A clearer warning than a low balance alert
Low balance alerts usually fire after the account is already low. Runway math warns you when the current balance will not cover the days and bills ahead.
Paycheck Runway
Paycheck runway calculator
Calculate how many days your current balance can realistically last after bills, daily spending, and a cushion.
Runway is the practical version of a budget when cash is tight. It asks how many days your balance can survive, not whether your monthly category plan looks neat. Shelter turns that runway into plain guidance before payday.
Why Shelter fits
Why people choose Shelter for this use case
The product is built around read-only bank connections, forward-looking alerts, and clear next steps instead of category policing.
Useful for biweekly and semi-monthly pay
The gap between deposits changes the decision. A balance that is fine two days before payday can be dangerous ten days before payday. Shelter is built around that timing.
Safe to spend is runway translated into action
Runway tells you how long the balance may last. Safe to spend tells you what that means for today, after the next paycheck timing is considered.
Read-only guidance, not money movement
Shelter helps you see timing pressure and plan around it. It does not take custody of funds, move money for you, or replace checking your actual bank before making a payment.
Common questions
What is paycheck runway?
Paycheck runway is the number of days your current balance can likely cover after upcoming bills, expected spending, and a cushion are accounted for.
Why not just use my checking balance?
Because the checking balance ignores the time left until payday. A balance can look fine while still being too low for the bills and days ahead.
How does Shelter automate runway?
Shelter connects read-only account data, detects recurring bills and deposits, then keeps the short-term forecast updated so you are not rebuilding the math manually.