SF Triplex Calculator

House-hacking · FHA · 3 units · Co-borrower scenario

Unit 1 — You Unit 2 — Rental Unit 3 — Rental

Property & Loan

Purchase Price $1,500,000

Down Payment (HELOC) $275,000

Mortgage Rate 6.30%

Unit 2 Rent $3,200

Unit 3 Rent $2,000

Property Tax Rate 1.18%

Income & Co-borrower

Your Gross Income $65,000

Co-borrower Income $0 (none)

Your Net Monthly Cost

—

after both rental units

Combined Rental Income

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/month

Your income

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Co-borrower

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Combined

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DTI (combined income + 75% rent) —

Solo DTI (your income only) —

Monthly Cost Breakdown

Principal & Interest—

FHA MIP (0.55% annual)—

Property Tax—

Insurance (est.)$200

Gross Housing Cost—

Unit 2 Rent—

Unit 3 Rent—

Net Monthly Cost—

Loan & Eligibility Snapshot

Loan Amount—

Down Payment—

Down Payment %—

Closing Costs (est. 3%)—

HELOC Buffer Remaining—

FHA Eligible?—

Triplex vs. Duplex advantage — Unit 3 saves you —/mo vs. a duplex at the same price. Over 10 years that's — in reduced housing cost (before appreciation).

Family HELOC cost — Drawing $275,000 at 7.21% (current avg): —/mo interest-only during draw period. This sits on your family's books, not yours. Total capital deployed (down + closing): —. FHA triplex limit in SF: $1,933,200.