Tax — We've Seen What You're Missing
15–30% of deductions go unclaimed on most portfolios. Licensed CPAs and engineers stamp every study.




Your agent will start recovering these savings automatically once ready
Individual real estate investors who work at iconic companies trust Overline to protect their returns.


































Backed by Y Combinator and top VCs. Built by operators from Stanford and PE, with licensed CPAs and engineers overseeing.



15–30% of deductions go unclaimed on most portfolios. Licensed CPAs and engineers stamp every study.
We benchmark premiums against live market data and flag gaps before a claim.
We shop for better rates and flag refinance opportunities across your portfolio.
Licensed CPAs and engineers at every stage — IRS-defensible and lender-ready.
For tax, insurance, and other real estate savings — or any questions — reach out to us at support@overlineiq.com and we'll get back to you soon.
What investors say about keeping more of what they earn.
Everything you need to know about how Overline works.
Overline is an AI agent built for real estate owners. It runs continuously in the background — handling tax optimization (cost segregation, depreciation, REPS hour tracking), insurance benchmarking, financing optimization (rate monitoring, refinance opportunities), and liability compliance — so you stop leaving money on the table across the three biggest silent cash flow killers in real estate. Instead of piecing together CPAs, insurance brokers, lenders, and attorneys yourself, Overline handles the coordination automatically.
Most investors only claim depreciation when they buy a property. Your agent finds deductions upfront through cost segregation, plus ongoing savings every time you renovate, replace appliances, or improve the property. It connects to QuickBooks to automatically identify deductible expenses you might overlook — and every study it produces is verified by a licensed engineer and CPA before going to your return.
Cost segregation is an IRS-approved strategy that accelerates depreciation by reclassifying parts of your property (flooring, fixtures, landscaping, etc.) into shorter depreciation schedules — 5, 7, or 15 years instead of 27.5 years. This front-loads your tax deductions, often generating $15,000–$50,000+ in year-one savings on a typical rental. Overline estimates your potential benefit for free, so you know if it's worth it before committing to a full study — and every study we produce is verified and stamped by a licensed engineer and CPA, so the numbers are IRS-defensible and CPA-ready. See actual savings by property type or use our decision framework to evaluate your ROI.
Insurance premiums creep up every year while coverage gaps put you at risk. Your AI agent benchmarks your rates against a carrier network to catch overcharges, and uses your cost segregation asset inventory to document property values — which speeds up claims and helps maximize payouts if something goes wrong. Your tax analysis doubles as insurance protection.
Without proper legal structure, one tenant lawsuit could threaten your home, savings, and personal assets. An LLC creates a liability shield — if something happens at your rental property, creditors can only pursue the LLC's assets, not your personal wealth. Overline helps you set up LLCs and trusts the right way, keeping each property's risk separate from you and from each other.
Your CPA files your taxes based on what you give them. Your AI agent proactively finds savings they'd otherwise miss — cost segregation studies, renovation write-offs, REPS hour logs, and insurance benchmarks. Critically, every cost segregation study your agent produces is verified and signed off by a licensed engineer and CPA before it touches your return, so it's IRS-defensible, not just a software estimate. Overline doesn't replace your CPA — it does the heavy lifting and hands them documentation they can use directly.
Overline is built for working professionals — W-2 earners, business owners, high-income earners — who own rental properties and are tired of overpaying on taxes, insurance, and financing. Whether it's your first rental or your tenth, your agent brings institutional-grade optimization across all three to individual investors automatically.
Start by joining our waitlist — we'll invite you to connect your properties and run a free analysis to show your potential savings. From there, you can access our tax optimization tools, insurance benchmarking, financing rate analysis, and LLC setup services. Most users see their first actionable insights within minutes of signing up.