Back to Engine

1.1Allocation engine

One expense. Each apartment’s share.

Building rules, shares and meter readings become apartment charges. Check each amount and explain how it was calculated.

See how it works

Cleaning

Patision 142 · Apr 2026

€180.00

Allocation method
Ownership shares
Allocated total
€180.00

A1 · 250‰

€45.00

B2 · 350‰

€63.00

Γ1 · 400‰

€72.00

The rules behind every charge.

Set up the building

Run the allocation

Expense categories

Patision 142

Common expenses

Ownership shares

Heating

Central heating

Category rules

Choose an allowed allocation method for each expense category. The building keeps its own configuration.

A repeatable close. Room for review.

Start with the period’s expenses. Nestio applies the building’s allocation rules and prepares draft bills for review.

Check the apartment amounts before finalizing. Building settings stay available for the next period.

Billing period

Patision 142 · Apr 2026

  1. 01Add expenses
  2. 02Allocate & generate
  3. 03Preview
  4. 04Finalize

The product principle

Every apartment amount starts with a building rule and a recorded expense.

See how the total was divided.

See each apartment’s share alongside its allocated amount, with the original expense as the starting point.

Apartment allocations

Common electricity · €386.20

ApartmentOwnership sharesAmount
A1250‰€96.55
B2350‰€135.17
Γ1400‰€154.48

Split the electricity bill by category.

Divide a DEI bill between common expenses and the elevator, using the building’s configured percentages. Each category then follows its own apartment allocation method.

Electricity allocation

€386.20

Common expenses · 70%

€270.34

Elevator · 30%

€115.86

Let floor factors do their part.

For elevator expenses, use the configured floor-based method instead of assuming every apartment contributes equally.

Floor factors

Elevator

A1 · × 0.60

€84.00

B2 · × 1.20

€98.00

Γ1 · × 1.80

€112.00

A correction with a clear record.

Keep the original charge, correction credit and adjusted amount distinct.

Correction

B2 · Cleaning

Original charge
€63.00
Correction credit
-€8.00
After correction
€55.00

The result reaches the bill.

Apartment allocations become bill lines, grouped by category. Carry the calculation through to the notice the resident receives.

Bill lines

B2 · Apr 2026

Cleaning

€63.00

Common electricity

€94.62

An amount you can explain.

Follow a charge back to the expense and the apartment’s allocation.

Reuse category settings and focus on the inputs that change each period.

D. Alexiou

Apartment B2 · Apr 2026

Cleaning

€63.00

Source expense
€180.00
Ownership shares
350‰

Heating

€360.00

Source expense
€1,200.00
Consumption
300 kWh

Previous 1800 → Current 2100 kWh

Make the next allocation easier to explain.

Allocation engine for building expenses | Nestio