Tithe Calculator: Giving as a Share of Income
Work out a tithe — the share of income set aside for giving — and see how much income is left afterward.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | Tithe amount | Income kept |
|---|---|---|
| 10% of $60,000 | 6,000 | 54,000 |
| 10% of $4,500 | 450 | 4,050 |
| 5% of $80,000 | 4,000 | 76,000 |
| 15% of $52,000 | 7,800 | 44,200 |
How This Calculator Works
Enter your income and the giving percentage. A tithe is traditionally 10%, but you can enter any figure. The calculator multiplies income by the percentage to find the tithe and shows the income kept.
The Formula
Percentage of an Amount
Amount is the base value, Percentage is the rate applied to it
Worked Example
On $60,000 of income, a 10% tithe is $6,000, leaving $54,000. The same method works for any period — apply it to a paycheck, a month, or a full year.
Key Insight
Whether a tithe is figured on gross or net income is a personal choice, and the two give meaningfully different amounts. Decide which basis you will use and apply it consistently.
Gross vs net — traditional and modern interpretations
TRADITIONAL CHRISTIAN INTERPRETATION (Old Testament Malachi 3:10, Leviticus 27:30). Substantial. 10% of agricultural produce, herds — substantially gross output.
Modern translation typically. 10% of gross income (pre-tax, pre-deduction). Substantially majority churches teach.
ALTERNATIVE INTERPRETATIONS. (1) NET INCOME. Substantial pastors/traditions accept. After taxes, after Social Security withholding.
(2) INCREASE. Substantial Mormon (LDS) doctrine. 10% of 'increase' = income net of business expenses.
(3) DISCRETIONARY. Substantial Reformed traditions. After essentials.
JEWISH MA'ASER KESAFIM. 10% of profits (net of expenses). Substantial flexibility. Some opinions on grossing up for taxes.
MUSLIM ZAKAT (related concept, different mechanic). 2.5% of accumulated wealth above nisab threshold, annually. Not tithe per se.
Practical considerations.
(1) Gross of $100K = $10K tithe. Net (after 30% tax) of $70K = $7K tithe. Substantial $3K difference.
(2) Conscience question. Substantial individual decision with pastoral/rabbinic guidance.
(3) Self-employed. Substantial 'gross' definition ambiguous. Business revenue or owner draw?
(4) Investment gains. Realized only? Unrealized? Substantial interpretation variance.
(5) Inheritance/windfall. Substantial special tithe many traditions.
(6) Tax refunds. Already tithed gross? Or tithe on refund?
Calculator returns 10% — user inputs which base to use based on personal/religious guidance.
U.S. tax treatment of tithes and religious giving
TAX DEDUCTIBILITY. Tithes to qualified religious organizations (Internal Revenue Code §170) substantial deductible. Must be 501(c)(3) or qualifying religious org.
Verification. IRS Tax Exempt Organization Search (Pub 78 data). Most established churches/synagogues/mosques substantial automatic qualification.
ITEMIZE REQUIREMENT. Must itemize (Schedule A) to deduct. Standard deduction 2024: $14,600 single / $29,200 MFJ. Substantial — many tithers don't exceed standard deduction.
LIMITS. Cash contributions to public charities (including most religious orgs) up to 60% of AGI deductible. Excess carryforward 5 years.
DOCUMENTATION. (1) Under $250 per donation: bank record OR written receipt.
(2) $250+ single donation: written contemporaneous acknowledgment from church (must say 'no goods/services received'). Substantial — required.
(3) Non-cash $500+: Form 8283. $5,000+: appraisal required.
STRATEGIES. (1) BUNCHING. Itemize one year, standard next. Donate 2 years' tithes in one calendar year, deduct that year. Standard deduction off year.
(2) DONOR-ADVISED FUNDS (DAF). Front-load multi-year giving to DAF, deduct full amount current year. Distribute to church over time. Substantial.
(3) APPRECIATED SECURITIES. Donate stock instead of cash. Avoid capital gains tax + deduct fair market value. Substantial vs sell-then-donate.
(4) QUALIFIED CHARITABLE DISTRIBUTION (QCD). Age 70½+ from IRA up to $105K/year (2024). Excludes from income, satisfies RMD. Substantial.
Turning the percentage into a sustainable budgeting habit
The arithmetic this calculator performs is the easy part; the durable challenge is cash-flow timing. A 10% tithe on a $60,000 salary is $6,000 a year, but income rarely arrives in even monthly slices — commissions, bonuses, freelance invoices, and seasonal work all create lumpy receipts. Two common approaches reconcile this. The first is per-paycheck: apply the percentage to each deposit as it lands, so giving scales automatically with what was actually received and never outruns the bank balance. The second is annualized: estimate yearly income, set the full tithe as a budget line, and divide by twelve so each month gives a steady, predictable amount regardless of when income arrives.
Each method has a failure mode worth planning around. Per-paycheck giving understates the obligation in a strong-income year if a year-end true-up is skipped, so many people re-run the calculation on actual total income each December and give the shortfall as a final contribution. Annualized giving overcommits if the income estimate proves optimistic, which argues for a conservative base figure revised quarterly. A practical pattern is to automate a fixed monthly transfer to a dedicated giving account, let irregular income accumulate there, and disburse from it — separating the decision of how much to set aside from the decision of when and where it is finally given.
Tithe interpretation and tax treatment reference
Reference tithe calculations and U.S. tax implications.
| Item | Detail |
|---|---|
| Christian traditional tithe | 10% of gross income |
| LDS interpretation | 10% of 'increase' (income net business expenses) |
| Jewish ma'aser kesafim | 10% of profits (net expenses) |
| Muslim zakat (related) | 2.5% of accumulated wealth above nisab |
| U.S. tax deduction | Yes if itemizing + qualified 501(c)(3) |
| Standard deduction 2024 (single) | $14,600 |
| Standard deduction 2024 (MFJ) | $29,200 |
| AGI deduction limit cash | 60% of AGI |
| $250+ donation documentation | Written acknowledgment required |
| Strategy: appreciated stock donation | Avoid cap gains + deduct FMV |
Religious interpretation guides which base (gross/net/increase) to use. U.S. tax requires itemization to deduct — many tithers don't exceed standard deduction. Bunching, DAF, QCD strategies substantial for high-itemizers age 70½+.
Frequently Asked Questions
What is a tithe?
A tithe is a portion of income given, traditionally to a religious community. The word means a tenth, so a tithe is classically 10% of income.
Should I tithe on gross or net income?
It is a personal decision. Gross income produces a larger tithe than net; many people pick one basis and keep to it consistently.
Does the tithe have to be 10%?
Ten percent is the traditional figure, but giving is a personal choice. The calculator accepts any percentage, higher or lower.
How often should I calculate it?
Whatever suits you — per paycheck, monthly, or annually. Enter the income for that period and the tithe is calculated the same way.
Is a tithe tax-deductible?
Charitable giving may be tax-deductible if it goes to a qualifying organization and you itemize. Confirm the rules and keep records of your giving.
When is this calculator unreliable?
Reliable as 10% arithmetic. Religious interpretation varies on which base to use (gross income, net income, 'increase'/profits, gross of taxes vs net). For self-employed, 'gross' is ambiguous (business revenue vs owner draw). For tax deductibility, only contributions to qualified 501(c)(3) religious orgs count; $250+ donations require written acknowledgment from church per IRS Pub 526.
References & Authoritative Sources
- Internal Revenue Service (IRS) — Publication 526 — Charitable Contributions · consulted June 1, 2026 · Federal tax authority
- Internal Revenue Service (IRS) — Topic 506 — Charitable Contributions · consulted June 1, 2026 · Federal tax guidance
- Internal Revenue Service (IRS) — Exempt Organizations Select Check (Pub 78 data) · consulted June 1, 2026 · Federal qualified org list
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Methodology & Review
Tithe = (gross or net income) × 10%. Calculator returns tithe amount. Religious traditions vary: Christian biblical tithe traditionally 10% of gross. Modern interpretations vary gross/net, pre/post-tax. Jewish ma'aser kesafim traditionally 10%. Some traditions extend to additional offerings beyond 10%. U.S. tax-deductible if to qualified 501(c)(3) per IRS Pub. 526. RELIABILITY: Reliable as mathematical 10% calculation. Religious interpretation substantial — some calculate on gross, others net, others increase income (raise minus prior). Calculator provides arithmetic; religious authority guides which base to use. For tax: only contributions to qualified religious orgs deductible; substantial documentation required ($250+ requires written acknowledgment).
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