Conventional Loan
Conventional Loan Monthly Payment Example for Washington Buyers
Reviewed by the HomeMath editorial team Updated 2026-08-06
Key takeaways
- Loan amount: $300,000
- Principal & interest (30‑yr @ 6%): ≈ $1,798 per month
- Estimated total monthly payment (including taxes, insurance, PMI): ≈ $2,315
When you buy a home in Washington with a conventional loan, your monthly payment is made up of several components: principal and interest (P&I), property taxes, homeowners insurance, private mortgage insurance (PMI) if your down payment is less than 20%, and any homeowners association (HOA) fees.
Sample loan details
- Purchase price: $350,000
- Down payment (10%): $35,000
- Loan amount: $300,000
- Term: 30 years
- Interest rate (hypothetical fixed rate): 6% per year
Calculating principal & interest
Using the standard amortization formula, a $300,000 loan at 6% for 30 years yields a monthly P&I payment of about $1,798.
Adding other costs
- Property taxes (average 1% of home value): roughly $292 per month
- Homeowners insurance (estimate $1,200 per year): about $100 per month
- PMI (0.5% of loan per year until 20% equity): about $125 per month
- HOA fees (if applicable): varies, not included in this example
Estimated total monthly payment
Principal & interest: $1,798
Taxes + insurance + PMI: $517
Estimated total: approximately $2,315 per month
Washington-specific points
- Washington does not levy a state income tax, which can affect your overall affordability.
- Most closings in the state are handled by title companies rather than attorneys.
- The Washington State Housing Finance Commission offers first-time-buyer programs that can help with down-payment assistance.
This article provides general information and should not be considered personalized financial or loan advice.
FAQ
What is private mortgage insurance (PMI) and when do I need it?
PMI protects the lender if you default when your equity is below 20% of the home’s value. It is typically required for conventional loans with a down payment under 20% and is removed once you reach 20% equity.
How are property taxes calculated in Washington?
Washington counties assess property value annually and apply a local tax rate, which averages around 1% of the home’s assessed value. The tax bill is usually paid in two installments and can be escrowed into your monthly mortgage payment.
Can I avoid PMI with a larger down payment?
Yes. Putting down at least 20% of the purchase price eliminates the PMI requirement on most conventional loans, reducing your monthly payment.
Are there any state programs that can help with my down payment?
The Washington State Housing Finance Commission offers several assistance programs for first‑time buyers, including down‑payment loans and mortgage credit certificates that can lower your effective interest rate.
Do I need an attorney for the closing in Washington?
Closings in Washington are typically handled by title companies, not attorneys, though you may still consult an attorney for legal advice if you wish.
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