What it means
Tax tables are built from the underlying rate schedule. The authority works out the tax for every small income range in advance and publishes the answers, so taxpayers do not have to calculate band by band.
This work is done once, centrally, which means every taxpayer gets the same answer. The tables are usually split by filing status, since the income bands differ for single people, married couples and others.
You find the column for your status and the row for your income, and the figure where they meet is your tax before credits. Always confirm your filing status before you begin the lookup.
To keep the table manageable, each row covers a range of income, such as a fixed band of $50. The tax for the row is usually calculated on the midpoint of the range, so the figure is a fair average for everyone in it.
This makes the table slightly approximate for any one person, but it is accurate enough for filing. Many systems limit the table to people below a certain income level.
Those with higher or more complex income are expected to use the rate schedule or computer software to work out their tax. Tax software does the work for those people at any level of income.
Tables help reduce arithmetic errors and make filing easier for people without financial training. Tax software uses the same logic behind the scenes.
They also make it easy to estimate tax at a glance during planning. The nuance is that the table is only as good as the figure you start with.
If your taxable income is wrong because a deduction is missing, the table will give you a precise answer to the wrong question. Check your taxable income line carefully before you look anything up.
In practice
Real-world examples.
Example
A young teacher with a simple return finds her taxable income of $38,430 in the table. She reads across to her filing status column and finds the tax. The process takes a minute and needs no calculator. She then subtracts her tax credits to find the balance due.
Example
A retiree with pension income uses the printed table with his tax guide. He checks the figure against the one produced by his tax software. They match, which gives him confidence that his entries are correct. He keeps the printed table with his tax papers as a record.
Example
A student at a community workshop learns how to read the table. The volunteer explains that the row covers a range and that the figure is based on the midpoint. The student then estimates her own refund correctly. Her estimate matches the final result when she files.
Formula
Calculation
Tax in a table row = Tax calculated on the midpoint of the income range
Suppose a simple schedule taxes the first $20,000 at 10% and income above that at 20%. A table row covers income from $40,000 to $40,050, so the midpoint is $40,025. Tax = 20,000 x 0.10 + (40,025 - 20,000) x 0.20 = 2,000 + 20,025 x 0.20 = 2,000 + 4,005 = $6,005. Everyone with income in that row reads the same figure of $6,005.Case study
Seen in the real world.
Calloway Community Advice is an illustrative, fictional charity that runs a free tax help day for local residents. Many of the visitors have simple returns, and the volunteers use the tax table to check the software's answers. Volunteers sit in pairs so each return is checked by a second person.
One volunteer noticed that a visitor's calculated tax was $300 higher than the table showed. After checking, the volunteer found that the taxable income had been entered with a transposed digit, so the software had used the wrong figure. The software worked correctly but depended on the number it was given.
In this illustrative story, the correction saved the visitor $300. The charity now trains volunteers to compare the tax table result with the software result on every return, as a simple accuracy check.
Watch out
Common mistakes.
- Using the column for the wrong filing status, which gives an incorrect tax figure.
- Looking up total income instead of taxable income, which gives a number that is too high.
- Using an out-of-date table, when tables are updated for each tax year.
Questions
People also ask.
Why do tables use a range of income instead of exact amounts?
It keeps the chart a manageable size, and using the midpoint makes the figure a fair average for the whole row.
Who should use the tax table and who should use the schedule?
The table suits taxpayers with simple returns below the income limit, and the schedule is used for higher or more complex income.
Does the tax table include credits?
No, it gives the tax before credits, which are subtracted afterwards.
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