What $11,000 a Month Will Really Look Like for a Single Retiree at 65 in Arizona

A common retirement planning question goes like this: if I’m single, 65, and moving to Arizona, can I spend $11,000 a month and keep that up for the rest of my life? Arizona keeps showing up in these plans because it’s warm, it’s full of retirees, and it costs less than the coastal states many of them are leaving.

On the Bureau of Economic Analysis price index, Arizona scores 100.677, about the national average, while California records 110.72. A monthly budget of $11,000 equals $132,000 a year. The average U.S. household spent $78,535 in 2024, so this plan falls well into the comfortable range.

How $132,000 a Year Gets Spent in Scottsdale or North Phoenix

The house in this budget is paid off and sits in a desirable part of the Phoenix metro. Heat is a major local cost driver, as air conditioners and roofs wear out faster in the desert, summer electric bills run high, and many retirees pay to leave town for part of July and August.

The healthcare line starts with the standard Part B premium of $202.90 a month and the $283 Part B deductible, then includes Medigap and drug coverage. A single person has no spouse to share these costs, so the long-term care reserve carries more weight than it would in a couple’s plan.

Turning the Budget Into a Portfolio Number

Arizona taxes income at a flat 2.5% and leaves Social Security alone, untaxed at the state level. Someone spending at this level was probably a high earner. The maximum benefit at full retirement age is $4,188 a month in 2027. Taking at 65, with a full retirement age of 67, cuts that to about $3,630. That’s still well above the $2,170 average for all retired workers.

Subtract that benefit from the budget, and the portfolio must supply $88,440 a year. If all of it comes out of a traditional IRA, every dollar is taxable under 26 U.S.C. § 408(d)(1). At this income level, 85% of Social Security also becomes taxable under 26 U.S.C. § 86(a)(2). Using the 2026 brackets and the $16,100 standard deduction, federal tax comes to about $18,850. Arizona includes roughly $1,810.

A 4% withdrawal rate matches a 30-year horizon starting at 65. At that rate, the gap requires $2.21 million. A more conservative 3.5% rate needs about $2.53 million. Waiting until 70 to take raises the benefit to about $5,193 a month. The total needed then falls to about $2.05 million, including a five-year treasury ladder to cover spending until the checks start.

Medicare’s Two-Year Lookback Lands on New Arizonans First

The withdrawal plan above produces a modified adjusted gross income of about $125,466. That’s above the $109,000 single threshold where income-related Medicare surcharges (IRMAA) begin. At that level, Part D alone costs $14.50 a month, and Part B also gets a surcharge. NBC News reported that some enrollees could pay hundreds of dollars more next year.

The timing of the Medicare income lookback is easy to overlook in retirement planning. Medicare sets the premium a retiree pays at 65 using the tax return from age 63. For many people, 63 is a peak salary year, or the year they sold a house elsewhere and recognized a gain above the exclusion.

If income that year topped $205,000, the Part D surcharge alone is $83.30 a month. At the top tier, the full Part B premium reaches $689.90. Filing Form SSA-44 to report a work stoppage can reset the surcharge. After that, you can draw from taxable accounts, where only gains count as income, and from Roth accounts, which can keep income near the threshold year after year (we mapped out the IRMAA tiers and other premium traps in a free Medicare guide).

What It Takes to Fund This Plan

Spending $11,000 a month in Arizona requires a paid-off home, Social Security near the maximum, and roughly $2.2 million to $2.5 million invested in broad index funds and a portfolio of Treasury bonds. That supports a 3.5% to 4% withdrawal rate. Delaying Social Security to 70 lowers the target to about $2.05 million, as long as you fund the bridge years in advance.

Renting, or a smaller Social Security record, pushes the number higher. Arizona’s tax treatment lowers the state tax bill, and Medicare surcharges add a high cost to many of these plans. Keeping taxable income below the surcharge threshold and filing to correct premiums based on age-63 income protects thousands of dollars a year that would otherwise come out of the travel and gift budget.

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