What Is Allowance (Provisional Sum/Prime Cost Sum) in Construction?
Allowances are budgeted amounts set aside for materials, labor, or other expenses that have not been determined at the time of estimating a project. They serve as placeholders in your construction budget until the actual costs can be determined.
💡Recommended Reading: Construction Allowances 101: 4 Effective Practices for Budget Management
Your work with allowances in Buildern starts with the estimates, so head to your project’s Estimate section.
Click Add Item > Allowance to begin.
Start filling in the details. Buildern allows you to define the allowance type by choosing from:
Materials
Labour
Equipment
Subcontractor
Fee
You can choose one or several options to customize. Note, that whatever you choose here will be later displayed in your proposal.
Next is to set the cost code for easier categorization within the system and add all the details regarding the area and pricing.
Add Markup to Your Allowances
Buildern allows you to add a markup to the allowances, which will be later reflected across your proposal, invoices, and other financial documents.
You can choose a markup type from:
None
Fixed amount
Fixed amount per unit
Fixed percentage
Buildern simplifies invoicing by automatically calculating the differences between the set allowance and actual costs.
Let’s consider an example to illustrate how this works:
Suppose you have set an allowance of $10,000 with a markup of 30%. If the actual spending for the allowance turns out to be $15,000, Buildern allows you to invoice the client for the difference - in this case, $5,000 + a 30% markup to cover the builder's margin, totaling an invoiced amount of $6,500.
💡Recommended Reading: What Are Selected Price and Actual Price in Selections
Conversely, if the actual cost was only $7,000, the system allows for flexible handling of the negative allowance difference. You can configure Buildern to either retain the markup on the negative allowance difference or remove it. If the system is set to keep the markup, the allowance difference will be $3,000. If the markup is not kept on the negative difference, the allowance difference will be $3,900.
HINT: Go to the Estimate > Current project settings > Customize the negative allowance difference according to your preferences (See the steps shown below).
Once you finish and save the allowance, you will see a corresponding icon appearing next to the estimate item added. This ensures that you always differentiate your estimate line items.
That’s it!
Now that you have an allowance you can continue working with Buildern creating change order/variations from allowance differences or invoices and selections.





