About us

CostSegBNB was built by John Tillman — a CPA, Mechanical Engineer, and short term rental tax specialist. Cost segregation studies need both tax judgment and engineering judgment, and most tools only bring one. CostSegBNB grew out of TaxHelp.realestate, a firm focused on short term rental accounting, tax, and analysis, where it became clear there was no quick way to estimate cost seg savings from photos — so we built one. Our proprietary database now includes over 5,000 detectable home features with 95% recognition accuracy.

We look forward to serving you while we keep growing our proprietary database and advancing the image recognition tools behind tax and accounting.