Recurring Invoices in Switzerland: Avoid Common Subscription Billing Mistakes
Issue recurring invoices correctly for subscriptions and ongoing services — required fields, VAT pitfalls and best practices for Swiss SMEs.
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When you invoice the same service regularly — monthly hosting, a maintenance contract, software subscriptions — it's easy to lose track: Was invoice no. 2024-047 already paid? Is the VAT rate still correct? Was the price increase communicated properly? These are exactly where the costliest mistakes happen with recurring invoices. This article shows you what to watch for so your periodic invoices stay legally sound and bookkeeping-problem-free.
What is a recurring invoice anyway?
A recurring invoice (also called a periodic invoice or subscription invoice) bills a service that repeats at regular intervals — monthly, quarterly or annually. Typical examples include:
- IT support contracts with monthly flat rates
- Tax consulting annual subscriptions
- Accounting software as a service (SaaS)
- Cleaning services on contract basis
- Coworking memberships
Legally, a recurring invoice is not a special invoice type. It must contain the same required fields as any other invoice — yet it has specific pitfalls all its own.
The most common mistakes with recurring invoices
1. Service period missing or vague
With a one-off service, the invoice date alone often suffices as reference. With recurring services, you must explicitly show the service period: "Monthly support fee June 2026 (01.06–30.06.2026)". Without this detail, your customer cannot allocate the invoice correctly in their accounts — and your own bookkeeping becomes error-prone.
2. VAT rate not updated after rate change
Swiss VAT rates have been set since January 2024: 8.1% (standard rate), 2.6% (accommodation special rate) and 3.8% (special rate). Anyone copying an invoice template from 2023 is still working with 7.7%. That sounds minor, but on an annual invoice of CHF 60,000 it's a CHF 240 difference — one your VAT account won't reconcile with your bank statement. For more on current rates and special rules, see our guide to Swiss VAT basics 2026.
3. Missing or outdated invoice numbering system
Every invoice — even if identical in content to the previous month — needs a unique, sequential invoice number. A copy with the same date and number is not a valid document. Many freelancers use notation like 2026-06-CLIENT-01 for subscriptions, which is clear, but remember: the number must be systemwide unique, not just per client.
4. Contract changes not reflected on the invoice
Did the customer upgrade to a higher subscription tier? Was an add-on service activated? Many invoicers forget to update the service description — they just send the same template. This confuses the customer and can cause problems during a VAT audit by the SFTA.
5. No QR-bill for CHF payments
Since orange and red payment slips were discontinued, the QR-bill is mandatory for structured payments in Switzerland. If you send the same monthly invoice as a PDF and only paste an IBAN below without a QR code, you're inviting payment delays. A correct QR-bill with all required fields measurably speeds up payment — especially since many customers now scan directly in e-banking.
Best practice: set up recurring invoices correctly
Define your template once, properly
Before you issue your first subscription invoice, define a template with all required fields:
| Field | Example |
|---|---|
| Invoicer | Max Muster GmbH, Musterstrasse 1, 8000 Zurich |
| UID number | CHE-123.456.789 VAT |
| Invoice date | 22.06.2026 |
| Invoice number | 2026-047 |
| Service period | 01.06.2026 – 30.06.2026 |
| Service description | Monthly IT support flat rate (Contract no. X) |
| Net amount | CHF 500.00 |
| VAT 8.1% | CHF 40.50 |
| Total amount | CHF 540.50 |
| QR-bill | with QR-IBAN or IBAN |
Automation vs. manual review
Many accounting tools let you "duplicate" an invoice and increment the date. It saves time, but risks letting price changes, VAT updates or service changes slip through unnoticed. Recommendation: automate invoice creation, but build in a 2-minute monthly check: Is the amount correct? Is the description current? Is the VAT rate right?
Track payment receipt systematically
With subscriptions serving many customers, you'll quickly lose sight of who's paid without tracking. Set a clear due date for each subscription invoice in your accounting or invoicing tool. If payment doesn't arrive, follow standard dunning procedures — reminder, first notice, second notice. The Swiss dunning process guide explains this in detail.
Advance payment or arrears — what makes sense?
Both models are allowed. With advance-payment subscriptions (e.g., annual subscription in January), you create a deferred revenue liability bookkeeping-wise — you've received money but haven't fully delivered the service yet. You must account for this correctly at year-end. With monthly arrears billing, this problem disappears, but you carry collection risk.
Rule of thumb: For reliable repeat customers, arrears billing works well. For new customers or annual subscriptions with discount incentives, advance payment is preferable — possibly combined with partial payment for very large amounts.
Recurring invoices and VAT: what applies to multi-year contracts?
If you sign a multi-year contract and invoice annually, the VAT rate applies at the time of service delivery, not at contract signing. This was relevant when rates rose on 1 January 2024. Existing contracts had to be invoiced at new rates for services from 2024 onwards — even if the contract still said "7.7%". For long-term contracts, review the VAT clause: does it include an adjustment clause for rate changes?
Issue recurring invoices directly — no extra work
If you want to issue your monthly subscription invoices complete with QR-bill quickly and correctly, you can do so directly with SnapBill's online invoice generator — all required fields are pre-filled and the QR code generates automatically.
At a glance
- Service period on every recurring invoice must be explicit
- VAT rate review every template (currently: 8.1% / 3.8% / 2.6%)
- Unique invoice number even for copies from the previous month
- QR-bill for CHF invoices is mandatory, not optional
- Service description update immediately when contract changes
- Payment receipt track systematically, note dunning dates
- For advance payments: don't forget correct deferred revenue treatment at year-end
Frequently asked
Must I assign a separate invoice number for each month?
Yes, every invoice needs a unique invoice number — even if content and amount are identical. This applies both to SFTA requirements in a VAT audit and to accounting traceability. A copy of the previous month's invoice with a changed date but the same number is not a valid document.
What happens in my accounts if I invoice an annual subscription in advance?
When you receive advance payment for an annual subscription, book the amount initially as a liability (deferred revenue). Month by month, reverse this liability as you deliver the service. Only the portion of service already delivered may appear as income in your profit and loss statement. Your accountant can explain the correct booking sequence in detail.
How do I correctly show a discount for a long-term subscription on the invoice?
The discount should appear as a separate deduction line on the invoice, not baked into the price. Show the list price, the percentage or absolute discount, and the resulting net amount. This makes the VAT base clearly traceable and the customer sees the value of their subscription transparency.
May I send recurring invoices by email as PDF, or do I need eBill?
PDF by email remains permitted in Switzerland. eBill is not a legal requirement for private recipients, but an optional standard. Many business customers prefer eBill because the invoice appears directly in their e-banking. Ask regular customers actively — eBill adoption rates are rising steadily.
When must I issue a credit note on an ongoing subscription?
A credit note is needed if you failed to deliver a billed service in full or part, a subscription is cancelled early and you refund a pro-rata amount, or a billing error must be corrected. The credit note must reference the original invoice number and mirror the original invoice's VAT structure.
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