoices. For a six-month project, a model with multiple advance stages (e.g., 30 % on order confirmation, 30 % at the midpoint, 40 % on completion) often works better than a single upfront payment.

What the contract must state

The advance amount alone isn't enough. Critical details include:

• Due date: When is the advance due — immediately upon order confirmation, or within 10 days?
• Work start: Do you begin only after payment arrives, or upon confirmation?
• Credit: How is the advance shown and credited on the final invoice?
• Refund: What happens if the order is cancelled?

Settling these points in your quote or contract protects both sides and prevents later disputes. Our freelance invoicing guide offers additional practical tips on this.

VAT: A brief note on tax liability

If you're VAT-liable, tax liability generally attaches at the moment of receipt — including for advance invoices. The advance is invoiced at the applicable rate (8.1%, 2.6%, or 3.8%). On the final invoice, it's then credited, so there's no double taxation overall. The exact accounting logic is a separate topic covered in detail elsewhere.

Practical implementation: Creating the invoice

Once you've set your advance amount, creating the invoice is straightforward. You can generate an advance invoice with a Swiss QR-bill directly in the SnapBill app, complete with correct VAT declaration and automatic numbering. Important: clearly mark the invoice as "Advance Invoice" or "Deposit" and state the total contract value so the client sees the full picture.

Common mistakes with advance amounts

• Setting it too low out of hesitation: Many freelancers fear asking for a substantial advance, worried they'll scare the client away. In reality, a clearly justified advance signals professionalism.
• Using a round percentage without calculation: 30 % sounds good, but may not even cover your upfront costs.
• No due date specified: Without a payment deadline, the advance often arrives just before the project starts — too late for material procurement.
• No clause for early termination: What happens to the advance if the client cancels after payment? This must always be in writing.

At a glance

• The right advance amount depends on your upfront costs, customer risk, and project length — blanket percentages are a starting point, not the answer.
• For material-intensive work, the advance should ideally cover the purchase amount; knowledge-based projects often need just 20–30 %.
• Terms on due date, work start, and refunds belong in the contract or quote — not just on the invoice.
• Multiple advance stages across longer projects usually beat one large upfront payment.
• VAT-liable parties must show the advance at the correct tax rate and credit it on the final invoice.