Free start
Free
First pre-check free, up to 20 invoices
No card needed. Just a business email.
Try one pre-check freeBefore the VAT return
Check your input VAT before you file the return.
Choose the quarter and upload the purchase invoices of that period. You see which input VAT you can deduct, which you cannot and which invoices need a closer look, with totals per rate and an Excel file.
No card needed. Just a business email.
What we check
Every purchase invoice of the period, against the rules for deducting input VAT.
- Supplier registered for VAT in the federal UID register
- VAT number shown on the invoice
- VAT rate valid on the invoice date (8.1%, 2.6% and 3.8% since 2024, the earlier rates for older invoices)
- VAT amount matches the rate
- Duplicates, counted only once
- Invoice date inside the chosen period
- Mandatory details present: supplier, date and amounts
| VAT rate | Net | Input VAT |
|---|---|---|
| 8.1% | CHF 31’240.00 | CHF 2’530.44 |
| 2.6% | CHF 1’860.00 | CHF 48.36 |
| 3.8% | CHF 420.00 | CHF 15.96 |
- Deductible input VAT
- CHF 2’594.76
- Not deductible
- CHF 81.00
- Invoices to check
- 2
- Muster Holzbau AG · 03.03.2026Deductible
VAT CHF 364.50 at 8.1%
- Transports Exemple SA · 10.03.2026Not deductible
VAT CHF 81.00
The supplier is not registered for VAT.
- Cartoleria Esempio SA · 12.02.2026To check
VAT CHF 15.40
A rate of 7.7% is no longer valid on 12.02.2026 (8.1% since 01.01.2024).
Who it is for
Businesses that file VAT with the effective method.
- SMEs that prepare their own VAT return
- Businesses that want to hand clean figures to their fiduciary
- Anyone who wants to see weak points before a VAT audit does
Prices
You start with a free account. Packs and plans are bought inside your account, by card through Stripe.
One period
CHF 79one-off
One quarter, up to 500 invoices
Paid once, no subscription.
Four periods
CHF 249one-off
Four quarters, up to 500 invoices each
Paid once, no subscription.
Included in every plan
- Every check listed above
- Deductible input VAT per rate (net and VAT), plus the totals not deductible and to check
- Excel download with a “Summary” sheet and an “Invoices” sheet
- Up to 500 invoices per period
Prices in CHF. No VAT is charged.
Questions
Which periods can I check?
Any quarter that has started, up to five years back: you choose the quarter and the year, then upload the purchase invoices of that period. Invoices dated outside the period are flagged.
Does Klyrenta file the VAT return for me?
No. You or your fiduciary file the return with the Federal Tax Administration as before. The pre-check gives you the figures and the list of invoices to look at.
I use the net tax rate method. Is this for me?
Probably not: with the net tax rate method (Saldosteuersatz) input VAT is not deducted. The invoice check can still catch duplicates and changed bank details.
What does “to check” mean?
Something prevents a clear answer, for example a rate that does not fit the date, a missing VAT number or a register that could not be reached. The reason is shown for every invoice.