Harris County MUD 383 Ad Valorem Taxes rates are based on property values established by the Harris County Appraisal District. The tax rate (below) is per $100 of home value, as determined by the Harris County Appraisal District.
Information about the District required by Section 26.18, Texas Tax Code, created by Senate Bill 2 (also known as the Texas Property Tax Reform and Transparency Act of 2019), is available here:
| Year | Debt Service | Maintenance | Total Tax Rate | Order Levying Taxes |
| 2024 | $ 0.37000 | $ 0.17500 | $ 0.54500 | Order Levying Taxes – 2024 |
| 2023 | $ 0.32000 | $ 0.24475 | $ 0.56475 | Order Levying Taxes – 2023 |
| 2022 | $ 0.39000 | $ 0.21450 | $ 0.60450 | Order Levying Taxes – 2022 |
| 2021 | $ 0.45000 | $ 0.20500 | $ 0.65500 | Order Levying Taxes – 2021 |
| 2020 | $ 0.48000 | $ 0.22000 | $ 0.70000 | Order Levying Taxes – 2020 |
| 2019 | $ 0.48500 | $ 0.24500 | $ 0.73000 | Order Levying Taxes – 2019 |
| 2018 | $ 0.54000 | $ 0.21000 | $ 0.75000 | Order Levying Taxes – 2018 |
| 2017 | $ 0.58000 | $ 0.19000 | $ 0.77000 | Order Levying Taxes – 2017 |
| 2016 | $ 0.60000 | $ 0.17000 | $ 0.77000 | Order Levying Taxes – 2016 |
| 2015 | $ 0.70000 | $ 0.14000 | $ 0.84000 | Order Levying Taxes – 2015 |
| 2014 | $ 0.67500 | $ 0.21500 | $ 0.89000 | Order Levying Taxes – 2014 |
| 2013 | $ 0.67500 | $ 0.26500 | $ 0.94000 | Order Levying Taxes – 2013 |
| 2012 | $ 0.69000 | $ 0.25000 | $ 0.94000 | Order Levying Taxes – 2012 |
| 2011 | $ 0.63000 | $ 0.31000 | $ 0.94000 | Order Levying Taxes – 2011 |
| 2010 | $ 0.63500 | $ 0.30500 | $ 0.94000 | Order Levying Taxes – 2010 |
| 2009 | $ 0.63000 | $ 0.31000 | $ 0.94000 | Order Levying Taxes – 2009 |
| 2008 | $ 0.67000 | $ 0.31000 | $ 0.98000 | Order Levying Taxes – 2008 |