When filing my tax, what year should i put under "Year of Assessment?"
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In Nigeria’s tax system, income earned in one year is assessed in the following year. So the Year of Assessment refers to the year you are filing and being evaluated for that previous income. For example, If you earned income in 2025, your Year of Assessment will be 2026. Income year comes first, YeRead more
In Nigeria’s tax system, income earned in one year is assessed in the following year. So the Year of Assessment refers to the year you are filing and being evaluated for that previous income.
For example,
If you earned income in 2025, your Year of Assessment will be 2026.
Income year comes first, Year of Assessment is the next year when you file the tax return.
See lessWhen filing tax, Year of Assessment (YOA) refers to the year you are reporting income for — not necessarily the year you are filing. Simple Rule Year of Assessment = Previous year's income Example If you are filing in 2026: You are reporting income earned in 2025 So your Year of Assessment = 2025 MoRead more
When filing tax, Year of Assessment (YOA) refers to the year you are reporting income for — not necessarily the year you are filing.
Simple Rule
Year of Assessment = Previous year’s income
Example
If you are filing in 2026:
You are reporting income earned in 2025
So your Year of Assessment = 2025
More Examples
When You File
Income Year
Year of Assessment
2026
2025 income
2025
2025
2024 income
2024
2024
2023 income
2023
Nigeria Tax Rule (Important)
In Nigeria:
Tax returns are usually filed between January 1 — March 31
And it’s for the previous year’s income
So right now (2026):
You should normally use 2025 as your Year of Assessment
Special Cases
However, it can differ slightly if:
You’re filing for backlog years
You’re filing first time
You’re filing for company vs individual
See less