Service charge statement calculator
Enter your units, tenancies, prepayments and costs. The calculator splits every cost between the tenancies and shows each tenant's share and balance, plus any missing reading or split that still needs your input.
Test phase: enter sample figures, not real tenant data. PDF statements and pricing follow once the country rules are reviewed.
| Tenancy | Share | Prepaid | Balance |
|---|---|---|---|
| Unit A | €1,744.27 | €1,800.00 | −€55.73 |
| Unit B | €2,340.73 | €2,100.00 | €240.73 |
The two shares add up to exactly €4,085.00. Unit A gets €55.73 back, Unit B owes €240.73.
Build one residential property project, confirm every source value and check how each cost is split between the tenancies. Separate country modules keep terminology, checks and calculation versions apart.
Synthetic property with two units, three costs and a full 2025 period, one package per country.
THREE STEPS
Enter the property, units, tenancies, prepayments and costs, or create the prepared sample.
See each tenancy's share, prepayments and balance, to the cent.
Missing readings, splits or move dates show up as blockers you can fix one by one.
Three synthetic country examples
Choose a country to view a fixed example generated by the current deterministic calculation core. The country never changes from an IP address; browser language can only show a suggestion.
Country selection stays under your control.
Reproducible result
Result 17cb022fbbf3…| Unit | Allocated | Prepaid | Balance |
|---|---|---|---|
| Unit A | €1,744.27 | €1,800.00 | −€55.73 |
| Unit B | €2,340.73 | €2,100.00 | €240.73 |
Ten controlled steps
Each heating or warm-water line requires an explicit base/consumption split and confirmed readings. A missing percentage, meter value or allocation base blocks finalization. The system does not silently substitute a country default.
Separate versioned modules
The calculation core is shared. Country-specific cost categories, required information, terminology and heating rules remain isolated and versioned.
German and English output. The release review must cover BGB, BetrKV, HeizkostenV, CO₂ cost allocation and 25 confirmed reference cases.
German and English output. Austria receives its own reviewed module; it is not copied or inferred from German rules.
Dutch and English output. Dutch service-cost terminology and information duties remain in a separate reviewed module.
Coming after the country review
These files are not produced yet. They become available once the country rules have been reviewed and pricing is set. The sample package in the example above shows the calculation as CSV, TXT and JSON files.
Privacy and responsibility
Names, addresses, contact fields, project details and source documents use application-level encryption. Source files run through a separate rental worker without public internet access or an external AI/API. Temporary cleartext is limited to worker memory and temporary storage and is removed after processing.
Encrypted projects remain in the active account until the user deletes them. Download packages expire after 24 hours and can be rebuilt from the immutable snapshot. WoluTools is not promoted as a statutory evidence archive.
Questions
Precise answers about country scope, confirmation, encryption, rounding and the current service limits.
Today it creates a calculation preview for each tenancy from test data you enter: allocated costs, prepayments, balance, blockers and warnings. Bilingual statements, the XLSX report and the audit package are planned, but they stay locked until the country rules have been reviewed and pricing is set.
The service contains separate versioned modules for Germany, Austria and the Netherlands. Country-specific results remain technical guidance and require appropriate legal or tax review before use.
No. Extraction can suggest invoice fields, but the user must confirm every amount, category and allocation choice. The tool does not interpret rental contracts or replace legal or tax advice.
Heating and warm-water components use an explicit confirmed split and confirmed readings. Missing percentages, consumption data or required confirmations become visible blockers instead of guessed values.
The country is locked after the first unit, tenancy or cost entry. Switching country creates a separate property project so that rule versions and terminology cannot be mixed.
Money is calculated in integer cents. A stable largest-remainder method assigns every cent reproducibly, and tenant plus landlord shares must add up exactly to the confirmed total.
Application fields and source documents are encrypted. Temporary cleartext exists only during limited worker processing; generated download packages expire after 24 hours while the encrypted project remains until the account user deletes it.
No. WoluTools is a calculation and documentation aid, not a statutory document archive. Landlords must keep required original records independently.
No. The workspace is a technical test and accepts synthetic test data only. The country rules have not been reviewed by a legal or tax expert yet, so do not enter real tenant data and do not use the preview as a statement.
Start with your units
The prepared country examples are free and need no account. The calculator takes sample figures during the test phase; results are technical guidance, not legal or tax advice.