Tithe calculator
This calculator works out a tithe — traditionally a tenth of income given to a church or charity — and shows what remains afterward. It supports tithing on either gross or net income and any rate you choose, so it fits different convictions and giving plans.
Background: what is a tithe?
The word tithe comes from the Old English word for “tenth.” It appears throughout the Hebrew scriptures and the Christian Old Testament as an instruction to give one tenth of produce, livestock, or earnings to God or to the community’s priests. The practice was later adopted by Christian churches and remains a common giving standard in many denominations today, including evangelical, Latter-day Saint, Catholic, and other traditions. Some churches teach that tithing applies to gross income; others to net; many leave the choice to each member’s own conviction.
Gross vs net — which income basis?
The question of gross versus net is the most common point of debate among tithers:
- Tithing on gross income (before tax and deductions) reflects the view that a person’s full earnings belong first to God, with the tithe paid before any other claim on the money.
- Tithing on net income (after tax and deductions) reflects the view that a person cannot truly give what they never received, and that tax money goes to the government, not to the individual.
Neither is universally right or wrong — it is a matter of personal and denominational conviction. This calculator supports both, and the result clearly shows the tithe and what remains for each basis you choose.
How it works
The maths is a simple percentage of your chosen income basis:
tithe = income × rate / 100
remaining = income − titheYou select whether income is gross (before tax) or net (after tax) — the calculation is identical either way. The rate defaults to the traditional 10% but can be set to any value. Results are rounded to two decimal places.
Worked example
Monthly gross income: $4,500. Tax and deductions take out roughly $1,200, leaving a net of $3,300.
- Tithe on gross at 10%:
$4,500 × 0.10 = $450, leaving$4,050gross (or$2,850after tax) - Tithe on net at 10%:
$3,300 × 0.10 = $330, leaving$2,970net
| Income | Basis | Rate | Tithe | Remaining |
|---|---|---|---|---|
| $3,000 | Net | 10% | $300.00 | $2,700.00 |
| $4,500 | Gross | 10% | $450.00 | $4,050.00 |
| $3,300 | Net | 5% | $165.00 | $3,135.00 |
| $5,000 | Gross | 15% | $750.00 | $4,250.00 |
Tithe vs offering
A tithe is traditionally the percentage-based portion — the base commitment. An offering is any additional voluntary gift given over and above the tithe. This calculator handles the tithe; offerings are separate and vary by occasion and personal generosity.
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