United States · official sources and transparent math
Mortgage & commercial lending tools.
Federal housing data and local calculators for county loan limits, insurance-removal timing, refinance costs, commercial real estate coverage and balloon balances.
Why these are separate from a generic payment calculator
Each page answers a distinct decision: whether a residential loan fits a county program limit, when conventional PMI reaches a scheduled milestone, whether refinance costs recover, how property NOI compares with commercial debt service, or how much principal remains when a commercial term ends before amortization.
Federal rules and lender methods can change. These are estimates and research aids, not loan approvals, offers, eligibility determinations, legal advice or financial advice. Confirm the inputs and result with the applicable official source, lender or servicer.