| Business | Phone |
| Portland City Assessor 259 Kent St, Portland 48875 | (517) 647-2943 |
| Portland City Assessor 773 E Grand River Ave, Portland 48875 | (517) 647-2943 |
| Portland City Income Tax 259 Kent St, Portland 48875 | (517) 647-2941 |
| Portland City Income Tax 773 E Grand River Ave, Portland 48875 | (517) 647-2941 |
| Portland City Treasurer 259 Kent St, Portland 48875 | (517) 647-2933 |