How much can you spend before payday? Enter your balance and upcoming costs for an instant estimate after bills, debt payments, daily spending, and a buffer. Free, with no signup or bank login.
Manual math now. Read-only Guardian brief after signup.
Run the payday math
Start with your own numbers below. The example updates instantly as you edit.
Example result — edit the inputs
Your bank balance is not your spendable money.
You can make it, but the margin is thin. Keep spending under $4/day until payday and do not trust the raw bank balance for new purchases.
Daily cap until payday: $4
Formula: balance - bills/subscriptions - debt payments - ($35 x 6 days) - cushion.
You just calculated this by hand. Shelter keeps it updated automatically as bills clear, subscriptions renew, debt payments post, and spending changes.
Create an account and connect your bank read-only for your first free brief. No card required. Then choose a 14-day free trial for ongoing monitoring. Shelter connects read-only through Plaid and cannot move money. Shelter does not sell your financial data.
What happens after you connect
Your first Guardian brief opens with what Shelter found, what is safe, what could squeeze you before payday, and one move.
What Shelter found in bills, debt, subscriptions, and payday timing
What is actually safe before payday after spoken-for money
What could squeeze you before income lands
One move Guardian can watch after you act
The pain is not just categories. It is bills landing before income does.
Shelter helps you see and act. It does not hold, move, or control your money.
This number changes whenever bills clear, debt payments post, or spending changes. Shelter keeps checking the math for you.
Payday math
Safe-to-spend is the money left after you subtract bills, debt payments, and subscriptions due before the next payday, then leave a small buffer. The current bank balance is not that number.
Timing collisions matter more than monthly categories. Two bills that both clear the week before payday can wipe a balance that looked fine on a monthly budget. The useful question is whether the runway to the next deposit covers what is already spoken for.
Next step
If you want a product that watches this timing automatically, compare apps that help avoid overdraft fees. Forecasting, coverage, and cash-advance tools solve different jobs.
To price the same timing mistake if it repeats, use the overdraft fee cost calculator with fees from your own statements.