Your ancillary cost statement, done in one evening.
Enter the costs and meter readings, and you are done. The tool allocates heating, hot water and other ancillary costs under the Swiss CO and VMWG and creates a PDF with a QR payment slip for every tenant.
Linden Lane apartments
Ground floor · 85 m²
01.01.–31.12.2025
| HeatingHeat pump electricity | 916.55 |
| Hot waterby meter | 308.75 |
| OtherWater / wastewater | 400.60 |
| OtherCaretaker, garden, common electricity | 1'206.00 |
| Administration fee 3 % | 84.95 |
| Total your share | 2'916.85 |
| less advances 12 × 200.00 | −2'400.00 |
- Account
- CH44 3199 9123 0008 8901 2
- Reference
- RF18 5390 0754 7034
- Amount
- CHF 516.85
Three steps to sending
Enter
Enter the property, units, tenants and receipts. The tool guides you step by step, with hints for every item.
Check
You immediately see who pays how much, whether everything is allocated and where values are missing. With previous-year comparison and advance payment proposal.
Send
One PDF per tenant with a QR payment slip, plus Excel for your accounts. Electricity and ancillary costs in one letter if you wish.
Everything a clean statement needs
Built by a landlord who uses it for his own apartments.
Every heating type
Heat pump, oil, gas, pellets, wood chips, district heating. With matching items, receipt checklist and fuel stock.
Degree days and interim readings
Heating costs by heating degree days, other costs by days. Vacancy is borne by the landlord.
Private meters and ZEV
Electricity statement per apartment by meter, also within a self-consumption community with solar power.
Laundry room and own work
Coin meter, common water and a work report for caretaking, garden and winter service.
Residential, office or industrial
You choose the property type and the tool adapts the steps and typical costs. Weighted areas and VAT for commercial premises.
Ready to pay
Swiss QR Code with a reference per tenant. For credits, the request for the IBAN is added automatically.
Handover, receipts, payments
Handover report with photos, meter readings and signature. Digital receipts folder, payment tracking with bank import and reminders.
Rent calculator and lease clause
Calculate reference rate, inflation and cost increases under VMWG. Generate an ancillary costs clause for the lease.
Legal check and explanation sheet
A traffic light checks the key points before sending. An explanation sheet for tenants and a cost comparison over several years.
The rules are built in
The tool follows the provisions for residential and commercial premises and warns you about typical mistakes.
More than a template, simpler than property management software
Made for private landlords who prepare their statements themselves.
| Criterion | Template or Excel | Property management software | Nebenkosten Rechner |
|---|---|---|---|
| Made for | Any use | Property managers and trustees | Private landlords in Switzerland |
| Tenant change and vacancy | By hand | Usually included | Heating degree days by postcode, vacancy automatic |
| QR bill per tenant | No | Yes | Yes, with reference |
| Legal check (CO and VMWG) | No | Varies | 9 points before sending |
| Payments and reminders | By hand | Yes | Bank import (camt) and reminder levels |
| Getting started | Immediate, but manual calculation | Account and master data setup | In the browser, no account |
| Your data | On your device | In the provider's cloud | On your device |
| Cost | Free to a few francs per document | Price often on request | CHF 39 per year, free to try |
Example: building with 4 flats: CHF 39 per year, i.e. CHF 9.75 per tenant statement, QR bill included.
You only pay for your properties
Trying it is free. For valid statements you buy an annual licence: the first property costs CHF 39, each additional one CHF 19.90.
Free
- Enter and calculate one property
- All amounts per tenant visible
- Example with three apartments to try out
- Statement with watermark
- PDF only as a sample, without QR payment part
How many properties do you bill?
- PDF statements without watermark
- QR payment slip for every tenant
- Heating, electricity and work report PDFs, Excel export
- Usable on all your devices
Pay securely with TWINT, card, Apple Pay or Google Pay via Stripe. The tool is unlocked immediately after payment. The licence renews every year and can be cancelled at any time.
Good to know
Where is my data stored?
Only in your browser on your device. We have no server for your statements and see no data. Under «Law and data» you can save a backup file at any time, which also lets you move the data to another device.
What counts as a property?
A building with its own ancillary cost statement, however many apartments or offices it has. The statement periods of later years belong to the same property and cost nothing extra.
I live in one of the apartments myself. Is that possible?
Yes. Enter your apartment as «own use». Your share is calculated and shown as the landlord's share, so the tenants pay exactly their part.
Can I also bill offices and commercial premises?
Yes. For each unit you choose the use and, if needed, an area factor, for example 0.5 for storage. If you have opted for VAT, the tool adds it for these units.
How do I get the full version?
Tap «Full version» in the tool or buy it here under Pricing. Pay with TWINT or card. Stripe then takes you back to the tool and the preview becomes the full version immediately. Your data is kept.
Is this legal advice?
No. The tool is a calculation aid based on the provisions of the CO and VMWG. Your lease and receipts are decisive. If in doubt, your homeowners' association or a specialist can help.
Try it with the example.
A three-apartment building with heat pump, tenant change and electricity meters is already filled in.