Programs, credit thresholds, down-payment assistance, and the 12-month credit timeline that positions Arizona first-time buyers for the best possible rate.
What 'first-time buyer' actually means in Arizona
You qualify as a first-time buyer if you have not owned a primary residence in the last three years. That opens the door to state and federal down-payment assistance programs even if this is not literally your first home.
Arizona's largest assistance program is Home Plus, administered by the Arizona Industrial Development Authority. It offers down-payment and closing-cost assistance stacked on top of Conventional, FHA, VA, and USDA loans.
Minimum credit scores by loan type
These are program floors — the score that will get you approved. The score that gets you a good rate is meaningfully higher.
- FHA — 580 to qualify for 3.5% down; 500 with 10% down (rare)
- Conventional — 620 minimum, 740+ for best pricing
- VA — no set minimum, but 620+ is what most lenders will fund
- USDA — 640 typical minimum
- Home Plus in Arizona — 640 minimum on most tracks
The mortgage credit score is not the credit-app score
Mortgage lenders pull FICO 2 (Experian), FICO 5 (Equifax), and FICO 4 (TransUnion), and use the middle of the three. Credit Karma, most credit-card apps, and the Discover free score use different models — they routinely show 30–60 points higher than mortgage scores.
Always assume your true mortgage score is lower than the number your app shows. Get a soft mortgage-model pull from your loan officer 90 days before applying so there are no surprises.
The 12-month timeline that works
T-12 months: pull all three reports, freeze the bureaus you are not using, and dispute every inaccurate item. Do not open or close any accounts.
T-9 months: get utilization on every card under 10%. Ask each card issuer for a credit-limit increase.
T-6 months: if your file is thin (fewer than three tradelines), add one secured card or a credit-builder loan. No other new credit from this point on.
T-3 months: run a soft mortgage-model pull with your loan officer. Address any last derogatories.
T-30 days: pay each card down so the statement that will be pulled reports at 1–3%. Do not open, close, or move any account.
What kills a pre-approval in the last month
Buying a car, financing furniture, opening a store card at the register, closing a credit card, letting a card report over 30%, and any change to employment or bank-deposit patterns. If you would not do it with a loan officer watching, do not do it.