Giving Percentage Calculator
Calculate tithe and giving amounts based on your income. Compare your planned giving percentage to the traditional 10% tithe on gross or net income.
About this calculator
This calculator computes what a chosen giving percentage amounts to in dollars, and lets you choose whether that percentage applies to your gross (pre-tax) income or your net (post-tax) income — a genuinely debated question among tithers, since the traditional 10% tithe predates income tax and different traditions land differently on which base to use. If you select net income, the tool first estimates it by applying your entered effective tax rate to your gross income; that's a simplification of your real take-home pay, since it doesn't account for pre-tax deductions, multiple tax brackets, or payroll taxes, so treat the net figure as an approximation rather than a paycheck-accurate number.
The annual giving amount is then split into monthly and weekly figures for practical budgeting, and compared against what a straight 10% tithe on the same income base would be, so you can see immediately whether your planned percentage gives more or less than the traditional benchmark. The "monthly income after giving" output simply subtracts your annual giving from your gross income and divides by 12 — it does not subtract taxes, so it isn't your actual monthly take-home after giving and taxes combined.
Inputs
Results
Annual giving
$5,000.00
Monthly giving
$416.67
How to Use This Calculator
- Enter your Annual Gross Income.
- Set the Giving Percentage you want to practice (or use 10% as the traditional tithe baseline).
- Select Calculate on (gross or net income) and enter your Effective Tax Rate if using net.
- Review Annual Giving, Monthly Giving, and Weekly Giving amounts.
- Compare your giving to the Traditional Tithe (10%) and note the Difference from 10% tithe.
How the result changes with Annual gross income ($)
| Annual gross income ($) | Annual giving | Monthly giving |
|---|---|---|
| 25,000 | $2,500.00 | $208.33 |
| 37,500 | $3,750.00 | $312.50 |
| 75,000 | $7,500.00 | $625.00 |
| 125,000 | $12,500.00 | $1,041.67 |
What each input means
- Annual gross income ($)
- Your total annual income before taxes and deductions.
- Giving percentage
- Percentage of income you plan to give (traditional tithe is 10%).
- Calculate on
- Whether to base your giving on gross or net income.
- Effective tax rate
- Your effective tax rate. Used to calculate net income when giving on net.
What each result means
- Annual giving
- Total amount you would give per year at your chosen percentage.
- Monthly giving
- Your monthly giving amount.
- Weekly giving
- Your weekly giving amount for budgeting per paycheck or offering.
- Traditional tithe (10%)
- What a standard 10% tithe would be on the same income base.
- Difference from 10% tithe
- How much more or less you give compared to a traditional 10% tithe.
- Monthly income after giving
- Your monthly gross income minus giving amount.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersAnnual gross income ($) = 50000, Giving percentage = 10, Calculate on = 0, Effective tax rate = 25 = 4 input(s) provided
- Calculate Annual givingAnnual giving = baseIncome * (givingPct / 100)5000 = $5,000
- Calculate Monthly givingMonthly giving = annualGiving / 12416.67 = $416.67
- Calculate Weekly givingWeekly giving = annualGiving / 5296.15 = $96.15
- Calculate Traditional titheTraditional tithe = baseIncome * 0.15000 = $5,000
Engine last updated . Checked against 4 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why do gross and net income give different results for the same giving percentage?
Choosing 'gross' applies your giving percentage directly to your entered gross income, while choosing 'net' first computes an estimated net income (gross income times one minus your effective tax rate) and applies the percentage to that smaller number instead. Since net income is always less than gross once any tax rate above 0% is entered, giving on net produces a smaller dollar amount for the exact same percentage than giving on gross does.
How accurate is the net income estimate this calculator uses?
It's a single-rate simplification: gross income multiplied by (1 minus your entered effective tax rate), with no adjustment for pre-tax deductions like 401(k) contributions or health insurance, no progressive tax brackets, and no payroll taxes like Social Security or Medicare. Treat it as a rough approximation of take-home pay, not a paycheck-accurate figure — for a precise number, use your actual net pay from a pay stub as the basis instead.
Why doesn't 'monthly income after giving' account for taxes?
That output is computed as (grossIncome - annualGiving) / 12 — it only ever subtracts your giving amount from your gross income, regardless of whether you chose to calculate giving on gross or net. It intentionally isolates the effect of giving alone rather than trying to also model take-home pay after taxes, so don't read it as your real monthly cash available after both taxes and giving.
What exactly does 'difference from 10% tithe' compare?
It subtracts a traditional 10% tithe (calculated on the same income base you selected — gross or net) from your actual annual giving at your chosen percentage. A positive number means you're giving more than a traditional tithe would require on that base; a negative number means you're giving less, which is useful for seeing at a glance how your personal giving goal compares to the classic benchmark.
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