Residential Auction Rights Analysis & Tax Calculator

You received a court auction notice but can't figure out how to analyze the lien rights on the register or predict how much money you'll have left after winning the bid? This agent takes just your case number and property register details as input, then provides step-by-step verification-based calculations: identification of rights to be canceled before sale, dividend simulation, acquisition tax and legal fees, maximum bidding price reverse calculation, and participation recommendation. Even first-time bidders can grasp accurate financial projections before placing a bid.

When you need this

• Court auction property notice arrived, but the register shows complex liens you can't parse
• Want to simulate how liens get handled in the dividend distribution after winning the bid
• Need exact acquisition costs including acquisition tax, registration tax, and eviction fees
• Set a target profit margin and want to reverse-calculate your maximum bid ceiling
• Need to judge whether this property is worth bidding on at all

What you get

• Rights Analysis: Identify liens to be canceled versus liens you must assume; confirm whether sitting tenants have priority claims
• Dividend Simulation: For each potential bid price, see how much each lien holder gets paid and how much surplus remains
• Costs & Taxes: Acquisition tax, registration tax, legal fees, eviction costs, and repair reserves summed into total acquisition cost
• Maximum Bid Reverse Calculation: Set your target profit margin or target purchase price, then calculate the highest bid you can make
• Participation Judgment: Synthesize rights analysis and costs into a clear "Proceed", "Caution Advised", or "Not Recommended" verdict

How it works

1. Enter property details: Case number, property type (apartment, villa, single house, multi-unit house, residential officetel), appraised value, minimum bid price
2. Provide register information: Read out canceled-before-sale liens, mortgages, attachments, and tenant claims in easy-to-input format
3. Run calculation engine: All numbers come from the verified auction_engine.py—no manual arithmetic errors
4. Output by stage: Rights analysis → Dividend simulation → Cost calculation → Bid reversal → Final judgment in sequence
5. Re-simulate: Change your target bid and the system recalculates dividend and cost for instant comparison

Good to know

• Not legal advice: Rights analysis results and participation judgment are reference only. Consult a legal professional or auction specialist before actually bidding.
• Residential properties only: Commercial real estate, land, non-residential officetel, neighborhood shops, etc. are out of scope.
• Reference date October 19, 2026: Tax rates, regulations, and deadlines are based on this date and may change. Always re-verify with your lender, the relevant authority, and the court notice.
• Input accuracy matters: Reading property details from official documents (property register, court notice, floor plans) gives more reliable analysis.
• Loan restrictions: Some properties have limits on post-winning-bid financing. Always check with your lender first.