Jaspreet Singh's 75/15/10 budget calculator
Score spending, investing and saving against Jaspreet Singh’s 75/15/10 split, see the dollar move each bucket is short by, and when 10% becomes 25%.
Put your numbers through the rule
The source establishes the rule. The values below belong to you, and the output is JMM's deterministic calculation.
Every field recalculates immediately. Changed values can be copied into a shareable URL.
- Spending over the 75% ceiling by
- $30080.8% of income against a ceiling of $3,900
- Saving under the 10% floor by
- $1207.7% of income; beating a floor is ahead of the plan, not a miss
- Money the three buckets do not account for
- $120the three shares sum to exactly 100, so this is reported on its own line rather than folded into spending
- Months to a funded emergency fund
- 48 months$19,000 still to find at $400 a month, with no interest counted
Outside its own threshold: spending, investing, saving. The rule is silent on debt and on what belongs in which bucket, the base is income after tax so a pre-tax retirement deferral never appears as investing unless you add it, and the fund timeline assumes a constant saving amount earning nothing.
Spending
- Your share
- 80.8%
- Threshold
- 75.0%
- Move
- $300
Investing
- Your share
- 9.2%
- Threshold
- 15.0%
- Move
- $300
Saving
- Your share
- 7.7%
- Threshold
- 10.0%
- Move
- $120
What the source says, and what the calculator adds
What changes the answer
One bucket is almost always the entire problem
Spending above 75% forces both other buckets down at once, because the three shares sum to exactly 100 and there is no slack anywhere in the plan. On the numbers loaded here spending runs $300 over its ceiling and investing lands $300 under its floor, which is the same dollar twice. The fix is a single decision about rent, car or debt, not three simultaneous ones.
The 10% is temporary, and that is the part most people miss
The saving share exists to build an emergency fund and stops when the fund is complete, at which point the plan becomes 75/25. Investing rises from 15% to 25% of income — from $780 to $1,300 a month on the loaded figures — without the household earning another dollar. The model dates that switch instead of leaving it as an aspiration.
Seventy-five percent is generous, and the arithmetic shows why
Set income to a high figure and the spending ceiling stops constraining anything: 75% of $20,000 a month is $15,000 to spend. The same rule that is unreachable near the median income is a permission slip well above it. A single percentage cannot do both jobs.
The order is right and the percentages are wrong at both ends of the income scale.
The structural idea is sound and it is the reason this plan sticks: investing and saving come out first, and spending is defined as what survives. That inversion does more work than any of the three numbers wrapped around it. But 75% is not a discipline for most of the people quoting it. Near the median US income it is a ceiling many renters cannot get under, and well above the median it is so loose that a household can obey the rule perfectly while spending fifteen thousand dollars a month. Singh’s own site knows this — its Money 101 guide reserves 75/15/10 for parents and tells single readers to run 50/30/20 — while the video that made the rule famous presents it as universal. Use the page the way the rule actually works: find the bucket outside its threshold, fix only that one, and treat 15% as the floor it is written as, not the target it gets read as.
Not the calculator’s limits. The rule’s.
The same publisher gives the same reader two different splits
The Money 101 article prescribes 75/15/10 for parents and 50/30/20 for a single person with no children, mortgage or business. The video that carries the rule’s name then sells 75/15/10 to everyone, and a third article on Singh’s own finance publication states the thresholds as a ceiling and two floors. Three treatments, three audiences, one brand.
It has no debt sequencing whatsoever
The rule counts a card balance at twenty-plus percent as ordinary spending inside the 75%, then instructs the same household to put 15% into investments. That is an instruction to borrow expensively in order to invest. Nothing in the source arbitrates the order, so the plan can be followed exactly and still lose money every month.
A percentage ceiling is not a plan for anyone with high fixed costs
Rent, utilities, insurance, groceries, transport and minimum debt payments inside 75% of after-tax income is a very different instruction in a cheap metro than in an expensive one. The rule carries no geographic or life-stage adjustment, so it can grade a disciplined household a failure for living somewhere expensive.
What this model does not know
- The model does not decide what belongs in which bucket. A 401(k) deferral, a house down-payment fund and an extra debt payment can each be argued into two of the three.
- The base is income after tax as the source states it. Pre-tax retirement deferrals never appear as investing here unless you add them yourself, which makes the 15% target easier to miss on paper than in reality.
- Irregular annual costs — insurance premiums, registration, tuition — must be converted to a monthly figure before entry or spending will read low.
- The emergency-fund timeline assumes the saving amount is constant and earns nothing. Interest and any change in income are excluded.
- The rule is silent on debt, so the model cannot tell you whether the 15% should be going to investments or to a card balance first.
Before you use the result
Is the base gross or after-tax income?
Income after tax. The cited source states the three shares against income you actually receive, so a 15% investing target here is not comparable with a 15%-of-gross retirement rule elsewhere on this site.
Why do the three numbers add to exactly 100?
Because this rule is a partition rather than a set of overlapping bands. That makes it stricter than plans whose bands sum to more than 100, and it means any money the three buckets do not account for is reported separately instead of being absorbed into spending.
What happens after the emergency fund is full?
The plan redirects the 10% saving share into investing, becoming 75/25. The model shows both the 15% figure and the 25% figure, and dates the month the switch is due at your entered saving amount.
Does a 401(k) contribution count toward the 15%?
Not automatically. Money deferred before your paycheck arrives is already outside after-tax income, so add it to the investing field yourself if you want the share measured on the same base.
Is 75/15/10 meant for everyone?
Singh’s video presents it as a general rule, but his own Money 101 guide assigns it to parents and gives single readers 50/30/20. This page models the 75/15/10 version and says plainly where the two published splits disagree.
The next question this page cannot answer
- Graham Stephan, sourced rule 20% rent rule calculator
Whether the 75% ceiling is reachable at all is mostly a housing question, and this puts a ceiling on the single line that decides it.
Open → - Calculator Credit card minimum payment calculator
The gap the rule leaves open. It counts a card balance as ordinary spending and then asks for 15% into investments; this prices what the balance does meanwhile.
Open → - Dave Ramsey, sourced rule Emergency fund calculator
Sizes the target that ends the 10% saving share, which this plan requires and never states a number for.
Open →