| Business Income Tax Registration | | Form | |
| Declaration of Estimated Tax for Business | | Form | |
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| 2024 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2023 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2022 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2021 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2020 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2019 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2018 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2017 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2016 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2015 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2014 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2013 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2012 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2011 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2010 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2009 Forms | | | | |
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| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2008 Forms | | | | |
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| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2007 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
| 2006 Forms | | | | |
| L-NP | Net Profit Return for Business | | Instructions | Form |
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