11th District Cost of Funds Index (COFI)
As a business owner, understanding the 11th District Cost of Funds Index (COFI) is essential for tracking interest rate trends, loan costs, and mortgage adjustments. COFI is an economic benchmark that measures the cost of funds for savings institutions in the Federal Home Loan Bank of San Francisco’s 11th District, which includes California, Arizona, and Nevada.
This index is primarily used to set interest rates on adjustable-rate mortgages (ARMs) and other loans, making it a key indicator for businesses and real estate investors.
Definition of the 11th District Cost of Funds Index (COFI)
The 11th District COFI is a regional interest rate benchmark that reflects the weighted-average cost of deposits and borrowings for financial institutions in the 11th Federal Home Loan Bank District.
✔ Calculated monthly by the Federal Home Loan Bank of San Francisco.
✔ Based on the interest expenses of savings institutions in California, Arizona, and Nevada.
✔ Used as an index for adjustable-rate mortgages (ARMs) and business loans.
Since COFI is regionally focused, it provides insights into local lending conditions and economic trends affecting business borrowing costs.
Explanation: what is the 11th District COFI?
COFI helps banks and lenders adjust interest rates on loans based on the cost of borrowing funds. It is commonly used in:
✔ Adjustable-rate mortgages (ARMs) – Many mortgage lenders tie loan interest rates to COFI movements.
✔ Business loans and real estate financing – Business owners and property investors use COFI to predict interest rate trends.
✔ Economic forecasting – Analysts track COFI to understand regional banking conditions.
How does COFI work?
- The Federal Home Loan Bank collects data from savings institutions in the 11th District.
- It calculates the weighted-average cost of funds based on deposits, borrowing rates, and interest expenses.
- The COFI index is published monthly, influencing loan adjustments.
Since COFI responds more slowly to short-term interest rate changes, it provides stability for long-term loans but may lag behind broader economic shifts.
Real-life example of COFI in business financing
Scenario: Business loan tied to the 11th District COFI
A real estate developer in California takes out a commercial loan with an adjustable rate based on COFI + 2%.
✔ COFI at loan signing: 1.5%
✔ Loan interest rate: COFI (1.5%) + 2% = 3.5%
✔ COFI rises to 2.0% after 12 months → New loan rate = 4.0%
Since COFI increases, the business owner pays a higher interest rate on the loan, affecting monthly cash flow and project costs.
Why is the 11th District COFI important for business owners?
1. Affects borrowing costs and loan rates
COFI is a key factor in setting adjustable-rate business loans and mortgages.
✔ Lower COFI = Lower borrowing costs for businesses.
✔ Higher COFI = More expensive financing.
🔹 Example: A restaurant owner in Nevada sees loan payments increase when COFI rises, impacting profit margins.
2. Provides insight into regional economic conditions
Since COFI is specific to California, Arizona, and Nevada, it reflects local banking trends and economic stability.
✔ Rising COFI = Higher cost of capital for regional businesses.
✔ Falling COFI = Easier access to affordable loans and credit.
🔹 Example: A tech startup in San Francisco watches COFI trends before securing venture debt financing.
3. Impacts real estate and commercial property investments
COFI is commonly used for adjustable-rate mortgages (ARMs), affecting commercial and residential real estate financing.
✔ Low COFI = Lower mortgage payments on commercial properties.
✔ High COFI = Increased loan costs for property investors.
🔹 Example: A real estate investor with a COFI-based mortgage sees payments increase when COFI rises, affecting rental property cash flow.
4. Helps businesses plan for interest rate changes
Businesses that rely on loans, credit lines, or real estate financing should monitor COFI to:
✔ Adjust financial forecasts for interest rate fluctuations.
✔ Lock in fixed-rate loans when COFI is expected to rise.
🔹 Example: A manufacturer in Arizona secures a fixed-rate loan to avoid rising COFI-driven rate increases.
About CoCountant
COFI-based loans don’t just affect interest rates, they also affect your books. If your loans are tied to COFI, your bookkeeping should be too. CoCountant helps you stay financially prepared, not reactive.
At CoCountant, we ensure your financial records accurately reflect loan payments, interest rate changes, and cash flow shifts tied to benchmarks like the 11th District COFI.
Here’s how we support COFI-related financial planning through our bookkeeping services:
✔ Track and update loan payments as interest rates adjust
✔ Record amortization schedules so your books reflect true principal and interest balances
✔ Monitor cash flow trends to help you prepare for COFI-driven cost changes
✔ Maintain up-to-date books that feed directly into financial forecasts and loan planning
Need books that track your loan costs as rates shift?