Ground-up development accounting is different from rental property accounting because you are building an asset over time rather than operating one. Everything flows through work-in-progress on your balance sheet until the project is complete, and tracking costs against your budget by category is what keeps a project from going sideways.

Development starts when you acquire the land. The purchase price, closing costs, and any site work needed before construction begins all get capitalized to the project. So do soft costs like architecture, engineering, permits, legal fees, and entitlement work. These are not operating expenses. They are part of building the asset and stay on your balance sheet as part of the project cost.

Once construction starts, you are drawing against a construction loan. Each draw needs to tie to actual work completed and invoices from your general contractor and subcontractors. Your books should match every draw to the invoices it covers, so you always know what portion of the loan has been funded and what remains. Lenders require this documentation anyway, but clean development and land accounting also gives you a real-time picture of where construction stands financially.

During construction, carrying costs get capitalized to the project rather than expensed. This includes interest on your construction loan, property taxes, insurance, and HOA fees if applicable. These costs are part of what it takes to build the asset, so they belong in the project cost until you complete construction and place the asset in service.

All of these costs accumulate in a work-in-progress account. WIP is how the asset builds over the life of the project. You do not have income or profit to report from the project while it is in WIP. You have an asset under construction.

Development budgets break into categories: land, hard costs for construction, soft costs for professional fees and financing, and contingency. Your accounting should track actual costs against budget in each category as the project progresses. This is how you catch overruns early and know whether your contingency is holding. If hard costs are running 8% over budget at 60% completion, you need to know that now rather than when the loan runs dry.

When construction finishes and you receive your certificate of occupancy, the project is placed in service. At that point, WIP converts to a fixed asset. If you are holding the property as a rental, depreciation starts. If you are selling, you will recognize gain or loss based on the total capitalized cost. The accuracy of your WIP tracking determines whether that basis is correct.

Working with a real estate accounting firm that understands development accounting from the start helps you avoid reconstructing records later and keeps your numbers ready for lenders, investors, and your tax return throughout the project.