Quick answer: the ordinary 5-6% realtor commission applies as usual, plus a statutory personal representative fee of $220 for the first $5,000, then 2% of the rest of the estate's gross value. See how this plays out for your own numbers in the Iowa probate real estate sale calculator.
A genuine formula, not a guideline
Life insurance and 401(k)s don't count
Funds that pass directly to named beneficiaries — life insurance policies, 401(k)s, and similar accounts — are excluded from the gross value used to calculate this fee, since they never become probate assets in the first place.
The attorney has a parallel, separate ceiling
A comparable fee ceiling applies to the estate's attorney under §633.198 — a distinct statutory provision from the personal representative's own §633.197 fee, though the two often land in a similar overall range in practice.
Extraordinary services can still exceed the formula
The court can approve fees above the ordinary schedule for extraordinary services — a genuinely complex or contested estate can justify more than the flat formula alone would produce.
A local probate attorney can review your estate — many offer a free consultation.
The §633.197 formula applies the same way whether the estate is administered in Polk County, Linn County, or any other Iowa county.