Monthly Budgeting Calculator
Calculator
The 50/30/20 rule is a guideline, not a law
The 50/30/20 framework comes from Senator Elizabeth Warren’s book “All Your Worth,” and it is a decent starting point for most US households. In high-cost-of-living cities like NYC, the needs portion often runs closer to 60 percent – rent in Manhattan alone can eat the entire “needs” bucket. The right adjustment is to compress the wants line, not to give up on saving 20 percent. The savings number is the only one that builds wealth.
The single best leading indicator of long-term financial outcomes is savings rate, not income. A household making $90K saving 25 percent will out-accumulate a household making $150K saving 8 percent over twenty years – by a significant margin.
What most budgets miss
Annual or irregular expenses: car registration and inspection, holiday gifts, insurance premiums billed annually, professional licensing renewals, tax preparation fees, dental cleanings, vet bills. Take the annual total, divide by twelve, and put that on a sinking-fund line. Without it, January and December always feel like an emergency.
“I make $200K and somehow have no money saved” is a sentence we hear from new clients more than any other. The cause is almost always lifestyle creep, not literal overspending on any one thing. Each individual line looks reasonable. The aggregate does not.
Where this calculator points you next
Once you have a sense of your savings number, model where it goes. The 401(k) calculator shows the long-term effect of bumping the deferral by even 1 percent. The credit card payoff calculator shows how much faster debt disappears when you redirect 5 percent more of your income at it. The future value calculator shows what an extra $500/month in a taxable brokerage account compounds to over thirty years.
Need help building a budget that actually works?
We do this with new high-net-worth households, freelancers transitioning to S-corp, and anyone who feels behind despite earning well.