Florida pre-construction Bitcoin deposit calculator (v2)

Your situation

The property

Property purchase price ($)

Statutory deposit (§718.202) 10% (fixed)

Florida law requires the first 10% of the sale price in a §718.202 escrow account. This part is non-negotiable.

Additional deposit 10%

The deposit tranche above the statutory 10%. Typical luxury pre-construction is another 10–20%.

Construction period (months) 24

Your Bitcoin

Total BTC owned

Average cost basis per BTC ($)

Current BTC price ($)

BTC price at LMC loan buyback ($)

If the buyer plans to close the LMC loan at a price different from the end-of-construction price (e.g., closing the loan earlier when BTC is lower). Leave blank to use the scenario price.

Tax assumptions

Long-term capital gains rate 20%

Combined federal + state. FL has no state income tax (use 20% if FL resident).

Loan & service parameters

LMC upfront interest 5%

Standard Loan My Coins fee on the loan principal, paid at origination.

LMC loan-to-value (LTV) 95%

Borrower receives this fraction of pledged BTC as borrowed BTC.

TBA collaborative custody fee 1%

Annual % of AUM in collaborative custody. Default is TBA's standard 1%.

Multisig setup cost (one-time, $)

Legal docs + multisig configuration. Reusable template across deals.

Trustee annual fee ($)

Annual fee to the third-party key holder (attorney trustee, escrow agent).

LMC loan closure

Pay from external cash

Buyer has liquid cash at maturity (savings, mortgage proceeds) to buy back the borrowed BTC at the future price. No additional tax event.

Sell BTC at maturity

Buyer transfers BTC from existing holdings to close the loan. Triggers capital gain at the maturity-time BTC price (often more tax than selling now if BTC appreciated).

Roll the loan annually

Pay another 5% upfront fee per year, defer the closure question. Multiplies the LMC fee by the number of years.

BTC price at end of construction

All scenarios at a glance — net wealth at end of construction

Strategy	Bear (−50%)	Down (−25%)	Flat	+30%	+100%	+200%

Want to walk through your specific numbers?

The calculator captures the major variables, but every transaction has specifics — your cost basis, your developer's contract terms, your custody preferences, your timing, and crucially your loan-closure plan at maturity. The first 30 minutes is no-cost discovery.

Book a 30-min call

Important caveats — please read

This is a financial-modeling tool, not financial, legal, or tax advice. The calculations are simplified; actual outcomes depend on your specific tax basis, state of residence, contract terms, market conditions, BTC price path during construction (not just endpoints), and the precise structure of any loan or collateral arrangement.

Pledging Bitcoin as collateral is generally not, by itself, a taxable disposition under current IRS guidance, but tax treatment depends on the specifics. Selling borrowed Bitcoin for fiat at origination, repaying a loan with appreciated Bitcoin, transferring Bitcoin to satisfy a loan obligation, or default-triggered liquidation may all create tax events. Every buyer should consult a qualified CPA before relying on any structure described here for a specific transaction.

Florida pre-construction transactions are governed by §718.202 and other state statutes. The supplemental BTC collateral structure (Route 2) requires drafting by qualified Florida real-estate-and-crypto counsel. Whether BTC in 2-of-3 multisig satisfies UCC perfection requirements, and whether the §718.202 division director would accept BTC as alternative assurance for deposits above 10%, are open questions that require legal review before any specific transaction.

Sell BTC, borrow against BTC, or use BTC as collateral?