Mortgage, Refinance & Velocity Banking Strategy

PITI stands for Principal, Interest, Taxes, and Insurance— the four components of a typical monthly mortgage payment. Many simple calculators only show principal and interest (P&I), which understates your true monthly housing cost by 25–40 percent.

PMI (private mortgage insurance) is added when the loan-to-value ratio exceeds 80 percent, and HOA fees apply where present. BASIS shows full PITI plus PMI and HOA so the headline number matches what you actually pay.

A loan recast (also called re-amortization) is when you make a large lump-sum payment toward principal and the lender recalculates your monthly payment over the remaining term. The interest rate and payoff date stay the same, but your required monthly payment drops because the balance is smaller.

Recasts typically cost a small fee ($150–$500) and require a minimum lump sum (often $5,000–$10,000). Not all loans are eligible — FHA, VA, and jumbo loans frequently are not. Confirm with your servicer before modeling.

Refinancing pays off when your expected tenure in the home exceeds the break-even point on closing costs. If closing costs are $8,000 and the new loan saves $200 per month, break-even is 40 months — refinancing only saves money if you keep the loan longer than that.

Watch the lifetime cost figure too: extending a 28-year loan back to 30 years can lower the monthly payment but raise total interest. The break-even tells you when the cash starts flowing in your favor; the lifetime figure tells you whether the total deal is positive.

Velocity banking can save interest, but only under specific conditions: the borrower has positive monthly cash flow well above the standard mortgage payment, maintains strict discipline running income and expenses through the HELOC, and the HELOC's average-daily-balance interest accrual offsets its higher nominal rate.

Without all three conditions, it costs more than simply paying extra principal directly. It is not a magic strategy — it is a cash-flow optimization that arbitrages how mortgages and HELOCs calculate interest differently.

The rate paradox is the question of how a higher-rate HELOC can save money on a lower-rate mortgage. The mechanism is real but narrow: a mortgage charges interest on the balance at the start of each period, while a HELOC used as a transaction account charges interest on its average daily balance across the month. Depositing income early and spending it gradually holds the average HELOC balance below its peak, so you pay interest on less than the full draw.

The catch is the benchmark: beating doing nothing is easy, but for velocity banking to beat simply paying the same surplus straight to principal, the average-daily-balance advantage has to outweigh the HELOC’s higher rate — which it often does not. This calculator models that daily balance conservatively, assuming income and expenses flow evenly through the month rather than the idealized day-one deposit advocates describe.

Rolling closing costs into the loan eliminates the upfront cash outlay but increases the principal you pay interest on for the life of the loan. The trade-off depends on three factors: how long you will keep the loan, your alternative use for the cash, and your interest rate.

For short tenures, paying closing costs upfront is usually cheaper. For long tenures, the difference is small. If you would otherwise put the cash in a higher-earning investment, rolling can make sense even when the lifetime cost is slightly higher.

Private mortgage insurance (PMI) is typically 0.3% to 1.5% of the original loan amount per year, charged monthly. It applies when the loan-to-value (LTV) ratio at origination exceeds 80 percent — i.e., when your down payment is less than 20 percent.

By law, lenders must automatically cancel PMI when the loan reaches 78% LTV based on the original amortization schedule, or you can request cancellation at 80% LTV. BASIS uses a default PMI rate of 0.75% annually, which you can adjust.

A home equity loan is a one-time lump sum with a fixed interest rate and fixed monthly payments — essentially a second mortgage. A HELOC (home equity line of credit) is a revolving credit line, like a credit card, with a variable rate and the ability to draw, repay, and re-draw as needed during the draw period.

Velocity banking strategies require a HELOC because the draw/repay flexibility is the entire mechanism. A home equity loan cannot be used the same way.

Most lenders require an escrow account for property taxes and homeowners insurance, especially when the down payment is less than 20 percent. Each month you pay 1/12 of the annual amounts into the escrow, and the lender pays the bills when due.

This is what makes PITI the practical monthly figure rather than P&I. Even when escrow is optional, factoring taxes and insurance into your budget gives you a realistic affordability picture.

Often, yes — and with far less complexity and risk. Paying $1,000 extra in principal directly to your mortgage every month accelerates payoff and saves interest without any HELOC, without variable-rate exposure, and without requiring discipline running your transaction account through a credit line.

Velocity banking can outperform extra principal only when the average-daily-balance arbitrage on the HELOC outweighs its higher nominal rate and the discipline cost. For most borrowers, the simpler strategy wins. BASIS lets you model both side by side.