Free Christian budget calculator using the 50/30/20 framework with a giving-first line — plan every dollar with biblical wisdom and verifiable math.
Your monthly income
Your monthly allocation
What is the 50/30/20 budget rule?
The 50/30/20 budget allocates your take-home pay into three buckets: 50% needs (housing, food, utilities, transport, insurance), 30% wants (eating out, subscriptions, hobbies, travel), and 20% savings or debt payoff. Popularized by Sen. Elizabeth Warren in All Your Worth, it's the simplest budget framework that still works for most middle-income households.
The Christian "giving-first" version
The honest weakness of 50/30/20 is that it has no giving line. Scripture's pattern is that generosity comes first, not last (Proverbs 3:9-10; 2 Corinthians 8:1-5). The giving-first variation we recommend: 10% give, 50% needs, 20% wants, 20% save. Same simplicity; biblical priority.
The Tithe Calculator
Use our Tithe Calculator to dial in the 10% giving line by frequency, gross or net.
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Frequently asked questions
What is the 50/30/20 budget rule?
The 50/30/20 rule allocates after-tax income into three buckets: 50% to needs (housing, food, utilities, transportation), 30% to wants (dining, entertainment, hobbies), and 20% to savings and debt payoff. Christian households often add a giving-first slice (typically 10%) before the 50/30/20 split, honoring the firstfruits principle from Proverbs 3:9.
Is the 50/30/20 budget biblical?
The exact percentages aren't in Scripture, but the principles behind them are: planning ahead (Proverbs 21:5), living within your means, saving wisely (Proverbs 21:20), and giving generously (2 Corinthians 9:7). Most biblical-budgeting teachers recommend a 10/20/70 or giving-first variant so generosity isn't an afterthought.
Should I budget on gross or net income?
Budget on net (take-home) income for needs, wants, and savings — that's the money actually arriving in your account. Calculate the tithe on gross if you follow the firstfruits principle, then subtract it before splitting the rest into the 50/30/20 categories.
How much should I save each month?
20% of take-home is the standard target — split between an emergency fund (3-6 months of expenses), retirement, and short-term goals. If you're paying off debt aggressively, many Christians lower savings temporarily to 5-10% and redirect the rest to debt, while keeping a $1,000 starter emergency fund in place.
What is a biblical budget framework?
Most Christian budget frameworks start with the tithe off the top (Proverbs 3:9), then savings (Proverbs 21:20), then needs, then wants. Many use 10/10/80 (tithe, save, live) or 15/15/70 in higher-income seasons. The goal is margin — so you can be generous without anxiety.
Is the 50/30/20 rule biblical?
The 50/30/20 rule (needs/wants/savings) is not biblical or unbiblical — it is a secular heuristic. Christians typically adapt it to 10/50/20/20 (tithe/needs/wants/savings) so that worship comes first, not last. Scripture's principle is firstfruits, not a fixed percentage.
How often should I update my budget?
Review weekly during the first 90 days, then monthly once habits stabilize. Proverbs 27:23 commands the steward to 'know well the condition of your flocks' — that is a recurring posture, not a one-time exercise.
What is zero-based budgeting?
Zero-based budgeting assigns every dollar a job until income minus outgo equals zero. It is the framework used by EveryDollar, YNAB, and most Christian financial coaches. Our calculator gives you the snapshot; the Solomon Wealth Code app gives you the ongoing tracker.