Taxes in South Portland
South Portland's tax picture combines an above-national but below-Maine-statewide-median effective property tax rate with Maine's real, statewide graduated income tax.
Exploring the idea of moving?
We can connect you with a local real estate professional who knows the area -- no pressure, just a starting point.
Learn moreProperty taxes: above national, below Maine statewide
South Portland's effective property tax rate ran approximately 1.32% (Ownwell) -- above the 1.02% national median but below Maine's own cited statewide median (1.47%-1.57%, a real, disclosed cross-source inconsistency).
A separately cited mill rate
South Portland's FY2025-2026 mill rate ran $13.20 per $1,000 of assessed value -- a distinct measure applying to assessed rather than market value.
Maine's real, graduated income tax
Maine's base income tax tops out at 7.15% for the overwhelming majority of filers, per this project's Maine state record, layered for 2026 with a new millionaire's-tax surcharge above $1M/$1.5M income.
Key takeaways
- South Portland's effective property tax rate (1.32%) runs above national but below Maine's own statewide median.
- A separate, FY2025-2026 mill rate of $13.20/$1,000 applies to assessed value specifically.
- Maine's statewide 7.15% top income tax rate applies, per this project's Maine state record.
Want to know what your budget actually buys here?
Tell us a bit about what you're looking for and we'll connect you with someone local who can walk you through real numbers.
Get local guidanceRead the full South Portland overview for the complete picture -- housing, taxes, climate, and who this place genuinely fits.
Planning a move?
Tell us what you're looking for and we'll connect you with a local expert who can help you make it happen.
Talk to a local expert