What is actually safe to spend before payday?
Your bank shows a balance. This calculator subtracts the bills, daily spending, and cushion that balance still has to survive — so you can see the number that is closer to reality.
Example reveal
Actually safe before payday
$145
Your bank shows $850. Shelter-style math says $145 is actually safe before payday because $420 is already spoken for and about $210 may leave through daily spending.
Bills before payday
$420
Daily spending
$210
Cushion
$75
Run the payday math
Use rough numbers. Shelter’s real product connects read-only and watches this automatically.
Shelter-style result
$145 is actually safe before payday
Safe to spend
$145
Daily cap until payday
$24
You can make it, but the margin is thin: keep spending under $24/day until payday and avoid adding new recurring charges.
Built around payday timing
The pain is not just categories. It is bills landing before income does.
No money movement claims
Shelter helps you see and act. It does not hold, move, or control your money.
The automatic version
The calculator is the manual preview. Shelter connects read-only and keeps checking the math for you.