# How Costs spread over time are calculated

To help you plan your budget evenly across the years, the system spreads the cost of each task over the years leading up to when it is due.  
This approach ensures that funding is collected gradually, so the full amount is available when the task needs to be completed.

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**Example: servicing task due in 2030**

Let’s say you create a **servicing task** that:

- Has a **next due date** of **2030**, and
- Costs **$1,000** to complete.

Since the maintenance plan for **2025** has already been approved, the system begins spreading the cost from **2026** up to **2029** — the four years leading up to 2030.

## Step 1: divide the cost across the period

The total cost of **$1,000** is divided evenly over 4 years:

<span class="katex-display"><span class="katex"><span class="katex-mathml">$1,000 ÷ 4 = $250</span></span></span>

Each year from **2026 to 2029** receives **$250**, so by the start of 2030, the full amount has been collected.

<div class="_tableContainer_1rjym_1" id="bkmrk-year-allocation-cumu"><div class="group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse" tabindex="-1"><table class="w-fit min-w-(--thread-content-width)" data-end="1467" data-start="1217"><thead data-end="1257" data-start="1217"><tr data-end="1257" data-start="1217"><th data-col-size="sm" data-end="1224" data-start="1217">Year</th><th data-col-size="sm" data-end="1237" data-start="1224">Allocation</th><th data-col-size="sm" data-end="1257" data-start="1237">Cumulative Total</th></tr></thead><tbody data-end="1467" data-start="1300"><tr data-end="1341" data-start="1300"><td data-col-size="sm" data-end="1307" data-start="1300">2026</td><td data-col-size="sm" data-end="1321" data-start="1307">$250</td><td data-col-size="sm" data-end="1341" data-start="1321">$250</td></tr><tr data-end="1383" data-start="1342"><td data-col-size="sm" data-end="1349" data-start="1342">2027</td><td data-col-size="sm" data-end="1363" data-start="1349">$250</td><td data-col-size="sm" data-end="1383" data-start="1363">$500</td></tr><tr data-end="1425" data-start="1384"><td data-col-size="sm" data-end="1391" data-start="1384">2028</td><td data-col-size="sm" data-end="1405" data-start="1391">$250</td><td data-col-size="sm" data-end="1425" data-start="1405">$750</td></tr><tr data-end="1467" data-start="1426"><td data-col-size="sm" data-end="1433" data-start="1426">2029</td><td data-col-size="sm" data-end="1447" data-start="1433">$250</td><td data-col-size="sm" data-end="1467" data-start="1447">$1,000</td></tr></tbody></table>

</div></div>> **Note:** We do not include 2030 itself, because the cost needs to be fully collected *by the time* the task is due.

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## Step 2: next period (2030–2034)

After the 2030 servicing is complete, the next cycle begins — the next servicing is due in **2035**.

The cost for this future servicing is **adjusted for inflation**.   
With an inflation of 3.3%, the inflation adjustment increases the cost to **$1,176**, the system now spreads that cost evenly across **five years** (2030–2034):

<span class="katex-display"><span class="katex"><span class="katex-mathml">$1,176 ÷ 5 = $235.25</span></span></span>

Each year from **2030 to 2034** receives **$235.25**, ensuring another full cycle of cost collection before 2035.

<div class="_tableContainer_1rjym_1" id="bkmrk-year-allocation-cumu-1"><div class="group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse" tabindex="-1"><table class="w-fit min-w-(--thread-content-width)" data-end="2377" data-start="2085"><thead data-end="2125" data-start="2085"><tr data-end="2125" data-start="2085"><th data-col-size="sm" data-end="2092" data-start="2085">Year</th><th data-col-size="sm" data-end="2105" data-start="2092">Allocation</th><th data-col-size="sm" data-end="2125" data-start="2105">Cumulative Total</th></tr></thead><tbody data-end="2377" data-start="2168"><tr data-end="2209" data-start="2168"><td data-col-size="sm" data-end="2175" data-start="2168">2030</td><td data-col-size="sm" data-end="2189" data-start="2175">$235.25</td><td data-col-size="sm" data-end="2209" data-start="2189">$235.25</td></tr><tr data-end="2251" data-start="2210"><td data-col-size="sm" data-end="2217" data-start="2210">2031</td><td data-col-size="sm" data-end="2231" data-start="2217">$235.25</td><td data-col-size="sm" data-end="2251" data-start="2231">$470.50</td></tr><tr data-end="2293" data-start="2252"><td data-col-size="sm" data-end="2259" data-start="2252">2032</td><td data-col-size="sm" data-end="2273" data-start="2259">$235.25</td><td data-col-size="sm" data-end="2293" data-start="2273">$705.75</td></tr><tr data-end="2335" data-start="2294"><td data-col-size="sm" data-end="2301" data-start="2294">2033</td><td data-col-size="sm" data-end="2315" data-start="2301">$235.25</td><td data-col-size="sm" data-end="2335" data-start="2315">$941.00</td></tr><tr data-end="2377" data-start="2336"><td data-col-size="sm" data-end="2343" data-start="2336">2034</td><td data-col-size="sm" data-end="2357" data-start="2343">$235.25</td><td data-col-size="sm" data-end="2377" data-start="2357">$1,176.25</td></tr></tbody></table>

</div></div>---

## Summary

- Costs are spread **evenly** across the years **before** a task’s due date.
- The due year itself is **not included**, so the funds are ready at the start of that year.
- For future cycles, the cost is **adjusted for inflation** and **spread over the new period** until the next due date.

This ensures your maintenance plan always remains balanced, predictable, and financially sustainable.