When you start looking for a home in New Hampshire, the first step is to figure out how much you can comfortably afford with a conventional mortgage.

Key ratios lenders use

Most conventional‑loan lenders apply two debt‑to‑income (DTI) thresholds:

  • Front‑end ratio – about 28 % of your gross monthly income can go toward housing costs (principal, interest, taxes, and insurance).
  • Back‑end ratio – total monthly debt payments, including the mortgage, should stay at or below roughly 36 % of gross income.

How to turn those ratios into a home price

1. Multiply your gross monthly income by 0.28. The result is the maximum amount you could spend on mortgage‑related expenses each month.

2. Subtract an estimate for property taxes and homeowners insurance, which are higher in many NH towns.

3. Use the remaining amount to estimate the loan size you could qualify for. A typical 30‑year loan at a moderate interest rate translates the monthly payment into a loan principal.

Down payment and loan limits

  • A 20 % down payment lets you avoid private mortgage insurance (PMI). Many buyers put down less, but PMI will increase your monthly cost.
  • Conforming conventional loan limits in New Hampshire are generally around $700 000 in most counties, with higher limits in the Boston‑adjacent area. If you need a larger loan, you would be looking at a jumbo loan, which has stricter qualification standards.

New Hampshire‑specific considerations

  • New Hampshire does not levy a state income tax, which can leave more of your paycheck available for housing costs.
  • Property taxes are a significant expense in the state, so be sure to factor the local tax rate into your calculations.
  • Closings are typically handled by an attorney rather than a title company, which can add a few hundred dollars to closing costs.
  • The New Hampshire Housing Finance Authority offers programs that can provide down‑payment assistance or favorable terms for first‑time buyers.

By running these numbers and comparing them with listings in your target area, you’ll get a realistic sense of the price range you can afford.

This article provides general information and is not personalized financial advice. Consult a qualified mortgage professional for a detailed assessment of your situation.